<script setup lang="ts">
import type { BlockSchema } from './types';

import MIcon from '#/components/icon/icon.vue';

/**
 * 左侧组件库：渲染所有可拖拽块类型
 * 用户从这里拖动到中间画布（SortableJS 用 pull:clone 模式，左侧库不会减少）
 */
defineProps<{
  /** 所有可拖拽块定义 */
  blocks: BlockSchema[];
}>();
</script>

<template>
  <div class="block-library">
    <div class="panel-header">
      <span class="title">组件库</span>
      <span class="hint">拖入画布</span>
    </div>
    <div class="block-list">
      <div
        v-for="block in blocks"
        :key="block.type"
        class="block-item"
        :data-block-type="block.type"
      >
        <MIcon v-if="block.icon" :icon="block.icon" size="16" />
        <span class="block-label">{{ block.label }}</span>
      </div>
      <div v-if="blocks.length === 0" class="empty-hint">暂无可拖入组件</div>
    </div>
  </div>
</template>

<style scoped lang="scss">
.block-library {
  display: flex;
  flex-direction: column;
  width: 200px;
  height: 100%;
  border-right: 1px solid var(--ant-color-border-secondary, #e5e6eb);
  background: var(--ant-color-fill-quaternary, #fafbfc);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--ant-color-border-secondary, #e5e6eb);
  font-size: 13px;

  .title {
    font-weight: 600;
    color: var(--ant-color-text, #1d2129);
  }

  .hint {
    color: var(--ant-color-text-tertiary, #86909c);
    font-size: 11px;
  }
}

.block-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 8px;
}

.block-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  margin-bottom: 6px;
  border: 1px dashed var(--ant-color-border, #c9cdd4);
  border-radius: 4px;
  background: var(--ant-color-bg-container, #fff);
  font-size: 13px;
  color: var(--ant-color-text-secondary, #4e5969);
  cursor: grab;
  user-select: none;
  transition: all 0.15s;

  &:hover {
    border-color: var(--ant-color-primary, #165dff);
    color: var(--ant-color-primary, #165dff);
    background: var(--ant-color-primary-bg, #f2f7ff);
  }

  &:active {
    cursor: grabbing;
  }

  .block-label {
    flex: 1;
  }
}

.empty-hint {
  padding: 24px 12px;
  text-align: center;
  color: var(--ant-color-text-quaternary, #c9cdd4);
  font-size: 12px;
}
</style>
