<template>
  <section class="space-y-6">
    <header class="space-y-2">
      <h1 class="mos-title text-2xl font-semibold">邀请用户</h1>
      <p class="mos-muted text-sm">发送邀请链接给新成员。</p>
    </header>

    <div class="mos-card p-5 space-y-4">
      <div>
        <label class="text-xs font-semibold text-mosquito-ink/70">邮箱</label>
        <input class="mos-input mt-2 w-full" v-model="form.email" placeholder="name@company.com" />
      </div>
      <div>
        <label class="text-xs font-semibold text-mosquito-ink/70">角色</label>
        <select class="mos-input mt-2 w-full" v-model="form.role">
          <option value="管理员">管理员</option>
          <option value="运营">运营</option>
          <option value="只读">只读</option>
        </select>
      </div>
      <button class="mos-btn mos-btn-accent w-full" @click="sendInvite">发送邀请（演示）</button>
    </div>

    <ListSection :page="page" :total-pages="totalPages" @prev="page--" @next="page++">
      <template #title>邀请记录</template>
      <template #filters>
        <input class="mos-input !py-1 !px-2 !text-xs w-56" v-model="query" placeholder="搜索邮箱" />
        <select class="mos-input !py-1 !px-2 !text-xs" v-model="statusFilter">
          <option value="">全部状态</option>
          <option value="待接受">待接受</option>
          <option value="已接受">已接受</option>
          <option value="已拒绝">已拒绝</option>
          <option value="已过期">已过期</option>
        </select>
      </template>
      <template #default>
        <div v-if="pagedInvites.length" class="space-y-3">
          <div v-for="invite in pagedInvites" :key="invite.id" class="flex items-center justify-between rounded-xl border border-mosquito-line px-4 py-3">
            <div>
              <div class="text-sm font-semibold text-mosquito-ink">{{ invite.email }}</div>
              <div class="mos-muted text-xs">角色：{{ roleLabel(invite.role) }}</div>
              <div class="mos-muted text-xs">邀请时间：{{ formatDate(invite.invitedAt) }}</div>
              <div v-if="invite.expiredAt" class="mos-muted text-xs">过期时间：{{ formatDate(invite.expiredAt) }}</div>
            </div>
            <div class="flex items-center gap-2 text-xs text-mosquito-ink/70">
              <span class="rounded-full bg-mosquito-accent/10 px-2 py-1 text-[10px] font-semibold text-mosquito-brand">{{ invite.status }}</span>
              <button
                v-if="invite.status !== '已接受'"
                class="mos-btn mos-btn-secondary !py-1 !px-2 !text-xs"
                @click="resendInvite(invite.id)"
              >
                重发
              </button>
              <button
                v-if="invite.status === '待接受'"
                class="mos-btn mos-btn-secondary !py-1 !px-2 !text-xs"
                @click="expireInvite(invite.id)"
              >
                设为过期
              </button>
            </div>
          </div>
        </div>
      </template>
      <template #empty>
        <div v-if="!pagedInvites.length" class="text-sm text-mosquito-ink/60">暂无邀请记录</div>
      </template>
    </ListSection>
  </section>
</template>

<script setup lang="ts">
import { computed, onMounted, ref, watch } from 'vue'
import { useAuditStore } from '../stores/audit'
import { useUserStore } from '../stores/users'
import { useDataService } from '../services'
import ListSection from '../components/ListSection.vue'

const auditStore = useAuditStore()
const userStore = useUserStore()
const service = useDataService()
const query = ref('')
const statusFilter = ref('')
const page = ref(0)
const pageSize = 6
const form = ref({
  email: '',
  role: '运营'
})

onMounted(async () => {
  const invites = await service.getInvites()
  userStore.init([], invites, [])
})

const roleLabel = (role: string) => {
  if (role === 'admin') return '管理员'
  if (role === 'operator') return '运营'
  return '只读'
}

const formatDate = (value: string) => new Date(value).toLocaleString('zh-CN')

const sendInvite = () => {
  userStore.addInvite(form.value.email || '未填写邮箱', form.value.role === '管理员' ? 'admin' : form.value.role === '运营' ? 'operator' : 'viewer')
  auditStore.addLog('发送用户邀请', form.value.email || '未填写邮箱')
  form.value.email = ''
  form.value.role = '运营'
}

const resendInvite = (id: string) => {
  userStore.resendInvite(id)
  const invite = userStore.invites.find((item) => item.id === id)
  auditStore.addLog('重发邀请', invite?.email ?? id)
}

const expireInvite = (id: string) => {
  userStore.expireInvite(id)
  const invite = userStore.invites.find((item) => item.id === id)
  auditStore.addLog('设置邀请过期', invite?.email ?? id)
}

const filteredInvites = computed(() => {
  return userStore.invites.filter((invite) => {
    const matchesQuery = invite.email.includes(query.value.trim())
    const matchesStatus = statusFilter.value ? invite.status === statusFilter.value : true
    return matchesQuery && matchesStatus
  })
})

const totalPages = computed(() => Math.max(1, Math.ceil(filteredInvites.value.length / pageSize)))
const pagedInvites = computed(() => {
  const start = page.value * pageSize
  return filteredInvites.value.slice(start, start + pageSize)
})

watch([query, statusFilter], () => {
  page.value = 0
})
</script>
