-- PostgreSQL schema scaffold for dvv tunnel SaaS platform.

create extension if not exists pgcrypto;

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

create table if not exists plans (
  id text primary key,
  name text not null,
  max_tunnels integer not null,
  custom_subdomain boolean not null default false,
  idle_timeout_seconds integer,
  bandwidth_cap_kbps integer,
  priority_routing boolean not null default false,
  created_at timestamptz not null default now()
);

create table if not exists subscriptions (
  id uuid primary key default gen_random_uuid(),
  user_id uuid not null references users(id) on delete cascade,
  plan_id text not null references plans(id),
  provider text not null default 'stripe',
  provider_customer_id text,
  provider_subscription_id text,
  status text not null,
  current_period_end timestamptz,
  created_at timestamptz not null default now(),
  updated_at timestamptz not null default now()
);

create index if not exists subscriptions_user_id_idx on subscriptions(user_id);
create unique index if not exists subscriptions_provider_subscription_id_uidx
  on subscriptions(provider_subscription_id)
  where provider_subscription_id is not null;

create table if not exists tunnels (
  id uuid primary key default gen_random_uuid(),
  user_id uuid not null references users(id) on delete cascade,
  region text not null check (region in ('eu', 'us', 'asia')),
  subdomain text not null,
  custom_domain boolean not null default false,
  active boolean not null default true,
  created_at timestamptz not null default now(),
  updated_at timestamptz not null default now(),
  unique (region, subdomain)
);

create index if not exists tunnels_user_id_idx on tunnels(user_id);

create table if not exists usage_rollups_hourly (
  user_id uuid not null references users(id) on delete cascade,
  hour_bucket timestamptz not null,
  bytes_in bigint not null default 0,
  bytes_out bigint not null default 0,
  player_connections integer not null default 0,
  primary key (user_id, hour_bucket)
);

insert into plans (id, name, max_tunnels, custom_subdomain, idle_timeout_seconds, bandwidth_cap_kbps, priority_routing)
values
  ('free', 'Free', 1, false, 900, 512, false),
  ('pro', 'Pro', 5, true, null, 8192, true),
  ('team', 'Team', 25, true, null, null, true)
on conflict (id) do nothing;