-- Meshkee CMS — website static image slots (single or list, optional link per image)

CREATE TABLE website_image_slots (
  id                 BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
  business_id        BIGINT NOT NULL,
  slot_key           VARCHAR(100) NOT NULL,
  kind               VARCHAR(20) NOT NULL,
  label              VARCHAR(255) NOT NULL,
  aspect_ratio       VARCHAR(20),
  recommended_width  INTEGER,
  sort_order         INTEGER NOT NULL DEFAULT 0,
  created_at         TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  updated_at         TIMESTAMPTZ NOT NULL DEFAULT NOW(),

  CONSTRAINT website_image_slots_business_id_fkey
    FOREIGN KEY (business_id) REFERENCES businesses (id) ON DELETE CASCADE,
  CONSTRAINT website_image_slots_kind_check
    CHECK (kind IN ('single', 'list')),
  CONSTRAINT website_image_slots_aspect_ratio_check
    CHECK (aspect_ratio IS NULL OR aspect_ratio ~ '^[0-9]{1,3}:[0-9]{1,3}$'),
  CONSTRAINT website_image_slots_recommended_width_check
    CHECK (recommended_width IS NULL OR recommended_width > 0)
);

CREATE UNIQUE INDEX website_image_slots_business_id_slot_key_unique
  ON website_image_slots (business_id, slot_key);

CREATE INDEX idx_website_image_slots_business_id
  ON website_image_slots (business_id);

CREATE TRIGGER website_image_slots_set_updated_at
  BEFORE UPDATE ON website_image_slots
  FOR EACH ROW
  EXECUTE FUNCTION set_updated_at();

CREATE TABLE website_image_slot_items (
  id             BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
  slot_id        BIGINT NOT NULL,
  image_media_id BIGINT NOT NULL,
  title          VARCHAR(255),
  link_url       VARCHAR(2048),
  sort_order     INTEGER NOT NULL DEFAULT 0,
  created_at     TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  updated_at     TIMESTAMPTZ NOT NULL DEFAULT NOW(),

  CONSTRAINT website_image_slot_items_slot_id_fkey
    FOREIGN KEY (slot_id) REFERENCES website_image_slots (id) ON DELETE CASCADE,
  CONSTRAINT website_image_slot_items_image_media_id_fkey
    FOREIGN KEY (image_media_id) REFERENCES media (id) ON DELETE RESTRICT
);

CREATE INDEX idx_website_image_slot_items_slot_id
  ON website_image_slot_items (slot_id);

CREATE INDEX idx_website_image_slot_items_image_media_id
  ON website_image_slot_items (image_media_id);

CREATE TRIGGER website_image_slot_items_set_updated_at
  BEFORE UPDATE ON website_image_slot_items
  FOR EACH ROW
  EXECUTE FUNCTION set_updated_at();

-- First test slot for live sanihome.ir (no-op if that domain is not in this database)
INSERT INTO website_image_slots (
  business_id,
  slot_key,
  kind,
  label,
  aspect_ratio,
  recommended_width,
  sort_order
)
SELECT DISTINCT ON (d.business_id)
  d.business_id,
  'home-hero',
  'list',
  'Home hero',
  '16:9',
  1440,
  0
FROM domains d
WHERE lower(regexp_replace(d.host, '^www\.', '')) = 'sanihome.ir'
ON CONFLICT (business_id, slot_key) DO NOTHING;