name: CI/CD Pipeline

on:
  push:
    branches:
      - main
      - 'feature/*'
      - 'develop'
  pull_request:
    branches:
      - main

env:
  DEPLOY_HOST: micecola.top
  DEPLOY_USER: root
  TEST_DIR: /www/wwwroot/kb-web-test
  PROD_DIR: /www/wwwroot/kb-web

jobs:
  # ==================== 测试环境部署 ====================
  deploy-test:
    runs-on: ubuntu-latest
    if: github.ref != 'refs/heads/main'
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Deploy to test environment
        uses: appleboy/ssh-action@v1
        with:
          host: ${{ env.DEPLOY_HOST }}
          username: ${{ env.DEPLOY_USER }}
          key: ${{ secrets.DEPLOY_KEY }}
          script: |
            mkdir -p ${{ env.TEST_DIR }}
            cd ${{ env.TEST_DIR }}
            
            # 备份需要保留的文件
            BACKUP_DIR="/tmp/kb-web-backup-$$"
            mkdir -p $BACKUP_DIR
            [ -f config.php ] && cp config.php $BACKUP_DIR/
            for dir in */; do
              if [ -d "$dir" ] && [ "$dir" != "demo/" ]; then
                cp -r "$dir" $BACKUP_DIR/ 2>/dev/null || true
              fi
            done
            
            # 部署代码
            if [ -d .git ]; then
              git fetch origin
              git checkout ${{ github.ref_name }} 2>/dev/null || git checkout -b ${{ github.ref_name }} origin/${{ github.ref_name }}
              git reset --hard origin/${{ github.ref_name }}
              # 清理未跟踪的文件（保留 .git 和备份目录）
              git clean -fd
            else
              git clone -b ${{ github.ref_name }} ssh://gitea-external/starmen1265/kb-web.git .
            fi
            
            # 恢复配置和用户数据
            [ -f $BACKUP_DIR/config.php ] && cp $BACKUP_DIR/config.php . && chown www:www config.php
            for dir in $BACKUP_DIR/*/; do
              dirname=$(basename "$dir")
              if [ "$dirname" != "demo" ] && [ "$dirname" != "deploy" ] && [ "$dirname" != "tests" ]; then
                cp -r "$dir" . 2>/dev/null || true
              fi
            done
            
            rm -rf $BACKUP_DIR
            chown -R www:www ${{ env.TEST_DIR }} 2>/dev/null || true
            echo "✅ 测试环境部署完成"

      - name: Notify deployment
        run: echo "✅ 测试环境: http://${{ env.DEPLOY_HOST }}:8081"

  # ==================== 运行测试 ====================
  test:
    runs-on: ubuntu-latest
    needs: deploy-test
    if: github.ref != 'refs/heads/main'
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.1'
          extensions: mbstring, xml, mysql

      - name: Install dependencies
        run: composer install --prefer-dist --no-progress || true

      - name: Run tests
        run: |
          if [ -f "vendor/bin/phpunit" ]; then
            ./vendor/bin/phpunit --testdox || exit 1
          else
            echo "执行 PHP 语法检查..."
            for f in index.php dashboard.php view.php; do
              php -l $f
            done
            echo "✅ 检查通过"
          fi

  # ==================== 回退（测试失败时） ====================
  rollback:
    runs-on: ubuntu-latest
    needs: test
    if: failure()
    steps:
      - name: Rollback test environment
        uses: appleboy/ssh-action@v1
        with:
          host: ${{ env.DEPLOY_HOST }}
          username: ${{ env.DEPLOY_USER }}
          key: ${{ secrets.DEPLOY_KEY }}
          script: |
            cd ${{ env.TEST_DIR }}
            git reset --hard HEAD~1
            echo "🔄 已回退"

      - name: Notify failure
        run: echo "❌ 测试失败，已回退"

  # ==================== 自动合并到 main ====================
  auto-merge:
    runs-on: ubuntu-latest
    needs: test
    if: success() && startsWith(github.ref, 'refs/heads/feature/')
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITEA_TOKEN }}

      - name: Configure git
        run: |
          git config user.name "CI Bot"
          git config user.email "ci-bot@micecola.top"

      - name: Merge to main
        run: |
          git checkout main
          git pull origin main
          git merge --no-ff ${{ github.ref_name }} -m "Merge ${{ github.ref_name }} into main [skip ci]"
          git push origin main

      - name: Notify merge
        run: echo "✅ 已合并到 main"

  # ==================== 正式环境部署 ====================
  deploy-prod:
    runs-on: ubuntu-latest
    needs: auto-merge
    if: success()
    steps:
      - name: Backup and deploy
        uses: appleboy/ssh-action@v1
        with:
          host: ${{ env.DEPLOY_HOST }}
          username: ${{ env.DEPLOY_USER }}
          key: ${{ secrets.DEPLOY_KEY }}
          script: |
            cd ${{ env.PROD_DIR }}
            
            # 备份
            BACKUP_DIR="/www/backup/kb-web"
            mkdir -p $BACKUP_DIR
            TIMESTAMP=$(date +%Y%m%d_%H%M%S)
            tar -czf $BACKUP_DIR/backup_$TIMESTAMP.tar.gz --exclude='.git' . 2>/dev/null || true
            cd $BACKUP_DIR && ls -t | tail -n +6 | xargs rm -f 2>/dev/null || true
            
            # 备份配置和用户数据
            TEMP_DIR="/tmp/kb-web-prod-$$"
            mkdir -p $TEMP_DIR
            cd ${{ env.PROD_DIR }}
            [ -f config.php ] && cp config.php $TEMP_DIR/
            for dir in */; do
              if [ -d "$dir" ] && [ "$dir" != "demo/" ]; then
                cp -r "$dir" $TEMP_DIR/ 2>/dev/null || true
              fi
            done
            
            # 部署
            cd ${{ env.PROD_DIR }}
            git fetch origin
            git reset --hard origin/main
            git clean -fd
            
            # 恢复配置和用户数据
            [ -f $TEMP_DIR/config.php ] && cp $TEMP_DIR/config.php . && chown www:www config.php
            for dir in $TEMP_DIR/*/; do
              dirname=$(basename "$dir")
              if [ "$dirname" != "demo" ] && [ "$dirname" != "deploy" ] && [ "$dirname" != "tests" ]; then
                cp -r "$dir" . 2>/dev/null || true
              fi
            done
            
            rm -rf $TEMP_DIR
            chown -R www:www ${{ env.PROD_DIR }} 2>/dev/null || true
            echo "✅ 正式环境部署完成"

  # ==================== main 分支直接部署 ====================
  direct-deploy:
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    steps:
      - name: Deploy to production
        uses: appleboy/ssh-action@v1
        with:
          host: ${{ env.DEPLOY_HOST }}
          username: ${{ env.DEPLOY_USER }}
          key: ${{ secrets.DEPLOY_KEY }}
          script: |
            cd ${{ env.PROD_DIR }}
            
            # 备份配置和用户数据
            TEMP_DIR="/tmp/kb-web-prod-$$"
            mkdir -p $TEMP_DIR
            [ -f config.php ] && cp config.php $TEMP_DIR/
            for dir in */; do
              if [ -d "$dir" ] && [ "$dir" != "demo/" ]; then
                cp -r "$dir" $TEMP_DIR/ 2>/dev/null || true
              fi
            done
            
            # 部署
            git fetch origin
            git reset --hard origin/main
            git clean -fd
            
            # 恢复配置和用户数据
            [ -f $TEMP_DIR/config.php ] && cp $TEMP_DIR/config.php . && chown www:www config.php
            for dir in $TEMP_DIR/*/; do
              dirname=$(basename "$dir")
              if [ "$dirname" != "demo" ] && [ "$dirname" != "deploy" ] && [ "$dirname" != "tests" ]; then
                cp -r "$dir" . 2>/dev/null || true
              fi
            done
            
            rm -rf $TEMP_DIR
            chown -R www:www ${{ env.PROD_DIR }} 2>/dev/null || true
            echo "✅ 正式环境已更新"