name: Update README Table

on:
  push:
    branches:
      - main
    paths:
      - 'daily/**'          # 仅监控 daily 目录下的变更
      - '!daily/notify.py'  # 排除 notify.py
      - '!daily/**/*.md'    # 排除 md 文件

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. 获取本次 Push 更改的文件列表
          try:
              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 Exception:
              try:
                  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 = []

          now = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
          
          # 2. 提取变更文件中的 Env 名称及更新时间
          updates = {}
          for f in changed_files:
              if f.startswith('daily/') and os.path.exists(f):
                  filename = os.path.basename(f)
                  if filename != 'notify.py' and not f.endswith('.md'):
                      with open(f, 'r', encoding='utf-8') as file:
                          match = re.search(r'Env\s*\(\s*["\']([^"\']+)["\']\s*\)', file.read())
                          if match:
                              updates[match.group(1)] = now

          # 3. 遍历 daily 目录获取所有的 Env（用于找出表格中缺失的）
          all_envs = set()
          if os.path.exists('daily'):
              for root, _, files in os.walk('daily'):
                  for file in files:
                      if file != 'notify.py' and not file.endswith('.md'):
                          fpath = os.path.join(root, file).replace('\\', '/')
                          with open(fpath, 'r', encoding='utf-8') as f:
                              match = re.search(r'Env\s*\(\s*["\']([^"\']+)["\']\s*\)', f.read())
                              if match:
                                  all_envs.add(match.group(1))

          # 4. 修改 README.md
          readme_path = 'README.md'
          if not os.path.exists(readme_path):
              print("README.md 不存在！")
              exit(1)

          with open(readme_path, 'r', encoding='utf-8') as f:
              full_text = f.read()

          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：未找到锚点标记！")
              exit(1)

          pre_part, temp = full_text.split(start_tag)
          table_section, post_part = temp.split(end_tag)

          lines = table_section.strip().split('\n')
          header, separator, body_lines = [], [], []
          mode = 'header'

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

          existing_names = set()
          new_body_lines = []
          
          # A. 处理表格中已存在的脚本
          for line in body_lines:
              parts = [p.strip() for p in line.split('|')]
              if len(parts) >= 4:
                  name = parts[1]
                  existing_names.add(name)
                  # 如果该脚本在本次 push 中被修改，更新时间
                  if name in updates:
                      line = f"| {name} | {updates[name]} | ✅ |"
              new_body_lines.append(line)

          # B. 添加本次修改引发的新增脚本
          for name, tm in updates.items():
              if name not in existing_names:
                  new_body_lines.append(f"| {name} | {tm} | ✅ |")
                  existing_names.add(name)

          # C. 添加存在于 daily 目录但 README 表格中缺失的脚本
          for name in all_envs:
              if name not in existing_names:
                  new_body_lines.append(f"| {name} | {now} | ✅ |")
                  existing_names.add(name)

          final_table = "\n".join(header + separator + new_body_lines)
          final_content = f"{pre_part}{start_tag}\n{final_table}\n{end_tag}{post_part}"

          with open(readme_path, 'w', encoding='utf-8') as f:
              f.write(final_content)
          print("README.md 处理完成。")
          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 daily 脚本状态 [skip ci]"
            git push
          else
            echo "无变更需推送。"
          fi