import { defineStore } from "pinia";
import { ref } from "vue";
import request from "@/utils/request";
import { useRouter } from "vue-router";
import { startRegistration, startAuthentication } from "@simplewebauthn/browser";
import { useAuthStore } from "./auth";

export const useWebAuthStore = defineStore("webauth", () => {
  const router = useRouter();
  // const token = ref(localStorage.getItem("token") || "");

  const passkeys = ref(null);

  const loading = ref(false);
  const error = ref(null);

  const addPasskey = async () => {
    error.value = "";
    loading.value = true;
    try {
      // 1. 从后端获取注册选项 (Creation Options)
      const res = await request.get("/profile/passkey");
      // console.log("begin:", res.data.data.publicKey);
      const options = res.data.data.publicKey;

      // 调用 Web Authentication API 进行注册
      // const credential = await navigator.credentials.create(options);
      // console.log("credential:", credential);
      let attestation;
      try {
        // Pass 'undefined' as the second argument if you are not using an AbortSignal
        attestation = await startRegistration({optionsJSON: options});
        // console.log("WebAuthn 注册结果 (Attestation):", JSON.stringify(attestation));
        error.value = null;
      } catch (regError) {
        // console.log("WebAuthn 注册失败或取消:", regError);
        if (regError.name === "NotAllowedError") {
          error.value = "Passkey 操作被取消或不允许。";
        } else {
          error.value = `Passkey 创建出错: ${regError.message}`;
        }
        return; // 终止流程
      }

      // 3. 将注册结果 (Attestation) 发送到后端进行验证和保存
      const res2 = await request.post("/profile/passkey", attestation);
      // console.log("end:", res2);
      return res2;
    } catch (err) {
      error.value =err.response?.data?.error || "添加 Passkey 失败，请稍后重试。";
      throw error
    } finally {
      loading.value = false;
    }
  };

  const loginPasskey = async () => {
    error.value = null;
    loading.value = true;
    try {
      // 1. 从后端获取登录选项 (Assertion Options)
      const res = await request.get("/auth/passkey/begin");
      // console.log("login begin:", res.data);
      const options = res.data.data.publicKey;
  
      // 2. 调用 Web Authentication API 进行认证
      let assertion;
      try {
        assertion = await startAuthentication({ optionsJSON: options });
        // console.log("WebAuthn 认证结果 (Assertion):", JSON.stringify(assertion));
      } catch (loginError) {
        if (loginError.name === "NotAllowedError") {
          error.value = "Passkey 登录被取消或不允许。";
        } else {
          error.value = `Passkey 登录出错: ${loginError.message}`;
        }
        throw error;
      }
  
      // 3. 将认证结果 (Assertion) 发送到后端进行验证并获取 Token
      const challenge = options.challenge; // 从 begin 接口返回的 options 中获取 challenge
      const res2 = await request.post(`/auth/passkey/finish?challenge=${challenge}`, assertion);
  
      // 4. 处理登录成功的响应，通常包含 Token
      if (res2.status === 200 && !!res2.data.data?.token) {
        const token = res2.data.data.token
        const authStore = useAuthStore()
        authStore.setToken(token)
        await authStore.getProfile()
        return res2.data
      }
    } catch (err) {
      error.value = err.response?.data?.error || err.value || "Passkey 登录失败，请稍后重试。";
      throw error;
    } finally {
      loading.value = false;
    }
  };

  const getPasskeys = async () => {
    loading.value = true;
    error.value = null;
    try {
      const response = await request.get('/profile/passkeys')
      // console.log('getPasskeys',response.data.data)
      passkeys.value = response.data.data
    } catch (err) {
      error.value = err.response?.data?.error || '获取token列表失败';
      throw error
    }finally {
      loading.value = false;
    }
  }

  const deletePasskey = async (id) => {
    loading.value = true;
    error.value = null;
    try {
      const response = await request.delete(`/profile/passkeys/${id}`)
      return response
    } catch (err) {
      error.value = err.response?.data?.error || `删除passkey ${id} 失败`;
      throw error
    }finally {
      loading.value = false;
    }
  }

  return {
    passkeys,
    loading,
    error,
    addPasskey,
    loginPasskey,
    getPasskeys,
    deletePasskey,
  };
});