add game config configuration

apps/econ/src/balance-db.ts

@@ -68,16 +68,26 @@ const SPENDABLE: readonly number[] = [
 export const isSpendable = (currencyType: number): boolean => SPENDABLE.includes(currencyType)
 
 /**
- * What a player starts with, granted lazily the first time their balances are read
+ * The signup grant, in RecCenterTokens, when the `STARTING_TOKENS` var is unset.
+ * An operator overrides it in wrangler.jsonc `vars`; 0 is a valid setting and means
+ * players start broke.
+ */
+export const DEFAULT_STARTING_TOKENS = 10_000
+
+/**
+ * What a player starts with, granted lazily the first time their balances are touched
  * (see `ensureStartingBalances`). Currencies absent here start at 0.
  *
- * This is the whole signup grant — change the number here and it applies to every
- * player who hasn't been granted yet. It is NOT re-granted: a player who spends down
- * to 0 keeps a 0 row, and the grant is skipped because the row exists.
+ * This is the whole signup grant. It is NOT re-granted: a player who spends down to 0
+ * keeps a 0 row, and the grant is skipped because the row exists. That also means
+ * raising `STARTING_TOKENS` later only affects players who haven't been granted yet —
+ * existing players keep the amount they were granted under the old setting.
  */
-export const STARTING_BALANCES: ReadonlyArray<{ currencyType: number; amount: number }> = [
-	{ currencyType: CurrencyType.RecCenterTokens, amount: 10_000 },
-]
+export function startingBalances(
+	startingTokens: number
+): ReadonlyArray<{ currencyType: number; amount: number }> {
+	return [{ currencyType: CurrencyType.RecCenterTokens, amount: startingTokens }]
+}
 
 /**
  * `Platform` in the client's balance DTO. -2 is "all platforms" — we don't track
@@ -108,19 +118,32 @@ export interface Balance {
  *
  * Called on read rather than at account creation so accounts that predate this table
  * (every existing player) get their grant too.
+ *
+ * `startingTokens` is passed in rather than read from a module constant because it's
+ * operator configuration (`STARTING_TOKENS`), and every path that can trigger the grant
+ * has to agree on it — a caller that skipped it would quietly grant the built-in default
+ * to whichever player happened to touch that path first.
  */
-export async function ensureStartingBalances(db: D1Database, accountId: number): Promise<void> {
+export async function ensureStartingBalances(
+	db: D1Database,
+	accountId: number,
+	startingTokens: number
+): Promise<void> {
 	const stmt = db.prepare(
 		'INSERT OR IGNORE INTO balance (account_id, currency_type, amount) VALUES (?1, ?2, ?3)'
 	)
 	await db.batch(
-		STARTING_BALANCES.map((b) => stmt.bind(accountId, b.currencyType, b.amount))
+		startingBalances(startingTokens).map((b) => stmt.bind(accountId, b.currencyType, b.amount))
 	)
 }
 
 /** Every balance an account holds (after its starting grant is applied). */
-export async function getBalances(db: D1Database, accountId: number): Promise<Balance[]> {
-	await ensureStartingBalances(db, accountId)
+export async function getBalances(
+	db: D1Database,
+	accountId: number,
+	startingTokens: number
+): Promise<Balance[]> {
+	await ensureStartingBalances(db, accountId, startingTokens)
 	const { results } = await db
 		.prepare(
 			'SELECT currency_type, amount FROM balance WHERE account_id = ?1 ORDER BY currency_type'
@@ -134,9 +157,10 @@ export async function getBalances(db: D1Database, accountId: number): Promise<Ba
 export async function getBalance(
 	db: D1Database,
 	accountId: number,
-	currencyType: number
+	currencyType: number,
+	startingTokens: number
 ): Promise<number> {
-	await ensureStartingBalances(db, accountId)
+	await ensureStartingBalances(db, accountId, startingTokens)
 	const row = await db
 		.prepare('SELECT amount FROM balance WHERE account_id = ?1 AND currency_type = ?2')
 		.bind(accountId, currencyType)
@@ -155,7 +179,8 @@ export async function creditCurrency(
 	db: D1Database,
 	accountId: number,
 	currencyType: number,
-	amount: number
+	amount: number,
+	startingTokens: number
 ): Promise<number> {
 	if (!Number.isInteger(amount) || amount <= 0) {
 		throw new Error(`creditCurrency: amount must be a positive integer, got ${amount}`)
@@ -167,7 +192,7 @@ export async function creditCurrency(
 		)
 		.bind(accountId, currencyType, amount)
 		.run()
-	return getBalance(db, accountId, currencyType)
+	return getBalance(db, accountId, currencyType, startingTokens)
 }
 
 /**
@@ -182,12 +207,13 @@ export async function spendCurrency(
 	db: D1Database,
 	accountId: number,
 	currencyType: number,
-	amount: number
+	amount: number,
+	startingTokens: number
 ): Promise<boolean> {
 	if (!Number.isInteger(amount) || amount <= 0) {
 		throw new Error(`spendCurrency: amount must be a positive integer, got ${amount}`)
 	}
-	await ensureStartingBalances(db, accountId)
+	await ensureStartingBalances(db, accountId, startingTokens)
 	const { meta } = await db
 		.prepare(
 			`UPDATE balance SET amount = amount - ?3

apps/econ/src/context.ts

@@ -10,6 +10,15 @@ export type Env = SharedHonoEnv & {
 	DB: D1Database
 	/** Static storefront catalogs (`static/storefronts/sf*.json`), fetched by path. */
 	ASSETS: Fetcher
+	/**
+	 * The RecCenterTokens a new player is granted (see balance-db.ts). Optional — unset
+	 * falls back to DEFAULT_STARTING_TOKENS, and 0 means players start broke.
+	 *
+	 * Typed `string | number` because a var declared in wrangler.jsonc `vars` arrives as a
+	 * number while the same var set from the dashboard or `--var` arrives as a string —
+	 * read it through `intVar`, never as a bare number.
+	 */
+	STARTING_TOKENS?: string | number
 }
 
 /** Variables can be extended */

apps/econ/src/econ.app.ts

@@ -1,7 +1,7 @@
 import { Hono } from 'hono'
 import { useWorkersLogger } from 'workers-tagged-logger'
 
-import { withNotFound, withOnError } from '@repo/hono-helpers'
+import { intVar, withNotFound, withOnError } from '@repo/hono-helpers'
 import { validateAndGetAccountId } from '@repo/jwt'
 
 import defaultAvatarItems from '../static/default-avatar-items.json'
@@ -9,7 +9,7 @@ import defaultAvatar from '../static/default-avatar.json'
 import myProgress from '../static/my-progress.json'
 import weeklyChallenge from '../static/weekly-challenge.json'
 import { getAvatar, setAvatar } from './avatar-db'
-import { ALL_PLATFORMS, getBalance, isSpendable } from './balance-db'
+import { ALL_PLATFORMS, DEFAULT_STARTING_TOKENS, getBalance, isSpendable } from './balance-db'
 import { getOutfits, setOutfit } from './outfit-db'
 
 import type { Context } from 'hono'
@@ -220,7 +220,14 @@ const app = new Hono<App>()
 		if (id === null) return unauthorized(c)
 		const currencyType = Number.parseInt(c.req.param('currencyType'), 10)
 		if (Number.isNaN(currencyType)) return c.body(null, 400)
-		const amount = isSpendable(currencyType) ? await getBalance(c.env.DB, id, currencyType) : 0
+		const amount = isSpendable(currencyType)
+			? await getBalance(
+					c.env.DB,
+					id,
+					currencyType,
+					intVar(c.env.STARTING_TOKENS, DEFAULT_STARTING_TOKENS)
+				)
+			: 0
 		return c.json([{ CurrencyType: currencyType, Platform: ALL_PLATFORMS, Balance: amount }])
 	})
 

apps/econ/src/test/integration/api.test.ts

@@ -8,6 +8,7 @@ import { SCHEMA_DDL } from '../../avatar-db'
 import {
 	BALANCE_SCHEMA_DDL,
 	CurrencyType,
+	DEFAULT_STARTING_TOKENS,
 	getBalance,
 	spendCurrency,
 } from '../../balance-db'
@@ -423,7 +424,9 @@ describe('econ endpoints', () => {
 
 	test('GET /api/storefronts/v4/balance/2 reflects what the player has spent', async () => {
 		// Spend from account 7 (a fresh account: the read below grants it first).
-		expect(await spendCurrency(env.DB, 7, CurrencyType.RecCenterTokens, 2500)).toBe(true)
+		expect(
+			await spendCurrency(env.DB, 7, CurrencyType.RecCenterTokens, 2500, DEFAULT_STARTING_TOKENS)
+		).toBe(true)
 		const res = await exports.default.fetch(`${ORIGIN}/api/storefronts/v4/balance/2`, {
 			headers: await bearer('7'),
 		})
@@ -431,15 +434,47 @@ describe('econ endpoints', () => {
 	})
 
 	test('a spend the player cannot afford changes nothing', async () => {
-		const before = await getBalance(env.DB, 8, CurrencyType.RecCenterTokens)
-		expect(await spendCurrency(env.DB, 8, CurrencyType.RecCenterTokens, before + 1)).toBe(false)
-		expect(await getBalance(env.DB, 8, CurrencyType.RecCenterTokens)).toBe(before)
+		const before = await getBalance(
+			env.DB,
+			8,
+			CurrencyType.RecCenterTokens,
+			DEFAULT_STARTING_TOKENS
+		)
+		expect(
+			await spendCurrency(
+				env.DB,
+				8,
+				CurrencyType.RecCenterTokens,
+				before + 1,
+				DEFAULT_STARTING_TOKENS
+			)
+		).toBe(false)
+		expect(await getBalance(env.DB, 8, CurrencyType.RecCenterTokens, DEFAULT_STARTING_TOKENS)).toBe(
+			before
+		)
+	})
+
+	test('the starting grant comes from the STARTING_TOKENS var', async () => {
+		// The grant an operator actually runs is the var; DEFAULT_STARTING_TOKENS is only the
+		// fallback. `env` is shared by every test in this file, so restore it in `finally`.
+		const original = env.STARTING_TOKENS
+		try {
+			env.STARTING_TOKENS = 250
+			const res = await exports.default.fetch(`${ORIGIN}/api/storefronts/v4/balance/2`, {
+				headers: await bearer('11'),
+			})
+			expect(await res.json()).toEqual([{ CurrencyType: 2, Platform: -2, Balance: 250 }])
+		} finally {
+			env.STARTING_TOKENS = original
+		}
 	})
 
 	test('the starting grant is not re-granted after spending down to zero', async () => {
 		// The grant is INSERT OR IGNORE against the row, not a top-up: a player who spends
 		// everything stays at 0 rather than being refilled by their next balance read.
-		expect(await spendCurrency(env.DB, 9, CurrencyType.RecCenterTokens, 10_000)).toBe(true)
+		expect(
+			await spendCurrency(env.DB, 9, CurrencyType.RecCenterTokens, 10_000, DEFAULT_STARTING_TOKENS)
+		).toBe(true)
 		const res = await exports.default.fetch(`${ORIGIN}/api/storefronts/v4/balance/2`, {
 			headers: await bearer('9'),
 		})