-- GPS-мониторинг: объекты (транспорт/люди), треки, геозоны, события, группы, подписки.
-- Интеграция с Traccar (forward позиций на /api/gps/ingest) и приём геолокации из PWA.

-- Объекты мониторинга (машины, люди с трекерами)
CREATE TABLE IF NOT EXISTS gps_assets (
  id SERIAL PRIMARY KEY,
  organization_id INTEGER NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  type TEXT NOT NULL DEFAULT 'vehicle',
  user_id INTEGER REFERENCES users(id),
  external_id TEXT,
  color TEXT DEFAULT '#3b82f6',
  is_active BOOLEAN DEFAULT TRUE,
  is_online BOOLEAN DEFAULT FALSE,
  last_lat DOUBLE PRECISION,
  last_lng DOUBLE PRECISION,
  last_speed DOUBLE PRECISION,
  last_course DOUBLE PRECISION,
  last_seen_at TIMESTAMP,
  created_at TIMESTAMP DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS gps_assets_org_idx ON gps_assets(organization_id);
-- IMEI/идентификатор трекера уникален в рамках организации (только для заполненных)
CREATE UNIQUE INDEX IF NOT EXISTS gps_assets_org_external_idx
  ON gps_assets(organization_id, external_id) WHERE external_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS gps_assets_user_idx ON gps_assets(user_id);

-- История позиций (треки)
CREATE TABLE IF NOT EXISTS gps_positions (
  id BIGSERIAL PRIMARY KEY,
  asset_id INTEGER NOT NULL REFERENCES gps_assets(id) ON DELETE CASCADE,
  organization_id INTEGER NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
  lat DOUBLE PRECISION NOT NULL,
  lng DOUBLE PRECISION NOT NULL,
  speed DOUBLE PRECISION,
  course DOUBLE PRECISION,
  accuracy DOUBLE PRECISION,
  recorded_at TIMESTAMP NOT NULL,
  created_at TIMESTAMP DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS gps_positions_asset_recorded_idx ON gps_positions(asset_id, recorded_at);
CREATE INDEX IF NOT EXISTS gps_positions_org_recorded_idx ON gps_positions(organization_id, recorded_at);

-- Геозоны (полигоны)
CREATE TABLE IF NOT EXISTS gps_geozones (
  id SERIAL PRIMARY KEY,
  organization_id INTEGER NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  polygon JSONB NOT NULL,
  color TEXT DEFAULT '#f59e0b',
  notify_enter BOOLEAN DEFAULT TRUE,
  notify_exit BOOLEAN DEFAULT TRUE,
  is_active BOOLEAN DEFAULT TRUE,
  created_at TIMESTAMP DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS gps_geozones_org_idx ON gps_geozones(organization_id);

-- События входа/выхода из геозон
CREATE TABLE IF NOT EXISTS gps_geozone_events (
  id BIGSERIAL PRIMARY KEY,
  organization_id INTEGER NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
  geozone_id INTEGER NOT NULL REFERENCES gps_geozones(id) ON DELETE CASCADE,
  asset_id INTEGER NOT NULL REFERENCES gps_assets(id) ON DELETE CASCADE,
  event TEXT NOT NULL,
  lat DOUBLE PRECISION,
  lng DOUBLE PRECISION,
  created_at TIMESTAMP DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS gps_geozone_events_asset_idx ON gps_geozone_events(asset_id, created_at);
CREATE INDEX IF NOT EXISTS gps_geozone_events_org_idx ON gps_geozone_events(organization_id, created_at);

-- Текущее состояние «объект внутри геозоны» (для детекта входа/выхода)
CREATE TABLE IF NOT EXISTS gps_geozone_states (
  asset_id INTEGER NOT NULL REFERENCES gps_assets(id) ON DELETE CASCADE,
  geozone_id INTEGER NOT NULL REFERENCES gps_geozones(id) ON DELETE CASCADE,
  inside BOOLEAN NOT NULL,
  updated_at TIMESTAMP DEFAULT NOW(),
  PRIMARY KEY (asset_id, geozone_id)
);

-- Группы объектов (для фильтров на карте)
CREATE TABLE IF NOT EXISTS gps_groups (
  id SERIAL PRIMARY KEY,
  organization_id INTEGER NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  created_at TIMESTAMP DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS gps_groups_org_idx ON gps_groups(organization_id);

-- Связь групп и объектов (многие-ко-многим)
CREATE TABLE IF NOT EXISTS gps_group_assets (
  group_id INTEGER NOT NULL REFERENCES gps_groups(id) ON DELETE CASCADE,
  asset_id INTEGER NOT NULL REFERENCES gps_assets(id) ON DELETE CASCADE,
  PRIMARY KEY (group_id, asset_id)
);

-- Подписчики на события объекта (уведомления о входе/выходе/офлайне)
CREATE TABLE IF NOT EXISTS gps_asset_subscribers (
  id SERIAL PRIMARY KEY,
  asset_id INTEGER NOT NULL REFERENCES gps_assets(id) ON DELETE CASCADE,
  user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
  on_enter BOOLEAN DEFAULT TRUE,
  on_exit BOOLEAN DEFAULT TRUE,
  on_offline BOOLEAN DEFAULT FALSE,
  UNIQUE (asset_id, user_id)
);