Initial commit

2026-02-03 17:20:06 -05:00
commit 701e387a5b
16 changed files with 3453 additions and 0 deletions
--- a/migrations/001_initial.sql
+++ b/migrations/001_initial.sql
@@ -0,0 +1,125 @@
+-- ==========================================
+-- 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;