-- Game tracker: owned Pokémon locations/encounters/evolutions and checklist games.
-- Additive and repeatable. Apply before seeding (`npm run db:seed`, `npm run db:seed:cod`).

ALTER TYPE availability ADD VALUE IF NOT EXISTS 'evolve';
ALTER TYPE availability ADD VALUE IF NOT EXISTS 'breed';

ALTER TABLE pokemon ADD COLUMN IF NOT EXISTS evolves_from integer;
ALTER TABLE pokemon ADD COLUMN IF NOT EXISTS evolution_chain integer;
ALTER TABLE pokemon ADD COLUMN IF NOT EXISTS is_baby boolean NOT NULL DEFAULT false;
ALTER TABLE pokemon ADD COLUMN IF NOT EXISTS is_legendary boolean NOT NULL DEFAULT false;
ALTER TABLE pokemon ADD COLUMN IF NOT EXISTS is_mythical boolean NOT NULL DEFAULT false;

ALTER TABLE games ADD COLUMN IF NOT EXISTS slug text;
ALTER TABLE games ADD COLUMN IF NOT EXISTS sort_order integer NOT NULL DEFAULT 0;
ALTER TABLE games ADD COLUMN IF NOT EXISTS breeding boolean NOT NULL DEFAULT true;
DO $$ BEGIN
  IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'games_slug_key') THEN
    ALTER TABLE games ADD CONSTRAINT games_slug_key UNIQUE (slug);
  END IF;
END $$;

-- Seeds used to mark their own rows with a "PokéAPI:" note prefix; anything else
-- was hand-maintained and must survive reseeding.
DO $$ BEGIN
  IF NOT EXISTS (SELECT 1 FROM information_schema.columns
                 WHERE table_name = 'pokemon_game_entries' AND column_name = 'source') THEN
    ALTER TABLE pokemon_game_entries ADD COLUMN source text NOT NULL DEFAULT 'pokeapi';
    UPDATE pokemon_game_entries SET source = 'manual' WHERE note IS NULL OR note NOT LIKE 'PokéAPI:%';
  END IF;
END $$;

CREATE TABLE IF NOT EXISTS pokemon_locations (
  id serial PRIMARY KEY,
  source_id integer UNIQUE,
  slug text NOT NULL,
  name text NOT NULL,
  region text,
  description text,
  image_key text,
  image_credit text,
  source text NOT NULL DEFAULT 'pokeapi',
  created_at timestamptz NOT NULL DEFAULT now(),
  updated_at timestamptz NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS pokemon_encounters (
  id serial PRIMARY KEY,
  pokemon_id integer NOT NULL,
  game_id integer NOT NULL,
  location_id integer NOT NULL,
  area text,
  method text NOT NULL,
  min_level integer,
  max_level integer,
  rarity integer,
  form text,
  conditions text[] NOT NULL DEFAULT '{}'::text[],
  note text,
  source text NOT NULL DEFAULT 'pokeapi',
  created_at timestamptz NOT NULL DEFAULT now(),
  updated_at timestamptz NOT NULL DEFAULT now(),
  CONSTRAINT pokemon_encounters_pokemon_id_pokemon_id_fkey FOREIGN KEY (pokemon_id) REFERENCES pokemon(id) ON DELETE CASCADE,
  CONSTRAINT pokemon_encounters_game_id_games_id_fkey FOREIGN KEY (game_id) REFERENCES games(id) ON DELETE CASCADE,
  CONSTRAINT pokemon_encounters_location_id_pokemon_locations_id_fkey FOREIGN KEY (location_id) REFERENCES pokemon_locations(id) ON DELETE CASCADE
);
CREATE INDEX IF NOT EXISTS pokemon_encounters_pokemon_id_game_id_index ON pokemon_encounters (pokemon_id, game_id);
CREATE INDEX IF NOT EXISTS pokemon_encounters_location_id_index ON pokemon_encounters (location_id);

CREATE TABLE IF NOT EXISTS pokemon_evolutions (
  id serial PRIMARY KEY,
  from_pokemon_id integer NOT NULL,
  to_pokemon_id integer NOT NULL,
  game_id integer NOT NULL,
  method text NOT NULL,
  source text NOT NULL DEFAULT 'pokeapi',
  created_at timestamptz NOT NULL DEFAULT now(),
  updated_at timestamptz NOT NULL DEFAULT now(),
  CONSTRAINT pokemon_evolutions_from_pokemon_id_to_pokemon_id_game_id_method_unique UNIQUE (from_pokemon_id, to_pokemon_id, game_id, method),
  CONSTRAINT pokemon_evolutions_from_pokemon_id_pokemon_id_fkey FOREIGN KEY (from_pokemon_id) REFERENCES pokemon(id) ON DELETE CASCADE,
  CONSTRAINT pokemon_evolutions_to_pokemon_id_pokemon_id_fkey FOREIGN KEY (to_pokemon_id) REFERENCES pokemon(id) ON DELETE CASCADE,
  CONSTRAINT pokemon_evolutions_game_id_games_id_fkey FOREIGN KEY (game_id) REFERENCES games(id) ON DELETE CASCADE
);
CREATE INDEX IF NOT EXISTS pokemon_evolutions_game_id_index ON pokemon_evolutions (game_id);

CREATE TABLE IF NOT EXISTS tracker_games (
  id serial PRIMARY KEY,
  slug text NOT NULL UNIQUE,
  franchise text NOT NULL,
  name text NOT NULL,
  short_name text NOT NULL,
  release_year integer,
  sort_order integer NOT NULL DEFAULT 0,
  rules jsonb NOT NULL,
  created_at timestamptz NOT NULL DEFAULT now(),
  updated_at timestamptz NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS tracker_items (
  id serial PRIMARY KEY,
  game_id integer NOT NULL,
  key text NOT NULL,
  kind text NOT NULL,
  category text NOT NULL,
  name text NOT NULL,
  description text,
  icon text,
  post_launch boolean NOT NULL DEFAULT false,
  sort_order integer NOT NULL DEFAULT 0,
  created_at timestamptz NOT NULL DEFAULT now(),
  updated_at timestamptz NOT NULL DEFAULT now(),
  CONSTRAINT tracker_items_game_id_key_unique UNIQUE (game_id, key),
  CONSTRAINT tracker_items_game_id_tracker_games_id_fkey FOREIGN KEY (game_id) REFERENCES tracker_games(id) ON DELETE CASCADE
);
CREATE INDEX IF NOT EXISTS tracker_items_game_id_index ON tracker_items (game_id);

CREATE TABLE IF NOT EXISTS tracker_progress (
  id serial PRIMARY KEY,
  user_id text NOT NULL,
  item_id integer NOT NULL,
  milestone text NOT NULL DEFAULT 'done',
  created_at timestamptz NOT NULL DEFAULT now(),
  updated_at timestamptz NOT NULL DEFAULT now(),
  CONSTRAINT tracker_progress_user_id_item_id_milestone_unique UNIQUE (user_id, item_id, milestone),
  CONSTRAINT tracker_progress_user_id_user_id_fkey FOREIGN KEY (user_id) REFERENCES "user"(id) ON DELETE CASCADE,
  CONSTRAINT tracker_progress_item_id_tracker_items_id_fkey FOREIGN KEY (item_id) REFERENCES tracker_items(id) ON DELETE CASCADE
);
CREATE INDEX IF NOT EXISTS tracker_progress_user_id_index ON tracker_progress (user_id);