CREATE TABLE "course_ai_settings" (
    "id" UUID NOT NULL,
    "course_id" UUID NOT NULL,
    "enabled" BOOLEAN NOT NULL DEFAULT false,
    "provider" TEXT NOT NULL DEFAULT 'OPENAI',
    "model" TEXT NOT NULL,
    "encrypted_api_key" TEXT,
    "created_at" TIMESTAMPTZ(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMPTZ(3) NOT NULL,
    CONSTRAINT "course_ai_settings_pkey" PRIMARY KEY ("id")
);

CREATE UNIQUE INDEX "course_ai_settings_course_id_key" ON "course_ai_settings"("course_id");
CREATE INDEX "course_ai_settings_enabled_idx" ON "course_ai_settings"("enabled");

ALTER TABLE "course_ai_settings"
ADD CONSTRAINT "course_ai_settings_course_id_fkey"
FOREIGN KEY ("course_id") REFERENCES "courses"("id") ON DELETE CASCADE ON UPDATE CASCADE;