name: 清理旧工作流历史

on:
  schedule:
    - cron: '30 4 * * *'
  workflow_dispatch:

permissions:
  actions: write
  contents: read

jobs:
  prune:
    runs-on: ubuntu-latest
    steps:
      - name: 删除 3 天前的工作流运行与附件
        uses: actions/github-script@v7
        with:
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;
            const retentionMs = 3 * 24 * 60 * 60 * 1000;
            const cutoff = Date.now() - retentionMs;

            core.info(`开始清理 ${owner}/${repo} 中早于 ${new Date(cutoff).toISOString()} 的工作流 run～`);

            const runs = await github.paginate(github.rest.actions.listWorkflowRunsForRepo, {
              owner,
              repo,
              per_page: 100,
              status: 'completed'
            });

            let deleted = 0;
            for (const run of runs) {
              const runTime = new Date(run.created_at).getTime();
              if (runTime >= cutoff) continue;
              core.info(`删除 run #${run.id} (${run.name}) - 创建时间 ${run.created_at}`);
              try {
                await github.rest.actions.deleteWorkflowRun({ owner, repo, run_id: run.id });
                deleted++;
              } catch (error) {
                core.warning(`删除 run #${run.id} 失败：${error.message}`);
              }
            }

            if (deleted === 0) {
              core.info('没有需要清理的 run，历史保持良好状态喵。');
            } else {
              core.info(`共删除 ${deleted} 条运行记录。`);
            }

            core.info('继续检查旧的 artifact...');
            const artifacts = await github.paginate(github.rest.actions.listArtifactsForRepo, {
              owner,
              repo,
              per_page: 100
            });

            let deletedArtifacts = 0;
            for (const artifact of artifacts) {
              const created = new Date(artifact.created_at).getTime();
              if (created >= cutoff) continue;
              core.info(`删除 artifact #${artifact.id} (${artifact.name}) - 创建时间 ${artifact.created_at}`);
              try {
                await github.rest.actions.deleteArtifact({ owner, repo, artifact_id: artifact.id });
                deletedArtifacts++;
              } catch (error) {
                core.warning(`删除 artifact #${artifact.id} 失败：${error.message}`);
              }
            }

            if (deletedArtifacts === 0) {
              core.info('旧 artifact 无需清理，仓库保持清爽～');
            } else {
              core.info(`共删除 ${deletedArtifacts} 个 artifact。`);
            }