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import { Database, eq, and, sql } from "@opencode-ai/console-core/drizzle/index.js"
import { KeyRateLimitTable } from "@opencode-ai/console-core/schema/ip.sql.js"
import { RateLimitError } from "./error"
import { i18n } from "~/i18n"
import { localeFromRequest } from "~/lib/language"
export function createRateLimiter(modelId: string, zenApiKey: string | undefined, request: Request) {
if (!zenApiKey) return
const dict = i18n(localeFromRequest(request))
const LIMIT = 100
const yyyyMMddHHmm = new Date(Date.now())
.toISOString()
.replace(/[^0-9]/g, "")
.substring(0, 12)
const interval = `${modelId.substring(0, 27)}-${yyyyMMddHHmm}`
return {
check: async () => {
const rows = await Database.use((tx) =>
tx
.select({ interval: KeyRateLimitTable.interval, count: KeyRateLimitTable.count })
.from(KeyRateLimitTable)
.where(and(eq(KeyRateLimitTable.key, zenApiKey), eq(KeyRateLimitTable.interval, interval))),
).then((rows) => rows[0])
const count = rows?.count ?? 0
if (count >= LIMIT) throw new RateLimitError(dict["zen.api.error.rateLimitExceeded"], 60)
},
track: async () => {
await Database.use((tx) =>
tx
.insert(KeyRateLimitTable)
.values({ key: zenApiKey, interval, count: 1 })
.onDuplicateKeyUpdate({ set: { count: sql`${KeyRateLimitTable.count} + 1` } }),
)
},
}
}
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