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feat: implement billing account management and cycle synchronization logic with accompanying tests

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This commit is contained in:
Timo Knuth
2026-04-03 22:26:58 +02:00
parent 995e1daf2c
commit 439f5a44c9
2 changed files with 73 additions and 23 deletions
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51
server/lib/billing.js
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@@ -18,6 +18,28 @@ const AVAILABLE_PRODUCTS = ['monthly_pro', 'yearly_pro', 'topup_small', 'topup_m
const nowIso = () => new Date().toISOString();
const asIsoDate = (value) => {
if (value == null || value === '') return null;
if (value instanceof Date) {
return Number.isNaN(value.getTime()) ? null : value.toISOString();
}
if (typeof value === 'number' && Number.isFinite(value)) {
return new Date(value).toISOString();
}
if (typeof value === 'string') {
const trimmed = value.trim();
if (!trimmed) return null;
if (/^\d+$/.test(trimmed)) {
return new Date(Number(trimmed)).toISOString();
}
const parsed = new Date(trimmed);
if (!Number.isNaN(parsed.getTime())) {
return parsed.toISOString();
}
}
return null;
};
const startOfUtcMonth = (date) => {
return new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), 1, 0, 0, 0, 0));
};
@@ -73,17 +95,19 @@ const runInTransaction = async (db, worker) => {
const normalizeAccountRow = (row) => {
if (!row) return null;
const now = new Date();
const { cycleStartedAt: defaultCycleStartedAt, cycleEndsAt: defaultCycleEndsAt } = getCycleBounds(now);
return {
userId: String(row.userId),
plan: row.plan === 'pro' ? 'pro' : 'free',
provider: typeof row.provider === 'string' && row.provider ? row.provider : 'revenuecat',
cycleStartedAt: String(row.cycleStartedAt),
cycleEndsAt: String(row.cycleEndsAt),
cycleStartedAt: asIsoDate(row.cycleStartedAt) || defaultCycleStartedAt.toISOString(),
cycleEndsAt: asIsoDate(row.cycleEndsAt) || defaultCycleEndsAt.toISOString(),
monthlyAllowance: Number(row.monthlyAllowance) || FREE_MONTHLY_CREDITS,
usedThisCycle: Number(row.usedThisCycle) || 0,
topupBalance: Number(row.topupBalance) || 0,
renewsAt: row.renewsAt ? String(row.renewsAt) : null,
updatedAt: row.updatedAt ? String(row.updatedAt) : nowIso(),
renewsAt: asIsoDate(row.renewsAt),
updatedAt: asIsoDate(row.updatedAt) || now.toISOString(),
};
};
@@ -238,25 +262,6 @@ const buildBillingSummary = (account) => {
};
};
const asIsoDate = (value) => {
if (value == null || value === '') return null;
if (typeof value === 'number' && Number.isFinite(value)) {
return new Date(value).toISOString();
}
if (typeof value === 'string') {
const trimmed = value.trim();
if (!trimmed) return null;
if (/^\d+$/.test(trimmed)) {
return new Date(Number(trimmed)).toISOString();
}
const parsed = new Date(trimmed);
if (!Number.isNaN(parsed.getTime())) {
return parsed.toISOString();
}
}
return null;
};
const isSupportedTopupProduct = (productId) => {
return typeof productId === 'string'
&& productId.startsWith('topup_')