name: Build and Push Docker Images

on:
  push:
    branches:
      - main
      - development
      - staging
  workflow_dispatch:
    inputs:
      force_build:
        description: 'Force build even without code changes'
        required: false
        default: false
        type: boolean

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-linux:
    name: Build Linux Container
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write
      attestations: write
      
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # Necessario per MinVer: deve percorrere tutta la storia Git per trovare i tag

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: '9.0.x'

      - name: Calcola versione con MinVer
        run: |
          git fetch --tags --force
          VERSION=$(cd Data_Coupler && dotnet msbuild -getProperty:Version -p:ContinuousIntegrationBuild=true 2>/dev/null | tail -1)
          if [ -z "$VERSION" ] || [ "$VERSION" = "0.0.0-alpha.0" ]; then
            echo "Warning: MinVer non ha trovato tag. Uso fallback."
            VERSION="2.3.2-alpha.0.$(git rev-list --count HEAD)"
          fi
          echo "Versione calcolata: $VERSION"
          echo "APP_VERSION=$VERSION" >> "$GITHUB_ENV"
        shell: bash

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # Tag based on branch - latest only for main
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
            # Development branch - no latest tag
            type=raw,value=development-latest,enable=${{ github.ref == 'refs/heads/development' }}
            # Dev branch
            type=raw,value=dev-latest,enable=${{ github.ref == 'refs/heads/dev' }}
            # Staging branch
            type=raw,value=staging-latest,enable=${{ github.ref == 'refs/heads/staging' }}
            # Tag with commit sha
            type=sha,prefix={{branch}}-,format=short
            # Tag with date
            type=raw,value={{branch}}-{{date 'YYYYMMDD-HHmmss'}}
          flavor: |
            latest=false

      - name: Build and push Linux Docker image
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: linux/amd64
          build-args: |
            APP_VERSION=${{ env.APP_VERSION }}

      - name: Generate artifact attestation
        if: github.event_name != 'pull_request'
        continue-on-error: true
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          subject-digest: ${{ steps.build.outputs.digest }}
          push-to-registry: true

  build-windows:
    name: Build Windows Container
    runs-on: windows-2022
    permissions:
      contents: read
      packages: write
      
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # Necessario per MinVer: deve percorrere tutta la storia Git per trovare i tag

      - name: Calcola versione con MinVer
        run: |
          git fetch --tags --force
          $VERSION = (cd Data_Coupler; dotnet msbuild -getProperty:Version -p:ContinuousIntegrationBuild=true 2>$null | Select-Object -Last 1)
          if ([string]::IsNullOrWhiteSpace($VERSION) -or $VERSION -eq "0.0.0-alpha.0") {
            Write-Host "Warning: MinVer non ha trovato tag. Uso fallback."
            $commitCount = git rev-list --count HEAD
            $VERSION = "2.3.2-alpha.0.$commitCount"
          }
          Write-Host "Versione calcolata: $VERSION"
          "APP_VERSION=$VERSION" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
        shell: pwsh

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # Tag based on branch with windows suffix
            type=raw,value=latest-windows,enable=${{ github.ref == 'refs/heads/main' }}
            type=raw,value=latest-windows,enable=${{ github.ref == 'refs/heads/development' }}
            type=raw,value=development-latest-windows,enable=${{ github.ref == 'refs/heads/development' }}
            type=raw,value=dev-latest-windows,enable=${{ github.ref == 'refs/heads/dev' }}
            type=raw,value=staging-latest-windows,enable=${{ github.ref == 'refs/heads/staging' }}
            # Tag with commit sha
            type=sha,prefix={{branch}}-windows-,format=short
            # Tag with date
            type=raw,value={{branch}}-windows-{{date 'YYYYMMDD-HHmmss'}}
          flavor: |
            latest=false

      - name: Build and push Windows Docker image
        run: |
          # Convert repository name to lowercase
          $imageName = "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}".ToLower()
          
          # Build with temporary tag
          docker build --build-arg "APP_VERSION=$env:APP_VERSION" -t "${imageName}:temp-windows" -f Dockerfile.windows .
          
          # Parse and push all tags
          $tags = "${{ steps.meta.outputs.tags }}" -split "`n"
          foreach ($tag in $tags) {
            $tag = $tag.Trim()
            if ($tag) {
              # Ensure tag is lowercase
              $tag = $tag.ToLower()
              Write-Host "Tagging and pushing: $tag"
              docker tag "${imageName}:temp-windows" $tag
              docker push $tag
            }
          }
          
          # Remove temporary tag
          docker rmi "${imageName}:temp-windows"
        shell: pwsh

  create-manifest:
    name: Create Multi-Platform Manifest
    runs-on: ubuntu-latest
    needs: [build-linux, build-windows]
    permissions:
      contents: read
      packages: write
      
    steps:
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create and push manifest for main branch
        if: github.ref == 'refs/heads/main'
        run: |
          IMAGE_LOWER=$(echo "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
          docker buildx imagetools create -t ${IMAGE_LOWER}:latest \
            ${IMAGE_LOWER}:latest \
            ${IMAGE_LOWER}:latest-windows

      - name: Create and push manifest for development branch
        if: github.ref == 'refs/heads/development'
        run: |
          IMAGE_LOWER=$(echo "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
          docker buildx imagetools create -t ${IMAGE_LOWER}:development-latest \
            ${IMAGE_LOWER}:development-latest \
            ${IMAGE_LOWER}:development-latest-windows

      - name: Create and push manifest for dev branch
        if: github.ref == 'refs/heads/dev'
        run: |
          IMAGE_LOWER=$(echo "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
          docker buildx imagetools create -t ${IMAGE_LOWER}:dev-latest \
            ${IMAGE_LOWER}:dev-latest \
            ${IMAGE_LOWER}:dev-latest-windows

      - name: Create and push manifest for staging branch
        if: github.ref == 'refs/heads/staging'
        run: |
          IMAGE_LOWER=$(echo "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
          docker buildx imagetools create -t ${IMAGE_LOWER}:staging-latest \
            ${IMAGE_LOWER}:staging-latest \
            ${IMAGE_LOWER}:staging-latest-windows