-- 02_schemas_move.sql: create schemas, snapshot counts, move + rename all 58 public tables.
SET ROLE personal;

CREATE SCHEMA auth;     CREATE SCHEMA money;  CREATE SCHEMA house;  CREATE SCHEMA ref;
CREATE SCHEMA games;    CREATE SCHEMA cs;     CREATE SCHEMA animaldex; CREATE SCHEMA site;
CREATE SCHEMA meta;     CREATE SCHEMA hardware; CREATE SCHEMA energy; CREATE SCHEMA legacy;
COMMENT ON SCHEMA legacy IS 'Pre-reorg list tables + reorg bookkeeping. Drop 30 days after cutover.';
COMMENT ON SCHEMA ref IS 'Seeded third-party catalog data (Pokemon, CoD tracker definitions). Read-only in the GUI; seeders own it.';
COMMENT ON SCHEMA games IS 'Stan''s own game progress.';

-- exact row counts of every public table before anything moves
CREATE TABLE legacy.reorg_counts_before (table_name text PRIMARY KEY, n bigint NOT NULL);
DO $$
DECLARE t text; c bigint;
BEGIN
  FOR t IN SELECT tablename FROM pg_tables WHERE schemaname = 'public' LOOP
    EXECUTE format('SELECT count(*) FROM public.%I', t) INTO c;
    INSERT INTO legacy.reorg_counts_before VALUES (t, c);
  END LOOP;
END $$;

CREATE TABLE legacy.reorg_table_map (
  old_name   text PRIMARY KEY,
  old_prefix text NOT NULL,      -- prefix used by its index/constraint/sequence names
  new_schema text NOT NULL,
  new_name   text NOT NULL,
  UNIQUE (new_schema, new_name)
);
INSERT INTO legacy.reorg_table_map (old_name, old_prefix, new_schema, new_name) VALUES
 ('user','user','auth','user'), ('session','session','auth','session'),
 ('account','account','auth','account'), ('verification','verification','auth','verification'),
 ('money_accounts','money_accounts','money','accounts'), ('money_transactions','money_transactions','money','transactions'),
 ('money_recurring','money_recurring','money','recurring'), ('money_forecasts','money_forecasts','money','forecasts'),
 ('money_insurances','money_insurances','money','insurances'), ('money_wishlist','money_wishlist','money','wishlist'),
 ('money_projection_settings','money_projection_settings','money','projection_settings'),
 ('money_utility_settings','money_utility_settings','money','utility_settings'),
 ('money_utility_readings','money_utility_readings','money','utility_readings'),
 ('house_listings','house_listings','house','listings'), ('house_price_history','house_price_history','house','price_history'),
 ('house_searches','house_searches','house','searches'), ('house_worker_runs','house_worker_runs','house','worker_runs'),
 ('house_alert_rules','house_alert_rules','house','alert_rules'),
 ('pokemon','pokemon','ref','pokemon'), ('games','game','ref','pokemon_games'),
 ('pokemon_game_entries','pokemon_game_entry','ref','pokemon_game_entries'),
 ('pokemon_locations','pokemon_locations','ref','pokemon_locations'), ('pokemon_encounters','pokemon_encounters','ref','pokemon_encounters'),
 ('pokemon_evolutions','pokemon_evolutions','ref','pokemon_evolutions'), ('pokemon_dex_numbers','pokemon_dex_numbers','ref','pokemon_dex_numbers'),
 ('pokemon_moves','pokemon_moves','ref','pokemon_moves'), ('pokemon_learnsets','pokemon_learnsets','ref','pokemon_learnsets'),
 ('pokemon_research','pokemon_research','ref','pokemon_research'), ('pokemon_game_research','pokemon_game_research','ref','pokemon_game_research'),
 ('tracker_games','tracker_games','ref','tracker_games'), ('tracker_items','tracker_items','ref','tracker_items'),
 ('tracker_challenges','tracker_challenges','ref','tracker_challenges'),
 ('user_games','user_game','games','catch_em_all_games'), ('user_entries','user_entry','games','catch_em_all_entries'),
 ('catch_em_all_settings','catch_em_all_settings','games','catch_em_all_settings'),
 ('pokemon_journeys','pokemon_journeys','games','pokemon_journeys'), ('pokemon_seen','pokemon_seen','games','pokemon_seen'),
 ('pokemon_catches','pokemon_catches','games','pokemon_catches'), ('pokemon_milestones','pokemon_milestones','games','pokemon_milestones'),
 ('tracker_progress','tracker_progress','games','tracker_progress'), ('tracker_ranks','tracker_ranks','games','tracker_ranks'),
 ('tracker_weapon_ranks','tracker_weapon_ranks','games','tracker_weapon_ranks'),
 ('tracker_challenge_progress','tracker_challenge_progress','games','tracker_challenge_progress'),
 ('osu_entries','osu_entries','games','osu_entries'),
 ('cs_market_items','cs_market_items','cs','items'), ('cs_price_observations','cs_price_observations','cs','price_observations'),
 ('cs_item_dimensions','cs_item_dimensions','cs','item_dimensions'), ('cs_price_streams','cs_price_streams','cs','price_streams'),
 ('animals','animals','animaldex','animals'), ('sightings','sightings','animaldex','sightings'),
 ('photos','photos','animaldex','sighting_photos'),
 ('blog_articles','blog_articles','site','blog_articles'), ('tasks','tasks','site','tasks'),
 ('topics','topics','site','topics'), ('tasks_to_topics','tasks_to_topics','site','task_topics'),
 ('lists','lists','legacy','lists'), ('list_items','list_items','legacy','list_items'),
 ('list_item_completions','list_item_completions','legacy','list_item_completions');

DO $$
DECLARE
  missing text;
BEGIN
  SELECT string_agg(tablename, ', ') INTO missing FROM pg_tables
   WHERE schemaname = 'public' AND tablename NOT IN (SELECT old_name FROM legacy.reorg_table_map);
  IF missing IS NOT NULL THEN RAISE EXCEPTION 'unmapped public tables: %', missing; END IF;
END $$;

-- types + shared trigger function
ALTER TYPE public.availability SET SCHEMA ref;
ALTER TYPE public.blog_article_status SET SCHEMA site;
ALTER FUNCTION public.site_touch_updated_at() SET SCHEMA meta;
ALTER FUNCTION meta.site_touch_updated_at() RENAME TO touch_updated_at;

-- Duplicate indexes (hand SQL + Drizzle both created one). Keep Drizzle's `_index` / constraint-backed `_key`.
DROP INDEX public.games_source_id_unique;              -- dup of constraint games_source_id_key
DROP INDEX public.pokemon_number_unique;               -- dup of constraint pokemon_number_key
DROP INDEX public.catch_em_all_settings_user_id_unique;-- dup of constraint ..._user_id_key
DROP INDEX public.money_accounts_user_id_idx;
DROP INDEX public.money_forecasts_user_date_idx;
DROP INDEX public.money_insurances_user_id_idx;
DROP INDEX public.money_recurring_user_id_idx;
DROP INDEX public.money_transactions_account_id_idx;
DROP INDEX public.money_transactions_user_date_idx;
DROP INDEX public.money_wishlist_user_id_idx;
DROP INDEX public.lists_slug_unique;                   -- dup of lists_slug_key (legacy table, tidy anyway)

-- Move + rename tables; rename their constraints, indexes and owned sequences to the new prefix.
CREATE FUNCTION pg_temp.reprefix(name text, old_name text, old_prefix text, new_name text) RETURNS text
LANGUAGE sql IMMUTABLE AS $$
  SELECT CASE
    WHEN name LIKE old_name   || '\_%' THEN new_name || substr(name, length(old_name) + 1)
    WHEN name LIKE old_prefix || '\_%' THEN new_name || substr(name, length(old_prefix) + 1)
    ELSE NULL END
$$;

DO $$
DECLARE
  m record; r record; tbl regclass; newn text;
BEGIN
  FOR m IN SELECT * FROM legacy.reorg_table_map ORDER BY old_name LOOP
    EXECUTE format('ALTER TABLE public.%I SET SCHEMA %I', m.old_name, m.new_schema);
    IF m.old_name <> m.new_name THEN
      EXECUTE format('ALTER TABLE %I.%I RENAME TO %I', m.new_schema, m.old_name, m.new_name);
    END IF;
    tbl := format('%I.%I', m.new_schema, m.new_name)::regclass;
    -- constraints (renaming a pk/unique constraint renames its index too)
    FOR r IN SELECT conname AS n FROM pg_constraint WHERE conrelid = tbl LOOP
      newn := pg_temp.reprefix(r.n, m.old_name, m.old_prefix, m.new_name);
      IF newn IS NOT NULL AND newn <> r.n THEN
        EXECUTE format('ALTER TABLE %s RENAME CONSTRAINT %I TO %I', tbl, r.n, newn);
      END IF;
    END LOOP;
    -- remaining plain indexes
    FOR r IN SELECT i.relname AS n FROM pg_index x JOIN pg_class i ON i.oid = x.indexrelid
              WHERE x.indrelid = tbl
                AND NOT EXISTS (SELECT 1 FROM pg_constraint c WHERE c.conindid = x.indexrelid AND c.conrelid = tbl) LOOP
      newn := pg_temp.reprefix(r.n, m.old_name, m.old_prefix, m.new_name);
      IF newn IS NOT NULL AND newn <> r.n THEN
        EXECUTE format('ALTER INDEX %I.%I RENAME TO %I', m.new_schema, r.n, newn);
      END IF;
    END LOOP;
    -- owned sequences
    FOR r IN SELECT s.relname AS n FROM pg_class s JOIN pg_depend d ON d.objid = s.oid AND d.deptype IN ('a','i')
              WHERE s.relkind = 'S' AND d.refobjid = tbl LOOP
      newn := pg_temp.reprefix(r.n, m.old_name, m.old_prefix, m.new_name);
      IF newn IS NOT NULL AND newn <> r.n THEN
        EXECUTE format('ALTER SEQUENCE %I.%I RENAME TO %I', m.new_schema, r.n, newn);
      END IF;
    END LOOP;
  END LOOP;
  IF EXISTS (SELECT 1 FROM pg_tables WHERE schemaname = 'public') THEN
    RAISE EXCEPTION 'public still has tables';
  END IF;
END $$;
RESET ROLE;