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

ALTER TABLE users ADD COLUMN gdpr_accepted_at DATETIME;

CREATE TABLE IF NOT EXISTS user_bookmarks (
    id TEXT PRIMARY KEY DEFAULT (lower(hex(randomblob(4))) || '-' || lower(hex(randomblob(2))) || '-4' || substr(lower(hex(randomblob(2))),2) || '-' || substr('89ab',abs(random()) % 4 + 1, 1) || substr(lower(hex(randomblob(2))),2) || '-' || lower(hex(randomblob(6)))),
    user_id TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    content_type TEXT NOT NULL,
    content_id TEXT NOT NULL,
    content_title TEXT,
    content_url TEXT,
    created_at DATETIME NOT NULL DEFAULT (datetime('now')),
    UNIQUE(user_id, content_type, content_id)
);

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