pc_nuxt/app/pages/recharge.vue

<template>
  <div>
    <AppHero
      kicker="AI ONLINE POINTS"
      title="点数充值"
      desc="点数长期有效，多端通用。小程序、H5、PC 端共享同一份点数。"
    >
      <template #aside>
        <!-- 余额卡 -->
        <div class="w-full rounded-3xl border border-[var(--c-e8eef7)] bg-[var(--c-ffffff)]/80 p-5 shadow-[0_18px_34px_var(--sh-0-92-190-100)] backdrop-blur lg:w-[260px]">
          <div class="text-xs font-bold text-[var(--c-8a97a8)]">我的点数</div>
          <div class="mt-2 flex items-end gap-1.5">
            <span class="text-4xl font-extrabold leading-none text-[var(--c-0b8cff)]">{{ balanceText }}</span>
            <span v-if="balanceUnit" class="pb-1 text-sm font-bold text-[var(--c-8a97a8)]">{{ balanceUnit }}</span>
          </div>
          <NuxtLink to="/bill" class="mt-3 inline-flex items-center gap-1 text-xs font-bold text-[var(--c-0b8cff)] hover:underline">
            查看账单明细
            <UIcon name="i-lucide-chevron-right" class="size-3.5" />
          </NuxtLink>
        </div>
      </template>
    </AppHero>

    <div class="mx-auto max-w-7xl px-4 py-6 sm:px-6 lg:px-8 lg:py-8">
      <div class="lg:grid lg:grid-cols-12 lg:gap-8">
        <!-- ===== 左：套餐选择 ===== -->
        <div class="lg:col-span-7">
          <div class="rounded-2xl bg-[var(--c-ffffff)] p-5 shadow-[0_8px_28px_var(--sh-34-68-112-50)] lg:p-6">
            <div class="flex items-baseline">
              <h2 class="text-base font-extrabold text-[var(--c-172033)] lg:text-lg">选择充值套餐</h2>
              <span class="ml-auto text-xs text-[var(--c-8a95a6)]">点数长期有效</span>
            </div>

            <!-- 加载中 -->
            <div v-if="loading" class="grid grid-cols-2 gap-3 pt-4 sm:grid-cols-3">
              <div v-for="i in 3" :key="i" class="h-[124px] animate-pulse rounded-2xl bg-[var(--c-f1f5fa)]" />
            </div>

            <!-- 套餐网格 -->
            <div v-else-if="packages.length" class="grid grid-cols-2 gap-3 pt-4 sm:grid-cols-3">
              <button
                v-for="pkg in packages"
                :key="pkg.id"
                type="button"
                class="relative flex min-h-[124px] flex-col items-center justify-center gap-2 rounded-2xl border-2 p-4 transition-all"
                :class="current && current.id === pkg.id
                  ? 'border-[var(--c-0b8cff)] bg-[var(--c-f4faff)] shadow-[0_0_0_4px_var(--sh-11-140-255-100)]'
                  : 'border-transparent bg-[var(--c-f7f9fd)] hover:border-[var(--c-e5edf7)]'"
                @click="selectPackage(pkg)"
              >
                <span
                  v-if="pkg.badge"
                  class="absolute left-1/2 top-2 -translate-x-1/2 whitespace-nowrap rounded-full bg-[var(--c-0b8cff)]/10 px-2 py-0.5 text-[10px] font-extrabold text-[var(--c-0b8cff)]"
                >{{ pkg.badge }}</span>
                <span class="mt-4 text-xl font-extrabold text-[var(--c-172033)]">{{ pkg.points }}点</span>
                <span class="text-sm font-extrabold text-[var(--c-0b8cff)]">￥{{ pkg.price_yuan }}</span>
                <span v-if="pkg.old_price_yuan" class="flex items-center gap-1.5 text-xs">
                  <span class="text-[var(--c-a0aabb)] line-through">￥{{ pkg.old_price_yuan }}</span>
                  <span
                    v-if="pkg.bonus_percent"
                    class="rounded-full bg-[var(--c-edfdf4)] px-1.5 py-0.5 font-extrabold text-[var(--c-159a54)]"
                  >多送{{ pkg.bonus_percent }}%</span>
                </span>
              </button>
            </div>

            <!-- 空态 -->
            <div v-else class="py-14 text-center">
              <UIcon name="i-lucide-package-x" class="mx-auto mb-3 size-10 text-[var(--c-a0aabb)]" />
              <div class="text-sm text-[var(--c-8a95a6)]">暂无可用套餐</div>
            </div>

            <!-- 确认充值 -->
            <button
              type="button"
              class="mt-5 flex h-12 w-full items-center justify-center rounded-full bg-gradient-to-r from-[var(--c-0b8cff)] to-[var(--c-3aa9ff)] text-base font-extrabold text-white shadow-[0_12px_24px_var(--sh-11-140-255-220)] transition-opacity disabled:cursor-not-allowed disabled:opacity-50 lg:h-14"
              :disabled="!current || payState === 'loading'"
              @click="startPay"
            >
              {{ buyText }}
            </button>
          </div>

          <!-- 权益 -->
          <div class="mt-5 grid grid-cols-1 gap-3 sm:grid-cols-2">
            <div class="rounded-2xl bg-[var(--c-0b8cff)]/[0.07] p-4">
              <div class="text-sm font-extrabold text-[var(--c-0b8cff)]">点数长期有效</div>
              <div class="mt-1.5 text-xs leading-relaxed text-[var(--c-66758a)]">购买后可用于所有 AI 图像工具</div>
            </div>
            <div class="rounded-2xl bg-[var(--c-0b8cff)]/[0.07] p-4">
              <div class="text-sm font-extrabold text-[var(--c-0b8cff)]">多端通用</div>
              <div class="mt-1.5 text-xs leading-relaxed text-[var(--c-66758a)]">小程序、H5、PC 端共享点数</div>
            </div>
          </div>

          <!-- 购买须知 -->
          <div class="mt-5 rounded-2xl bg-[var(--c-ffffff)] p-5 text-sm leading-relaxed text-[var(--c-8a95a6)] shadow-[0_8px_28px_var(--sh-34-68-112-40)]">
            <div class="mb-1 font-bold text-[var(--c-7f8896)]">购买须知：</div>
            <div>1、购买后长期有效，不支持退款；</div>
            <div>2、同一账号点数可在小程序、H5、PC端使用；</div>
            <div>3、点数适用于 AI 图片生成、高清修复、证件照、AI绘画等功能。</div>
          </div>
        </div>

        <!-- ===== 右：扫码支付（吸顶） ===== -->
        <div class="mt-5 lg:col-span-5 lg:mt-0">
          <div class="space-y-4 lg:sticky lg:top-20">
            <div class="rounded-2xl bg-[var(--c-ffffff)] p-6 text-center shadow-[0_8px_28px_var(--sh-34-68-112-50)]">
              <!-- 未开始 -->
              <template v-if="payState === 'idle'">
                <UIcon :name="payIdleIcon" class="mx-auto mb-4 size-12 text-[var(--c-a0aabb)]" />
                <div class="mb-1 text-base font-bold text-[var(--c-172033)]">{{ payIdleTitle }}</div>
                <div class="text-sm text-[var(--c-a0aabb)]">{{ payIdleDesc1 }}</div>
                <div class="text-sm text-[var(--c-a0aabb)]">{{ payIdleDesc2 }}</div>
              </template>

              <!-- 生成中 / 待支付 / 成功 -->
              <template v-else>
                <div class="mb-1 text-base font-bold text-[var(--c-172033)]">
                  {{ payPanelTitle }}
                </div>
                <div class="mb-4 text-sm text-[var(--c-8a95a6)]">
                  {{ payStateText }}
                </div>

                <div class="mx-auto mb-4 flex h-[200px] w-[200px] items-center justify-center rounded-2xl bg-[var(--c-f7f9fd)]">
                  <div v-if="payState === 'loading'" class="flex flex-col items-center gap-2">
                    <span class="size-7 animate-spin rounded-full border-2 border-[var(--c-0b8cff)] border-t-transparent" />
                    <span class="text-xs text-[var(--c-a0aabb)]">生成二维码...</span>
                  </div>

                  <div v-else-if="payState === 'success'" class="flex flex-col items-center gap-2">
                    <UIcon name="i-lucide-circle-check" class="size-14 text-[var(--c-17a65a)]" />
                    <span class="text-sm font-bold text-[var(--c-17a65a)]">+{{ current?.points || 0 }} 点已到账</span>
                  </div>

                  <div v-else-if="isMobileClient && payState === 'pending'" class="flex flex-col items-center gap-2">
                    <UIcon name="i-lucide-smartphone" class="size-12 text-[var(--c-0b8cff)]" />
                    <span class="text-xs font-bold text-[var(--c-0b8cff)]">等待支付完成...</span>
                  </div>

                  <ClientOnly v-else-if="codeUrl">
                    <vue-qr :text="codeUrl" :size="180" :margin="8" />
                  </ClientOnly>

                  <div v-else class="flex flex-col items-center gap-2">
                    <UIcon name="i-lucide-triangle-alert" class="size-9 text-[var(--c-f04438)]" />
                    <span class="text-xs text-[var(--c-f04438)]">生成失败，请重试</span>
                  </div>
                </div>

                <div v-if="payState !== 'success'" class="text-xs text-[var(--c-a0aabb)]">
                  支付金额：￥{{ current?.price_yuan || '0.00' }}
                </div>

                <div class="mt-4 flex justify-center gap-3">
                  <button
                    v-if="payState !== 'success'"
                    class="rounded-full px-4 py-2 text-xs text-[var(--c-8a95a6)] transition-colors hover:text-[var(--c-172033)]"
                    @click="cancelPay"
                  >
                    取消支付
                  </button>
                  <button
                    v-else
                    class="rounded-full bg-[var(--c-0b8cff)] px-6 py-2 text-xs font-bold text-white transition-colors hover:bg-[var(--c-0a7ce0)]"
                    @click="finishPay"
                  >
                    完成
                  </button>
                </div>
              </template>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup>
import VueQr from 'vue-qr'

useSeoMeta({
  title: '点数充值 - AI在线',
  description: '选择套餐充值点数，点数长期有效、多端通用',
})

const { userInfo, isLogin, showLogin, refreshBalance } = useUser()
const { post } = useApi()
const { reportCv } = usePvcv()
const toast = useToast()
const route = useRoute()
const { clientId, isMobileClient, isWechatClient } = useClientDevice()
const wxPayOpenId = useCookie('wechat_pay_open_id', { maxAge: 30 * 24 * 3600, path: '/' })
const WECHAT_MP_APPID = 'wxd2aa05b2249b16ce'

const packages = ref([])
const current = ref(null)
const loading = ref(true)
const balance = reactive({ points: 0 })

// idle | loading | pending | success | error
const payState = ref('idle')
const codeUrl = ref('')
const orderNo = ref('')
let pollingTimer = null

const balanceText = computed(() => (Number(balance.points) < 0 ? '不限' : String(Number(balance.points) || 0)))
const balanceUnit = computed(() => (balanceText.value === '不限' ? '' : '点'))
const buyText = computed(() => {
  if (!current.value) return '请选择套餐'
  return `确认充值（${current.value.price_yuan}元）`
})
const payIdleIcon = computed(() => (isMobileClient.value ? 'i-lucide-smartphone' : 'i-lucide-qr-code'))
const payIdleTitle = computed(() => {
  if (!isMobileClient.value) return '微信扫码支付'
  return isWechatClient.value ? '微信内支付' : '手机微信支付'
})
const payIdleDesc1 = computed(() => {
  if (!isMobileClient.value) return '选择套餐后点击「确认充值」'
  return isWechatClient.value ? '选择套餐后将拉起微信支付' : '选择套餐后将跳转微信支付页'
})
const payIdleDesc2 = computed(() => {
  if (!isMobileClient.value) return '这里会生成支付二维码'
  return '支付完成后点数会自动到账'
})
const payPanelTitle = computed(() => {
  if (payState.value === 'success') return '充值成功'
  if (!isMobileClient.value) return '微信扫码支付'
  return isWechatClient.value ? '微信内支付' : '手机微信支付'
})
const payStateText = computed(() => {
  if (payState.value === 'loading') return isMobileClient.value ? '正在创建订单并准备拉起支付...' : '正在创建订单...'
  if (payState.value === 'pending') {
    if (!isMobileClient.value) return '请使用微信扫描二维码完成支付'
    return isWechatClient.value ? '请在微信支付弹窗中完成支付' : '请在打开的微信支付页面完成支付'
  }
  if (payState.value === 'success') return '点数已到账，可以开始创作了'
  return '订单创建失败'
})

function showMsg(msg, color = 'error') {
  toast.add({ title: msg, color })
}

// ==================== 套餐 & 余额 ====================
async function loadPackages() {
  loading.value = true
  try {
    const res = await post('/point/packagelist')
    packages.value = res.list || []
    current.value = packages.value.find(p => p.badge === '推荐') || packages.value[0] || null
  } catch (e) {
    packages.value = []
    showMsg(e.message || '套餐加载失败')
  } finally {
    loading.value = false
  }
}

async function loadBalance() {
  if (!isLogin.value) return
  try {
    const res = await post('/point/balance')
    balance.points = res.data?.points || 0
    userInfo.value = { ...userInfo.value, balance: balance.points }
  } catch {
    // 忽略
  }
}

function selectPackage(pkg) {
  if (payState.value === 'pending' || payState.value === 'loading') cancelPay()
  current.value = pkg
}

// ==================== 支付（PC 扫码 / H5 微信支付） ====================
function isInvalidOpenId(value) {
  return !value || value === 'undefined' || value === 'null'
}

function cleanOAuthQuery() {
  if (!import.meta.client) return
  const url = new URL(window.location.href)
  url.searchParams.delete('code')
  url.searchParams.delete('state')
  window.history.replaceState({}, document.title, url.toString())
}

function getWechatAuthUrl(packageId) {
  const url = new URL(window.location.href)
  url.searchParams.delete('code')
  url.searchParams.delete('state')
  const redirectUri = encodeURIComponent(url.toString())
  return `https://open.weixin.qq.com/connect/oauth2/authorize?appid=${WECHAT_MP_APPID}&redirect_uri=${redirectUri}&response_type=code&scope=snsapi_base&state=pointbuy_${packageId}#wechat_redirect`
}

function getQueryValue(value) {
  return Array.isArray(value) ? value[0] : value
}

function invokeWechatPay(payInfo) {
  if (!import.meta.client) return

  const payload = {
    appId: payInfo.appId || payInfo.appid || WECHAT_MP_APPID,
    timeStamp: String(payInfo.timeStamp || payInfo.timestamp || ''),
    nonceStr: payInfo.nonceStr || payInfo.noncestr || '',
    package: payInfo.package || (payInfo.prepay_id ? `prepay_id=${payInfo.prepay_id}` : ''),
    signType: payInfo.signType || 'RSA',
    paySign: payInfo.paySign || payInfo.paysign || '',
  }

  const onReady = () => {
    window.WeixinJSBridge.invoke('getBrandWCPayRequest', payload, (res = {}) => {
      if (res.err_msg === 'get_brand_wcpay_request:ok') {
        pollOnce()
      } else if (res.err_msg === 'get_brand_wcpay_request:cancel') {
        cancelPay()
        showMsg('支付已取消', 'warning')
      } else {
        payState.value = 'error'
        showMsg('支付失败，请重试')
      }
    })
  }

  if (typeof window.WeixinJSBridge === 'undefined') {
    document.addEventListener('WeixinJSBridgeReady', onReady, false)
  } else {
    onReady()
  }
}

async function handleWechatOAuthReturn() {
  if (!import.meta.client || !isMobileClient.value || !isWechatClient.value) return
  const code = getQueryValue(route.query.code)
  const state = String(getQueryValue(route.query.state) || '')
  if (!code || !state.startsWith('pointbuy_')) return

  try {
    const res = await post('/common/getopenid', { code, client: 2 })
    const openId = res.data?.wx_open_id || ''
    if (!openId) throw new Error('获取 openid 失败')
    wxPayOpenId.value = openId
    cleanOAuthQuery()

    const packageId = Number(state.replace('pointbuy_', ''))
    const target = packages.value.find(item => Number(item.id) === packageId)
    if (target) current.value = target
    if (current.value) await startPay({ skipOauth: true })
  } catch (e) {
    cleanOAuthQuery()
    showMsg(e.message || '微信支付身份获取失败，请重新点击充值')
  }
}

async function startPay(options = {}) {
  if (!current.value) return
  reportCv('point_recharge_click', { page_key: 'recharge' })
  if (!isLogin.value) {
    showLogin.value = true
    return
  }

  if (isMobileClient.value && isWechatClient.value && isInvalidOpenId(wxPayOpenId.value) && !options.skipOauth) {
    window.location.href = getWechatAuthUrl(current.value.id)
    return
  }

  payState.value = 'loading'
  codeUrl.value = ''
  try {
    const payload = {
      package_id: current.value.id,
      client: clientId.value,
      base_in_wechat: isWechatClient.value ? 1 : 0,
    }
    if (isMobileClient.value && isWechatClient.value) {
      payload.open_id = wxPayOpenId.value
    }

    const res = await post('/point/createorder', payload)
    const data = res.data || {}
    orderNo.value = data.order_no || ''
    reportCv('point_recharge_order', { page_key: 'recharge' })

    if (data.mode === 'wxpay_jsapi' || data.package || data.paySign) {
      payState.value = 'pending'
      startPolling()
      invokeWechatPay(data)
      return
    }

    const h5Url = data.h5_url || data.h5Url || ''
    if (data.mode === 'wxpay_h5' && h5Url) {
      payState.value = 'pending'
      startPolling()
      window.location.href = h5Url
      return
    }

    const url = data.code_url || data.codeUrl || data.qr_code || ''
    if (url) {
      codeUrl.value = url
      payState.value = 'pending'
      startPolling()
    } else {
      payState.value = 'error'
      showMsg(res.msg || '支付暂不可用')
    }
  } catch (e) {
    payState.value = 'error'
    showMsg(e.message || '创建订单失败')
  }
}

// 轮询订单状态：服务端会主动查微信并流转订单 + 幂等入账
async function pollOnce() {
  if (!orderNo.value) return
  try {
    const res = await post('/point/orderstatus', { order_no: orderNo.value })
    const d = res.data || {}
    if (Number(d.status) === 20) {
      clearInterval(pollingTimer)
      payState.value = 'success'
      balance.points = d.balance ?? balance.points
      refreshBalance()
      reportCv('point_recharge_paid', { page_key: 'recharge' })
    }
  } catch {
    // 单次失败不中断轮询
  }
}

function startPolling() {
  clearInterval(pollingTimer)
  pollingTimer = setInterval(async () => {
    await pollOnce()
  }, 2000)
}

function cancelPay() {
  clearInterval(pollingTimer)
  payState.value = 'idle'
  codeUrl.value = ''
  orderNo.value = ''
}

function finishPay() {
  cancelPay()
  loadBalance()
}

onMounted(async () => {
  await loadPackages()
  await loadBalance()
  await handleWechatOAuthReturn()
})

watch(isLogin, async (loggedIn) => {
  if (!loggedIn) {
    cancelPay()
    balance.points = 0
  }
  await loadPackages()
  if (loggedIn) await loadBalance()
})

onUnmounted(() => clearInterval(pollingTimer))
</script>