create extension if not exists pgcrypto;

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

create table if not exists identities (
    id uuid primary key default gen_random_uuid(),
    user_id uuid not null references users(id) on delete cascade,
    provider text not null check (provider in ('apple', 'google', 'email')),
    provider_subject text not null,
    email text,
    created_at timestamptz not null default now(),
    unique(provider, provider_subject)
);

create table if not exists premium_entitlements (
    user_id uuid primary key references users(id) on delete cascade,
    source text not null default 'app_store',
    product_id text not null,
    active boolean not null default false,
    expires_at timestamptz,
    updated_at timestamptz not null default now()
);

create index if not exists identities_user_id_idx on identities(user_id);
create index if not exists premium_entitlements_active_idx on premium_entitlements(active);