
<script setup lang="ts">
definePageMeta({ ssr: false })
import { ref } from 'vue'
import { usePlatformAuth } from '~/composables/usePlatformAuth'
const { login, PRESET_USERS } = usePlatformAuth()
const selected = ref('admin')
const loading = ref(false)
const error = ref('')

async function doLogin() {
  loading.value = true; error.value = ''
  const u = login(selected.value)
  if (u) {
    await navigateTo('/platform')
  } else {
    error.value = '登录失败'
  }
  loading.value = false
}
</script>

<template>
  <div class="min-h-screen bg-surface flex items-center justify-center p-4">
    <div class="w-full max-w-md">
      <div class="text-center mb-8">
        <div class="w-16 h-16 mx-auto mb-4 rounded-2xl bg-gradient-to-br from-primary to-accent flex items-center justify-center">
          <span class="text-white font-bold text-2xl font-mono">H</span>
        </div>
        <h1 class="text-2xl font-bold">智慧医养居家上门服务平台</h1>
        <p class="text-text-secondary text-sm mt-2">演示环境 — 选择角色即可登录</p>
      </div>

      <div class="bg-white rounded-2xl shadow-sm border p-6 space-y-4">
        <label class="block text-sm font-medium text-text-secondary">选择登录角色</label>
        <div class="grid grid-cols-2 gap-2">
          <button v-for="(u, k) in PRESET_USERS" :key="k"
            @click="selected = k"
            class="text-left px-4 py-3 rounded-xl border-2 transition-all text-sm"
            :class="selected === k ? 'border-primary bg-primary-50 text-primary' : 'border-gray-100 hover:border-gray-200'">
            <div class="font-medium">{{ u.userName }}</div>
            <div class="text-xs text-text-secondary">{{ u.userRole }}</div>
          </button>
        </div>

        <p v-if="error" class="text-red-500 text-sm text-center">{{ error }}</p>

        <button @click="doLogin" :disabled="loading"
          class="w-full py-3 bg-primary text-white rounded-xl font-semibold hover:bg-primary-700 transition-colors disabled:opacity-50">
          {{ loading ? '登录中...' : '进入平台' }}
        </button>

        <p class="text-xs text-text-secondary text-center">
          演示环境使用 Header 认证，无需密码。选择角色后直接进入对应工作台。
        </p>
      </div>
    </div>
  </div>
</template>
