-- nika-gallery: полная схема PostgreSQL 16
-- Создано: ops-agent 2026-08-05

CREATE EXTENSION IF NOT EXISTS "pgcrypto";

-- Пользователи
CREATE TABLE users (
  id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  email       TEXT NOT NULL UNIQUE,
  name        TEXT NOT NULL,
  password    TEXT NOT NULL,
  role        TEXT NOT NULL DEFAULT 'buyer' CHECK (role IN ('owner','admin','buyer','subscriber')),
  telegram_id BIGINT,
  email_verified_at TIMESTAMPTZ,
  refresh_token TEXT,
  created_at  TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at  TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Категории работ
CREATE TABLE categories (
  id         SERIAL PRIMARY KEY,
  name       TEXT NOT NULL,
  slug       TEXT NOT NULL UNIQUE,
  sort_order INT NOT NULL DEFAULT 0
);

-- Работы
CREATE TABLE works (
  id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  title               TEXT NOT NULL,
  slug                TEXT NOT NULL UNIQUE,
  description         TEXT,
  medium              TEXT,          -- техника: масло, акварель...
  dimensions          TEXT,          -- размер: 60x80 см
  year                INT,
  price               NUMERIC(12,2),
  status              TEXT NOT NULL DEFAULT 'draft'
                        CHECK (status IN ('draft','published','sold')),
  auction_mode        TEXT NOT NULL DEFAULT 'none'
                        CHECK (auction_mode IN ('none','primary','secondary')),
  telegram_message_id BIGINT,
  created_by          UUID REFERENCES users(id),
  created_at          TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at          TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Категории работ (M2M)
CREATE TABLE work_categories (
  work_id     UUID REFERENCES works(id) ON DELETE CASCADE,
  category_id INT REFERENCES categories(id) ON DELETE CASCADE,
  PRIMARY KEY (work_id, category_id)
);

-- Медиа
CREATE TABLE media (
  id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  work_id     UUID REFERENCES works(id) ON DELETE CASCADE,
  url         TEXT NOT NULL,
  thumb_url   TEXT,
  type        TEXT NOT NULL DEFAULT 'image' CHECK (type IN ('image','video')),
  sort_order  INT NOT NULL DEFAULT 0,
  created_at  TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Аукционы
CREATE TABLE auctions (
  id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  work_id       UUID REFERENCES works(id) ON DELETE CASCADE,
  type          TEXT NOT NULL CHECK (type IN ('primary','secondary')),
  start_price   NUMERIC(12,2) NOT NULL,
  current_price NUMERIC(12,2) NOT NULL,
  reserve_price NUMERIC(12,2),
  min_step      NUMERIC(12,2) NOT NULL DEFAULT 500,
  start_at      TIMESTAMPTZ NOT NULL,
  end_at        TIMESTAMPTZ NOT NULL,
  status        TEXT NOT NULL DEFAULT 'pending'
                  CHECK (status IN ('pending','active','ended','sold','cancelled')),
  winner_id     UUID REFERENCES users(id),
  created_by    UUID REFERENCES users(id),
  created_at    TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Ставки
CREATE TABLE bids (
  id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  auction_id  UUID REFERENCES auctions(id) ON DELETE CASCADE,
  user_id     UUID REFERENCES users(id),
  amount      NUMERIC(12,2) NOT NULL,
  created_at  TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Подписки
CREATE TABLE subscriptions (
  id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  email         TEXT NOT NULL UNIQUE,
  name          TEXT,
  confirm_token TEXT NOT NULL DEFAULT gen_random_uuid()::text,
  unsub_token   TEXT NOT NULL DEFAULT gen_random_uuid()::text,
  confirmed_at  TIMESTAMPTZ,
  created_at    TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Категории подписки (опционально)
CREATE TABLE subscription_categories (
  subscription_id UUID REFERENCES subscriptions(id) ON DELETE CASCADE,
  category_id     INT REFERENCES categories(id) ON DELETE CASCADE,
  PRIMARY KEY (subscription_id, category_id)
);

-- История рассылок
CREATE TABLE newsletter_sends (
  id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  subject         TEXT NOT NULL,
  body_html       TEXT NOT NULL,
  recipient_count INT NOT NULL DEFAULT 0,
  sent_at         TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Комментарии
CREATE TABLE comments (
  id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  work_id    UUID REFERENCES works(id) ON DELETE CASCADE,
  user_id    UUID REFERENCES users(id),
  body       TEXT NOT NULL,
  status     TEXT NOT NULL DEFAULT 'pending'
               CHECK (status IN ('pending','approved','rejected')),
  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Лайки
CREATE TABLE likes (
  work_id    UUID REFERENCES works(id) ON DELETE CASCADE,
  user_id    UUID REFERENCES users(id) ON DELETE CASCADE,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  PRIMARY KEY (work_id, user_id)
);

-- Отзывы
CREATE TABLE reviews (
  id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  work_id    UUID REFERENCES works(id) ON DELETE CASCADE,
  user_id    UUID REFERENCES users(id) ON DELETE CASCADE,
  rating     SMALLINT NOT NULL CHECK (rating BETWEEN 1 AND 5),
  body       TEXT,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  UNIQUE (work_id, user_id)
);

-- Уведомления владельца
CREATE TABLE notifications (
  id           UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  owner_id     UUID REFERENCES users(id),
  type         TEXT NOT NULL
                 CHECK (type IN ('comment','like','review','bid','sale','new_bid_lost')),
  entity_id    UUID,          -- id комментария / лайка / ставки / аукциона
  preview_text TEXT,          -- «Иван: "Красиво!" (60 символов)»
  admin_url    TEXT,          -- /admin/comments/uuid
  read_at      TIMESTAMPTZ,
  created_at   TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Telegram-синхронизация
CREATE TABLE telegram_sync (
  id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  work_id     UUID REFERENCES works(id) ON DELETE CASCADE,
  channel_id  TEXT NOT NULL,
  message_id  BIGINT NOT NULL,
  direction   TEXT NOT NULL DEFAULT 'push' CHECK (direction IN ('push','pull')),
  synced_at   TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- Индексы
CREATE INDEX idx_works_status     ON works(status);
CREATE INDEX idx_works_slug       ON works(slug);
CREATE INDEX idx_auctions_status  ON auctions(status);
CREATE INDEX idx_auctions_end_at  ON auctions(end_at);
CREATE INDEX idx_bids_auction     ON bids(auction_id, created_at DESC);
CREATE INDEX idx_comments_work    ON comments(work_id, status);
CREATE INDEX idx_notifications    ON notifications(owner_id, read_at, created_at DESC);

-- View: работы с агрегатами
CREATE VIEW works_extended AS
SELECT
  w.*,
  COUNT(DISTINCT l.user_id)   AS likes_count,
  COUNT(DISTINCT c.id)
    FILTER (WHERE c.status='approved') AS comments_count,
  AVG(r.rating)               AS avg_rating,
  COUNT(DISTINCT r.id)        AS reviews_count,
  m.url                       AS cover_url,
  m.thumb_url                 AS cover_thumb
FROM works w
LEFT JOIN likes    l ON l.work_id = w.id
LEFT JOIN comments c ON c.work_id = w.id
LEFT JOIN reviews  r ON r.work_id = w.id
LEFT JOIN LATERAL (
  SELECT url, thumb_url FROM media
  WHERE work_id = w.id ORDER BY sort_order LIMIT 1
) m ON true
GROUP BY w.id, m.url, m.thumb_url;