<template>
  <view class="page">
    <view class="title">{{ $t('forget.title') }}</view>
    
    <!-- 邮箱输入 -->
    <view class="input-box">
      <text class="input-tit">{{ $t('login.email') }}</text>
      <input 
        class="input-text" 
        type="text" 
        v-model="email" 
        :placeholder="$t('login.emailPlaceholder')" 
      />
    </view>
    
    <!-- 验证码输入 -->
    <view class="input-box">
      <text class="input-tit">{{ $t('login.code') }}</text>
      <input 
        class="input-text" 
        type="number" 
        v-model="code" 
        :placeholder="$t('login.codePlaceholder')" 
      />
      <wd-button type="info" :class="['code-btn', { active: !readonly }]" @click="getCode">
        {{ t('login.getCode') }}
      </wd-button>
    </view>
    
    <!-- 密码输入 -->
    <view class="input-box">
      <text class="input-tit">{{ $t('forget.password') }}</text>
      <input 
        class="input-text" 
        type="password" 
        maxlength="20" 
        v-model="password" 
        :placeholder="$t('forget.passwordPlaceholder')" 
        @input="inputMethod(password)" 
      />
    </view>
    
    <!-- 密码强度提示 -->
    <view v-if="note !== ''" class="password-hint" style="font-size: 28rpx; color: #999;">
      <text style="line-height: 34rpx; padding-top: 15rpx; display: block;">
        {{ note }}
      </text>
      <text v-html="str2" style="margin-top: 10rpx; display: block;"></text>
    </view>
    
    <!-- 确认密码输入 -->
    <view class="input-box">
      <text class="input-tit">{{ $t('forget.passwordAgain') }}</text>
      <input 
        class="input-text" 
        type="password" 
        maxlength="20" 
        v-model="confirmPassword" 
        :placeholder="$t('forget.passwordAgainPlaceholder')" 
      />
    </view>
    
    <!-- 提交按钮 -->
    <view class="btn-box">
      <button @click="onSubmit" class="submit-btn">{{ $t('forget.submit') }}</button>
    </view>
  </view>
</template>

<script setup lang="ts">
import { ref } from 'vue'
import { useI18n } from 'vue-i18n'
import { commonApi } from '@/api/modules/common'
import { resetPassword } from '@/api/modules/auth'
import { validateEmail, checkPasswordStrength } from '@/utils/validator'

const { t } = useI18n()

// 表单数据
const email = ref('')
const code = ref('')
const password = ref('')
const confirmPassword = ref('')

// 验证码相关
const codeText = ref('Get Code')
const readonly = ref(false)

// 密码强度相关
const passwordOk = ref(false)
const note = ref('')
const str2 = ref('')

let codeTimer: any = null

/**
 * 表单验证函数
 */
// 邮箱是否为空
const isEmailEmpty = () => {
  if (!email.value) {
    uni.showToast({
      title: t('login.emailPlaceholder'),
      icon: 'none'
    })
    return false
  }
  return true
}

// 邮箱格式验证
const isEmailVerified = (emailVal: string) => {
  if (!validateEmail(emailVal)) {
    uni.showToast({
      title: t('login.emailError'),
      icon: 'none'
    })
    return false
  }
  return true
}

// 验证码是否为空
const isCodeEmpty = () => {
  if (!code.value) {
    uni.showToast({
      title: t('login.codePlaceholder'),
      icon: 'none'
    })
    return false
  }
  return true
}

// 密码是否为空
const isPasswordEmpty = () => {
  if (!password.value) {
    uni.showToast({
      title: t('forget.passwordPlaceholder'),
      icon: 'none'
    })
    return false
  }
  return true
}

// 确认密码是否为空
const isConfirmPasswordEmpty = () => {
  if (!confirmPassword.value) {
    uni.showToast({
      title: t('forget.passwordAgainPlaceholder'),
      icon: 'none'
    })
    return false
  }
  return true
}

// 密码是否匹配
const isPasswordMatch = () => {
  if (confirmPassword.value !== password.value) {
    uni.showToast({
      title: t('forget.passwordNotMatch'),
      icon: 'none'
    })
    return false
  }
  return true
}

// 密码强度验证
const isPasswordStrongEnough = () => {
  if (!passwordOk.value) {
    uni.showToast({
      title: note.value || t('forget.passwordStrengthWeak'),
      icon: 'none'
    })
    return false
  }
  return true
}

/**
 * 发送验证码
 */
const getCode = async () => {
  if (readonly.value) {
    return
  }

  if (!isEmailEmpty()) return
  if (!isEmailVerified(email.value)) return

  try {
    await commonApi.sendMailCaptcha(email.value)
    uni.showToast({
      title: t('login.sendCodeSuccess'),
      icon: 'none'
    })
    getCodeState()
  } catch (error) {
    console.error('Send code error:', error)
  }
}

/**
 * 验证码倒计时
 */
const getCodeState = () => {
  if (codeTimer) {
    clearInterval(codeTimer)
  }
  
  readonly.value = true
  let countdown = 60
  codeText.value = `60S`
  
  codeTimer = setInterval(() => {
    countdown--
    codeText.value = `${countdown}S`
    if (countdown <= 0) {
      clearInterval(codeTimer)
      codeText.value = t('login.getCode')
      readonly.value = false
    }
  }, 1000)
}

/**
 * 密码强度验证
 */
const inputMethod = (value: string) => {
  passwordOk.value = false
  const strength = checkPasswordStrength(value)
  
  if (strength === 'strong') {
    str2.value = `<span style='color:#18bc37'>${t('forget.passwordStrengthStrong')}</span>`
    note.value = ''
    passwordOk.value = true
  } else if (strength === 'medium') {
    note.value = t('forget.passwordStrengthWeak')
    str2.value = `<span style='color:#2979ff'>${t('forget.passwordStrengthMedium')}</span>`
    passwordOk.value = true
  } else if (strength === 'weak') {
    note.value = t('forget.passwordStrengthWeak')
    str2.value = ''
  } else {
    passwordOk.value = false
    note.value = t('forget.passwordStrengthWeak')
    str2.value = ''
  }
}

/**
 * 提交重置密码
 */
const onSubmit = async () => {
  // 表单验证
  if (!isEmailEmpty()) return
  if (!isEmailVerified(email.value)) return
  if (!isCodeEmpty()) return
  if (!isPasswordEmpty()) return
  if (!isPasswordStrongEnough()) return
  if (!isConfirmPasswordEmpty()) return
  if (!isPasswordMatch()) return

  try {
    await resetPassword(email.value, code.value, password.value)
    
    uni.showModal({
      title: t('global.tips'),
      content: t('forget.passwordChanged'),
      showCancel: false,
      success: () => {
        uni.navigateBack()
      }
    })
  } catch (error) {
    console.error('Reset password error:', error)
  }
}
</script>

<style lang="scss" scoped>
.page {
  background-color: #ffffff;
  padding: 0 30rpx;
  min-height: 100vh;

  .title {
    padding: 50rpx 0 50rpx 30rpx;
    font-size: 60rpx;
    color: #333333;
  }

  .input-box {
    display: flex;
    justify-content: space-between;
    min-height: 100rpx;
    padding-top: 30rpx;
    border-bottom: 1rpx solid #eeeeee;
    align-items: center;

    .input-tit {
      font-size: 30rpx;
      line-height: 34rpx;
      width: 230rpx;
      text-align: right;
      padding-right: 25rpx;
      padding-bottom: 10rpx;
      flex-shrink: 0;
    }

    .input-text {
      flex: 1;
      height: 70rpx;
      line-height: 70rpx;
      font-size: 30rpx;
    }

    .code-btn {
      height: 60rpx;
      background-color: #f8f9fb;
      font-size: 28rpx;
      padding: 0 14rpx;
      min-width: 0;
      border-radius: 10rpx;
      color: #999;
      line-height: 60rpx;
      margin-left: 20rpx;
      border: none;
      margin-bottom: 10rpx;

      &.active {
        color: $app-theme-color;
      }
    }
  }

  .password-hint {
    padding: 10rpx 0 10rpx 205rpx;
  }

  .btn-box {
    margin-top: 70rpx;

    .submit-btn {
      font-size: 32rpx;
      background: linear-gradient(90deg, #54a966 0%, #54a966 100%);
      color: #fff;
      height: 80rpx;
      line-height: 80rpx;
      border-radius: 50rpx;
      border: none;
    }
  }
}
</style>
