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path: root/frontend/src/components/ProjectMetricRow.svelte
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<script lang="ts">
  // 首页指标卡行(round2 spec §1;round3 迁移 shadcn-svelte Card)
  // 数据通过 props 注入(ProjectsPage 拉取并共享聚合输入,见 dashboardMetrics.ts)。
  import { aggregateDashboard } from '../lib/dashboardMetrics';
  import * as Card from '$lib/components/ui/card';

  interface Props {
    /** 注入的聚合输入;null/undefined 视为"取不到"(占位 -) */
    projects: { id: string }[] | null;
    datasets: { id: string }[] | null;
    runs: { id: string; status: string; result?: unknown }[] | null;
    usage: { totals?: { input_tokens?: number; output_tokens?: number; requests?: number } } | null;
  }
  let { projects, datasets, runs, usage }: Props = $props();

  const metric = $derived(aggregateDashboard({ projects, datasets, runs, usage }));
</script>

  <div class="metric-row" role="list" aria-label="工作台概览">
    <Card.Root class="metric-r3" size="sm" data-testid="metric-card" role="listitem">
      <span class="mlabel">我的项目</span>
      <span class="mvalue">{metric.projectCount}</span>
    </Card.Root>
    <Card.Root class="metric-r3" size="sm" data-testid="metric-card" role="listitem">
      <span class="mlabel">数据集</span>
      <span class="mvalue">{metric.datasetCount}</span>
    </Card.Root>
    <Card.Root class="metric-r3" size="sm" data-testid="metric-card" role="listitem">
      <span class="mlabel">回测</span>
      <span class="mvalue">
        <span class="run-split"><i>运行中</i> {metric.runningRuns}</span>
        <span class="run-split"><i>已完成</i> {metric.doneRuns}</span>
      </span>
    </Card.Root>
    <Card.Root
      class="metric-r3"
      size="sm"
      data-testid="metric-card"
      role="listitem"
      data-todo={metric.usageLabel === '-' ? 'TODO: /api/ai/usage 未返回 totals.requests(使用记录为空)时保持占位 -' : undefined}
    >
      <span class="mlabel">AI 用量</span>
      <span class="mvalue">{metric.usageLabel}</span>
      {#if metric.usageTokens}<span class="mvalue-sub">{metric.usageTokens}</span>{/if}
    </Card.Root>
  </div>

<style>
  .metric-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.6rem;
    margin-bottom: 1.1rem;
  }
  .metric-row :global(.metric-r3) {
    gap: 0.12rem;
    min-width: 0;
  }
  .metric-row :global(.metric-r3 .mvalue) {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--foreground);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
    overflow-wrap: anywhere;
  }

  .mvalue-sub { color: var(--text-3); }
</style>