-- Migration: 004 – GDPR consent timestamp + user bookmarks
-- Database: PostgreSQL

ALTER TABLE users ADD COLUMN IF NOT EXISTS gdpr_accepted_at TIMESTAMPTZ;

CREATE TABLE IF NOT EXISTS user_bookmarks (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    content_type VARCHAR(50) NOT NULL,
    content_id VARCHAR(255) NOT NULL,
    content_title VARCHAR(500),
    content_url VARCHAR(500),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    UNIQUE(user_id, content_type, content_id)
);

CREATE INDEX IF NOT EXISTS idx_user_bookmarks_user_id ON user_bookmarks(user_id);