-- V13: Enhanced photo metadata support
-- Add photo-specific fields to media_items table
ALTER TABLE media_items
ADD COLUMN date_taken TIMESTAMPTZ;

ALTER TABLE media_items
ADD COLUMN latitude DOUBLE PRECISION;

ALTER TABLE media_items
ADD COLUMN longitude DOUBLE PRECISION;

ALTER TABLE media_items
ADD COLUMN camera_make TEXT;

ALTER TABLE media_items
ADD COLUMN camera_model TEXT;

ALTER TABLE media_items
ADD COLUMN rating INTEGER CHECK (
  rating >= 0
  AND rating <= 5
);

-- Indexes for photo queries
CREATE INDEX idx_media_date_taken ON media_items (date_taken)
WHERE
  date_taken IS NOT NULL;

CREATE INDEX idx_media_location ON media_items (latitude, longitude)
WHERE
  latitude IS NOT NULL
  AND longitude IS NOT NULL;

CREATE INDEX idx_media_camera ON media_items (camera_make)
WHERE
  camera_make IS NOT NULL;

CREATE INDEX idx_media_rating ON media_items (rating)
WHERE
  rating IS NOT NULL;