import { AddonInput, BaseAddon, IsAddon } from "@certd/lib-server";
import { CaptchaRequest, ICaptchaAddon } from "../api.js";

@IsAddon({
  addonType: "captcha",
  name: "cfTurnstile",
  title: "Cloudflare Turnstile",
  desc: "谨慎使用，国内被墙了",
  showTest: false,
})
export class CfTurnstileCaptcha extends BaseAddon implements ICaptchaAddon {
  @AddonInput({
    title: "站点密钥",
    component: {
      placeholder: "SiteKey",
    },
    helper: "[Cloudflare Turnstile](https://www.cloudflare.com/zh-cn/application-services/products/turnstile/) -> 添加小组件",
    required: true,
  })
  siteKey = "";

  @AddonInput({
    title: "密钥",
    component: {
      placeholder: "SecretKey",
    },
    required: true,
  })
  secretKey = "";

  async onValidate(data?: any, req?: CaptchaRequest) {
    if (!data) {
      return false;
    }
    const { token } = data;
    const { remoteIp } = req;

    const formData = new FormData();
    formData.append("secret", this.secretKey);
    formData.append("response", token);
    formData.append("remoteip", remoteIp);

    const res = await this.http.request({
      url: "https://challenges.cloudflare.com/turnstile/v0/siteverify",
      method: "POST",
      headers: {
        "Content-Type": "multipart/form-data",
      },
      data: formData,
    });

    if (res.success) {
      // Token is valid - process the form
      return true;
    } else {
      // Token is invalid - reject the submission
      const errorMessage = "Cloudflare Turnstile 校验失败:" + res["error-codes"].join(", ");
      this.logger.error(errorMessage);
      throw new Error(errorMessage);
    }
  }

  async getCaptcha(): Promise<any> {
    return {
      siteKey: this.siteKey,
    };
  }
}