-- Create todo_priority enum if not exists
DO $$ BEGIN
  CREATE TYPE todo_priority AS ENUM ('high', 'medium', 'low', 'none');
EXCEPTION WHEN duplicate_object THEN null;
END $$;

-- Create todos table if not exists
CREATE TABLE IF NOT EXISTS todos (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  user_id TEXT NOT NULL,
  title TEXT NOT NULL,
  description TEXT,
  is_completed BOOLEAN NOT NULL DEFAULT false,
  priority todo_priority NOT NULL DEFAULT 'none',
  category TEXT,
  due_date TIMESTAMPTZ,
  completed_at TIMESTAMPTZ,
  sort_order INTEGER NOT NULL DEFAULT 0,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);