Align preview typography with FFmpeg output, add video/song title split, and ship OSS updates.
Separate YouTube video titles from on-video song/artist fields with Pro gating, serve curated fonts and watermark assets for 1:1 preview parity, and include billing/API/docs/deploy stack for self-hosted release. Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Atakan Doğan Özban
co-authored by
Cursor
Cursor
parent
682020ff5a
commit
c8015937f9
+304
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import { Plan } from "@prisma/client";
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import {
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EXTRA_CREDITS_MAX,
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FREE_TOP_UP_CREDITS,
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MAX_CREDIT_CAP,
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monthlyCreditsForPlan,
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} from "./credits";
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import { prisma } from "./db";
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import { getNextMonthlyQuotaReset } from "./plans";
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export class CreditInsufficientError extends Error {
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readonly status = 402;
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constructor(message = "Payment Required: no credits remaining.") {
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super(message);
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this.name = "CreditInsufficientError";
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}
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}
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export type DeductResult = {
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fromMonthly: number;
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fromExtra: number;
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};
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export type RenewalBalances = {
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monthlyCredits: number;
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videosUsed: number;
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extraCredits: number;
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bonusQuota: number;
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trimmed: number;
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totalAfter: number;
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};
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/**
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* Rollover + hard cap on renewal.
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* prospective = unused (monthly remaining + extras) + newMonthly
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* If prospective > MAX_CREDIT_CAP (30), trim excess (no refund).
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*
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* Storage: prefer filling the new monthly allocation first, leftover as extras.
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*/
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export function computeRenewalBalances(input: {
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monthlyCredits: number;
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videosUsed: number;
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bonusQuota?: number;
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extraCredits: number;
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newMonthlyCredits: number;
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maxCap?: number;
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}): RenewalBalances {
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const cap = input.maxCap ?? MAX_CREDIT_CAP;
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const bonus = input.bonusQuota ?? 0;
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const unusedMonthly = Math.max(0, input.monthlyCredits + bonus - input.videosUsed);
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const currentUnused = unusedMonthly + Math.max(0, input.extraCredits);
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const prospective = currentUnused + input.newMonthlyCredits;
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const totalAfter = Math.min(prospective, cap);
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const trimmed = Math.max(0, prospective - totalAfter);
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const monthlyCredits = Math.min(input.newMonthlyCredits, totalAfter);
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const extraCredits = Math.max(0, totalAfter - monthlyCredits);
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return {
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monthlyCredits,
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videosUsed: 0,
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extraCredits,
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bonusQuota: 0,
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trimmed,
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totalAfter,
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};
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}
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/**
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* Apply monthly credit renewal with MAX_CREDIT_CAP rollover trim.
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*/
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export async function applyMonthlyCreditRenewal(
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userId: string,
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opts: {
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plan?: Plan;
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newMonthlyCredits?: number;
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quotaResetAt?: Date;
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} = {},
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) {
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return prisma.$transaction(async (tx) => {
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const user = await tx.user.findUniqueOrThrow({ where: { id: userId } });
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const plan = opts.plan ?? user.plan;
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const newMonthly = opts.newMonthlyCredits ?? monthlyCreditsForPlan(plan);
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const balances = computeRenewalBalances({
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monthlyCredits: user.monthlyCredits,
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videosUsed: user.videosUsed,
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bonusQuota: user.bonusQuota,
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extraCredits: user.extraCredits,
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newMonthlyCredits: newMonthly,
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});
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return tx.user.update({
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where: { id: userId },
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data: {
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plan,
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monthlyCredits: balances.monthlyCredits,
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videosUsed: balances.videosUsed,
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extraCredits: balances.extraCredits,
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bonusQuota: balances.bonusQuota,
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quotaResetAt: opts.quotaResetAt ?? getNextMonthlyQuotaReset(),
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},
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});
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});
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}
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/**
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* Deduct video creation credits for `count` items.
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* Order: monthly allocation first, then extraCredits.
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*/
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export async function deductUserCredit(
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userId: string,
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count = 1,
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): Promise<DeductResult> {
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if (count <= 0) return { fromMonthly: 0, fromExtra: 0 };
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return prisma.$transaction(async (tx) => {
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const rows = await tx.$queryRaw<
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Array<{
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id: string;
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plan: Plan;
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videosUsed: number;
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monthlyCredits: number;
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bonusQuota: number;
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videoCredits: number;
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}>
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>`SELECT id, plan, "videosUsed", "monthlyCredits", "bonusQuota", "videoCredits"
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FROM "User" WHERE id = ${userId} FOR UPDATE`;
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const user = rows[0];
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if (!user) throw new Error("User not found");
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const monthlyLimit = user.monthlyCredits + user.bonusQuota;
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const monthlyRemaining = Math.max(0, monthlyLimit - user.videosUsed);
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const extra = user.videoCredits;
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const total = monthlyRemaining + extra;
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if (total < count) {
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throw new CreditInsufficientError(
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`Not enough credits. Available: ${total} (monthly remaining ${monthlyRemaining} + extras ${extra}).`,
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);
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}
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const fromMonthly = Math.min(count, monthlyRemaining);
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const fromExtra = count - fromMonthly;
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await tx.user.update({
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where: { id: userId },
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data: {
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...(fromMonthly > 0 ? { videosUsed: { increment: fromMonthly } } : {}),
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...(fromExtra > 0 ? { extraCredits: { decrement: fromExtra } } : {}),
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},
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});
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return { fromMonthly, fromExtra };
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});
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}
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/** Refund reserved credits (job create failure / worker failure). */
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export async function refundUserCredit(
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userId: string,
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fromMonthly: number,
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fromExtra: number,
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) {
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if (fromMonthly > 0) {
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await prisma.$executeRaw`
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UPDATE "User"
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SET "videosUsed" = GREATEST(0, "videosUsed" - ${fromMonthly})
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WHERE id = ${userId}
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`;
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}
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if (fromExtra > 0) {
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await prisma.$executeRaw`
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UPDATE "User"
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SET "videoCredits" = LEAST(${EXTRA_CREDITS_MAX}, "videoCredits" + ${fromExtra})
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WHERE id = ${userId}
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`;
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}
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}
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/**
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* Admin / support: reset or adjust a user's billing cycle and extras.
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*/
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export async function adminResetUserCredits(
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userId: string,
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options: {
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plan?: Plan;
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monthlyCredits?: number;
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creditsUsed?: number;
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extraCredits?: number;
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clearFreeTopUp?: boolean;
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} = {},
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) {
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const user = await prisma.user.findUniqueOrThrow({ where: { id: userId } });
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const plan = options.plan ?? user.plan;
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const monthlyCredits =
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options.monthlyCredits ?? monthlyCreditsForPlan(plan);
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const extras =
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options.extraCredits !== undefined
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? Math.max(0, Math.min(EXTRA_CREDITS_MAX, options.extraCredits))
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: user.extraCredits;
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const used = options.creditsUsed ?? 0;
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const remainingMonthly = Math.max(0, monthlyCredits - used);
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const total = remainingMonthly + extras;
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const cappedExtras =
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total > MAX_CREDIT_CAP
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? Math.max(0, MAX_CREDIT_CAP - remainingMonthly)
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: extras;
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return prisma.user.update({
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where: { id: userId },
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data: {
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plan,
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monthlyCredits,
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videosUsed: used,
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extraCredits: cappedExtras,
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...(options.clearFreeTopUp ? { freeTopUpPurchased: false } : {}),
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quotaResetAt: getNextMonthlyQuotaReset(),
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...(plan === "FREE"
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? {
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stripeSubscriptionId: null,
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subscribedAt: null,
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cardLast4: null,
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bonusQuota: 0,
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}
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: {}),
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},
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});
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}
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export async function activateProPlan(
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userId: string,
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opts: {
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stripeCustomerId?: string | null;
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stripeSubscriptionId?: string | null;
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cardLast4?: string | null;
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} = {},
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) {
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await applyMonthlyCreditRenewal(userId, {
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plan: "PREMIUM",
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newMonthlyCredits: monthlyCreditsForPlan("PREMIUM"),
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});
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return prisma.user.update({
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where: { id: userId },
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data: {
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plan: "PREMIUM",
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subscribedAt: new Date(),
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...(opts.stripeCustomerId !== undefined
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? { stripeCustomerId: opts.stripeCustomerId }
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: {}),
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...(opts.stripeSubscriptionId !== undefined
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? { stripeSubscriptionId: opts.stripeSubscriptionId }
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: {}),
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...(opts.cardLast4 !== undefined ? { cardLast4: opts.cardLast4 } : {}),
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},
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});
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}
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export async function downgradeToFreePlan(userId: string) {
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await applyMonthlyCreditRenewal(userId, {
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plan: "FREE",
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newMonthlyCredits: monthlyCreditsForPlan("FREE"),
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});
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return prisma.user.update({
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where: { id: userId },
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data: {
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plan: "FREE",
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stripeSubscriptionId: null,
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subscribedAt: null,
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cardLast4: null,
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apiKeyHash: null,
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apiKeyPrefix: null,
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apiRateLimitBonus: 0,
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},
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});
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}
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export async function grantExtraCredits(userId: string, credits: number) {
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if (credits <= 0) return;
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await prisma.$transaction(async (tx) => {
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const user = await tx.user.findUniqueOrThrow({ where: { id: userId } });
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const monthlyRemaining = Math.max(
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0,
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user.monthlyCredits + user.bonusQuota - user.videosUsed,
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);
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const room = Math.max(0, MAX_CREDIT_CAP - monthlyRemaining - user.extraCredits);
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const grant = Math.min(credits, room);
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if (grant <= 0) return;
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await tx.user.update({
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where: { id: userId },
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data: { extraCredits: { increment: grant } },
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});
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});
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}
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export async function markFreeTopUpPurchased(userId: string) {
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await prisma.user.update({
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where: { id: userId },
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data: { freeTopUpPurchased: true },
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});
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await grantExtraCredits(userId, FREE_TOP_UP_CREDITS);
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}
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