<template>
  <div v-if="files.length > 0" class="file-list">
    <el-card
        v-for="file in files"
        :key="file.id"
        shadow="hover"
        class="file-item"
        :class="{ 'private-note': file.isPrivate === 1 }"
    >
      <div @click="$emit('preview', file)" class="file-content">
        <div class="file-title-wrapper">
          <el-icon class="file-icon"><Document /></el-icon>
          <span class="file-title-text">{{ file.title }}</span>
        </div>
        <div class="file-meta">
          <span class="file-group-name">{{ file.groupingName }}</span>
          <el-icon v-if="file.isPrivate === 1 && !isUserLoggedIn" class="lock-icon"><Lock /></el-icon>
        </div>
      </div>
    </el-card>
  </div>
  <el-empty v-else description="暂无笔记，请创建或上传" />
</template>

<script setup>
import { Lock, Document } from '@element-plus/icons-vue';

const props = defineProps({
  files: {
    type: Array,
    required: true,
  },
  isUserLoggedIn: {
    type: Boolean,
    required: true,
  }
});

defineEmits(['preview']);
</script>

<style scoped>
.file-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.file-item {
  cursor: pointer;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: transform var(--transition-duration) ease, box-shadow var(--transition-duration) ease, border-color var(--transition-duration) ease;
  background-color: #ffffff;
  will-change: transform;
}

.dark-theme .file-item {
  background-color: #161b22; /* A darker card color for dark theme */
  border-color: var(--border-color-dark);
}

.file-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lifted);
  border-color: var(--primary-color);
}

.file-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem 1.2rem;
  min-height: 80px; /* Give some consistent height */
}

.file-title-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.file-icon {
  font-size: 1.2rem;
  color: var(--text-color-secondary);
}

.file-title-text {
  font-weight: 600;
  color: var(--text-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.5rem;
}

.file-group-name {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary-color);
  background-color: var(--primary-color-light);
  padding: 0.25rem 0.6rem;
  border-radius: var(--border-radius-full);
}

.lock-icon {
  color: var(--el-color-warning);
}
</style>
