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Devin Zuczek
42 lines
2.2 KiB
SQL
42 lines
2.2 KiB
SQL
-- Room consumables — the things a room sells.
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--
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-- The other half of a room's economy: `room_currency` (migration 0017) is the money a room
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-- mints and hands out, and this is the shop that takes it back — a Health Potion for 25
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-- tokens, a custom shirt for 500. A row here is the LISTING: its name, its picture, what it
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-- costs and in which of the room's currencies. Written by
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-- `PUT /api/roomconsumables/v1/roomConsumable` and read by
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-- `GET /api/roomconsumables/v1/roomConsumable/room/{roomId}`. Owned by the `econ` worker;
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-- generated from src/room-consumable-db.ts (ROOM_CONSUMABLE_SCHEMA_DDL) — keep in sync.
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--
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-- `room_consumable_id` is a GUID rather than an autoincrement, like a room currency's: it is
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-- how the client names this listing afterwards, and a room's consumables are created
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-- independently of every other room's.
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--
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-- The write body's `PriceAndCurrency` object is COLLAPSED here into `price` and
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-- `purchase_currency_id`. It is one price in one currency, and a nested object would buy
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-- nothing but a JSON blob to query through. Note the client READS them flat, so the write
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-- shape and the read shape genuinely differ — do not unify them.
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--
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-- `purchase_currency_id` points at a `room_currency` and is nullable (`Guid?` in the client's
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-- model), for a listing that names no currency. Nothing resolves or validates it yet: a
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-- consumable priced in a currency that has since been deleted still lists, at a price nobody
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-- can pay. `image_name` is nullable for the same reason — a listing with no picture. `price`
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-- is not: a listing always has one, even if it is zero.
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--
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-- Nothing BUYS a consumable yet. There is no purchase endpoint, so
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-- `maximum_count_per_purchase` is stored and served and read by nothing.
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CREATE TABLE IF NOT EXISTS room_consumable (
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room_consumable_id TEXT PRIMARY KEY,
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room_id INTEGER NOT NULL,
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name TEXT NOT NULL,
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description TEXT NOT NULL,
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image_name TEXT,
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price INTEGER NOT NULL,
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purchase_currency_id TEXT,
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modified_at TEXT NOT NULL,
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maximum_count_per_purchase INTEGER NOT NULL DEFAULT 0
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);
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-- Every read is "this room's shop" — the whole access pattern.
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CREATE INDEX IF NOT EXISTS idx_room_consumable_room ON room_consumable (room_id);
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