name: Daily Update Pipeline

on:
  schedule:
    # Runs every day at 3:00 AM UTC
    - cron: '0 3 * * *'
  workflow_dispatch: # Allows manual triggering
    inputs:
      skip_image_check:
        description: 'Skip image check and force build'
        required: false
        default: 'false'
        type: choice
        options:
        - 'true'
        - 'false'

jobs:
  get-mlflow-full-base-image-digest:
    if: github.event.inputs.skip_image_check != 'true'
    runs-on: ubuntu-latest
    outputs:
      base_image_digest: ${{ steps.mlflow-full.outputs.base_image_digest }}
      success: ${{ steps.mlflow-full.outputs.success }}
    steps:
    - name: Get MLflow-full base image digest
      id: mlflow-full
      env:
        CI_RUNNER_TOKEN: ${{ secrets.CI_RUNNER_TOKEN }}
      run: |
        # Configure Docker for insecure registry
        mkdir -p ~/.docker
        echo '{
          "auths": {},
          "insecure-registries": ["10.0.0.2:3000"]
        }' > ~/.docker/config.json
        
        # Login to internal registry
        echo "${{ secrets.CI_RUNNER_TOKEN }}" | docker login 10.0.0.2:3000 --username "${{ gitea.actor }}" --password-stdin

        # Pull and inspect the image
        if docker pull 10.0.0.2:3000/brian/mlflow-full:latest 2>/dev/null; then
          BASE_IMAGE_DIGEST=$(docker inspect 10.0.0.2:3000/brian/mlflow-full:latest | jq -r '.[0].Config.Labels["org.opencontainers.image.base.digest"] // empty')
          
          if [ -n "$BASE_IMAGE_DIGEST" ] && [ "$BASE_IMAGE_DIGEST" != "null" ]; then
            echo "base_image_digest=$BASE_IMAGE_DIGEST" >> $GITHUB_OUTPUT
            echo "success=true" >> $GITHUB_OUTPUT
            echo "Base image digest from MLflow-full image: $BASE_IMAGE_DIGEST"
          else
            echo "success=false" >> $GITHUB_OUTPUT
            echo "No base image digest label found"
          fi
        else
          echo "success=false" >> $GITHUB_OUTPUT
          echo "Failed to pull MLflow-full image - this might be the first run"
        fi
  get-mlflow-digest:
    runs-on: ubuntu-latest
    outputs:
      digest: ${{ steps.mlflow-base.outputs.digest }}
      success: ${{ steps.mlflow-base.outputs.success }}
    steps:
    - name: Get MLflow base image digest
      id: mlflow-base
      run: |
        MANIFEST=$(docker manifest inspect ghcr.io/mlflow/mlflow:latest 2>/dev/null || echo "{}")
        if [ "$MANIFEST" != "{}" ]; then
          DIGEST=$(echo "$MANIFEST" | jq -r '.manifests[]? | select(.platform.architecture == "amd64" and .platform.os == "linux") | .digest // empty')
          echo "digest=$DIGEST" >> $GITHUB_OUTPUT
          echo "success=true" >> $GITHUB_OUTPUT
          echo "Digest found for MLflow base image: $DIGEST"
        else
          echo "success=false" >> $GITHUB_OUTPUT
          echo "MLflow base image not found"
        fi
  decide-to-build:
    if: always()  # Run regardless of dependency status
    needs:
      - get-mlflow-full-base-image-digest
      - get-mlflow-digest
    runs-on: ubuntu-latest
    outputs:
      should_build: ${{ steps.decision.outputs.should_build }}
    steps:
    - name: Build decision
      id: decision
      run: |
        if [ "${{ github.event.inputs.skip_image_check }}" == "true" ]; then
          echo "Image check skipped, forcing build"
          echo "should_build=true" >> $GITHUB_OUTPUT
        elif [ "${{ steps.mlflow-base.outputs.success }}" == "true" ] && \
           [ "${{ steps.mlflow-full.outputs.success }}" == "true" ]; then
          echo "✅ Both MLflow base and MLflow-full images found"
          if [ "${{ steps.mlflow-base.outputs.digest }}" != "${{ steps.mlflow-full.outputs.base_image_digest }}" ]; then
            echo "Base image digest has changed"
            echo "should_build=true" >> $GITHUB_OUTPUT
          else
            echo "Base image digest is unchanged"
            echo "should_build=false" >> $GITHUB_OUTPUT
          fi
        elif [ "${{ steps.mlflow-base.outputs.success }}" != "true" ]; then
          echo "❌ MLflow base image not found"
          echo "should_build=false" >> $GITHUB_OUTPUT
        else
          echo "❌ MLflow-full image not found"
          echo "should_build=false" >> $GITHUB_OUTPUT
        fi
  build-and-publish:
    if: needs.decide-to-build.outputs.should_build == 'true'
    needs: 
      - get-mlflow-digest
      - decide-to-build
    runs-on: ubuntu-latest
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
      with:
        config-inline: |
          [registry."10.0.0.2:3000"]
            http = true
            insecure = true
    - name: Log in to Gitea Container Registry  
      run: |
        # Configure Docker to allow insecure registry for this session
        mkdir -p ~/.docker
        echo '{
          "auths": {},
          "insecure-registries": ["10.0.0.2:3000"]
        }' > ~/.docker/config.json
        
        # Login using direct docker command
        echo "${{ secrets.CI_RUNNER_TOKEN }}" | docker login 10.0.0.2:3000 --username "${{ gitea.actor }}" --password-stdin
    - name: Extract metadata
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: 10.0.0.2:3000/${{ gitea.repository_owner }}/${{ gitea.event.repository.name }}
        tags: |
          type=schedule,pattern={{date 'YYYYMMDD'}}
          type=raw,value=latest
        labels: |
          org.opencontainers.image.title=mlflow-full
          org.opencontainers.image.description=MLflow with PostgreSQL support
          org.opencontainers.image.authors=Brian Jensen
          org.opencontainers.image.vendor=Brian Jensen
          org.opencontainers.image.licenses=Apache-2.0
          org.opencontainers.image.base.name=ghcr.io/mlflow/mlflow:latest
          org.opencontainers.image.base.digest=${{ needs.get-mlflow-digest.outputs.digest }}
          maintainer=Brian Jensen
    - name: Build and push Docker image
      id: build-publish
      uses: docker/build-push-action@v5
      with:
        context: .
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
        cache-from: type=gha
        cache-to: type=gha,mode=max
    - name: Update deployment info
      run: |
        echo "Docker image built and pushed successfully at $(date)"
        echo "Image tags:"
        echo "${{ steps.meta.outputs.tags }}"
        echo "Image labels:"
        echo "${{ steps.meta.outputs.labels }}"