name: Update README Table

on:
  push:
    branches:
      - main
    paths:
      - '**/*.js'
      - '**/*.py'

jobs:
  update-readme:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: 检出代码
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: 配置 Python 环境
        uses: actions/setup-python@v5
        with:
          python-version: '3.x'

      - name: 运行更新脚本
        env:
          TZ: Asia/Shanghai
        run: |
          cat << 'EOF' > update_readme.py
          import os
          import re
          import datetime
          import subprocess

          # 1. 获取更改的文件列表（最近一次提交）
          try:
              # 获取当前提交与上一次提交之间的差异文件
              diff_cmd = ['git', 'diff', '--name-only', 'HEAD~1', 'HEAD']
              result = subprocess.run(diff_cmd, capture_output=True, text=True, check=True)
              changed_files = result.stdout.splitlines()
          except subprocess.CalledProcessError:
              # 如果没有上一次提交（例如第一次提交），则检查所有文件
              diff_cmd = ['git', 'diff', '--name-only', '--cached']
              result = subprocess.run(diff_cmd, capture_output=True, text=True, check=True)
              changed_files = result.stdout.splitlines()
          except Exception:
              changed_files = []

          # 筛选出 .js 或 .py 且实际存在的文件
          target_files = [f for f in changed_files if (f.endswith('.js') or f.endswith('.py')) and os.path.exists(f)]
          if not target_files:
              print("没有检测到相关脚本文件的变更，退出。")
              exit(0)

          # 2. 从变更文件中提取 Env 名称
          now = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
          updates = {}
          for f in target_files:
              with open(f, 'r', encoding='utf-8') as file:
                  content = file.read()
                  # 匹配 Env("名称") 或 Env('名称')
                  match = re.search(r'Env\s*\(\s*["\']([^"\']+)["\']\s*\)', content)
                  if match:
                      updates[match.group(1)] = now

          if not updates:
              print("变更的脚本文件中未找到 Env 标签，退出。")
              exit(0)

          # 3. 修改 README.md 中的表格
          readme_path = 'README.md'
          with open(readme_path, 'r', encoding='utf-8') as f:
              full_text = f.read()

          # 定义锚点标记（请确保 README.md 中已添加这两个注释）
          start_tag = "<!-- README_TABLE_START -->"
          end_tag   = "<!-- README_TABLE_END -->"

          if start_tag not in full_text or end_tag not in full_text:
              print("错误：在 README.md 中未找到锚点标记！")
              print("请添加以下两行注释包裹表格区域：")
              print(f"{start_tag}")
              print(f"{end_tag}")
              exit(1)

          # 分割文本
          pre_part, temp = full_text.split(start_tag)
          table_section, post_part = temp.split(end_tag)

          # 解析现有表格
          lines = table_section.strip().split('\n')
          header = []
          separator = []
          body_lines = []
          mode = 'header'

          for line in lines:
              line_stripped = line.strip()
              if not line_stripped.startswith('|'):
                  continue
              if '脚本名称' in line_stripped:
                  header.append(line)
                  mode = 'separator'
              elif '---' in line_stripped and mode == 'separator':
                  separator.append(line)
                  mode = 'body'
              else:
                  if mode == 'body':
                      body_lines.append(line)

          if not header or not separator:
              print("错误：README 表格格式无效，缺少表头或分隔行。")
              exit(1)

          # 更新已有行，并记录已存在的脚本名称
          existing_names = set()
          new_body_lines = []
          for line in body_lines:
              parts = [p.strip() for p in line.split('|')]
              if len(parts) >= 4:
                  name = parts[1]
                  existing_names.add(name)
                  if name in updates:
                      line = f"| {name} | {updates[name]} | ✅ |"
              new_body_lines.append(line)

          # 添加新增的脚本
          for name, tm in updates.items():
              if name not in existing_names:
                  new_body_lines.append(f"| {name} | {tm} | ✅ |")

          # 重新组合完整表格
          final_table = "\n".join(header + separator + new_body_lines)
          final_content = f"{pre_part}{start_tag}\n{final_table}\n{end_tag}{post_part}"

          # 写回 README.md
          with open(readme_path, 'w', encoding='utf-8') as f:
              f.write(final_content)

          print("README.md 表格更新成功。")
          EOF

          python update_readme.py

      - name: 提交并推送变更
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
          git add README.md
          if ! git diff --staged --quiet; then
            git commit -m "docs: 自动更新脚本状态 [skip ci]"
            git push
          else
            echo "README.md 无变更，无需提交。"
          fi