[econ] implement catalog

apps/econ/migrations/0015_catalog.sql

@@ -0,0 +1,59 @@
+-- The item catalog: every avatar item and every equipment skin the game knows about.
+--
+-- STRUCTURE ONLY. This migration holds no rows: the catalog's CONTENTS are loaded by
+-- `runx catalog load [--remote]` from apps/econ/static/db/avatar-items.json and
+-- apps/econ/static/db/skins.json.
+--
+-- That split is deliberate. The item list changes as the game's does, and that is not a
+-- schema change -- putting rows here would mean a migration and a deploy per refresh, an
+-- ever-growing pile of near-identical data migrations, and no way to reload without writing
+-- another one. Versioning the structure and reloading the contents on demand also makes a
+-- refresh a readable `git diff` of the JSON rather than of 700KB of generated SQL.
+--
+-- ONE KEY spans both kinds: `item_key` is an avatar item's `AvatarItemDesc` and a skin's
+-- `ModificationGuid`. Neither repeats, the two never collide, and no item has both -- so the
+-- catalog is keyed the same way the INVENTORY is, and resolving what a player owns is a
+-- lookup on this column rather than a join keyed on which kind of thing it turned out to be.
+--
+-- Not every key is a GUID: 191 skins and 109 avatar items carry the short alpha-string ids
+-- the game used before it moved to GUIDs. The column is TEXT and compared as text; do not add
+-- a uuid-shaped constraint, and do not try to parse one.
+--
+-- `avatar_item_id` is carried as DATA ONLY and is deliberately not indexed. It cannot key
+-- anything: it is missing from 22 avatar items (the permanent hair dyes have no id at all)
+-- and repeated on 9 more -- id 9503 alone is shared by five unrelated developer items.
+--
+-- `tooltip` is deliberately nullable, on both kinds: the capture carries NULL and "" as
+-- different values and the client's DTOs serve the difference through. Do not default it.
+--
+-- `Favorited` from skins.json is NOT loaded: it is a player's flag, not a property of the
+-- skin, and the capture recorded one account's. It is projected as false and overwritten
+-- from the player's own `equipment` row -- see src/catalog-db.ts.
+
+CREATE TABLE IF NOT EXISTS catalog (
+	item_key TEXT PRIMARY KEY,
+	kind TEXT NOT NULL,
+	friendly_name TEXT NOT NULL,
+	tooltip TEXT,
+	rarity INTEGER NOT NULL DEFAULT 0,
+	platform_mask INTEGER NOT NULL DEFAULT -1,
+	thumbnail_image TEXT,
+	avatar_item_type INTEGER,
+	avatar_item_id INTEGER,
+	is_base_avatar_item INTEGER,
+	tag_list TEXT,
+	created_at TEXT,
+	prefab_name TEXT,
+	unlocked_level INTEGER
+);
+
+-- The search index. Folded, because a name search is case-insensitive and SQLite's LIKE only
+-- folds ASCII -- which these names are not all of.
+CREATE INDEX IF NOT EXISTS idx_catalog_name ON catalog (kind, lower(friendly_name));
+
+-- Every skin of one prefab, which is how a skin picker is filled.
+CREATE INDEX IF NOT EXISTS idx_catalog_prefab
+	ON catalog (prefab_name) WHERE prefab_name IS NOT NULL;
+
+-- Seasonal rows ('halloween', 'music', ...): a handful of tags over 3000-odd rows.
+CREATE INDEX IF NOT EXISTS idx_catalog_tag ON catalog (tag_list) WHERE tag_list IS NOT NULL;