name: Release

on:
  push:
    tags:
      - 'v*'  # Trigger on version tags like v1.0.0

permissions:
  contents: write
  packages: write

env:
  GO_VERSION: '1.25.0'
  ZIG_VERSION: '0.15.2'

jobs:
  prepare_rsync:
    name: Prepare rsync metadata
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.manifest.outputs.matrix }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Load rsync manifest
        id: manifest
        run: |
          MANIFEST=.github/rsync_manifest.json
          MATRIX=$(jq -c '
            . as $cfg
            | $cfg.platforms
            | to_entries
            | map({
                platform: .key,
                target: .value.target,
                "rsync-url": ($cfg.base_url + "/" + $cfg.version + "/" + .value.asset),
                "rsync-sha256": .value.sha256
              })
          ' "$MANIFEST")
          printf 'matrix={"include":%s}\n' "$MATRIX" >> "$GITHUB_OUTPUT"

  build-cli:
    name: Build CLI - ${{ matrix.platform }}
    needs: prepare_rsync
    runs-on: ubuntu-latest
    strategy:
      matrix: ${{ fromJson(needs.prepare_rsync.outputs.matrix) }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Set up Zig
        uses: goto-bus-stop/setup-zig@v2
        with:
          version: ${{ env.ZIG_VERSION }}

      - name: Download static rsync
        run: |
          mkdir -p cli/src/assets
          wget -O cli/src/assets/rsync_release.bin ${{ matrix.rsync-url }} || \
            curl -L -o cli/src/assets/rsync_release.bin ${{ matrix.rsync-url }}
          echo "${{ matrix.rsync-sha256 }}  cli/src/assets/rsync_release.bin" | sha256sum -c
          chmod +x cli/src/assets/rsync_release.bin
          ls -lh cli/src/assets/rsync_release.bin

      - name: Build CLI
        working-directory: cli
        run: |
          zig build-exe -OReleaseSmall -fstrip -target ${{ matrix.target }} \
            -femit-bin=zig-out/bin/ml src/main.zig
          ls -lh zig-out/bin/ml

      - name: Strip binary (Linux only)
        if: matrix.platform == 'linux-x86_64'
        working-directory: cli
        run: strip zig-out/bin/ml

      - name: Package binary
        run: |
          mkdir -p dist
          cp cli/zig-out/bin/ml dist/ml-${{ matrix.platform }}
          cd dist
          tar -czf ml-${{ matrix.platform }}.tar.gz ml-${{ matrix.platform }}
          sha256sum ml-${{ matrix.platform }}.tar.gz > ml-${{ matrix.platform }}.tar.gz.sha256

      - name: Upload build artifact
        uses: actions/upload-artifact@v4
        with:
          name: ml-${{ matrix.platform }}
          path: |
            dist/ml-${{ matrix.platform }}.tar.gz
            dist/ml-${{ matrix.platform }}.tar.gz.sha256

  build-go-backends:
    name: Build Go Backends
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: ${{ env.GO_VERSION }}

      - name: Build binaries
        run: |
          make cross-platform
          ls -lh dist/

      - name: Package binaries
        run: |
          cd dist
          for binary in api-server worker tui data_manager user_manager; do
            if [[ -f "${binary}" ]]; then
              tar -czf "fetch_ml_${binary}.tar.gz" "${binary}"
              sha256sum "fetch_ml_${binary}.tar.gz" > "fetch_ml_${binary}.tar.gz.sha256"
            fi
          done

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: go-backends
          path: |
            dist/*.tar.gz
            dist/*.sha256

  create-release:
    name: Create GitHub Release
    needs: [build-cli, build-go-backends]
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts

      - name: Prepare release assets
        run: |
          mkdir -p release
          # Copy CLI binaries
          cp artifacts/ml-*/ml-*.tar.gz* release/
          # Copy Go binaries
          cp artifacts/go-backends/*.tar.gz* release/
          
          # Generate combined checksums
          cd release
          sha256sum *.tar.gz > checksums.txt
          ls -lh

      - name: Create Release
        uses: softprops/action-gh-release@v2
        with:
          files: release/*
          body: |
            ## 🚀 Release ${{ github.ref_name }}
            
            ### CLI Binaries (Zero Dependencies)
            All CLI binaries include embedded static rsync for complete independence.
            
            - **`ml-linux-x86_64.tar.gz`** - Linux x86_64 (fully static, musl)
            - **`ml-macos-x86_64.tar.gz`** - macOS Intel
            - **`ml-macos-arm64.tar.gz`** - macOS Apple Silicon
            
            ### Go Backend Binaries
            - **`fetch_ml_api-server.tar.gz`** - API Server
            - **`fetch_ml_worker.tar.gz`** - Worker
            - **`fetch_ml_tui.tar.gz`** - Terminal UI
            - **`fetch_ml_data_manager.tar.gz`** - Data Manager
            - **`fetch_ml_user_manager.tar.gz`** - User Manager
            
            ### Installation
            ```bash
            # Download and extract
            tar -xzf ml-<platform>.tar.gz
            
            # Make executable and move to PATH
            chmod +x ml-<platform>
            sudo mv ml-<platform> /usr/local/bin/ml
            
            # Verify installation
            ml --help
            ```
            
            ### Checksums
            SHA256 checksums are provided in `checksums.txt` and individual `.sha256` files.
          generate_release_notes: true
          draft: false
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}