create extension if not exists pgcrypto;

create table if not exists users (
  id uuid primary key default gen_random_uuid(),
  email text not null unique,
  password_hash text not null,
  role text not null default 'user',
  created_at timestamptz not null default now(),
  updated_at timestamptz not null default now()
);

create table if not exists bookmark_folders (
  id uuid primary key default gen_random_uuid(),
  user_id uuid not null references users(id) on delete cascade,
  parent_id uuid null references bookmark_folders(id) on delete cascade,
  name text not null,
  visibility text not null default 'private',
  created_at timestamptz not null default now(),
  updated_at timestamptz not null default now()
);

create index if not exists idx_bookmark_folders_user_parent on bookmark_folders (user_id, parent_id);

create table if not exists bookmarks (
  id uuid primary key default gen_random_uuid(),
  user_id uuid not null references users(id) on delete cascade,
  folder_id uuid null references bookmark_folders(id) on delete set null,
  title text not null,
  url text not null,
  url_normalized text not null,
  url_hash text not null,
  visibility text not null default 'private',
  source text not null default 'manual',
  created_at timestamptz not null default now(),
  updated_at timestamptz not null default now(),
  deleted_at timestamptz null
);

create index if not exists idx_bookmarks_user_updated_at on bookmarks (user_id, updated_at);
create index if not exists idx_bookmarks_user_url_hash on bookmarks (user_id, url_hash);
create index if not exists idx_bookmarks_visibility on bookmarks (visibility);