Changeset 0.6.0 (#36)

2026-02-20 22:24:47 +00:00
parent 30d0c11219
commit 925b70f98c
34 changed files with 2575 additions and 637 deletions
--- a/server/database/migrations/006_channels_unify.sql
+++ b/server/database/migrations/006_channels_unify.sql
@@ -0,0 +1,114 @@
+-- ==========================================
+-- Migration 006: Unify Chats → Channels
+-- ==========================================
+-- "Everything is a channel." Merges the separate chats/channels
+-- schema into a single unified channel model.
+--
+-- The old channels/channel_members/channel_messages tables (from 001)
+-- were never populated — safe to drop and rebuild on top of chats.
+-- ==========================================
+
+-- ── 1. Drop unused legacy channel tables ────
+-- These were placeholders from 001; no data, no handlers.
+-- Order matters: drop dependents first.
+
+-- Remove FK references in tool_usage_log before dropping
+ALTER TABLE tool_usage_log DROP CONSTRAINT IF EXISTS tool_usage_log_channel_id_fkey;
+ALTER TABLE tool_usage_log DROP COLUMN IF EXISTS channel_id;
+
+DROP TABLE IF EXISTS channel_messages CASCADE;
+DROP TABLE IF EXISTS channel_members CASCADE;
+DROP TABLE IF EXISTS channels CASCADE;
+
+-- Drop the old trigger (will re-create after rename)
+DROP TRIGGER IF EXISTS channels_updated_at ON channels;
+
+-- ── 2. Rename chats → channels ──────────────
+
+ALTER TABLE chats RENAME TO channels;
+ALTER TABLE chat_messages RENAME TO messages;
+
+-- Rename columns to match new schema
+ALTER TABLE messages RENAME COLUMN chat_id TO channel_id;
+
+-- Rename indexes
+ALTER INDEX IF EXISTS idx_chats_user RENAME TO idx_channels_user;
+ALTER INDEX IF EXISTS idx_chats_updated RENAME TO idx_channels_updated;
+ALTER INDEX IF EXISTS idx_chats_tags RENAME TO idx_channels_tags;
+ALTER INDEX IF EXISTS idx_chat_messages_chat RENAME TO idx_messages_channel;
+
+-- Rename constraints (PK and FK auto-renamed with table on some PG versions,
+-- but let's be explicit for the FK)
+-- Note: PG auto-renames PKs but not FKs or check constraints
+
+-- Rename the updated_at trigger
+DROP TRIGGER IF EXISTS chats_updated_at ON channels;
+CREATE TRIGGER channels_updated_at BEFORE UPDATE ON channels
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at();
+
+-- ── 3. Add channel type + description ───────
+
+ALTER TABLE channels ADD COLUMN IF NOT EXISTS type VARCHAR(20) DEFAULT 'direct';
+ALTER TABLE channels ADD COLUMN IF NOT EXISTS description TEXT;
+
+COMMENT ON COLUMN channels.type IS 'direct=1:1 AI chat, group=multi-model, channel=named persistent';
+
+-- Backfill: all existing rows are 1:1 AI chats
+UPDATE channels SET type = 'direct' WHERE type IS NULL;
+
+-- Index on type for filtered queries
+CREATE INDEX IF NOT EXISTS idx_channels_type ON channels(type);
+
+-- ── 4. Add message tree (parent_id) ─────────
+
+ALTER TABLE messages ADD COLUMN IF NOT EXISTS parent_id UUID REFERENCES messages(id) ON DELETE SET NULL;
+
+CREATE INDEX IF NOT EXISTS idx_messages_parent ON messages(parent_id);
+
+-- Backfill linear parent chains on existing messages.
+-- Each message's parent is the previous message in the same channel (by created_at).
+WITH ordered AS (
+    SELECT id, channel_id, created_at,
+           LAG(id) OVER (PARTITION BY channel_id ORDER BY created_at) AS prev_id
+    FROM messages
+)
+UPDATE messages m
+SET parent_id = o.prev_id
+FROM ordered o
+WHERE m.id = o.id AND o.prev_id IS NOT NULL AND m.parent_id IS NULL;
+
+-- ── 5. Add participant columns on messages ──
+-- Decouples messages from user-only: AI models are participants too.
+
+ALTER TABLE messages ADD COLUMN IF NOT EXISTS participant_type VARCHAR(10) DEFAULT 'user';
+ALTER TABLE messages ADD COLUMN IF NOT EXISTS participant_id VARCHAR(255);
+
+COMMENT ON COLUMN messages.participant_type IS 'user or model';
+COMMENT ON COLUMN messages.participant_id IS 'user UUID or model identifier string';
+
+-- Backfill: user messages get the channel owner's user_id;
+-- assistant messages get the model name as participant_id.
+UPDATE messages m
+SET participant_type = CASE WHEN m.role = 'assistant' THEN 'model' ELSE 'user' END,
+    participant_id = CASE
+        WHEN m.role = 'assistant' THEN COALESCE(m.model, 'unknown')
+        ELSE (SELECT c.user_id::text FROM channels c WHERE c.id = m.channel_id)
+    END
+WHERE m.participant_id IS NULL;
+
+-- ── 6. Update model_routing_log FK ──────────
+
+-- The FK column was named chat_id — rename it
+ALTER TABLE model_routing_log RENAME COLUMN chat_id TO channel_id;
+ALTER INDEX IF EXISTS idx_routing_log_chat RENAME TO idx_routing_log_channel;
+
+-- message_id FK still valid (messages table was renamed, FK follows)
+
+-- ── 7. Update tool_usage_log ────────────────
+-- We already dropped the old channel_id column above.
+-- Re-add it pointing to the unified channels table.
+-- Also rename the old chat_id column.
+
+ALTER TABLE tool_usage_log RENAME COLUMN chat_id TO channel_id;
+-- The FK auto-follows the table rename, but let's be safe:
+-- (chat_id FK pointed to chats(id), which is now channels(id) — PG handles this)
--- a/server/database/migrations/007_channel_members_models.sql
+++ b/server/database/migrations/007_channel_members_models.sql
@@ -0,0 +1,56 @@
+-- ==========================================
+-- Migration 007: Channel Members & Models
+-- ==========================================
+-- Membership and model assignment tables for
+-- multi-user and multi-model channels.
+-- ==========================================
+
+-- ── Channel Members ─────────────────────────
+-- Who is in this channel (human participants).
+
+CREATE TABLE IF NOT EXISTS channel_members (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    channel_id UUID NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    role VARCHAR(20) DEFAULT 'member',  -- owner, admin, member
+    joined_at TIMESTAMPTZ DEFAULT NOW(),
+    last_read_at TIMESTAMPTZ DEFAULT NOW(),
+    UNIQUE(channel_id, user_id)
+);
+
+CREATE INDEX idx_channel_members_channel ON channel_members(channel_id);
+CREATE INDEX idx_channel_members_user ON channel_members(user_id);
+
+-- Backfill: existing channels are 1:1, so the channel owner is the sole member.
+INSERT INTO channel_members (channel_id, user_id, role)
+SELECT id, user_id, 'owner'
+FROM channels
+WHERE user_id IS NOT NULL
+ON CONFLICT (channel_id, user_id) DO NOTHING;
+
+-- ── Channel Models ──────────────────────────
+-- Which AI models are assigned to this channel.
+-- For direct chats this is one model; for group/channel
+-- there can be multiple with @mention routing.
+
+CREATE TABLE IF NOT EXISTS channel_models (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    channel_id UUID NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
+    model_id VARCHAR(255) NOT NULL,           -- e.g. 'claude-sonnet-4'
+    api_config_id UUID REFERENCES api_configs(id) ON DELETE SET NULL,
+    display_name VARCHAR(100),                 -- optional alias in this channel
+    system_prompt TEXT,                         -- per-model system prompt override
+    settings JSONB DEFAULT '{}'::jsonb,        -- temperature, max_tokens overrides
+    is_default BOOLEAN DEFAULT false,          -- auto-complete (no @mention needed)
+    added_at TIMESTAMPTZ DEFAULT NOW(),
+    UNIQUE(channel_id, model_id)
+);
+
+CREATE INDEX idx_channel_models_channel ON channel_models(channel_id);
+
+-- Backfill: existing channels have a model in the channels.model column.
+INSERT INTO channel_models (channel_id, model_id, api_config_id, is_default)
+SELECT id, model, api_config_id, true
+FROM channels
+WHERE model IS NOT NULL AND model != ''
+ON CONFLICT (channel_id, model_id) DO NOTHING;
--- a/server/database/migrations/008_channel_cursors.sql
+++ b/server/database/migrations/008_channel_cursors.sql
@@ -0,0 +1,29 @@
+-- ==========================================
+-- Migration 008: Channel Cursors
+-- ==========================================
+-- Tracks each user's active branch position
+-- per channel. Essential for conversation forking.
+-- ==========================================
+
+CREATE TABLE IF NOT EXISTS channel_cursors (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    channel_id UUID NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    active_leaf_id UUID REFERENCES messages(id) ON DELETE SET NULL,
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    UNIQUE(channel_id, user_id)
+);
+
+CREATE INDEX idx_channel_cursors_channel ON channel_cursors(channel_id);
+CREATE INDEX idx_channel_cursors_user ON channel_cursors(user_id);
+
+-- Backfill: set cursor to the last message in each channel for the owner.
+INSERT INTO channel_cursors (channel_id, user_id, active_leaf_id)
+SELECT c.id, c.user_id, (
+    SELECT m.id FROM messages m
+    WHERE m.channel_id = c.id
+    ORDER BY m.created_at DESC LIMIT 1
+)
+FROM channels c
+WHERE c.user_id IS NOT NULL
+ON CONFLICT (channel_id, user_id) DO NOTHING;
--- a/server/database/migrations/009_folders_projects.sql
+++ b/server/database/migrations/009_folders_projects.sql
@@ -0,0 +1,57 @@
+-- ==========================================
+-- Migration 009: Folders & Projects
+-- ==========================================
+-- Organizational structures for channels.
+-- Folders are simple containers; projects are
+-- tagged collections that can span folders.
+-- ==========================================
+
+-- ── Folders ─────────────────────────────────
+
+CREATE TABLE IF NOT EXISTS folders (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    name VARCHAR(200) NOT NULL,
+    parent_id UUID REFERENCES folders(id) ON DELETE CASCADE,
+    sort_order INT DEFAULT 0,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    UNIQUE(user_id, name, parent_id)
+);
+
+CREATE INDEX idx_folders_user ON folders(user_id);
+CREATE INDEX idx_folders_parent ON folders(parent_id);
+
+CREATE TRIGGER folders_updated_at BEFORE UPDATE ON folders
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at();
+
+-- Add folder_id to channels (replaces the old text folder column)
+ALTER TABLE channels ADD COLUMN IF NOT EXISTS folder_id UUID REFERENCES folders(id) ON DELETE SET NULL;
+CREATE INDEX IF NOT EXISTS idx_channels_folder ON channels(folder_id);
+
+-- ── Projects ────────────────────────────────
+
+CREATE TABLE IF NOT EXISTS projects (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    name VARCHAR(200) NOT NULL,
+    description TEXT,
+    color VARCHAR(7),   -- hex color for UI badge
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX idx_projects_user ON projects(user_id);
+
+CREATE TRIGGER projects_updated_at BEFORE UPDATE ON projects
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at();
+
+-- Junction: channels can belong to multiple projects
+CREATE TABLE IF NOT EXISTS project_channels (
+    project_id UUID NOT NULL REFERENCES projects(id) ON DELETE CASCADE,
+    channel_id UUID NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
+    added_at TIMESTAMPTZ DEFAULT NOW(),
+    PRIMARY KEY (project_id, channel_id)
+);
+
+CREATE INDEX idx_project_channels_channel ON project_channels(channel_id);
--- a/server/database/migrations/010_banners.sql
+++ b/server/database/migrations/010_banners.sql
@@ -0,0 +1,32 @@
+-- ==========================================
+-- Migration 010: Environment Banners
+-- ==========================================
+-- Environment banners for deployment context
+-- (dev, staging, production, etc). Stored in
+-- global_settings with a dedicated key.
+-- ==========================================
+
+-- Seed default banner config (disabled).
+-- Schema: { enabled, text, position, bg, fg }
+INSERT INTO global_settings (key, value) VALUES
+    ('banner', '{
+        "enabled": false,
+        "text": "",
+        "position": "both",
+        "bg": "#007a33",
+        "fg": "#ffffff"
+    }'::jsonb)
+ON CONFLICT (key) DO NOTHING;
+
+-- Banner presets for quick selection in admin UI.
+-- Generic environment labels — admins can set custom text.
+INSERT INTO global_settings (key, value) VALUES
+    ('banner_presets', '{
+        "development":  { "text": "DEVELOPMENT",  "bg": "#007a33", "fg": "#ffffff" },
+        "testing":      { "text": "TESTING",       "bg": "#502b85", "fg": "#ffffff" },
+        "staging":      { "text": "STAGING",       "bg": "#0033a0", "fg": "#ffffff" },
+        "production":   { "text": "PRODUCTION",    "bg": "#c8102e", "fg": "#ffffff" },
+        "training":     { "text": "TRAINING",      "bg": "#ff8c00", "fg": "#000000" },
+        "demo":         { "text": "DEMO",          "bg": "#fce83a", "fg": "#000000" }
+    }'::jsonb)
+ON CONFLICT (key) DO NOTHING;
--- a/server/database/migrations/011_banner_presets_fix.sql
+++ b/server/database/migrations/011_banner_presets_fix.sql
@@ -0,0 +1,18 @@
+-- ==========================================
+-- Migration 011: Replace banner presets
+-- ==========================================
+-- Replaces legacy presets with
+-- generic environment labels. Existing databases
+-- that ran 010 have the old presets; this overwrites.
+-- ==========================================
+
+UPDATE global_settings
+SET value = '{
+    "development":  { "text": "DEVELOPMENT",  "bg": "#007a33", "fg": "#ffffff" },
+    "testing":      { "text": "TESTING",       "bg": "#502b85", "fg": "#ffffff" },
+    "staging":      { "text": "STAGING",       "bg": "#0033a0", "fg": "#ffffff" },
+    "production":   { "text": "PRODUCTION",    "bg": "#c8102e", "fg": "#ffffff" },
+    "training":     { "text": "TRAINING",      "bg": "#ff8c00", "fg": "#000000" },
+    "demo":         { "text": "DEMO",          "bg": "#fce83a", "fg": "#000000" }
+}'::jsonb
+WHERE key = 'banner_presets';