name: Deploy

on:
  push:
    branches: [main]

jobs:
  deploy:
    runs-on: ubuntu-latest
    env:
      GOPROXY: https://goproxy.cn,direct
      GONOSUMCHECK: "*"
    steps:
      - uses: actions/checkout@v4

      - name: Cache Go SDK + modules
        uses: actions/cache@v3
        with:
          path: |
            /usr/local/go
            ~/go/pkg/mod
            ~/.cache/go-build
          key: go-${{ hashFiles('backend/go.mod') }}
          restore-keys: go-

      - name: Install Go
        run: |
          if [ ! -f /usr/local/go/bin/go ]; then
            GO_VERSION=$(grep '^go ' backend/go.mod | awk '{print $2}')
            curl -fsSL https://golang.google.cn/dl/go${GO_VERSION}.linux-amd64.tar.gz -o /tmp/go.tar.gz
            sudo tar -C /usr/local -xzf /tmp/go.tar.gz
          fi
          echo "/usr/local/go/bin" >> $GITHUB_PATH

      - name: Go tests
        working-directory: backend
        run: go test ./...

      - name: Cache Flutter SDK + pub
        uses: actions/cache@v3
        with:
          path: |
            /opt/flutter
            ~/.pub-cache
          key: flutter-3.41.6-${{ hashFiles('client/pubspec.lock') }}
          restore-keys: flutter-3.41.6-

      - name: Install Flutter
        run: |
          if [ ! -f /opt/flutter/bin/flutter ]; then
            curl -fsSL https://storage.flutter-io.cn/flutter_infra_release/releases/stable/linux/flutter_linux_3.41.6-stable.tar.xz -o /tmp/flutter.tar.xz
            sudo tar -C /opt -xf /tmp/flutter.tar.xz
          fi
          echo "/opt/flutter/bin" >> $GITHUB_PATH
        env:
          PUB_HOSTED_URL: https://pub.flutter-io.cn
          FLUTTER_STORAGE_BASE_URL: https://storage.flutter-io.cn

      - name: Flutter tests
        working-directory: client
        run: flutter test
        env:
          PUB_HOSTED_URL: https://pub.flutter-io.cn
          FLUTTER_STORAGE_BASE_URL: https://storage.flutter-io.cn

      - name: Build backend (linux/amd64)
        working-directory: backend
        run: GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o jiu-server .

      - name: Build Flutter Web
        working-directory: client
        run: flutter build web --release --dart-define=BASE_URL=https://jiu.51yanmei.com --dart-define=PUBLIC_URL=https://jiu.51yanmei.com
        env:
          PUB_HOSTED_URL: https://pub.flutter-io.cn
          FLUTTER_STORAGE_BASE_URL: https://storage.flutter-io.cn

      - name: Package artifacts
        run: |
          tar -czf web.tar.gz -C client/build web
          echo "VERSION=v$(date +%Y%m%d.%H%M)" >> $GITHUB_ENV

      - name: Create Forgejo Release
        env:
          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
          FORGEJO_URL: ${{ secrets.FORGEJO_URL }}
        run: |
          RELEASE_ID=$(curl -sf -X POST "${FORGEJO_URL}/api/v1/repos/${{ gitea.repository }}/releases" \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            -H "Content-Type: application/json" \
            -d "{\"tag_name\":\"${VERSION}\",\"name\":\"Release ${VERSION}\",\"draft\":false,\"prerelease\":false}" \
            | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")

          curl -sf -X POST "${FORGEJO_URL}/api/v1/repos/${{ gitea.repository }}/releases/${RELEASE_ID}/assets" \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            -F "attachment=@backend/jiu-server"

          curl -sf -X POST "${FORGEJO_URL}/api/v1/repos/${{ gitea.repository }}/releases/${RELEASE_ID}/assets" \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            -F "attachment=@web.tar.gz"

          echo "Release ${VERSION} created: ${FORGEJO_URL}/${{ gitea.repository }}/releases/tag/${VERSION}"

      - name: Setup SSH
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.EC2_SSH_KEY }}" > ~/.ssh/ec2.pem
          chmod 600 ~/.ssh/ec2.pem
          ssh-keyscan -H ${{ secrets.EC2_HOST }} >> ~/.ssh/known_hosts

      - name: Deploy to EC2
        env:
          EC2_HOST: ${{ secrets.EC2_HOST }}
          EC2_USER: ${{ secrets.EC2_USER }}
        run: |
          scp -i ~/.ssh/ec2.pem backend/jiu-server ${EC2_USER}@${EC2_HOST}:/tmp/jiu-server
          rsync -avz --delete -e "ssh -i ~/.ssh/ec2.pem" \
            client/build/web/ ${EC2_USER}@${EC2_HOST}:/tmp/jiu-web-new/
          ssh -i ~/.ssh/ec2.pem ${EC2_USER}@${EC2_HOST} << 'ENDSSH'
            sudo systemctl stop jiu
            cp /tmp/jiu-server /opt/jiu/backend/jiu-server
            chmod +x /opt/jiu/backend/jiu-server
            sudo systemctl start jiu
            for i in $(seq 1 30); do
              curl -sf http://localhost:8080/health && break
              sleep 2
            done
            rm -rf /opt/jiu/web-old
            mv /opt/jiu/web /opt/jiu/web-old 2>/dev/null || true
            mv /tmp/jiu-web-new /opt/jiu/web
            sudo nginx -s reload
          ENDSSH

      - name: Cleanup SSH key
        if: always()
        run: rm -f ~/.ssh/ec2.pem