name: Build Linux Binary

on:
  push:
    branches: [ main, master ]
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      version:
        description: 'Version to build (leave empty for auto)'
        required: false
        type: string
      create_release:
        description: 'Create GitHub Release'
        required: false
        default: false
        type: boolean
  release:
    types: [ published ]

permissions:
  contents: write

jobs:
  build:
    name: Build Linux Binary
    runs-on: ubuntu-latest

    outputs:
      version: ${{ steps.version.outputs.version }}
      binary_name: ${{ steps.build.outputs.binary_name }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.23.3'
          cache: true

      - name: Get version information
        id: version
        run: |
          if [ "${{ github.event_name }}" = "release" ]; then
            VERSION=${GITHUB_REF#refs/tags/}
          elif [ -n "${{ github.event.inputs.version }}" ]; then
            VERSION="${{ github.event.inputs.version }}"
          else
            VERSION=$(git describe --tags --always --dirty)
          fi
          echo "VERSION=$VERSION" >> $GITHUB_ENV
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "BUILD_TIME=$(date -u +"%Y-%m-%d %H:%M:%S")" >> $GITHUB_ENV
          echo "GIT_COMMIT=${GITHUB_SHA}" >> $GITHUB_ENV

      - name: Build binary
        id: build
        env:
          CGO_ENABLED: 0
          GOOS: linux
          GOARCH: amd64
        run: |
          BINARY_NAME_WITH_VERSION="ppanel-server-${{ env.VERSION }}-linux-amd64"
          echo "binary_name=$BINARY_NAME_WITH_VERSION" >> $GITHUB_OUTPUT

          go build \
            -ldflags "-s -w \
              -X 'github.com/perfect-panel/server/pkg/constant.Version=${{ env.VERSION }}' \
              -X 'github.com/perfect-panel/server/pkg/constant.BuildTime=${{ env.BUILD_TIME }}' \
              -X 'github.com/perfect-panel/server/pkg/constant.GitCommit=${{ env.GIT_COMMIT }}'" \
            -o "$BINARY_NAME_WITH_VERSION" \
            ./ppanel.go

      - name: Generate checksum
        run: |
          sha256sum "${{ steps.build.outputs.binary_name }}" > checksum.txt
          echo "Checksum: $(cat checksum.txt)"

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: ppanel-server-linux-amd64
          path: |
            ${{ steps.build.outputs.binary_name }}
            checksum.txt
          retention-days: 30

      - name: Create and Upload to GitHub Release
        if: github.event_name == 'release' || github.event.inputs.create_release == 'true' || startsWith(github.ref, 'refs/tags/')
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # Create release if it doesn't exist
          if [ "${{ github.event.inputs.create_release }}" = "true" ] && [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            echo "Creating release for ${{ env.VERSION }}"
            gh release create ${{ env.VERSION }} \
              --title "PPanel Server ${{ env.VERSION }}" \
              --notes "Release ${{ env.VERSION }}" \
              --latest
          elif [ "${{ github.event_name }}" = "push" ] && [ "${{ github.ref_type }}" = "tag" ]; then
            echo "Creating release for tag ${{ env.VERSION }}"
            gh release create ${{ env.VERSION }} \
              --title "PPanel Server ${{ env.VERSION }}" \
              --notes "Release ${{ env.VERSION }}" \
              --latest
          fi

          echo "Uploading binaries to release ${{ env.VERSION }}"
          gh release upload ${{ env.VERSION }} \
            ${{ steps.build.outputs.binary_name }} \
            checksum.txt

      - name: Create summary
        run: |
          echo "## 📦 Build Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Binary:** ${{ steps.build.outputs.binary_name }}" >> $GITHUB_STEP_SUMMARY
          echo "**Version:** ${{ env.VERSION }}" >> $GITHUB_STEP_SUMMARY
          echo "**Size:** $(du -h ${{ steps.build.outputs.binary_name }} | cut -f1)" >> $GITHUB_STEP_SUMMARY
          echo "**Checksum:** $(cat checksum.txt)" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### 📥 Download" >> $GITHUB_STEP_SUMMARY
          echo "Go to Actions → Artifacts → \`ppanel-server-linux-amd64\` to download" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### 🚀 Usage" >> $GITHUB_STEP_SUMMARY
          echo "1. Download the binary" >> $GITHUB_STEP_SUMMARY
          echo "2. Extract from tar.gz" >> $GITHUB_STEP_SUMMARY
          echo "3. Run: chmod +x ppanel-server-* && ./ppanel-server-* run --config etc/ppanel.yaml" >> $GITHUB_STEP_SUMMARY