name: Build and Push Docker Images

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

env:
  # Gitea Container Registry (self-hosted instance)
  REGISTRY: gitea.home-nas-ds.org
  # Repository path (format: owner/repo)
  IMAGE_NAME: alessio/data-coupler

jobs:
  build-linux:
    name: Build Linux Container
    runs-on: ubuntu-latest
    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: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: '9.0.x'

      - name: Generate version.json with MinVer
        run: |
          # Fetch all tags for MinVer to work correctly
          git fetch --tags --force
          
          # Build project to trigger MinVer (calcola versione automaticamente)
          cd Data_Coupler
          dotnet build -c Release /p:ContinuousIntegrationBuild=true
          
          # Extract version calculated by MinVer from build output
          VERSION=$(dotnet msbuild -getProperty:Version -p:ContinuousIntegrationBuild=true 2>/dev/null | tail -1)
          
          # Fallback if MinVer fails (no tags)
          if [ -z "$VERSION" ] || [ "$VERSION" = "0.0.0-alpha.0" ]; then
            echo "Warning: No git tags found. MinVer returned default. Using fallback."
            VERSION="2.3.2-alpha.0.$(git rev-list --count HEAD)"
          fi
          
          echo "MinVer calculated version: $VERSION"
          
          # Create version.json
          cat > wwwroot/version.json <<EOF
          {
            "version": "${VERSION}",
            "commitSha": "${GITHUB_SHA:0:7}",
            "branch": "${GITHUB_REF_NAME}",
            "buildDate": "$(date -u +"%Y-%m-%d %H:%M:%S UTC")",
            "buildEnvironment": "Gitea Actions"
          }
          EOF
          
          echo "Generated version.json:"
          cat wwwroot/version.json
          cd ..
        shell: bash

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

      - name: Debug - Check registry access
        run: |
          echo "Testing registry access..."
          curl -v https://gitea.home-nas-ds.org/v2/ || echo "Registry not accessible"
          echo "Registry: ${{ env.REGISTRY }}"
          echo "Image: ${{ env.IMAGE_NAME }}"
        continue-on-error: true

      - name: Debug - Verify secret is configured
        run: |
          if [ -z "${{ secrets.REGISTRY_TOKEN }}" ]; then
            echo "::error::REGISTRY_TOKEN secret is not configured or is empty!"
            exit 1
          else
            echo "REGISTRY_TOKEN secret is configured (length: ${#REGISTRY_TOKEN})"
          fi
        env:
          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}

      - name: Log in to Gitea Container Registry
        run: |
          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login ${{ env.REGISTRY }} -u alessio --password-stdin
        shell: bash

      - 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=${{ github.ref == 'refs/heads/main' }}
            type=raw,value=latest-linux,enable=${{ github.ref == 'refs/heads/main' }}
            # Development branch - no latest tag
            type=raw,value=development-latest,enable=${{ github.ref == 'refs/heads/development' }}
            type=raw,value=development-latest-linux,enable=${{ github.ref == 'refs/heads/development' }}
            # Dev branch
            type=raw,value=dev-latest,enable=${{ github.ref == 'refs/heads/dev' }}
            type=raw,value=dev-latest-linux,enable=${{ github.ref == 'refs/heads/dev' }}
            # Staging branch
            type=raw,value=staging-latest,enable=${{ github.ref == 'refs/heads/staging' }}
            type=raw,value=staging-latest-linux,enable=${{ 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 }}
          platforms: linux/amd64
          # Aumenta timeout per registry lenti
          build-args: |
            BUILDKIT_STEP_LOG_MAX_SIZE=50000000
          provenance: false
          sbom: false
        env:
          BUILDX_NO_DEFAULT_ATTESTATIONS: 1

      - name: Retry push on failure
        if: failure() && steps.build.outcome == 'failure'
        run: |
          echo "Retry push after 30 seconds..."
          sleep 30
          docker push $(echo "${{ steps.meta.outputs.tags }}" | head -n1)

  build-windows:
    name: Build Windows Container
    runs-on: windows
    permissions:
      contents: read
      packages: write
      
    steps:
      - name: Checkout repository with Git
        run: |
          git clone --branch ${{ github.ref_name }} https://alessio:%REGISTRY_TOKEN%@gitea.home-nas-ds.org/${{ github.repository }}.git .
          if not exist Dockerfile.windows (
            echo ERROR: Dockerfile.windows not found
            exit /b 1
          )
          echo SUCCESS: Repository cloned
        env:
          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
        shell: cmd

      - name: Setup .NET
        run: |
          # .NET should already be available on Windows runner
          dotnet --version
        shell: pwsh

      - name: Generate version.json with MinVer
        run: |
          # Fetch all tags for MinVer to work correctly
          git fetch --tags --force
          
          # Build project to trigger MinVer
          cd Data_Coupler
          dotnet build -c Release /p:ContinuousIntegrationBuild=true
          
          # Extract version calculated by MinVer
          $VERSION = dotnet msbuild -getProperty:Version -p:ContinuousIntegrationBuild=true 2>$null | Select-Object -Last 1
          
          # Fallback if MinVer fails (no tags)
          if ([string]::IsNullOrWhiteSpace($VERSION) -or $VERSION -eq "0.0.0-alpha.0") {
            Write-Host "Warning: No git tags found. MinVer returned default. Using fallback."
            $commitCount = git rev-list --count HEAD
            $VERSION = "2.3.2-alpha.0.$commitCount"
          }
          
          Write-Host "MinVer calculated version: $VERSION"
          
          $COMMIT_SHA = "${{ github.sha }}"
          $SHORT_SHA = $COMMIT_SHA.Substring(0, 7)
          $BRANCH = "${{ github.ref_name }}"
          $BUILD_DATE = (Get-Date).ToUniversalTime().ToString("yyyy-MM-dd HH:mm:ss UTC")
          
          # Create version.json
          $versionJson = @{
            version = $VERSION
            commitSha = $SHORT_SHA
            branch = $BRANCH
            buildDate = $BUILD_DATE
            buildEnvironment = "Gitea Actions"
          } | ConvertTo-Json
          
          $versionJson | Out-File -FilePath "wwwroot\version.json" -Encoding UTF8
          
          Write-Host "Generated version.json:"
          Get-Content "wwwroot\version.json"
          cd ..
        shell: pwsh

      - name: Debug - Verify files
        run: |
          echo Working directory:
          cd
          echo.
          echo Dockerfiles found:
          dir Dockerfile* /B 2>nul || echo No Dockerfiles found
        shell: cmd
        continue-on-error: true

      - name: Debug - Verify secret
        run: |
          if "${{ secrets.REGISTRY_TOKEN }}"=="" (
            echo ERROR: REGISTRY_TOKEN not configured!
            exit /b 1
          ) else (
            echo REGISTRY_TOKEN is configured
          )
        shell: cmd

      - name: Log in to Gitea Container Registry
        run: echo ${{ secrets.REGISTRY_TOKEN }} | docker login ${{ env.REGISTRY }} -u alessio --password-stdin
        shell: cmd

      - name: Build and push Windows Docker image
        run: |
          set IMAGE_LOWER=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          set BRANCH=${{ github.ref_name }}
          set SHA=${{ github.sha }}
          set SHORT_SHA=%SHA:~0,7%
          
          REM Determine tags based on branch
          set TAGS=
          if "%BRANCH%"=="main" (
            set TAGS=%IMAGE_LOWER%:latest-windows
            set TAGS=%TAGS% %IMAGE_LOWER%:main-windows-%SHORT_SHA%
          )
          if "%BRANCH%"=="development" (
            set TAGS=%IMAGE_LOWER%:latest-windows
            set TAGS=%TAGS% %IMAGE_LOWER%:development-latest-windows
            set TAGS=%TAGS% %IMAGE_LOWER%:development-windows-%SHORT_SHA%
          )
          if "%BRANCH%"=="staging" (
            set TAGS=%IMAGE_LOWER%:staging-latest-windows
            set TAGS=%TAGS% %IMAGE_LOWER%:staging-windows-%SHORT_SHA%
          )
          
          echo Building Windows Docker image...
          docker build -t temp-windows -f Dockerfile.windows .
          if errorlevel 1 (
            echo Build failed!
            exit /b 1
          )
          
          echo Tagging and pushing images...
          for %%t in (%TAGS%) do (
            echo Tagging: %%t
            docker tag temp-windows %%t
            echo Pushing: %%t
            docker push %%t
          )
          
          echo Cleaning up temporary image...
          docker rmi temp-windows
          
          echo Windows build completed successfully!
        shell: cmd

  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 Gitea Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: alessio
          password: ${{ secrets.REGISTRY_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-linux \
            ${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-linux \
            ${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-linux \
            ${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-linux \
            ${IMAGE_LOWER}:staging-latest-windows