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import { z } from "zod"
import { fn } from "./util/fn"
import { centsToMicroCents } from "./util/price"
import { getWeekBounds, getMonthlyBounds } from "./util/date"
import { Resource } from "@opencode-ai/console-resource"
export namespace Subscription {
const LimitsSchema = z.object({
free: z.object({
promoTokens: z.number().int(),
dailyRequests: z.number().int(),
}),
lite: z.object({
rollingLimit: z.number().int(),
rollingWindow: z.number().int(),
weeklyLimit: z.number().int(),
monthlyLimit: z.number().int(),
}),
black: z.object({
"20": z.object({
fixedLimit: z.number().int(),
rollingLimit: z.number().int(),
rollingWindow: z.number().int(),
}),
"100": z.object({
fixedLimit: z.number().int(),
rollingLimit: z.number().int(),
rollingWindow: z.number().int(),
}),
"200": z.object({
fixedLimit: z.number().int(),
rollingLimit: z.number().int(),
rollingWindow: z.number().int(),
}),
}),
})
export const validate = fn(LimitsSchema, (input) => {
return input
})
export const getLimits = fn(z.void(), () => {
const json = JSON.parse(Resource.ZEN_LIMITS.value)
return LimitsSchema.parse(json)
})
export const getFreeLimits = fn(z.void(), () => {
return getLimits()["free"]
})
export const analyzeRollingUsage = fn(
z.object({
limit: z.number().int(),
window: z.number().int(),
usage: z.number().int(),
timeUpdated: z.date(),
}),
({ limit, window, usage, timeUpdated }) => {
const now = new Date()
const rollingWindowMs = window * 3600 * 1000
const rollingLimitInMicroCents = centsToMicroCents(limit * 100)
const windowStart = new Date(now.getTime() - rollingWindowMs)
if (timeUpdated < windowStart) {
return {
status: "ok" as const,
resetInSec: window * 3600,
usagePercent: 0,
}
}
const windowEnd = new Date(timeUpdated.getTime() + rollingWindowMs)
if (usage < rollingLimitInMicroCents) {
return {
status: "ok" as const,
resetInSec: Math.ceil((windowEnd.getTime() - now.getTime()) / 1000),
usagePercent: Math.floor(Math.min(100, (usage / rollingLimitInMicroCents) * 100)),
}
}
return {
status: "rate-limited" as const,
resetInSec: Math.ceil((windowEnd.getTime() - now.getTime()) / 1000),
usagePercent: 100,
}
},
)
export const analyzeWeeklyUsage = fn(
z.object({
limit: z.number().int(),
usage: z.number().int(),
timeUpdated: z.date(),
}),
({ limit, usage, timeUpdated }) => {
const now = new Date()
const week = getWeekBounds(now)
const fixedLimitInMicroCents = centsToMicroCents(limit * 100)
if (timeUpdated < week.start) {
return {
status: "ok" as const,
resetInSec: Math.ceil((week.end.getTime() - now.getTime()) / 1000),
usagePercent: 0,
}
}
if (usage < fixedLimitInMicroCents) {
return {
status: "ok" as const,
resetInSec: Math.ceil((week.end.getTime() - now.getTime()) / 1000),
usagePercent: Math.floor(Math.min(100, (usage / fixedLimitInMicroCents) * 100)),
}
}
return {
status: "rate-limited" as const,
resetInSec: Math.ceil((week.end.getTime() - now.getTime()) / 1000),
usagePercent: 100,
}
},
)
export const analyzeMonthlyUsage = fn(
z.object({
limit: z.number().int(),
usage: z.number().int(),
timeUpdated: z.date(),
timeSubscribed: z.date(),
}),
({ limit, usage, timeUpdated, timeSubscribed }) => {
const now = new Date()
const month = getMonthlyBounds(now, timeSubscribed)
const fixedLimitInMicroCents = centsToMicroCents(limit * 100)
if (timeUpdated < month.start) {
return {
status: "ok" as const,
resetInSec: Math.ceil((month.end.getTime() - now.getTime()) / 1000),
usagePercent: 0,
}
}
if (usage < fixedLimitInMicroCents) {
return {
status: "ok" as const,
resetInSec: Math.ceil((month.end.getTime() - now.getTime()) / 1000),
usagePercent: Math.floor(Math.min(100, (usage / fixedLimitInMicroCents) * 100)),
}
}
return {
status: "rate-limited" as const,
resetInSec: Math.ceil((month.end.getTime() - now.getTime()) / 1000),
usagePercent: 100,
}
},
)
}
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