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# Dependencies
node_modules/
vendor/
# Build outputs
standalone/index.html
dist/
build/
# Go
*.exe
*.exe~
*.dll
*.so
*.dylib
*.test
*.out
go.work
# IDE
.idea/
.vscode/
*.swp
*.swo
*~
# OS
.DS_Store
Thumbs.db
# Environment
.env
.env.local
.env.*.local
*.env
# Logs
*.log
logs/
# Database
*.db
*.sqlite
# Docker
docker-compose.override.yml
# Secrets
*.pem
*.key
secrets/

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README.md Normal file
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# 🔀 Chat Switchboard
A sleek, OpenAI-compatible chat interface with per-conversation model switching, collapsible thinking blocks, and full chat history management.
## Features
- **Multi-Model Support**: Switch models per-chat via quick selector
- **Thinking Blocks**: Collapsible `<thinking>` tags with distinct styling
- **Streaming Responses**: Real-time token streaming with stop button
- **Chat History**: Persistent storage with export (Markdown/JSON/Text)
- **Keyboard Shortcuts**: `Enter` send, `Shift+Enter` newline, `Esc` stop, `Ctrl+B` sidebar, `Ctrl+,` settings
- **Code Highlighting**: Syntax-aware code blocks with copy buttons
- **Regenerate**: Re-run last response with one click
- **Dark Theme**: Easy on the eyes
## Quick Start
### Standalone (No Build Required)
```bash
# Build the single-file version
./build.sh
# Open in browser
xdg-open standalone/index.html
# or
python3 -m http.server 8080 --directory standalone
```
### Development
```bash
# Serve src/ directory for development
python3 -m http.server 8080 --directory src
```
## Project Structure
```
chat-switchboard/
├── build.sh # Builds standalone HTML
├── standalone/ # Built single-file output
│ └── index.html
├── src/ # Source files
│ ├── index.html
│ ├── css/
│ │ └── styles.css
│ └── js/
│ ├── storage.js # LocalStorage utilities
│ ├── state.js # State management
│ ├── api.js # API calls
│ ├── ui.js # UI rendering
│ └── app.js # Main application
├── server/ # Backend (future)
│ ├── main.go
│ ├── handlers/
│ ├── models/
│ └── middleware/
├── migrations/ # PostgreSQL schemas
│ └── 001_initial.sql
├── docker-compose.yml # Local dev environment
└── docs/ # Documentation
```
## Backend (Planned)
The project is structured to support a full backend with:
- **Go server** with Gin/Echo
- **PostgreSQL** for persistent storage
- **User authentication** (optional)
- **API key management** per user
- **Chat syncing** across devices
### Database Schema
See `migrations/001_initial.sql` for the initial PostgreSQL schema.
### Running with Docker
```bash
docker-compose up -d
```
## Configuration
Settings are stored in `localStorage`:
| Key | Description |
|-----|-------------|
| `chatSwitchboard_settings` | API endpoint, model, parameters |
| `chatSwitchboard_models` | Cached model list |
| `chatSwitchboard_chats` | Chat history |
## API Compatibility
Works with any OpenAI-compatible API:
- OpenAI
- Anthropic (via proxy)
- Ollama (`http://localhost:11434/v1`)
- LM Studio
- LocalAI
- vLLM
- Together AI
- OpenRouter
- And more...
## License
MIT
## Credits
Originally inspired by various chat interfaces, enhanced with multi-model switching and thinking block support.

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#!/bin/bash
# ==========================================
# Chat Switchboard - Build Script
# ==========================================
# Combines src/ files into a single standalone HTML file
set -e
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
SRC_DIR="$SCRIPT_DIR/src"
OUTPUT_DIR="$SCRIPT_DIR/standalone"
OUTPUT_FILE="$OUTPUT_DIR/index.html"
echo "🔀 Building Chat Switchboard..."
# Ensure output directory exists
mkdir -p "$OUTPUT_DIR"
# Read source files
CSS_CONTENT=$(cat "$SRC_DIR/css/styles.css")
JS_STORAGE=$(cat "$SRC_DIR/js/storage.js")
JS_STATE=$(cat "$SRC_DIR/js/state.js")
JS_API=$(cat "$SRC_DIR/js/api.js")
JS_UI=$(cat "$SRC_DIR/js/ui.js")
JS_APP=$(cat "$SRC_DIR/js/app.js")
# Read HTML and extract head/body content
HTML_CONTENT=$(cat "$SRC_DIR/index.html")
# Create standalone file
cat > "$OUTPUT_FILE" << 'HTMLEOF'
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Chat Switchboard</title>
<style>
HTMLEOF
# Append CSS
echo "$CSS_CONTENT" >> "$OUTPUT_FILE"
cat >> "$OUTPUT_FILE" << 'HTMLEOF'
</style>
</head>
HTMLEOF
# Extract body content (between <body> and </body>, excluding script tags)
BODY_CONTENT=$(echo "$HTML_CONTENT" | sed -n '/<body>/,/<\/body>/p' | sed '1d;$d' | sed '/<script/,/<\/script>/d')
echo "$BODY_CONTENT" >> "$OUTPUT_FILE"
# Add combined JavaScript
cat >> "$OUTPUT_FILE" << 'HTMLEOF'
<script>
HTMLEOF
echo "$JS_STORAGE" >> "$OUTPUT_FILE"
echo "" >> "$OUTPUT_FILE"
echo "$JS_STATE" >> "$OUTPUT_FILE"
echo "" >> "$OUTPUT_FILE"
echo "$JS_API" >> "$OUTPUT_FILE"
echo "" >> "$OUTPUT_FILE"
echo "$JS_UI" >> "$OUTPUT_FILE"
echo "" >> "$OUTPUT_FILE"
echo "$JS_APP" >> "$OUTPUT_FILE"
cat >> "$OUTPUT_FILE" << 'HTMLEOF'
</script>
</body>
</html>
HTMLEOF
# Get file size
SIZE=$(wc -c < "$OUTPUT_FILE" | tr -d ' ')
SIZE_KB=$((SIZE / 1024))
echo "✅ Build complete!"
echo " Output: $OUTPUT_FILE"
echo " Size: ${SIZE_KB}KB ($SIZE bytes)"
echo ""
echo "📦 To use:"
echo " 1. Open standalone/index.html in a browser"
echo " 2. Or serve with: python3 -m http.server 8080"

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version: '3.8'
services:
# PostgreSQL database
postgres:
image: postgres:16-alpine
container_name: chat-switchboard-db
environment:
POSTGRES_USER: switchboard
POSTGRES_PASSWORD: switchboard_dev
POSTGRES_DB: chat_switchboard
volumes:
- postgres_data:/var/lib/postgresql/data
- ./migrations:/docker-entrypoint-initdb.d:ro
ports:
- "5432:5432"
healthcheck:
test: ["CMD-SHELL", "pg_isready -U switchboard -d chat_switchboard"]
interval: 5s
timeout: 5s
retries: 5
# Adminer for database management (optional)
adminer:
image: adminer:latest
container_name: chat-switchboard-adminer
ports:
- "8081:8080"
depends_on:
- postgres
# Backend API (uncomment when implemented)
# api:
# build:
# context: ./server
# dockerfile: Dockerfile
# container_name: chat-switchboard-api
# environment:
# DATABASE_URL: postgres://switchboard:switchboard_dev@postgres:5432/chat_switchboard?sslmode=disable
# PORT: 8080
# JWT_SECRET: your-secret-key-change-in-production
# ports:
# - "8080:8080"
# depends_on:
# postgres:
# condition: service_healthy
# Frontend dev server (optional)
frontend:
image: nginx:alpine
container_name: chat-switchboard-frontend
volumes:
- ./standalone:/usr/share/nginx/html:ro
ports:
- "3000:80"
volumes:
postgres_data:

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/* ==========================================
Chat Switchboard - Styles
========================================== */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg-primary: #212121;
--bg-secondary: #171717;
--bg-tertiary: #2f2f2f;
--text-primary: #ececec;
--text-secondary: #b4b4b4;
--accent: #10a37f;
--accent-hover: #0d8a6a;
--border: #3a3a3a;
--code-bg: #1e1e1e;
--error: #ff6b6b;
--success: #10a37f;
--warning: #ffd93d;
--thinking-bg: #2a2a3a;
--thinking-border: #4a4a6a;
}
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
background: var(--bg-primary);
color: var(--text-primary);
min-height: 100vh;
display: flex;
flex-direction: column;
}
/* ==========================================
Header
========================================== */
.header {
background: var(--bg-secondary);
padding: 1rem 2rem;
border-bottom: 1px solid var(--border);
display: flex;
justify-content: space-between;
align-items: center;
flex-wrap: wrap;
gap: 1rem;
}
.header h1 {
font-size: 1.5rem;
font-weight: 600;
color: var(--accent);
}
.header-actions {
display: flex;
gap: 0.5rem;
flex-wrap: wrap;
align-items: center;
}
/* ==========================================
Buttons
========================================== */
.btn {
padding: 0.5rem 1rem;
border: none;
border-radius: 6px;
cursor: pointer;
font-size: 0.875rem;
font-weight: 500;
transition: all 0.2s ease;
display: flex;
align-items: center;
gap: 0.5rem;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: transparent; color: var(--error); border: 1px solid var(--error); }
.btn-danger:hover { background: var(--error); color: white; }
.btn-small { padding: 0.25rem 0.5rem; font-size: 0.75rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
/* ==========================================
Layout
========================================== */
.main-container {
display: flex;
flex: 1;
overflow: hidden;
}
.sidebar {
width: 260px;
background: var(--bg-secondary);
border-right: 1px solid var(--border);
display: flex;
flex-direction: column;
transition: width 0.3s ease;
}
.sidebar.collapsed { width: 0; overflow: hidden; }
.sidebar-header {
padding: 1rem;
border-bottom: 1px solid var(--border);
display: flex;
justify-content: space-between;
align-items: center;
}
.sidebar-title {
font-weight: 600;
font-size: 0.875rem;
color: var(--text-secondary);
text-transform: uppercase;
letter-spacing: 0.5px;
}
.new-chat-btn { margin: 1rem; width: calc(100% - 2rem); }
.chat-history { flex: 1; overflow-y: auto; padding: 0.5rem; }
.chat-history-item {
padding: 0.75rem 1rem;
border-radius: 6px;
cursor: pointer;
margin-bottom: 0.25rem;
transition: background 0.2s ease;
display: flex;
justify-content: space-between;
align-items: center;
gap: 0.5rem;
}
.chat-history-item:hover { background: var(--bg-tertiary); }
.chat-history-item.active { background: var(--bg-tertiary); border-left: 3px solid var(--accent); }
.chat-history-item .title {
flex: 1;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
font-size: 0.875rem;
}
.chat-history-item .item-actions {
display: flex;
gap: 0.25rem;
opacity: 0;
transition: opacity 0.2s;
}
.chat-history-item:hover .item-actions { opacity: 1; }
.chat-history-item .item-btn {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
padding: 0.25rem;
border-radius: 4px;
transition: all 0.2s;
}
.chat-history-item .item-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.1); }
.chat-history-item .item-btn.delete:hover { color: var(--error); background: rgba(255, 107, 107, 0.1); }
.chat-area {
flex: 1;
display: flex;
flex-direction: column;
overflow: hidden;
}
.chat-messages {
flex: 1;
overflow-y: auto;
padding: 1rem 2rem;
}
/* ==========================================
Messages
========================================== */
.message {
max-width: 800px;
margin: 0 auto 1.5rem;
animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
.message-content {
display: flex;
gap: 1rem;
align-items: flex-start;
}
.message-avatar {
width: 36px;
height: 36px;
border-radius: 6px;
display: flex;
align-items: center;
justify-content: center;
font-size: 1.25rem;
flex-shrink: 0;
}
.message.user .message-avatar { background: var(--accent); }
.message.assistant .message-avatar { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.message-body { flex: 1; min-width: 0; }
.message-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 0.5rem;
}
.message-role {
font-weight: 600;
font-size: 0.875rem;
color: var(--text-secondary);
}
.message-time {
font-size: 0.7rem;
color: var(--text-secondary);
}
.message-actions {
display: flex;
gap: 0.25rem;
opacity: 0;
transition: opacity 0.2s;
}
.message:hover .message-actions { opacity: 1; }
.message-action-btn {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
padding: 0.25rem 0.5rem;
border-radius: 4px;
font-size: 0.7rem;
transition: all 0.2s;
}
.message-action-btn:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.message-text {
line-height: 1.6;
word-wrap: break-word;
}
.message-text p { margin-bottom: 0.75rem; }
.message-text p:last-child { margin-bottom: 0; }
.message-text code {
background: var(--code-bg);
padding: 0.2rem 0.4rem;
border-radius: 4px;
font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
font-size: 0.875em;
}
.message-text pre {
background: var(--code-bg);
padding: 1rem;
border-radius: 8px;
overflow-x: auto;
margin: 0.75rem 0;
position: relative;
}
.message-text pre code { background: none; padding: 0; }
.copy-code-btn {
position: absolute;
top: 0.5rem;
right: 0.5rem;
background: var(--bg-tertiary);
border: 1px solid var(--border);
color: var(--text-secondary);
padding: 0.25rem 0.5rem;
border-radius: 4px;
font-size: 0.7rem;
cursor: pointer;
opacity: 0;
transition: opacity 0.2s;
}
.message-text pre:hover .copy-code-btn { opacity: 1; }
.copy-code-btn:hover { background: var(--border); color: var(--text-primary); }
/* ==========================================
Thinking Blocks (Collapsible)
========================================== */
.thinking-block {
background: var(--thinking-bg);
border: 1px solid var(--thinking-border);
border-radius: 8px;
margin: 0.75rem 0;
overflow: hidden;
}
.thinking-header {
display: flex;
align-items: center;
gap: 0.5rem;
padding: 0.75rem 1rem;
background: rgba(74, 74, 106, 0.3);
cursor: pointer;
user-select: none;
transition: background 0.2s;
}
.thinking-header:hover {
background: rgba(74, 74, 106, 0.5);
}
.thinking-toggle {
font-size: 0.75rem;
transition: transform 0.2s;
}
.thinking-block.collapsed .thinking-toggle {
transform: rotate(-90deg);
}
.thinking-label {
font-size: 0.8rem;
font-weight: 600;
color: #a0a0d0;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.thinking-content {
padding: 1rem;
font-size: 0.9rem;
color: var(--text-secondary);
border-top: 1px solid var(--thinking-border);
max-height: 300px;
overflow-y: auto;
transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
}
.thinking-block.collapsed .thinking-content {
max-height: 0;
padding: 0 1rem;
opacity: 0;
border-top: none;
}
/* ==========================================
Typing Indicator
========================================== */
.typing-indicator {
display: flex;
gap: 4px;
padding: 0.5rem 0;
}
.typing-indicator span {
width: 8px;
height: 8px;
background: var(--text-secondary);
border-radius: 50%;
animation: bounce 1.4s infinite ease-in-out;
}
.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }
@keyframes bounce {
0%, 80%, 100% { transform: scale(0); }
40% { transform: scale(1); }
}
/* ==========================================
Input Area
========================================== */
.input-area {
background: var(--bg-secondary);
border-top: 1px solid var(--border);
padding: 1rem 2rem;
}
.input-container { max-width: 800px; margin: 0 auto; }
.input-top-bar {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 0.75rem;
gap: 1rem;
flex-wrap: wrap;
}
.model-selector {
display: flex;
align-items: center;
gap: 0.5rem;
}
.model-selector label {
font-size: 0.75rem;
color: var(--text-secondary);
}
.model-selector select {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 6px;
color: var(--text-primary);
padding: 0.35rem 0.75rem;
font-size: 0.8rem;
cursor: pointer;
max-width: 200px;
}
.model-selector select:focus { outline: none; border-color: var(--accent); }
.input-shortcuts {
font-size: 0.7rem;
color: var(--text-secondary);
}
.input-shortcuts kbd {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 3px;
padding: 0.1rem 0.3rem;
font-family: inherit;
}
.input-wrapper {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 12px;
padding: 1rem;
transition: border-color 0.2s ease;
}
.input-wrapper:focus-within { border-color: var(--accent); }
.input-wrapper textarea {
width: 100%;
background: none;
border: none;
color: var(--text-primary);
font-size: 1rem;
font-family: inherit;
resize: none;
outline: none;
line-height: 1.5;
max-height: 200px;
min-height: 60px;
}
.input-wrapper textarea::placeholder { color: var(--text-secondary); }
.input-actions {
display: flex;
justify-content: space-between;
align-items: center;
margin-top: 0.75rem;
padding-top: 0.75rem;
border-top: 1px solid var(--border);
}
.input-left { display: flex; gap: 0.5rem; align-items: center; }
.send-btn {
padding: 0.5rem 1rem;
background: var(--accent);
color: white;
border: none;
border-radius: 6px;
cursor: pointer;
font-weight: 500;
transition: all 0.2s ease;
display: flex;
align-items: center;
gap: 0.5rem;
}
.send-btn:hover:not(:disabled) { background: var(--accent-hover); }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.stop-btn {
padding: 0.5rem 1rem;
background: var(--error);
color: white;
border: none;
border-radius: 6px;
cursor: pointer;
font-weight: 500;
display: none;
align-items: center;
gap: 0.5rem;
}
.stop-btn:hover { background: #ff5252; }
.stop-btn.visible { display: flex; }
/* ==========================================
Modal
========================================== */
.modal-overlay {
position: fixed;
top: 0; left: 0; right: 0; bottom: 0;
background: rgba(0, 0, 0, 0.7);
display: none;
align-items: center;
justify-content: center;
z-index: 1000;
}
.modal-overlay.active { display: flex; }
.modal {
background: var(--bg-secondary);
border-radius: 12px;
width: 90%;
max-width: 600px;
max-height: 90vh;
overflow-y: auto;
animation: modalSlideIn 0.3s ease;
}
@keyframes modalSlideIn {
from { opacity: 0; transform: scale(0.9); }
to { opacity: 1; transform: scale(1); }
}
.modal-header {
padding: 1.5rem;
border-bottom: 1px solid var(--border);
display: flex;
justify-content: space-between;
align-items: center;
}
.modal-header h2 { font-size: 1.25rem; font-weight: 600; }
.modal-close {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
padding: 0.5rem;
border-radius: 6px;
transition: all 0.2s;
font-size: 1.5rem;
line-height: 1;
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.modal-body { padding: 1.5rem; }
.modal-footer {
padding: 1rem 1.5rem;
border-top: 1px solid var(--border);
display: flex;
justify-content: flex-end;
gap: 0.75rem;
}
/* ==========================================
Forms
========================================== */
.form-group { margin-bottom: 1.5rem; }
.form-group label {
display: block;
margin-bottom: 0.5rem;
font-weight: 500;
color: var(--text-secondary);
font-size: 0.875rem;
}
.form-group input,
.form-group select,
.form-group textarea {
width: 100%;
padding: 0.75rem 1rem;
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 8px;
color: var(--text-primary);
font-size: 1rem;
font-family: inherit;
transition: border-color 0.2s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
outline: none;
border-color: var(--accent);
}
.form-group small {
display: block;
margin-top: 0.5rem;
color: var(--text-secondary);
font-size: 0.75rem;
}
.form-row {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 1rem;
}
.toggle-group {
display: flex;
align-items: center;
justify-content: space-between;
padding: 1rem;
background: var(--bg-tertiary);
border-radius: 8px;
margin-bottom: 1rem;
}
.toggle-label { font-weight: 500; }
.toggle-switch {
position: relative;
width: 50px;
height: 26px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
position: absolute;
cursor: pointer;
top: 0; left: 0; right: 0; bottom: 0;
background: var(--border);
border-radius: 26px;
transition: 0.3s;
}
.toggle-slider:before {
position: absolute;
content: "";
height: 20px;
width: 20px;
left: 3px;
bottom: 3px;
background: white;
border-radius: 50%;
transition: 0.3s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(24px); }
/* ==========================================
Toast Notifications
========================================== */
.toast-container {
position: fixed;
bottom: 2rem;
right: 2rem;
z-index: 2000;
display: flex;
flex-direction: column;
gap: 0.5rem;
}
.toast {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 8px;
padding: 1rem 1.5rem;
display: flex;
align-items: center;
gap: 0.75rem;
animation: slideIn 0.3s ease;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
@keyframes slideIn {
from { opacity: 0; transform: translateX(100%); }
to { opacity: 1; transform: translateX(0); }
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--error); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast-close {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
margin-left: auto;
}
/* ==========================================
Dropdown
========================================== */
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
right: 0;
top: 100%;
background: var(--bg-secondary);
border: 1px solid var(--border);
border-radius: 8px;
min-width: 160px;
box-shadow: 0 4px 12px rgba(0,0,0,0.3);
z-index: 100;
}
.dropdown-content.show { display: block; }
.dropdown-item {
display: block;
width: 100%;
padding: 0.75rem 1rem;
background: none;
border: none;
color: var(--text-primary);
text-align: left;
cursor: pointer;
font-size: 0.875rem;
transition: background 0.2s;
}
.dropdown-item:hover { background: var(--bg-tertiary); }
.dropdown-item:first-child { border-radius: 8px 8px 0 0; }
.dropdown-item:last-child { border-radius: 0 0 8px 8px; }
/* ==========================================
Empty State
========================================== */
.empty-state {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100%;
text-align: center;
padding: 2rem;
}
.empty-state-icon {
width: 80px;
height: 80px;
background: var(--bg-tertiary);
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 1.5rem;
}
.empty-state-icon svg { width: 40px; height: 40px; stroke: var(--accent); }
.empty-state h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.empty-state p { color: var(--text-secondary); max-width: 400px; }
/* ==========================================
Responsive
========================================== */
@media (max-width: 768px) {
.sidebar {
position: fixed;
left: 0; top: 0; bottom: 0;
z-index: 100;
transform: translateX(-100%);
}
.sidebar.open { transform: translateX(0); }
.header { padding: 1rem; }
.chat-messages { padding: 1rem; }
.input-area { padding: 1rem; }
.form-row { grid-template-columns: 1fr; }
.input-top-bar { flex-direction: column; align-items: flex-start; }
}
/* ==========================================
Scrollbar
========================================== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

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/**
* Chat Switchboard - API Module
* Handles communication with LLM backends
*/
const API = {
/**
* Fetch available models from endpoint
*/
async fetchModels(endpoint, apiKey) {
const response = await fetch(endpoint.replace(/\/$/, '') + '/models', {
headers: {
'Authorization': `Bearer ${apiKey}`,
'Content-Type': 'application/json'
}
});
if (!response.ok) {
throw new Error(`API Error: ${response.status}`);
}
const data = await response.json();
const models = data.data || data.models || data || [];
return Array.isArray(models)
? models.map(m => ({
id: m.id || m.name || m,
owned_by: m.owned_by || null
})).sort((a, b) => a.id.localeCompare(b.id))
: [];
},
/**
* Send chat completion request
*/
async sendMessage(settings, messages, onChunk = null) {
const endpoint = settings.apiEndpoint.replace(/\/$/, '') + '/chat/completions';
const controller = new AbortController();
const response = await fetch(endpoint, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer ${settings.apiKey}`
},
body: JSON.stringify({
model: settings.model,
messages: messages.map(m => ({ role: m.role, content: m.content })),
max_tokens: settings.maxTokens,
temperature: settings.temperature,
top_p: settings.topP,
presence_penalty: settings.presencePenalty,
stream: settings.stream
}),
signal: controller.signal
});
if (!response.ok) {
const error = await response.text();
throw new Error(`API Error: ${response.status} - ${error}`);
}
let content = '';
if (settings.stream && onChunk) {
const reader = response.body.getReader();
const decoder = new TextDecoder();
while (true) {
const { done, value } = await reader.read();
if (done) break;
const chunk = decoder.decode(value);
const lines = chunk.split('\n');
for (const line of lines) {
if (line.startsWith('data: ')) {
const data = line.slice(6);
if (data === '[DONE]') continue;
try {
const parsed = JSON.parse(data);
const delta = parsed.choices?.[0]?.delta?.content || '';
content += delta;
onChunk(content, delta);
} catch (e) {}
}
}
}
} else {
const data = await response.json();
content = data.choices?.[0]?.message?.content || 'No response';
}
return { content, controller };
}
};

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/**
* Chat Switchboard - Storage Module
* Abstraction layer for storage (localStorage now, API later)
*/
const Storage = {
// Backend mode: 'local' or 'api'
mode: 'local',
apiBase: '/api',
async get(key, defaultValue = null) {
if (this.mode === 'api') {
try {
const response = await fetch(`${this.apiBase}/storage/${key}`);
if (response.ok) {
return await response.json();
}
return defaultValue;
} catch (e) {
console.error('Storage API get error:', e);
return defaultValue;
}
}
// Local storage
try {
const item = localStorage.getItem(key);
return item ? JSON.parse(item) : defaultValue;
} catch (e) {
console.error('Storage get error:', e);
return defaultValue;
}
},
async set(key, value) {
if (this.mode === 'api') {
try {
await fetch(`${this.apiBase}/storage/${key}`, {
method: 'PUT',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(value)
});
} catch (e) {
console.error('Storage API set error:', e);
}
return;
}
// Local storage
try {
localStorage.setItem(key, JSON.stringify(value));
} catch (e) {
console.error('Storage set error:', e);
}
},
async remove(key) {
if (this.mode === 'api') {
try {
await fetch(`${this.apiBase}/storage/${key}`, { method: 'DELETE' });
} catch (e) {
console.error('Storage API remove error:', e);
}
return;
}
try {
localStorage.removeItem(key);
} catch (e) {
console.error('Storage remove error:', e);
}
},
// Switch to API mode
useApi(baseUrl = '/api') {
this.mode = 'api';
this.apiBase = baseUrl;
},
// Switch to local mode
useLocal() {
this.mode = 'local';
}
};
// For standalone HTML, use sync versions
const StorageSync = {
get(key, defaultValue = null) {
try {
const item = localStorage.getItem(key);
return item ? JSON.parse(item) : defaultValue;
} catch (e) {
return defaultValue;
}
},
set(key, value) {
try {
localStorage.setItem(key, JSON.stringify(value));
} catch (e) {
console.error('Storage set error:', e);
}
},
remove(key) {
try {
localStorage.removeItem(key);
} catch (e) {}
}
};

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-- ==========================================
-- Chat Switchboard - Initial Schema
-- ==========================================
-- PostgreSQL migration for backend support
-- Enable UUID extension
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
-- Users table (optional, for multi-user support)
CREATE TABLE users (
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
email VARCHAR(255) UNIQUE,
password_hash VARCHAR(255),
created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
-- API configurations per user
CREATE TABLE api_configs (
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
user_id UUID REFERENCES users(id) ON DELETE CASCADE,
name VARCHAR(100) NOT NULL DEFAULT 'default',
endpoint VARCHAR(500) NOT NULL,
api_key_encrypted TEXT NOT NULL,
is_default BOOLEAN DEFAULT FALSE,
created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
UNIQUE(user_id, name)
);
-- User settings
CREATE TABLE user_settings (
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
user_id UUID UNIQUE REFERENCES users(id) ON DELETE CASCADE,
default_model VARCHAR(100) DEFAULT 'gpt-3.5-turbo',
stream_responses BOOLEAN DEFAULT TRUE,
show_thinking BOOLEAN DEFAULT TRUE,
system_prompt TEXT,
max_tokens INTEGER DEFAULT 4096,
temperature DECIMAL(3,2) DEFAULT 0.7,
top_p DECIMAL(3,2) DEFAULT 1.0,
presence_penalty DECIMAL(3,2) DEFAULT 0.0,
created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
-- Chats
CREATE TABLE chats (
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
user_id UUID REFERENCES users(id) ON DELETE CASCADE,
title VARCHAR(255) NOT NULL,
model VARCHAR(100),
api_config_id UUID REFERENCES api_configs(id) ON DELETE SET NULL,
is_archived BOOLEAN DEFAULT FALSE,
is_pinned BOOLEAN DEFAULT FALSE,
created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
-- Messages
CREATE TABLE messages (
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
chat_id UUID NOT NULL REFERENCES chats(id) ON DELETE CASCADE,
role VARCHAR(20) NOT NULL CHECK (role IN ('system', 'user', 'assistant')),
content TEXT NOT NULL,
model VARCHAR(100),
tokens_used INTEGER,
created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
-- Cached models per API config
CREATE TABLE cached_models (
id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
api_config_id UUID NOT NULL REFERENCES api_configs(id) ON DELETE CASCADE,
model_id VARCHAR(100) NOT NULL,
owned_by VARCHAR(100),
cached_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
UNIQUE(api_config_id, model_id)
);
-- Indexes for performance
CREATE INDEX idx_chats_user_id ON chats(user_id);
CREATE INDEX idx_chats_updated_at ON chats(updated_at DESC);
CREATE INDEX idx_messages_chat_id ON messages(chat_id);
CREATE INDEX idx_messages_created_at ON messages(created_at);
CREATE INDEX idx_api_configs_user_id ON api_configs(user_id);
-- Updated at trigger function
CREATE OR REPLACE FUNCTION update_updated_at_column()
RETURNS TRIGGER AS $$
BEGIN
NEW.updated_at = NOW();
RETURN NEW;
END;
$$ language 'plpgsql';
-- Apply updated_at triggers
CREATE TRIGGER update_users_updated_at BEFORE UPDATE ON users
FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
CREATE TRIGGER update_api_configs_updated_at BEFORE UPDATE ON api_configs
FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
CREATE TRIGGER update_user_settings_updated_at BEFORE UPDATE ON user_settings
FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
CREATE TRIGGER update_chats_updated_at BEFORE UPDATE ON chats
FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
-- View for chat list with message count
CREATE VIEW chat_list AS
SELECT
c.id,
c.user_id,
c.title,
c.model,
c.is_archived,
c.is_pinned,
c.created_at,
c.updated_at,
COUNT(m.id) as message_count,
MAX(m.created_at) as last_message_at
FROM chats c
LEFT JOIN messages m ON m.chat_id = c.id
GROUP BY c.id;

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server/main.go Normal file
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package main
import (
"log"
"os"
"github.com/gin-gonic/gin"
"github.com/joho/godotenv"
)
func main() {
// Load .env file if present
godotenv.Load()
// Get port from environment
port := os.Getenv("PORT")
if port == "" {
port = "8080"
}
// Initialize router
r := gin.Default()
// CORS middleware
r.Use(func(c *gin.Context) {
c.Header("Access-Control-Allow-Origin", "*")
c.Header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
c.Header("Access-Control-Allow-Headers", "Content-Type, Authorization")
if c.Request.Method == "OPTIONS" {
c.AbortWithStatus(204)
return
}
c.Next()
})
// Health check
r.GET("/health", func(c *gin.Context) {
c.JSON(200, gin.H{"status": "ok"})
})
// API routes
api := r.Group("/api/v1")
{
// Auth routes
api.POST("/auth/register", handleRegister)
api.POST("/auth/login", handleLogin)
// Protected routes
protected := api.Group("")
protected.Use(authMiddleware())
{
// Chats
protected.GET("/chats", handleListChats)
protected.POST("/chats", handleCreateChat)
protected.GET("/chats/:id", handleGetChat)
protected.PUT("/chats/:id", handleUpdateChat)
protected.DELETE("/chats/:id", handleDeleteChat)
// Messages
protected.GET("/chats/:id/messages", handleGetMessages)
protected.POST("/chats/:id/messages", handleCreateMessage)
// Settings
protected.GET("/settings", handleGetSettings)
protected.PUT("/settings", handleUpdateSettings)
// API Configs
protected.GET("/api-configs", handleListAPIConfigs)
protected.POST("/api-configs", handleCreateAPIConfig)
protected.DELETE("/api-configs/:id", handleDeleteAPIConfig)
// Models (proxy to configured API)
protected.GET("/models", handleListModels)
}
}
log.Printf("🔀 Chat Switchboard API starting on port %s", port)
r.Run(":" + port)
}
// Placeholder handlers - implement in handlers/ package
func handleRegister(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleLogin(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleListChats(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleCreateChat(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleGetChat(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleUpdateChat(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleDeleteChat(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleGetMessages(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleCreateMessage(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleGetSettings(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleUpdateSettings(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleListAPIConfigs(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func handleCreateAPIConfig(c *gin.Context) {
c.JSON(501, gin.H{"error": "not implemented"})
}
func handleDeleteAPIConfig(c *gin.Context) {
c.JSON(501, gin.H{"error": "not implemented"})
}
func handleListModels(c *gin.Context) { c.JSON(501, gin.H{"error": "not implemented"}) }
func authMiddleware() gin.HandlerFunc {
return func(c *gin.Context) {
// TODO: Implement JWT validation
c.Next()
}
}

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/* ==========================================
Chat Switchboard - Styles
========================================== */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg-primary: #212121;
--bg-secondary: #171717;
--bg-tertiary: #2f2f2f;
--text-primary: #ececec;
--text-secondary: #b4b4b4;
--accent: #10a37f;
--accent-hover: #0d8a6a;
--border: #3a3a3a;
--code-bg: #1e1e1e;
--error: #ff6b6b;
--success: #10a37f;
--warning: #ffd93d;
--thinking-bg: #1a1a2e;
--thinking-border: #4a4a6a;
--thinking-text: #a0a0c0;
}
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
background: var(--bg-primary);
color: var(--text-primary);
min-height: 100vh;
display: flex;
flex-direction: column;
}
/* Header */
.header {
background: var(--bg-secondary);
padding: 1rem 2rem;
border-bottom: 1px solid var(--border);
display: flex;
justify-content: space-between;
align-items: center;
flex-wrap: wrap;
gap: 1rem;
}
.header h1 {
font-size: 1.5rem;
font-weight: 600;
color: var(--accent);
}
.header-actions {
display: flex;
gap: 0.5rem;
flex-wrap: wrap;
align-items: center;
}
/* Buttons */
.btn {
padding: 0.5rem 1rem;
border: none;
border-radius: 6px;
cursor: pointer;
font-size: 0.875rem;
font-weight: 500;
transition: all 0.2s ease;
display: flex;
align-items: center;
gap: 0.5rem;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: transparent; color: var(--error); border: 1px solid var(--error); }
.btn-danger:hover { background: var(--error); color: white; }
.btn-small { padding: 0.25rem 0.5rem; font-size: 0.75rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
/* Layout */
.main-container {
display: flex;
flex: 1;
overflow: hidden;
}
/* Sidebar */
.sidebar {
width: 260px;
background: var(--bg-secondary);
border-right: 1px solid var(--border);
display: flex;
flex-direction: column;
transition: width 0.3s ease;
}
.sidebar.collapsed { width: 0; overflow: hidden; }
.sidebar-header {
padding: 1rem;
border-bottom: 1px solid var(--border);
}
.sidebar-title {
font-weight: 600;
font-size: 0.875rem;
color: var(--text-secondary);
text-transform: uppercase;
letter-spacing: 0.5px;
}
.new-chat-btn { margin: 1rem; width: calc(100% - 2rem); }
.chat-history { flex: 1; overflow-y: auto; padding: 0.5rem; }
.chat-history-item {
padding: 0.75rem 1rem;
border-radius: 6px;
cursor: pointer;
margin-bottom: 0.25rem;
transition: background 0.2s ease;
display: flex;
justify-content: space-between;
align-items: center;
gap: 0.5rem;
}
.chat-history-item:hover { background: var(--bg-tertiary); }
.chat-history-item.active { background: var(--bg-tertiary); border-left: 3px solid var(--accent); }
.chat-history-item .title {
flex: 1;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
font-size: 0.875rem;
}
.chat-history-item .item-actions {
display: flex;
gap: 0.25rem;
opacity: 0;
transition: opacity 0.2s;
}
.chat-history-item:hover .item-actions { opacity: 1; }
.chat-history-item .item-btn {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
padding: 0.25rem;
border-radius: 4px;
transition: all 0.2s;
}
.chat-history-item .item-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.1); }
.chat-history-item .item-btn.delete:hover { color: var(--error); background: rgba(255, 107, 107, 0.1); }
/* Chat Area */
.chat-area {
flex: 1;
display: flex;
flex-direction: column;
overflow: hidden;
}
.chat-messages {
flex: 1;
overflow-y: auto;
padding: 1rem 2rem;
}
/* Messages */
.message {
max-width: 800px;
margin: 0 auto 1.5rem;
animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
.message-content {
display: flex;
gap: 1rem;
align-items: flex-start;
}
.message-avatar {
width: 36px;
height: 36px;
border-radius: 6px;
display: flex;
align-items: center;
justify-content: center;
font-size: 1.25rem;
flex-shrink: 0;
}
.message.user .message-avatar { background: var(--accent); }
.message.assistant .message-avatar { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.message-body { flex: 1; min-width: 0; }
.message-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 0.5rem;
}
.message-role {
font-weight: 600;
font-size: 0.875rem;
color: var(--text-secondary);
}
.message-time {
font-size: 0.7rem;
color: var(--text-secondary);
}
.message-actions {
display: flex;
gap: 0.25rem;
opacity: 0;
transition: opacity 0.2s;
}
.message:hover .message-actions { opacity: 1; }
.message-action-btn {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
padding: 0.25rem 0.5rem;
border-radius: 4px;
font-size: 0.7rem;
transition: all 0.2s;
}
.message-action-btn:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.message-text {
line-height: 1.6;
word-wrap: break-word;
}
.message-text p { margin-bottom: 0.75rem; }
.message-text p:last-child { margin-bottom: 0; }
/* Code blocks */
.message-text code {
background: var(--code-bg);
padding: 0.2rem 0.4rem;
border-radius: 4px;
font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
font-size: 0.875em;
}
.message-text pre {
background: var(--code-bg);
padding: 1rem;
border-radius: 8px;
overflow-x: auto;
margin: 0.75rem 0;
position: relative;
}
.message-text pre code { background: none; padding: 0; }
.copy-code-btn {
position: absolute;
top: 0.5rem;
right: 0.5rem;
background: var(--bg-tertiary);
border: 1px solid var(--border);
color: var(--text-secondary);
padding: 0.25rem 0.5rem;
border-radius: 4px;
font-size: 0.7rem;
cursor: pointer;
opacity: 0;
transition: opacity 0.2s;
}
.message-text pre:hover .copy-code-btn { opacity: 1; }
.copy-code-btn:hover { background: var(--border); color: var(--text-primary); }
/* ==========================================
THINKING BLOCKS - Collapsible & Styled
========================================== */
.thinking-block {
background: var(--thinking-bg);
border: 1px solid var(--thinking-border);
border-radius: 8px;
margin: 0.75rem 0;
overflow: hidden;
}
.thinking-header {
display: flex;
align-items: center;
gap: 0.5rem;
padding: 0.5rem 1rem;
background: rgba(74, 74, 106, 0.3);
cursor: pointer;
user-select: none;
transition: background 0.2s;
}
.thinking-header:hover {
background: rgba(74, 74, 106, 0.5);
}
.thinking-toggle {
font-size: 0.75rem;
transition: transform 0.2s;
color: var(--thinking-text);
}
.thinking-block.collapsed .thinking-toggle {
transform: rotate(-90deg);
}
.thinking-label {
font-size: 0.75rem;
font-weight: 600;
color: var(--thinking-text);
text-transform: uppercase;
letter-spacing: 0.5px;
}
.thinking-content {
padding: 1rem;
color: var(--thinking-text);
font-size: 0.9rem;
line-height: 1.5;
max-height: 300px;
overflow-y: auto;
transition: max-height 0.3s ease, padding 0.3s ease;
}
.thinking-block.collapsed .thinking-content {
max-height: 0;
padding: 0 1rem;
overflow: hidden;
}
/* Typing indicator */
.typing-indicator {
display: flex;
gap: 4px;
padding: 0.5rem 0;
}
.typing-indicator span {
width: 8px;
height: 8px;
background: var(--text-secondary);
border-radius: 50%;
animation: bounce 1.4s infinite ease-in-out;
}
.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }
@keyframes bounce {
0%, 80%, 100% { transform: scale(0); }
40% { transform: scale(1); }
}
/* Input Area */
.input-area {
background: var(--bg-secondary);
border-top: 1px solid var(--border);
padding: 1rem 2rem;
}
.input-container { max-width: 800px; margin: 0 auto; }
.input-top-bar {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 0.75rem;
gap: 1rem;
flex-wrap: wrap;
}
.model-selector {
display: flex;
align-items: center;
gap: 0.5rem;
}
.model-selector label {
font-size: 0.75rem;
color: var(--text-secondary);
}
.model-selector select {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 6px;
color: var(--text-primary);
padding: 0.35rem 0.75rem;
font-size: 0.8rem;
cursor: pointer;
max-width: 200px;
}
.model-selector select:focus { outline: none; border-color: var(--accent); }
.input-shortcuts {
font-size: 0.7rem;
color: var(--text-secondary);
}
.input-shortcuts kbd {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 3px;
padding: 0.1rem 0.3rem;
font-family: inherit;
}
.input-wrapper {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 12px;
padding: 1rem;
transition: border-color 0.2s ease;
}
.input-wrapper:focus-within { border-color: var(--accent); }
.input-wrapper textarea {
width: 100%;
background: none;
border: none;
color: var(--text-primary);
font-size: 1rem;
font-family: inherit;
resize: none;
outline: none;
line-height: 1.5;
max-height: 200px;
min-height: 60px;
}
.input-wrapper textarea::placeholder { color: var(--text-secondary); }
.input-actions {
display: flex;
justify-content: space-between;
align-items: center;
margin-top: 0.75rem;
padding-top: 0.75rem;
border-top: 1px solid var(--border);
}
.input-left { display: flex; gap: 0.5rem; align-items: center; }
.send-btn {
padding: 0.5rem 1rem;
background: var(--accent);
color: white;
border: none;
border-radius: 6px;
cursor: pointer;
font-weight: 500;
transition: all 0.2s ease;
display: flex;
align-items: center;
gap: 0.5rem;
}
.send-btn:hover:not(:disabled) { background: var(--accent-hover); }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.stop-btn {
padding: 0.5rem 1rem;
background: var(--error);
color: white;
border: none;
border-radius: 6px;
cursor: pointer;
font-weight: 500;
display: none;
align-items: center;
gap: 0.5rem;
}
.stop-btn:hover { background: #ff5252; }
.stop-btn.visible { display: flex; }
/* Modal */
.modal-overlay {
position: fixed;
top: 0; left: 0; right: 0; bottom: 0;
background: rgba(0, 0, 0, 0.7);
display: none;
align-items: center;
justify-content: center;
z-index: 1000;
}
.modal-overlay.active { display: flex; }
.modal {
background: var(--bg-secondary);
border-radius: 12px;
width: 90%;
max-width: 600px;
max-height: 90vh;
overflow-y: auto;
animation: modalSlideIn 0.3s ease;
}
@keyframes modalSlideIn {
from { opacity: 0; transform: scale(0.9); }
to { opacity: 1; transform: scale(1); }
}
.modal-header {
padding: 1.5rem;
border-bottom: 1px solid var(--border);
display: flex;
justify-content: space-between;
align-items: center;
}
.modal-header h2 { font-size: 1.25rem; font-weight: 600; }
.modal-close {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
padding: 0.5rem;
border-radius: 6px;
transition: all 0.2s;
font-size: 1.5rem;
line-height: 1;
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.modal-body { padding: 1.5rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group label {
display: block;
margin-bottom: 0.5rem;
font-weight: 500;
color: var(--text-secondary);
font-size: 0.875rem;
}
.form-group input,
.form-group select,
.form-group textarea {
width: 100%;
padding: 0.75rem 1rem;
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 8px;
color: var(--text-primary);
font-size: 1rem;
font-family: inherit;
transition: border-color 0.2s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
outline: none;
border-color: var(--accent);
}
.form-group small {
display: block;
margin-top: 0.5rem;
color: var(--text-secondary);
font-size: 0.75rem;
}
.form-row {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 1rem;
}
.toggle-group {
display: flex;
align-items: center;
justify-content: space-between;
padding: 1rem;
background: var(--bg-tertiary);
border-radius: 8px;
margin-bottom: 1rem;
}
.toggle-label { font-weight: 500; }
.toggle-switch {
position: relative;
width: 50px;
height: 26px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
position: absolute;
cursor: pointer;
top: 0; left: 0; right: 0; bottom: 0;
background: var(--border);
border-radius: 26px;
transition: 0.3s;
}
.toggle-slider:before {
position: absolute;
content: "";
height: 20px;
width: 20px;
left: 3px;
bottom: 3px;
background: white;
border-radius: 50%;
transition: 0.3s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(24px); }
.modal-footer {
padding: 1rem 1.5rem;
border-top: 1px solid var(--border);
display: flex;
justify-content: flex-end;
gap: 0.75rem;
}
/* Toast */
.toast-container {
position: fixed;
bottom: 2rem;
right: 2rem;
z-index: 2000;
display: flex;
flex-direction: column;
gap: 0.5rem;
}
.toast {
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 8px;
padding: 1rem 1.5rem;
display: flex;
align-items: center;
gap: 0.75rem;
animation: slideIn 0.3s ease;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
@keyframes slideIn {
from { opacity: 0; transform: translateX(100%); }
to { opacity: 1; transform: translateX(0); }
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--error); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast-close {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
margin-left: auto;
}
/* Empty State */
.empty-state {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100%;
text-align: center;
padding: 2rem;
}
.empty-state-icon {
width: 80px;
height: 80px;
background: var(--bg-tertiary);
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 1.5rem;
}
.empty-state-icon svg { width: 40px; height: 40px; stroke: var(--accent); }
.empty-state h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.empty-state p { color: var(--text-secondary); max-width: 400px; }
/* Dropdown */
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
right: 0;
top: 100%;
background: var(--bg-secondary);
border: 1px solid var(--border);
border-radius: 8px;
min-width: 160px;
box-shadow: 0 4px 12px rgba(0,0,0,0.3);
z-index: 100;
}
.dropdown-content.show { display: block; }
.dropdown-item {
display: block;
width: 100%;
padding: 0.75rem 1rem;
background: none;
border: none;
color: var(--text-primary);
text-align: left;
cursor: pointer;
font-size: 0.875rem;
transition: background 0.2s;
}
.dropdown-item:hover { background: var(--bg-tertiary); }
.dropdown-item:first-child { border-radius: 8px 8px 0 0; }
.dropdown-item:last-child { border-radius: 0 0 8px 8px; }
/* Responsive */
@media (max-width: 768px) {
.sidebar {
position: fixed;
left: 0; top: 0; bottom: 0;
z-index: 100;
transform: translateX(-100%);
}
.sidebar.open { transform: translateX(0); }
.header { padding: 1rem; }
.chat-messages { padding: 1rem; }
.input-area { padding: 1rem; }
.form-row { grid-template-columns: 1fr; }
.input-top-bar { flex-direction: column; align-items: flex-start; }
}
/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Chat Switchboard</title>
<link rel="stylesheet" href="css/styles.css">
</head>
<body>
<header class="header">
<h1>🔀 Chat Switchboard</h1>
<div class="header-actions">
<button class="btn btn-secondary" id="toggleSidebarBtn" title="Toggle Sidebar (Ctrl+B)">
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect>
<line x1="9" y1="3" x2="9" y2="21"></line>
</svg>
</button>
<div class="dropdown">
<button class="btn btn-secondary" id="exportBtn" title="Export Chat">
📥 Export
</button>
<div class="dropdown-content" id="exportDropdown">
<button class="dropdown-item" onclick="exportChat('markdown')">📄 Markdown</button>
<button class="dropdown-item" onclick="exportChat('json')">📋 JSON</button>
<button class="dropdown-item" onclick="exportChat('text')">📝 Plain Text</button>
</div>
</div>
<button class="btn btn-secondary" id="settingsBtn" title="Settings (Ctrl+,)">
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<circle cx="12" cy="12" r="3"></circle>
<path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"></path>
</svg>
Settings
</button>
</div>
</header>
<div class="main-container">
<aside class="sidebar" id="sidebar">
<div class="sidebar-header">
<span class="sidebar-title">Chat History</span>
</div>
<button class="btn btn-primary new-chat-btn" id="newChatBtn">
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<line x1="12" y1="5" x2="12" y2="19"></line>
<line x1="5" y1="12" x2="19" y2="12"></line>
</svg>
New Chat
</button>
<div class="chat-history" id="chatHistory"></div>
</aside>
<main class="chat-area">
<div class="chat-messages" id="chatMessages">
<div class="empty-state" id="emptyState">
<div class="empty-state-icon">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path>
</svg>
</div>
<h2>Start a Conversation</h2>
<p>Configure your API settings and start chatting</p>
<button class="btn btn-primary" style="margin-top: 1.5rem;" id="configureBtn">⚙️ Configure API</button>
</div>
</div>
<div class="input-area">
<div class="input-container">
<div class="input-top-bar">
<div class="model-selector">
<label for="quickModel">Model:</label>
<select id="quickModel">
<option value="">-- Configure in Settings --</option>
</select>
<button class="btn btn-small btn-secondary" id="quickFetchBtn" title="Refresh models">🔄</button>
</div>
<div class="input-shortcuts">
<kbd>Enter</kbd> send · <kbd>Shift+Enter</kbd> newline · <kbd>Esc</kbd> stop
</div>
</div>
<div class="input-wrapper">
<textarea id="messageInput" placeholder="Type your message..." rows="1"></textarea>
<div class="input-actions">
<div class="input-left">
<button class="btn btn-small btn-secondary" id="regenerateBtn" title="Regenerate last response" style="display: none;">🔄 Regenerate</button>
</div>
<div style="display: flex; gap: 0.5rem;">
<button class="stop-btn" id="stopBtn">⏹ Stop</button>
<button class="send-btn" id="sendBtn">
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<line x1="22" y1="2" x2="11" y2="13"></line>
<polygon points="22 2 15 22 11 13 2 9 22 2"></polygon>
</svg>
Send
</button>
</div>
</div>
</div>
</div>
</div>
</main>
</div>
<!-- Settings Modal -->
<div class="modal-overlay" id="settingsModal">
<div class="modal">
<div class="modal-header">
<h2>⚙️ Settings</h2>
<button class="modal-close" id="closeModalBtn"></button>
</div>
<div class="modal-body">
<div class="form-group">
<label for="apiEndpoint">API Endpoint</label>
<input type="text" id="apiEndpoint" placeholder="https://api.openai.com/v1">
<small>Base URL for the OpenAI-compatible API</small>
</div>
<div class="form-group">
<label for="apiKey">API Key</label>
<input type="password" id="apiKey" placeholder="sk-...">
<small>Your API key for authentication</small>
</div>
<div class="form-group">
<label for="model">Default Model</label>
<div style="display: flex; gap: 0.5rem;">
<select id="model" style="flex: 1;">
<option value="">-- Select or type below --</option>
</select>
<button type="button" class="btn btn-secondary" id="fetchModelsBtn" title="Fetch available models">
🔄 Fetch
</button>
</div>
<input type="text" id="modelCustom" placeholder="Or type custom model name..." style="margin-top: 0.5rem;">
<small>Select from list or enter custom model name</small>
</div>
<div class="toggle-group">
<span class="toggle-label">Stream Responses</span>
<label class="toggle-switch">
<input type="checkbox" id="streamResponse" checked>
<span class="toggle-slider"></span>
</label>
</div>
<div class="toggle-group">
<span class="toggle-label">Save Chat History</span>
<label class="toggle-switch">
<input type="checkbox" id="saveHistory" checked>
<span class="toggle-slider"></span>
</label>
</div>
<div class="toggle-group">
<span class="toggle-label">Show Thinking Blocks</span>
<label class="toggle-switch">
<input type="checkbox" id="showThinking" checked>
<span class="toggle-slider"></span>
</label>
</div>
<div class="form-group">
<label for="systemPrompt">System Prompt (Optional)</label>
<textarea id="systemPrompt" rows="3" placeholder="You are a helpful AI assistant."></textarea>
<small>Instructions that define the AI's behavior</small>
</div>
<div class="form-row">
<div class="form-group">
<label for="maxTokens">Max Tokens</label>
<input type="number" id="maxTokens" value="4096" min="1" max="32768">
</div>
<div class="form-group">
<label for="temperature">Temperature</label>
<input type="number" id="temperature" value="0.7" min="0" max="2" step="0.1">
</div>
</div>
<div class="form-row">
<div class="form-group">
<label for="topP">Top P</label>
<input type="number" id="topP" value="1" min="0" max="1" step="0.1">
</div>
<div class="form-group">
<label for="presencePenalty">Presence Penalty</label>
<input type="number" id="presencePenalty" value="0" min="-2" max="2" step="0.1">
</div>
</div>
</div>
<div class="modal-footer">
<button class="btn btn-secondary" id="cancelBtn">Cancel</button>
<button class="btn btn-primary" id="saveBtn">💾 Save Settings</button>
</div>
</div>
</div>
<div class="toast-container" id="toastContainer"></div>
<script src="js/storage.js"></script>
<script src="js/state.js"></script>
<script src="js/api.js"></script>
<script src="js/ui.js"></script>
<script src="js/app.js"></script>
</body>
</html>

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// ==========================================
// API Functions
// ==========================================
async function fetchModels(showInModal = true) {
const endpoint = showInModal
? document.getElementById('apiEndpoint').value.trim()
: State.settings.apiEndpoint;
const apiKey = showInModal
? document.getElementById('apiKey').value.trim()
: State.settings.apiKey;
if (!endpoint || !apiKey) {
showToast('⚠️ Configure API endpoint and key first', 'warning');
if (!showInModal) openSettings();
return;
}
const btn = showInModal
? document.getElementById('fetchModelsBtn')
: document.getElementById('quickFetchBtn');
const originalText = btn.innerHTML;
btn.innerHTML = '⏳';
btn.disabled = true;
try {
const response = await fetch(endpoint.replace(/\/$/, '') + '/models', {
headers: {
'Authorization': `Bearer ${apiKey}`,
'Content-Type': 'application/json'
}
});
if (!response.ok) {
throw new Error(`API Error: ${response.status}`);
}
const data = await response.json();
const models = data.data || data.models || data || [];
State.models = Array.isArray(models)
? models.map(m => ({
id: m.id || m.name || m,
owned_by: m.owned_by || null
})).sort((a, b) => a.id.localeCompare(b.id))
: [];
saveModels();
if (showInModal) {
populateModelSelect(document.getElementById('model'));
}
updateQuickModelSelector();
showToast(`✅ Loaded ${State.models.length} models`, 'success');
} catch (error) {
console.error('Fetch models error:', error);
showToast(`❌ Failed: ${error.message}`, 'error');
} finally {
btn.innerHTML = originalText;
btn.disabled = false;
}
}
async function sendApiRequest(messages) {
const chatContainer = document.getElementById('chatMessages');
// Add typing indicator
const typingDiv = document.createElement('div');
typingDiv.className = 'message assistant';
typingDiv.id = 'typingIndicator';
typingDiv.innerHTML = `
<div class="message-content">
<div class="message-avatar">🤖</div>
<div class="message-body">
<div class="message-role">Assistant</div>
<div class="typing-indicator"><span></span><span></span><span></span></div>
</div>
</div>
`;
chatContainer.appendChild(typingDiv);
scrollToBottom();
State.isGenerating = true;
State.abortController = new AbortController();
document.getElementById('stopBtn').classList.add('visible');
document.getElementById('sendBtn').disabled = true;
try {
const endpoint = State.settings.apiEndpoint.replace(/\/$/, '') + '/chat/completions';
const model = document.getElementById('quickModel').value || State.settings.model;
const response = await fetch(endpoint, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer ${State.settings.apiKey}`
},
body: JSON.stringify({
model,
messages: messages.map(m => ({ role: m.role, content: m.content })),
max_tokens: State.settings.maxTokens,
temperature: State.settings.temperature,
top_p: State.settings.topP,
presence_penalty: State.settings.presencePenalty,
stream: State.settings.stream
}),
signal: State.abortController.signal
});
if (!response.ok) {
const error = await response.text();
throw new Error(`API Error: ${response.status} - ${error}`);
}
document.getElementById('typingIndicator')?.remove();
let assistantContent = '';
if (State.settings.stream) {
const assistantDiv = document.createElement('div');
assistantDiv.className = 'message assistant';
assistantDiv.innerHTML = `
<div class="message-content">
<div class="message-avatar">🤖</div>
<div class="message-body">
<div class="message-header">
<span class="message-role">Assistant</span>
</div>
<div class="message-text" id="streamingContent"></div>
</div>
</div>
`;
chatContainer.appendChild(assistantDiv);
const reader = response.body.getReader();
const decoder = new TextDecoder();
while (true) {
const { done, value } = await reader.read();
if (done) break;
const chunk = decoder.decode(value);
const lines = chunk.split('\n');
for (const line of lines) {
if (line.startsWith('data: ')) {
const data = line.slice(6);
if (data === '[DONE]') continue;
try {
const parsed = JSON.parse(data);
const content = parsed.choices?.[0]?.delta?.content || '';
assistantContent += content;
document.getElementById('streamingContent').innerHTML = formatMessage(assistantContent);
scrollToBottom();
} catch (e) {}
}
}
}
} else {
const data = await response.json();
assistantContent = data.choices?.[0]?.message?.content || 'No response';
}
messages.push({
role: 'assistant',
content: assistantContent,
timestamp: new Date().toISOString()
});
updateChat(State.currentChatId, { messages, model });
if (!State.settings.stream) {
renderMessages(messages);
}
updateRegenerateButton(messages);
} catch (error) {
document.getElementById('typingIndicator')?.remove();
if (error.name === 'AbortError') {
showToast('⚠️ Generation stopped', 'warning');
} else {
console.error('API Error:', error);
showToast(`${error.message}`, 'error');
}
} finally {
State.isGenerating = false;
State.abortController = null;
document.getElementById('stopBtn').classList.remove('visible');
document.getElementById('sendBtn').disabled = false;
}
}
function stopGeneration() {
if (State.abortController) {
State.abortController.abort();
State.abortController = null;
}
State.isGenerating = false;
document.getElementById('stopBtn').classList.remove('visible');
document.getElementById('sendBtn').disabled = false;
}

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// ==========================================
// Chat Switchboard - Main Application
// ==========================================
function init() {
console.log('🔀 Chat Switchboard initializing...');
loadSettings();
loadChats();
loadModels();
initializeEventListeners();
updateQuickModelSelector();
renderChatHistory();
console.log('✅ Chat Switchboard ready');
}
function initializeEventListeners() {
// Settings modal
document.getElementById('settingsBtn').addEventListener('click', openSettings);
document.getElementById('configureBtn').addEventListener('click', openSettings);
document.getElementById('closeModalBtn').addEventListener('click', closeSettings);
document.getElementById('cancelBtn').addEventListener('click', closeSettings);
document.getElementById('saveBtn').addEventListener('click', handleSaveSettings);
document.getElementById('fetchModelsBtn').addEventListener('click', () => fetchModels(true));
// Chat controls
document.getElementById('newChatBtn').addEventListener('click', newChat);
document.getElementById('sendBtn').addEventListener('click', sendMessage);
document.getElementById('stopBtn').addEventListener('click', stopGeneration);
document.getElementById('regenerateBtn').addEventListener('click', regenerateResponse);
document.getElementById('toggleSidebarBtn').addEventListener('click', toggleSidebar);
document.getElementById('quickFetchBtn').addEventListener('click', () => fetchModels(false));
// Quick model selector
document.getElementById('quickModel').addEventListener('change', function() {
if (this.value) {
State.settings.model = this.value;
saveSettings();
}
});
// Export dropdown
document.getElementById('exportBtn').addEventListener('click', function(e) {
e.stopPropagation();
document.getElementById('exportDropdown').classList.toggle('show');
});
document.addEventListener('click', function() {
document.getElementById('exportDropdown').classList.remove('show');
});
// Message input
const messageInput = document.getElementById('messageInput');
messageInput.addEventListener('keydown', handleKeyDown);
messageInput.addEventListener('input', function() {
this.style.height = 'auto';
this.style.height = Math.min(this.scrollHeight, 200) + 'px';
});
// Settings modal model sync
document.getElementById('model').addEventListener('change', function() {
if (this.value) document.getElementById('modelCustom').value = '';
});
document.getElementById('modelCustom').addEventListener('input', function() {
if (this.value) document.getElementById('model').value = '';
});
// Close modal on overlay click
document.getElementById('settingsModal').addEventListener('click', function(e) {
if (e.target === this) closeSettings();
});
// Global keyboard shortcuts
document.addEventListener('keydown', function(e) {
if (e.ctrlKey && e.key === ',') {
e.preventDefault();
openSettings();
}
if (e.ctrlKey && e.key === 'b') {
e.preventDefault();
toggleSidebar();
}
if (e.key === 'Escape') {
if (State.isGenerating) {
stopGeneration();
} else if (document.getElementById('settingsModal').classList.contains('active')) {
closeSettings();
}
}
});
}
function handleKeyDown(e) {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault();
sendMessage();
}
}
function handleSaveSettings() {
State.settings.apiEndpoint = document.getElementById('apiEndpoint').value.trim();
State.settings.apiKey = document.getElementById('apiKey').value.trim();
const modelCustom = document.getElementById('modelCustom').value.trim();
const modelSelect = document.getElementById('model').value;
State.settings.model = modelCustom || modelSelect || 'gpt-3.5-turbo';
State.settings.stream = document.getElementById('streamResponse').checked;
State.settings.saveHistory = document.getElementById('saveHistory').checked;
State.settings.showThinking = document.getElementById('showThinking').checked;
State.settings.systemPrompt = document.getElementById('systemPrompt').value.trim();
State.settings.maxTokens = parseInt(document.getElementById('maxTokens').value) || 4096;
State.settings.temperature = parseFloat(document.getElementById('temperature').value) || 0.7;
State.settings.topP = parseFloat(document.getElementById('topP').value) || 1;
State.settings.presencePenalty = parseFloat(document.getElementById('presencePenalty').value) || 0;
saveSettings();
updateQuickModelSelector();
closeSettings();
showToast('✅ Settings saved', 'success');
}
function newChat() {
State.currentChatId = null;
document.getElementById('chatMessages').innerHTML = `
<div class="empty-state">
<div class="empty-state-icon">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path>
</svg>
</div>
<h2>Start a Conversation</h2>
<p>Type a message below to begin</p>
</div>
`;
document.getElementById('regenerateBtn').style.display = 'none';
renderChatHistory();
document.getElementById('messageInput').focus();
}
function loadChat(chatId) {
const chat = getChat(chatId);
if (chat) {
State.currentChatId = chatId;
if (chat.model) {
State.settings.model = chat.model;
updateQuickModelSelector();
}
renderMessages(chat.messages);
renderChatHistory();
updateRegenerateButton(chat.messages);
}
}
function handleDeleteChat(chatId, event) {
event.stopPropagation();
if (confirm('Delete this chat?')) {
deleteChat(chatId);
if (State.currentChatId === chatId) {
newChat();
}
renderChatHistory();
showToast('🗑️ Chat deleted', 'success');
}
}
async function sendMessage() {
const input = document.getElementById('messageInput');
const message = input.value.trim();
if (!message || State.isGenerating) return;
if (!State.settings.apiEndpoint || !State.settings.apiKey) {
showToast('⚠️ Configure API settings first', 'warning');
openSettings();
return;
}
input.value = '';
input.style.height = 'auto';
let messages = [];
if (State.settings.systemPrompt) {
messages.push({ role: 'system', content: State.settings.systemPrompt });
}
if (State.currentChatId) {
const chat = getChat(State.currentChatId);
if (chat) messages = [...chat.messages];
}
messages.push({
role: 'user',
content: message,
timestamp: new Date().toISOString()
});
if (!State.currentChatId) {
const title = message.substring(0, 50) + (message.length > 50 ? '...' : '');
const chat = createChat(title, messages);
State.currentChatId = chat.id;
} else {
updateChat(State.currentChatId, { messages });
}
renderMessages(messages);
renderChatHistory();
await sendApiRequest(messages);
}
async function regenerateResponse() {
if (State.isGenerating || !State.currentChatId) return;
const chat = getChat(State.currentChatId);
if (!chat || chat.messages.length === 0) return;
// Remove last assistant message(s)
while (chat.messages.length > 0 && chat.messages[chat.messages.length - 1].role === 'assistant') {
chat.messages.pop();
}
if (chat.messages.length === 0) return;
updateChat(State.currentChatId, { messages: chat.messages });
renderMessages(chat.messages);
await sendApiRequest(chat.messages);
}
// Initialize on DOM ready
document.addEventListener('DOMContentLoaded', init);

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// ==========================================
// State Management
// ==========================================
const State = {
settings: {
apiEndpoint: '',
apiKey: '',
model: 'gpt-3.5-turbo',
stream: true,
saveHistory: true,
showThinking: true,
systemPrompt: '',
maxTokens: 4096,
temperature: 0.7,
topP: 1,
presencePenalty: 0
},
models: [],
chats: [],
currentChatId: null,
isGenerating: false,
abortController: null
};
function loadSettings() {
const saved = Storage.get('chatSwitchboard_settings');
if (saved) {
State.settings = { ...State.settings, ...saved };
}
}
function saveSettings() {
Storage.set('chatSwitchboard_settings', State.settings);
}
function loadModels() {
State.models = Storage.get('chatSwitchboard_models', []);
}
function saveModels() {
Storage.set('chatSwitchboard_models', State.models);
}
function loadChats() {
State.chats = Storage.get('chatSwitchboard_chats', []);
}
function saveChats() {
if (State.settings.saveHistory) {
Storage.set('chatSwitchboard_chats', State.chats);
}
}
function createChat(title, messages) {
const chat = {
id: Date.now().toString(),
title,
messages,
model: State.settings.model,
createdAt: new Date().toISOString(),
updatedAt: new Date().toISOString()
};
State.chats.unshift(chat);
if (State.chats.length > 100) {
State.chats = State.chats.slice(0, 100);
}
saveChats();
return chat;
}
function updateChat(chatId, updates) {
const chat = State.chats.find(c => c.id === chatId);
if (chat) {
Object.assign(chat, updates, { updatedAt: new Date().toISOString() });
saveChats();
}
}
function deleteChat(chatId) {
State.chats = State.chats.filter(c => c.id !== chatId);
saveChats();
}
function getChat(chatId) {
return State.chats.find(c => c.id === chatId);
}
function getCurrentChat() {
return State.currentChatId ? getChat(State.currentChatId) : null;
}

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// ==========================================
// Storage Utilities
// ==========================================
const Storage = {
get(key, defaultValue = null) {
try {
const item = localStorage.getItem(key);
return item ? JSON.parse(item) : defaultValue;
} catch (e) {
console.error('Storage get error:', e);
return defaultValue;
}
},
set(key, value) {
try {
localStorage.setItem(key, JSON.stringify(value));
return true;
} catch (e) {
console.error('Storage set error:', e);
return false;
}
},
remove(key) {
try {
localStorage.removeItem(key);
return true;
} catch (e) {
console.error('Storage remove error:', e);
return false;
}
},
clear() {
try {
localStorage.clear();
return true;
} catch (e) {
console.error('Storage clear error:', e);
return false;
}
}
};

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// ==========================================
// UI Functions
// ==========================================
function updateSettingsUI() {
document.getElementById('apiEndpoint').value = State.settings.apiEndpoint || '';
document.getElementById('apiKey').value = State.settings.apiKey || '';
const modelSelect = document.getElementById('model');
const modelCustom = document.getElementById('modelCustom');
const savedModel = State.settings.model || 'gpt-3.5-turbo';
populateModelSelect(modelSelect);
const optionExists = Array.from(modelSelect.options).some(opt => opt.value === savedModel);
if (optionExists) {
modelSelect.value = savedModel;
modelCustom.value = '';
} else {
modelSelect.value = '';
modelCustom.value = savedModel;
}
document.getElementById('streamResponse').checked = State.settings.stream;
document.getElementById('saveHistory').checked = State.settings.saveHistory;
document.getElementById('showThinking').checked = State.settings.showThinking;
document.getElementById('systemPrompt').value = State.settings.systemPrompt || '';
document.getElementById('maxTokens').value = State.settings.maxTokens;
document.getElementById('temperature').value = State.settings.temperature;
document.getElementById('topP').value = State.settings.topP;
document.getElementById('presencePenalty').value = State.settings.presencePenalty;
}
function populateModelSelect(selectElement) {
const currentValue = selectElement.value;
selectElement.innerHTML = '<option value="">-- Select a model --</option>';
State.models.forEach(model => {
const option = document.createElement('option');
option.value = model.id;
option.textContent = model.id + (model.owned_by ? ` (${model.owned_by})` : '');
selectElement.appendChild(option);
});
if (currentValue) {
selectElement.value = currentValue;
}
}
function updateQuickModelSelector() {
const quickSelect = document.getElementById('quickModel');
const currentModel = State.settings.model;
quickSelect.innerHTML = '';
if (State.models.length === 0) {
quickSelect.innerHTML = '<option value="">-- Fetch models first --</option>';
if (currentModel) {
const opt = document.createElement('option');
opt.value = currentModel;
opt.textContent = currentModel;
quickSelect.appendChild(opt);
quickSelect.value = currentModel;
}
return;
}
State.models.forEach(model => {
const option = document.createElement('option');
option.value = model.id;
option.textContent = model.id;
quickSelect.appendChild(option);
});
if (currentModel) {
const exists = Array.from(quickSelect.options).some(opt => opt.value === currentModel);
if (exists) {
quickSelect.value = currentModel;
} else {
const opt = document.createElement('option');
opt.value = currentModel;
opt.textContent = currentModel + ' (custom)';
quickSelect.insertBefore(opt, quickSelect.firstChild);
quickSelect.value = currentModel;
}
}
}
function openSettings() {
updateSettingsUI();
document.getElementById('settingsModal').classList.add('active');
}
function closeSettings() {
document.getElementById('settingsModal').classList.remove('active');
}
function toggleSidebar() {
document.getElementById('sidebar').classList.toggle('collapsed');
}
function renderChatHistory() {
const container = document.getElementById('chatHistory');
if (State.chats.length === 0) {
container.innerHTML = '<div style="padding: 1rem; text-align: center; color: var(--text-secondary); font-size: 0.875rem;">No chat history</div>';
return;
}
container.innerHTML = State.chats.map(chat => `
<div class="chat-history-item ${chat.id === State.currentChatId ? 'active' : ''}"
onclick="loadChat('${chat.id}')">
<span class="title">${escapeHtml(chat.title)}</span>
<div class="item-actions">
<button class="item-btn delete" onclick="handleDeleteChat('${chat.id}', event)" title="Delete">
<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<polyline points="3 6 5 6 21 6"></polyline>
<path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
</svg>
</button>
</div>
</div>
`).join('');
}
function renderMessages(messages) {
const container = document.getElementById('chatMessages');
if (!messages || messages.length === 0) {
newChat();
return;
}
container.innerHTML = messages
.filter(m => m.role !== 'system')
.map((msg, idx) => createMessageHTML(msg, idx))
.join('');
scrollToBottom();
}
function createMessageHTML(message, index) {
const isUser = message.role === 'user';
const time = message.timestamp ? new Date(message.timestamp).toLocaleTimeString() : '';
const formattedContent = formatMessage(message.content);
return `
<div class="message ${message.role}" data-index="${index}">
<div class="message-content">
<div class="message-avatar">${isUser ? '👤' : '🤖'}</div>
<div class="message-body">
<div class="message-header">
<span class="message-role">${isUser ? 'You' : 'Assistant'}</span>
<div class="message-actions">
<button class="message-action-btn" onclick="copyMessage(${index})" title="Copy">📋 Copy</button>
</div>
</div>
${time ? `<div class="message-time">${time}</div>` : ''}
<div class="message-text">${formattedContent}</div>
</div>
</div>
</div>
`;
}
function formatMessage(content) {
let formatted = content;
// Extract and format thinking blocks FIRST (before escaping)
if (State.settings.showThinking) {
formatted = formatted.replace(/<thinking>([\s\S]*?)<\/thinking>/gi, (match, thinkingContent) => {
const escapedContent = escapeHtml(thinkingContent.trim());
const blockId = 'thinking-' + Math.random().toString(36).substr(2, 9);
return `__THINKING_BLOCK_${blockId}__${escapedContent}__END_THINKING_BLOCK__`;
});
} else {
// Remove thinking blocks if setting is off
formatted = formatted.replace(/<thinking>[\s\S]*?<\/thinking>/gi, '');
}
// Now escape HTML for the rest
formatted = escapeHtml(formatted);
// Restore thinking blocks with proper HTML
formatted = formatted.replace(/__THINKING_BLOCK_([\w-]+)__([\s\S]*?)__END_THINKING_BLOCK__/g, (match, blockId, content) => {
return `
<div class="thinking-block" id="${blockId}">
<div class="thinking-header" onclick="toggleThinkingBlock('${blockId}')">
<span class="thinking-toggle">▼</span>
<span class="thinking-label">💭 Thinking</span>
</div>
<div class="thinking-content">${content.replace(/\n/g, '<br>')}</div>
</div>
`;
});
// Code blocks with copy button
formatted = formatted.replace(/```(\w*)\n?([\s\S]*?)```/g, (match, lang, code) => {
const codeId = 'code-' + Math.random().toString(36).substr(2, 9);
return `<pre><code id="${codeId}" class="language-${lang}">${code.trim()}</code><button class="copy-code-btn" onclick="copyCode('${codeId}')">Copy</button></pre>`;
});
// Inline code
formatted = formatted.replace(/`([^`]+)`/g, '<code>$1</code>');
// Bold
formatted = formatted.replace(/\*\*([^*]+)\*\*/g, '<strong>$1</strong>');
// Italic
formatted = formatted.replace(/\*([^*]+)\*/g, '<em>$1</em>');
// Line breaks (but not inside pre/code)
formatted = formatted.replace(/\n/g, '<br>');
return formatted;
}
function toggleThinkingBlock(blockId) {
const block = document.getElementById(blockId);
if (block) {
block.classList.toggle('collapsed');
}
}
function escapeHtml(text) {
const div = document.createElement('div');
div.textContent = text;
return div.innerHTML;
}
function scrollToBottom() {
const container = document.getElementById('chatMessages');
container.scrollTop = container.scrollHeight;
}
function updateRegenerateButton(messages) {
const btn = document.getElementById('regenerateBtn');
const hasAssistantMessage = messages && messages.some(m => m.role === 'assistant');
btn.style.display = hasAssistantMessage ? 'flex' : 'none';
}
function showToast(message, type = 'success') {
const container = document.getElementById('toastContainer');
const toast = document.createElement('div');
toast.className = `toast ${type}`;
toast.innerHTML = `
<span>${message}</span>
<button class="toast-close" onclick="this.parentElement.remove()">✕</button>
`;
container.appendChild(toast);
setTimeout(() => toast.remove(), 5000);
}
// Message actions
function copyMessage(index) {
const chat = getCurrentChat();
if (chat && chat.messages[index]) {
navigator.clipboard.writeText(chat.messages[index].content)
.then(() => showToast('📋 Copied to clipboard', 'success'))
.catch(() => showToast('❌ Failed to copy', 'error'));
}
}
function copyCode(codeId) {
const codeElement = document.getElementById(codeId);
if (codeElement) {
navigator.clipboard.writeText(codeElement.textContent)
.then(() => showToast('📋 Code copied', 'success'))
.catch(() => showToast('❌ Failed to copy', 'error'));
}
}
function exportChat(format) {
const chat = getCurrentChat();
if (!chat) {
showToast('⚠️ No chat to export', 'warning');
return;
}
let content, filename, mimeType;
const title = chat.title.replace(/[^a-z0-9]/gi, '_');
switch (format) {
case 'markdown':
content = `# ${chat.title}\n\n` + chat.messages
.filter(m => m.role !== 'system')
.map(m => `## ${m.role === 'user' ? 'You' : 'Assistant'}\n\n${m.content}`)
.join('\n\n---\n\n');
filename = `${title}.md`;
mimeType = 'text/markdown';
break;
case 'json':
content = JSON.stringify(chat, null, 2);
filename = `${title}.json`;
mimeType = 'application/json';
break;
case 'text':
content = chat.messages
.filter(m => m.role !== 'system')
.map(m => `[${m.role === 'user' ? 'You' : 'Assistant'}]\n${m.content}`)
.join('\n\n');
filename = `${title}.txt`;
mimeType = 'text/plain';
break;
}
const blob = new Blob([content], { type: mimeType });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = filename;
a.click();
URL.revokeObjectURL(url);
showToast(`📥 Exported as ${format}`, 'success');
document.getElementById('exportDropdown').classList.remove('show');
}