<script setup lang="ts">
import {
  onBeforeMount,
  onBeforeUnmount,
  onMounted,
  reactive,
  ref,
  toRaw,
  watch
} from "vue";
import Motion from "./utils/motion";
import { useRouter } from "vue-router";
import { message } from "@/utils/message";
import { loginRules } from "./utils/rule";
import phone from "./components/phone.vue";
import TypeIt from "@/components/ReTypeit";
import qrCode from "./components/qrCode.vue";
import register from "./components/register.vue";
import resetPassword from "./components/resetPassword.vue";
import { useNav } from "@/layout/hooks/useNav";
import type { FormInstance } from "element-plus";
import { operates, thirdParty } from "./utils/enums";
import { useLayout } from "@/layout/hooks/useLayout";
import { rsaEncrypt } from "@/utils/crypt";
import { getTopMenu, initRouter } from "@/router/utils";
import { avatar, bg, illustration } from "./utils/static";
import { useRenderIcon } from "@/components/ReIcon/src/hooks";
import { useDataThemeChange } from "@/layout/hooks/useDataThemeChange";
import {
  getIsRememberMe,
  getPassword,
  removePassword,
  saveIsRememberMe,
  savePassword,
  setTokenFromBackend
} from "@/utils/auth";

import dayIcon from "@/assets/svg/day.svg?component";
import darkIcon from "@/assets/svg/dark.svg?component";
import Lock from "@iconify-icons/ri/lock-fill";
import User from "@iconify-icons/ri/user-3-fill";
import * as CommonAPI from "@/api/common/login";
import { useUserStoreHook } from "@/store/modules/user";
import { useWxStore } from "@/store/modules/wx";

defineOptions({
  name: "Login"
});

// TODO 当请求验证码过于频繁的话  服务器会报错  但是前端没有反应 这块需要处理一下, 通过axios处理一下
const captchaCodeBase64 = ref("");

const isCaptchaOn = ref(false);

const router = useRouter();
const loading = ref(false);
const isRememberMe = ref(false);
const ruleFormRef = ref<FormInstance>();
// 判断登录页面显示哪个组件（0：登录（默认）、1：手机登录、2：二维码登录、3：注册、4：忘记密码）
const currentPage = ref(0);

const wxStore = useWxStore();

const { initStorage } = useLayout();
initStorage();
const { dataTheme, dataThemeChange } = useDataThemeChange();
dataThemeChange();
// const { title, getDropdownItemStyle, getDropdownItemClass } = useNav();
const { title } = useNav();

const urlParams = new URLSearchParams(window.location.search);
console.log('urlParams', urlParams);
const corpid = urlParams.get('corpid') || undefined;
const code = urlParams.get('code') || undefined;
const state = urlParams.get('state') || undefined;
if (code && corpid) {
  wxStore.handleWxCallback({ corpid, code, state })
}

const ruleForm = reactive({
  username: "admin",
  password: getPassword(),
  captchaCode: "",
  captchaCodeKey: "",
  corpid: wxStore.corpid,
  code: wxStore.code,
  state: wxStore.state
});

const onLogin = async (formEl: FormInstance | undefined) => {
  loading.value = true;
  if (!formEl) return;
  if (code && corpid) {
    CommonAPI.loginByPassword({
      username: ruleForm.username,
      password: ruleForm.password ? rsaEncrypt(ruleForm.password) : '',
      captchaCode: ruleForm.captchaCode,
      captchaCodeKey: ruleForm.captchaCodeKey,
      corpid: ruleForm.corpid,
      code: ruleForm.code,
      state: ruleForm.state
    })
      .then(({ data }) => {
        // 登录成功后 将token存储到sessionStorage中
        setTokenFromBackend(data);
        // 获取后端路由
        initRouter().then(() => {
          router.push(getTopMenu(true).path);
          message("登录成功", { type: "success" });
        });
        if (isRememberMe.value) {
          savePassword(ruleForm.password);
        }
      })
      .catch(() => {
        loading.value = false;
        //如果登陆失败则重新获取验证码
        getCaptchaCode();
      });
  } else {
    await formEl.validate((valid, fields) => {
      if (valid) {
        CommonAPI.loginByPassword({
          username: ruleForm.username,
          password: ruleForm.password ? rsaEncrypt(ruleForm.password) : '',
          captchaCode: ruleForm.captchaCode,
          captchaCodeKey: ruleForm.captchaCodeKey,
          corpid: ruleForm.corpid,
          code: ruleForm.code,
          state: ruleForm.state
        })
          .then(({ data }) => {
            // 登录成功后 将token存储到sessionStorage中
            setTokenFromBackend(data);
            // 获取后端路由
            initRouter().then(() => {
              router.push(getTopMenu(true).path);
              message("登录成功", { type: "success" });
            });
            if (isRememberMe.value) {
              savePassword(ruleForm.password);
            }
          })
          .catch(() => {
            loading.value = false;
            //如果登陆失败则重新获取验证码
            getCaptchaCode();
          });
      } else {
        loading.value = false;
        return fields;
      }
    });
  }
};

/** 使用公共函数，避免`removeEventListener`失效 */
function onkeypress({ code }: KeyboardEvent) {
  if (code === "Enter") {
    onLogin(ruleFormRef.value);
  }
}

async function getCaptchaCode() {
  if (isCaptchaOn.value) {
    await CommonAPI.getCaptchaCode().then(res => {
      captchaCodeBase64.value = `data:image/gif;base64,${res.data.captchaCodeImg}`;
      ruleForm.captchaCodeKey = res.data.captchaCodeKey;
    });
  }
}

watch(isRememberMe, newVal => {
  saveIsRememberMe(newVal);
  if (newVal === false) {
    removePassword();
  }
});

onBeforeMount(async () => {
  await CommonAPI.getConfig().then(res => {
    isCaptchaOn.value = res.data.isCaptchaOn;
    useUserStoreHook().SET_DICTIONARY(res.data.dictionary);
  });

  await getCaptchaCode();

  isRememberMe.value = getIsRememberMe();
  if (isRememberMe.value) {
    ruleForm.password = getPassword();
  }
});

onMounted(() => {
  window.document.addEventListener("keypress", onkeypress);
  // 临时登录
  if (wxStore.code && wxStore.corpid) {
    onLogin(ruleFormRef.value);
  }
});

onBeforeUnmount(() => {
  window.document.removeEventListener("keypress", onkeypress);
});
</script>

<template>
  <div class="select-none">
    <img :src="bg" class="wave" />
    <div class="absolute flex-c right-5 top-3">
      <!-- 主题 -->
      <el-switch v-model="dataTheme" :active-icon="dayIcon" :inactive-icon="darkIcon" inline-prompt
        @change="dataThemeChange" />
    </div>
    <div class="login-container">
      <div class="img">
        <!-- 登录页面的背景图 -->
        <component :is="toRaw(illustration)" />
      </div>
      <div class="login-box">
        <div class="login-form">
          <!-- 登录窗口上面的LOGO -->
          <avatar class="avatar" />
          <Motion>
            <h2 class="outline-none">
              <TypeIt :cursor="false" :speed="150" :values="[title]" />
            </h2>
          </Motion>

          <el-form v-if="currentPage === 0" ref="ruleFormRef" :model="ruleForm" :rules="loginRules" size="large">
            <Motion :delay="100">
              <el-form-item :rules="[
                {
                  required: true,
                  message: '请输入账号',
                  trigger: 'blur'
                }
              ]" prop="username">
                <el-input v-model="ruleForm.username" :prefix-icon="useRenderIcon(User)" clearable placeholder="账号" />
              </el-form-item>
            </Motion>

            <Motion :delay="150">
              <el-form-item prop="password">
                <el-input v-model="ruleForm.password" :prefix-icon="useRenderIcon(Lock)" clearable placeholder="密码"
                  show-password />
              </el-form-item>
            </Motion>

            <Motion :delay="200">
              <el-form-item v-if="isCaptchaOn" prop="captchaCode">
                <el-input v-model="ruleForm.captchaCode" :prefix-icon="useRenderIcon('ri:shield-keyhole-line')"
                  clearable placeholder="验证码">
                  <template v-slot:append>
                    <el-image :src="captchaCodeBase64" style="
                        justify-content: center;
                        width: 120px;
                        height: 40px;
                      " @click="getCaptchaCode">
                      <template #error>
                        <span>Loading</span>
                      </template>
                    </el-image>
                  </template>
                </el-input>
              </el-form-item>
            </Motion>

            <Motion :delay="250">
              <el-form-item>
                <div class="w-full h-[20px] flex justify-between items-center">
                  <el-checkbox v-model="isRememberMe"> 记住密码</el-checkbox>
                  <el-button link type="primary" @click="currentPage = 4">
                    忘记密码
                  </el-button>
                </div>
                <el-button :loading="loading" class="w-full mt-4" size="default" type="primary"
                  @click="onLogin(ruleFormRef)">
                  登录
                </el-button>
              </el-form-item>
            </Motion>

            <Motion :delay="300">
              <el-form-item>
                <div class="w-full h-[20px] flex justify-between items-center">
                  <el-button v-for="(item, index) in operates" :key="index" class="w-full mt-4" size="default"
                    @click="currentPage = item.page">
                    {{ item.title }}
                  </el-button>
                </div>
              </el-form-item>
            </Motion>
          </el-form>

          <Motion v-if="currentPage === 0" :delay="350">
            <el-form-item>
              <el-divider>
                <p class="text-xs text-gray-500">{{ "第三方登录" }}</p>
              </el-divider>
              <div class="flex w-full justify-evenly">
                <span v-for="(item, index) in thirdParty" :key="index" :title="item.title">
                  <IconifyIconOnline :icon="`ri:${item.icon}-fill`"
                    class="text-gray-500 cursor-pointer hover:text-blue-400" width="20" />
                </span>
              </div>
            </el-form-item>
          </Motion>
          <!-- 手机号登录 -->
          <phone v-if="currentPage === 1" v-model:current-page="currentPage" />
          <!-- 二维码登录 -->
          <qrCode v-if="currentPage === 2" v-model:current-page="currentPage" />
          <!-- 注册 -->
          <register v-if="currentPage === 3" v-model:current-page="currentPage" />
          <!-- 忘记密码 -->
          <resetPassword v-if="currentPage === 4" v-model:current-page="currentPage" />
        </div>
      </div>
    </div>
  </div>
</template>

<style scoped>
@import url("@/style/login.css");
</style>

<style lang="scss" scoped>
:deep(.el-input-group__append, .el-input-group__prepend) {
  padding: 0;
}

.translation {
  ::v-deep(.el-dropdown-menu__item) {
    padding: 5px 40px;
  }

  .check-zh {
    position: absolute;
    left: 20px;
  }

  .check-en {
    position: absolute;
    left: 20px;
  }
}
</style>