<template>
  <div class="register-form">
    <el-form
      :model="form"
      :rules="rules"
      ref="regFormRef"
      label-width="0"
      class="register-form-content"
    >
      <el-form-item prop="realName" required>
        <el-input
          v-model="form.realName"
          :placeholder="$t('register.namePlaceholder')"
          clearable
          size="large"
        >
          <template #prefix>
            <span class="required-asterisk">*</span>
            <img src="/yonghuming.svg" alt="realName" class="input-icon-svg" />
          </template>
        </el-input>
      </el-form-item>

      <el-form-item prop="phoneNumber" required>
        <el-input
          v-model="form.phoneNumber"
          :placeholder="$t('register.phonePlaceholder')"
          clearable
          size="large"
          maxlength="11"
        >
          <template #prefix>
            <span class="required-asterisk">*</span>
            <img src="/shoujihao.svg" alt="phone" class="input-icon-svg" />
          </template>
        </el-input>
      </el-form-item>

      <el-form-item prop="password" required>
        <el-input
          v-model="form.password"
          :placeholder="$t('register.passwordPlaceholder')"
          show-password
          clearable
          size="large"
        >
          <template #prefix>
            <span class="required-asterisk">*</span>
            <img src="/mima.svg" alt="password" class="input-icon-svg" />
          </template>
        </el-input>
      </el-form-item>

      <el-form-item prop="smsCode" required>
        <el-input
          v-model="form.smsCode"
          :placeholder="$t('register.smsCodePlaceholder')"
          clearable
          size="large"
          maxlength="6"
        >
          <template #prefix>
            <span class="required-asterisk">*</span>
            <img src="/anquan.svg" alt="smsCode" class="input-icon-svg" />
          </template>
          <template #suffix>
            <el-button
              :disabled="countdown > 0"
              @click="sendSmsCode"
              type="text"
              class="sms-btn"
            >
              {{
                countdown > 0
                  ? $t("register.smsCodeRetry", { countdown })
                  : $t("register.sendSmsCode")
              }}
            </el-button>
          </template>
        </el-input>
      </el-form-item>

      <el-form-item prop="inviteCode">
        <el-input
          v-model="form.inviteCode"
          :placeholder="$t('register.invitePlaceholder')"
          :disabled="isInviteCodeFromRoute"
          clearable
          size="large"
        >
          <template #prefix>
            <img
              src="/yaoqingma.svg"
              alt="inviteCode"
              class="input-icon-svg invite-icon-aligned"
            />
          </template>
        </el-input>
      </el-form-item>

      <div class="agreement-section">
        <el-checkbox v-model="form.agreeTerms" />
        <div class="agreement-text">
          <span>{{ $t("register.agreeTerms") }}&nbsp;</span>
          <el-link
            type="primary"
            class="agreement-link"
            @click="showAgreementDialog = true"
            >{{ $t("register.userAgreement") }}</el-link
          >&nbsp;<span>{{ $t("register.and") }}</span
          >&nbsp;
          <el-link
            type="primary"
            class="agreement-link"
            @click="showPrivacyDialog = true"
            >{{ $t("register.privacyPolicy") }}</el-link
          >
        </div>
      </div>
      <el-form-item class="submit-section">
        <el-button
          type="primary"
          @click="onSubmit"
          :loading="authStore.loading"
          size="medium"
          class="submit-btn"
        >
          {{ $t("register.createBtn") }}
        </el-button>
      </el-form-item>

      <el-divider>
        {{ $t("register.haveAccount")
        }}<el-link
          type="primary"
          @click="emit('switchToLogin')"
          style="color: #1e6fff"
        >
          {{ $t("register.signIn") }}
        </el-link>
      </el-divider>
    </el-form>

    <!-- 成功弹窗 -->
    <el-dialog
      v-model="showSuccess"
      :title="$t('register.successTitle')"
      width="400px"
      :show-close="false"
      class="success-dialog"
      append-to-body
    >
      <div class="success-content">
        <el-icon class="success-icon" :size="64" color="#67c23a">
          <SuccessFilled />
        </el-icon>
        <p class="success-message">
          注册成功！您的账号 <b>{{ form.phoneNumber }}</b> 已创建完成。
        </p>
      </div>
      <template #footer>
        <el-button type="primary" @click="handleSuccessConfirm">
          确定
        </el-button>
      </template>
    </el-dialog>

    <!-- 用户协议弹窗 -->
    <el-dialog
      v-model="showAgreementDialog"
      :title="$t('register.userServiceAgreement')"
      width="600px"
      class="agreement-dialog"
      append-to-body
      :close-on-click-modal="false"
    >
      <div class="agreement-dialog-content">
        <div
          class="agreement-text-content"
          v-html="formattedAgreementText"
        ></div>
      </div>
      <template #footer>
        <div class="agreement-dialog-footer">
          <el-checkbox v-model="agreementChecked">
            {{ $t("register.readAndAgree")
            }}<el-link type="primary" @click.prevent style="margin: 0 4px"
              >【{{ $t("register.userAgreement") }}】</el-link
            >
          </el-checkbox>
          <el-button type="primary" @click="handleAgreementConfirm">
            {{ $t("register.confirm") }}
          </el-button>
        </div>
      </template>
    </el-dialog>

    <!-- 隐私政策弹窗 -->
    <el-dialog
      v-model="showPrivacyDialog"
      :title="$t('register.privacyPolicy')"
      width="600px"
      class="agreement-dialog"
      append-to-body
      :close-on-click-modal="false"
    >
      <div class="agreement-dialog-content">
        <div class="agreement-text-content" v-html="formattedPrivacyText"></div>
      </div>
      <template #footer>
        <div class="agreement-dialog-footer">
          <el-checkbox v-model="privacyChecked">
            {{ $t("register.readAndAgree")
            }}<el-link type="primary" @click.prevent style="margin: 0 4px"
              >【{{ $t("register.privacyPolicy") }}】</el-link
            >
          </el-checkbox>
          <el-button type="primary" @click="handlePrivacyConfirm">
            {{ $t("register.confirm") }}
          </el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, computed, onMounted, watch } from "vue";
import { useI18n } from "vue-i18n";
import { ElMessage, type FormInstance, type FormRules } from "element-plus";
import { SuccessFilled } from "@element-plus/icons-vue";
import { useAuthStore } from "@/stores/auth";
import { useRouter, useRoute } from "vue-router";
import {
  apiSendRegisterSms,
  apiRegisterByPhone,
  apiLoginByPhonePassword,
} from "@/api/user";

const { t } = useI18n();
const authStore = useAuthStore();
const router = useRouter();
const route = useRoute();

const emit = defineEmits<{
  (e: "switchToLogin"): void;
}>();

const regFormRef = ref<FormInstance>();
const showSuccess = ref(false);
const showAgreementDialog = ref(false);
const agreementChecked = ref(false);
const showPrivacyDialog = ref(false);
const privacyChecked = ref(false);
const countdown = ref(0);
const isInviteCodeFromRoute = ref(false);
let timer: NodeJS.Timeout | null = null;

// 协议内容（与邮箱注册相同）
const agreementContent = `
更新日期:2025年11月28日  
1. 导言
欢迎您使用北京连心医疗科技有限公司（以下简称"连心医疗"或"我们"）提供的"领医智能体"服务（以下简称"本服务"）。
本服务是一款基于人工智能技术的医疗健康信息辅助平台，旨在通过互动问答、报告解读等形式，为您提供信息参考和辅助工具。本《用户服务协议》（以下简称"本协议"）是您与连心医疗之间就注册、登录、使用本服务所订立的具有法律效力的协议。
在您开始使用本服务之前，请您（以下简称"用户"或"您"）务必审慎阅读、充分理解本协议各条款内容，特别是以加粗、下划线等形式显示的关于免除或限制责任、医疗风险、法律适用和争议解决的条款。如果您不同意本协议的任何内容，或者无法准确理解该等条款的含义，请不要进行后续操作，并应立即停止访问或使用本服务。您的注册、登录、使用等行为即视为您已阅读、理解并完全接受本协议的全部内容，并同意接受其约束。
`;

const privacyContent = `
更新日期：2025年11月28日  
北京连心医疗科技有限公司（以下简称"我们""连心医疗"或"LinkMed"）作为https://linkmed.cc/ 网站（以下简称"本网站"）的运营者，深知医疗健康领域个人信息及敏感数据对您的重要性。本隐私政策专为本网站定制，将详细说明我们在您使用本网站账号注册、登录及关联医疗服务过程中，如何收集、使用、存储、保护您的个人信息，以及您享有的信息管理权利。请您在访问、使用本网站前仔细阅读并理解本政策，您使用本网站即视为同意我们按照本政策处理您的个人信息。
`;

// 格式化协议文本
const formattedAgreementText = computed(() => {
  return agreementContent
    .split("\n")
    .map((line) => {
      if (!line.trim()) return "<br>";
      if (/^\d+\./.test(line.trim())) {
        return `<p style="font-weight: bold; margin: 12px 0 8px 0;">${line}</p>`;
      }
      return `<p style="margin: 6px 0; line-height: 1.6;">${line}</p>`;
    })
    .join("");
});

const formattedPrivacyText = computed(() => {
  return privacyContent
    .split("\n")
    .map((line) => {
      if (!line.trim()) return "<br>";
      return `<p style="margin: 6px 0; line-height: 1.6;">${line}</p>`;
    })
    .join("");
});

const form = reactive({
  realName: "",
  phoneNumber: "",
  password: "",
  smsCode: "",
  inviteCode: "",
  agreeTerms: false,
});

// 监听 form.agreeTerms 的变化
watch(
  () => form.agreeTerms,
  (newValue) => {
    agreementChecked.value = newValue;
    privacyChecked.value = newValue;
  },
);

const rules = computed<FormRules>(() => ({
  realName: [
    { required: true, message: "请输入真实姓名", trigger: "blur" },
    { min: 2, message: "姓名长度至少2位", trigger: "blur" },
  ],
  phoneNumber: [
    { required: true, message: "请输入手机号", trigger: "blur" },
    {
      validator: (_rule: any, value: string, callback: any) => {
        const phoneRegex = /^1[3-9]\d{9}$/;
        if (value && !phoneRegex.test(value)) {
          callback(new Error("手机号格式不正确"));
        } else {
          callback();
        }
      },
      trigger: ["blur", "change"],
    },
  ],
  password: [
    { required: true, message: "请输入密码", trigger: "blur" },
    { min: 6, max: 20, message: "密码长度至少6位，最多20位", trigger: "blur" },
  ],
  smsCode: [
    { required: true, message: "请输入验证码", trigger: "blur" },
    { len: 6, message: "验证码为6位数字", trigger: "blur" },
  ],
}));

// 发送短信验证码
const sendSmsCode = async () => {
  // 验证手机号
  if (!form.phoneNumber) {
    ElMessage.warning("请先输入手机号");
    return;
  }
  const phoneRegex = /^1[3-9]\d{9}$/;
  if (!phoneRegex.test(form.phoneNumber)) {
    ElMessage.warning("手机号格式不正确");
    return;
  }

  try {
    await apiSendRegisterSms(form.phoneNumber);
    ElMessage.success("验证码已发送，请查收短信");

    // 开始倒计时
    countdown.value = 60;
    timer = setInterval(() => {
      countdown.value--;
      if (countdown.value <= 0) {
        if (timer) clearInterval(timer);
      }
    }, 1000);
  } catch (error: any) {
    ElMessage.error(error?.response?.data?.message || "发送验证码失败");
  }
};

// 处理协议确认
const handleAgreementConfirm = () => {
  if (agreementChecked.value) {
    form.agreeTerms = true;
    showAgreementDialog.value = false;
  } else {
    ElMessage.warning(t("register.pleaseReadAndAgreeAgreement"));
  }
};

const handlePrivacyConfirm = () => {
  if (privacyChecked.value) {
    form.agreeTerms = true;
    showPrivacyDialog.value = false;
  } else {
    ElMessage.warning(t("register.pleaseReadAndAgreePrivacy"));
  }
};

const handleSuccessConfirm = () => {
  showSuccess.value = false;
  emit("switchToLogin");
};

// 提交注册
const onSubmit = async () => {
  // 表单校验：校验不通过则不发送接口请求
  if (!regFormRef.value) {
    return;
  }

  try {
    // 执行表单校验
    await regFormRef.value.validate();
  } catch (error: any) {
    // 校验失败，提取第一个错误信息并提示用户
    let errorMessage = "请检查表单输入";

    if (error && typeof error === "object" && error.fields) {
      // Element Plus 校验失败时，error.fields 包含所有字段的错误信息
      const fields = error.fields;
      const fieldKeys = Object.keys(fields);

      // 获取第一个有错误的字段
      for (const fieldKey of fieldKeys) {
        const fieldErrors = fields[fieldKey];
        if (Array.isArray(fieldErrors) && fieldErrors.length > 0) {
          const firstError = fieldErrors[0];
          if (firstError && firstError.message) {
            errorMessage = firstError.message;
            break;
          }
        }
      }
    }

    ElMessage.error(errorMessage);
    // 校验失败，直接返回，不发送请求
    return;
  }

  // 检查是否同意协议
  if (!form.agreeTerms) {
    ElMessage.error("请阅读并同意用户协议和隐私政策");
    return;
  }

  // 所有校验通过后，才发送注册请求
  try {
    // 1. 先注册
    const registerResult = await apiRegisterByPhone({
      realName: form.realName,
      phoneNumber: form.phoneNumber,
      password: form.password,
      smsCode: form.smsCode,
      inviteCode: form.inviteCode || undefined,
    });

    if (!registerResult.data) {
      ElMessage.error("注册失败");
      return;
    }

    // 2. 注册成功后自动登录
    try {
      const loginResult = await apiLoginByPhonePassword({
        phoneNumber: form.phoneNumber,
        password: form.password,
        remember: false,
      });

      const authToken = loginResult.data?.token;
      if (!authToken) {
        throw new Error("登录失败：未获取到 token");
      }

      // 使用 loginWithToken 方法处理登录
      const loginSuccess = await authStore.loginWithToken(authToken);

      if (loginSuccess.success) {
        ElMessage.success(t("register.successTitle") || "注册成功");
        // 跳转到欢迎页，并触发烟花特效
        router.push("/app/welcome?registerSuccess=true&showReward=true");
      } else {
        ElMessage.warning("注册成功，但自动登录失败，请手动登录");
        emit("switchToLogin");
      }
    } catch (loginError: any) {
      console.error("自动登录处理错误:", loginError);
      ElMessage.warning(
        loginError?.response?.data?.message ||
          "注册成功，但自动登录失败，请手动登录",
      );
      // 注册成功但登录失败，显示成功弹窗让用户手动登录
      showSuccess.value = true;
    }
  } catch (error: any) {
    console.error("注册处理错误:", error);
    ElMessage.error(error?.response?.data?.message || "注册失败");
  }
};

// 清理定时器
onMounted(() => {
  // 从路由查询参数中获取邀请码
  const refCode = route.query.ref as string;
  if (refCode) {
    form.inviteCode = refCode;
    isInviteCodeFromRoute.value = true;
  }

  // 组件卸载时清理定时器
  return () => {
    if (timer) clearInterval(timer);
  };
});
</script>

<style scoped lang="scss">
.register-form {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  padding: 0;

  :deep(.el-input__prefix) {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;

    .required-asterisk {
      color: #f56c6c;
      font-size: 14px;
      font-weight: bold;
      margin-left: 10px;
      margin-right: 2px;
      line-height: 1;
    }

    .input-icon-svg {
      margin-right: 6px;
      display: block;
    }

    .invite-icon-aligned {
      margin-left: 18px;
    }
  }
  :deep(.el-input--large .el-input__wrapper) {
    padding: 2px 15px 2px 2px !important;
  }

  :deep(.el-input.is-focus .el-input__prefix .input-icon-svg) {
    opacity: 1;
  }
}

.register-form-content {
  background: transparent;
  border-radius: 16px;
  padding: 0;
}

.el-form-item {
  margin-bottom: 20px;
}

.el-input {
  border-radius: 12px;

  :deep(.el-input__inner) {
    height: 38px;
    font-size: 16px;
    border-radius: 12px;
    background: #ffffff !important;
    color: #606266 !important;
    transition: all 0.3s ease;

    &::placeholder {
      color: #c0c4cc;
      font-size: 16px;
    }
  }

  :deep(.el-input__suffix) {
    color: #909399;
  }
}

.input-icon-svg {
  width: 18px;
  height: 18px;
  object-fit: contain;
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity 0.3s ease;
  vertical-align: middle;
}

.sms-btn {
  font-size: 13px;
  color: #1e6fff;
  padding: 0 8px;
  white-space: nowrap;

  &:disabled {
    color: #c0c4cc;
  }
}

.agreement-section {
  margin: 8px 0;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 16px;
}

.agreement-section :deep(.el-checkbox) {
  display: flex;
  align-items: flex-start;
  line-height: 1.5;
  margin-top: 0;
}

.agreement-section :deep(.el-checkbox__input) {
  margin-top: 2px;
  flex-shrink: 0;
}

.agreement-section :deep(.el-checkbox__label) {
  display: none;
}

.agreement-text {
  font-size: 14px;
  color: #606266;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  line-height: 1.5;
  flex: 1;
  margin-top: 0;
}

.agreement-link {
  font-size: 14px;
  text-decoration: none;
}

.submit-section {
  margin-top: 10px;
  margin-bottom: 24px;
}

.submit-btn {
  width: 100%;
  height: 44px;
  font-size: 16px;
  font-weight: 500;
  border-radius: 12px;
  background: linear-gradient(135deg, #3399ff 0%, #00c9ff 100%);
  border: none;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(51, 153, 255, 0.3);

  &:hover {
    box-shadow: 0 4px 12px rgba(51, 153, 255, 0.4);
  }

  &:active {
    box-shadow: 0 1px 4px rgba(51, 153, 255, 0.3);
  }
}

.success-dialog {
  :deep(.el-dialog) {
    border-radius: 16px;
    background: var(--color-card-bg);
    color: var(--color-text);
  }
}

.success-content {
  text-align: center;
  padding: 20px 0;
}

.success-icon {
  font-size: 64px;
  color: #67c23a;
  margin-bottom: 16px;
}

.success-message {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.6;
  margin: 0;
}

/* 用户协议弹窗样式 */
.agreement-dialog {
  :deep(.el-dialog) {
    border-radius: 16px;
    background: #ffffff;
    color: #606266;
    display: flex;
    flex-direction: column;
    height: 600px;
    max-height: 80vh;
    margin: 0 auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  :deep(.el-dialog__wrapper) {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  :deep(.el-dialog__header) {
    padding: 20px 24px;
    border-bottom: 1px solid #ebeef5;
    flex-shrink: 0;
  }

  :deep(.el-dialog__title) {
    font-size: 18px;
    font-weight: 600;
    color: #303133;
  }

  :deep(.el-dialog__body) {
    padding: 20px 24px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
  }

  :deep(.el-dialog__footer) {
    padding: 16px 24px;
    border-top: 1px solid #ebeef5;
    flex-shrink: 0;
  }
}

.agreement-dialog-content {
  max-height: 500px;
  overflow-y: auto;
  padding-right: 8px;

  &::-webkit-scrollbar {
    width: 6px;
  }

  &::-webkit-scrollbar-track {
    background: #f5f5f5;
    border-radius: 3px;
  }

  &::-webkit-scrollbar-thumb {
    background: #c0c4cc;
    border-radius: 3px;

    &:hover {
      background: #a0a4aa;
    }
  }
}

.agreement-text-content {
  font-size: 14px;
  line-height: 1.8;
  color: #606266;

  :deep(p) {
    margin: 6px 0;
    line-height: 1.8;
  }

  :deep(p:first-child) {
    margin-top: 0;
  }
}

.agreement-dialog-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;

  :deep(.el-checkbox) {
    flex: 1;
  }

  :deep(.el-button) {
    margin-left: 16px;
  }
}

/* 响应式设计 */
@media (max-width: 320px) {
  .register-form {
    padding: 16px;
  }

  .register-form-content {
    padding: 24px;
  }

  .el-input {
    :deep(.el-input__inner) {
      height: 44px;
      font-size: 15px;
      padding-left: 50px;
    }
  }

  .submit-btn {
    height: 44px;
    font-size: 15px;
  }
}
</style>