-- Migration: adds rag_settings table for per-organization LLM/embedding configuration.
-- Safe to run multiple times (CREATE TABLE IF NOT EXISTS, ADD CONSTRAINT IF NOT EXISTS).

CREATE TABLE IF NOT EXISTS rag_settings (
  organization_id INTEGER PRIMARY KEY,
  provider VARCHAR(50) NOT NULL DEFAULT 'openai',
  api_key TEXT,
  base_url TEXT,
  embedding_model VARCHAR(200) NOT NULL DEFAULT 'text-embedding-3-small',
  updated_at TIMESTAMP DEFAULT NOW()
);
--> statement-breakpoint

DO $$
BEGIN
  IF NOT EXISTS (
    SELECT 1 FROM information_schema.table_constraints
    WHERE constraint_name = 'rag_settings_organization_id_fkey'
      AND table_name = 'rag_settings'
  ) THEN
    ALTER TABLE rag_settings
      ADD CONSTRAINT rag_settings_organization_id_fkey
      FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE;
  END IF;
END $$;
--> statement-breakpoint