# AI 代码审查：每次 PR 触发（含 fork 跨仓库 PR），用 Claude Code 调用智谱 GLM(glm-5.2) 审查 diff，
# 把结论评论到 PR。ANTHROPIC_API_KEY / REVIEW_PAT 由 runner 的 envs 注入（不经 Gitea secret，
# 故 fork PR 也能拿到）；MAIN_API 用组织变量。
name: AI Code Review
on:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  review:
    runs-on: ubuntu-latest
    env:
      ANTHROPIC_BASE_URL: https://open.bigmodel.cn/api/anthropic
      ANTHROPIC_MODEL: glm-5.2
      CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC: "1"
      DISABLE_AUTOUPDATER: "1"
      IS_SANDBOX: "1"
      # ANTHROPIC_API_KEY 和 REVIEW_PAT 不要写在这里 —— 由 runner envs 注入
    steps:
      - name: 检出代码（兼容 fork PR：克隆 head 仓库）
        run: |
          git config --global http.extraHeader "Authorization: Basic $(printf 'oauth2:%s' "$REVIEW_PAT" | base64 -w0)"
          git clone "${{ gitea.event.pull_request.head.repo.clone_url }}" .
          git checkout "${{ gitea.event.pull_request.head.sha }}"

      - name: 生成 PR diff（从 base 仓库取目标分支做对比）
        run: |
          BASE_REPO="${{ gitea.event.pull_request.base.repo.clone_url }}"
          BASE_REF="${{ gitea.event.pull_request.base.ref }}"
          git remote add base "$BASE_REPO"
          git fetch base "$BASE_REF"
          git diff "base/$BASE_REF...HEAD" > pr.diff
          echo "diff 行数: $(wc -l < pr.diff)"

      - name: 安装 Claude Code（已装则跳过）
        run: |
          if command -v claude >/dev/null 2>&1; then echo "claude 已存在，跳过安装"
          else npm install -g @anthropic-ai/claude-code --registry=https://registry.npmmirror.com
          fi

      - name: 运行 AI 审查
        run: |
          claude -p "$(cat .claude/review-prompt.md)" \
                 --model glm-5.2 \
                 --output-format text \
                 --dangerously-skip-permissions \
                 --max-turns 15 > review.md || true

      - name: 把审查结论评论到 PR
        env:
          API: ${{ vars.MAIN_API }}
        run: |
          if [ -s review.md ]; then
            node -e 'let d="";process.stdin.on("data",c=>d+=c).on("end",()=>process.stdout.write(JSON.stringify({body:d})))' < review.md > /tmp/body.json
            curl -fsS -X POST "$API/repos/${{ gitea.repository }}/issues/${{ gitea.event.pull_request.number }}/comments" \
              -H "Authorization: token $REVIEW_PAT" \
              -H "Content-Type: application/json" \
              --data @/tmp/body.json
          else
            echo "review.md 为空，跳过评论"
          fi