// src/workers/ratelimit/ratelimit.worker.ts
var RatelimitOptionKeys = ["key", "limit", "period"], RatelimitPeriodValues = [10, 60];
function validate(test, message) {
  if (!test)
    throw new Error(message);
}
var Ratelimit = class {
  fetcher;
  limitVal;
  period;
  constructor(config) {
    this.fetcher = config.fetcher, this.limitVal = config.limit, this.period = config.period;
  }
  // method that counts and checks against the limit, delegating the actual
  // bucket/epoch bookkeeping to the `RateLimiterObject` Durable Object
  async limit(options) {
    validate(
      typeof options == "object" && options !== null,
      "invalid rate limit options"
    );
    let invalidProps = Object.keys(options ?? {}).filter(
      (key2) => !RatelimitOptionKeys.includes(key2)
    );
    validate(
      invalidProps.length == 0,
      `bad rate limit options: [${invalidProps.join(",")}]`
    );
    let {
      key = "",
      limit = this.limitVal,
      period = this.period
    } = options;
    return validate(typeof key == "string", `invalid key: ${key}`), validate(typeof limit == "number", `limit must be a number: ${limit}`), validate(typeof period == "number", `period must be a number: ${period}`), validate(
      RatelimitPeriodValues.includes(period),
      `unsupported period: ${period}`
    ), await (await this.fetcher.fetch("http://ratelimit/limit", {
      method: "POST",
      body: JSON.stringify({ key, limit, period })
    })).json();
  }
};
function ratelimit_worker_default(env) {
  return new Ratelimit(env);
}
export {
  ratelimit_worker_default as default
};
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