name: Build and Push RunPod Docker Image

on:
  push:
    branches:
      - main
    tags:
      - 'v*.*.*'
  pull_request:
    branches:
      - main
  workflow_dispatch:
    inputs:
      tag:
        description: 'Custom tag for the image'
        required: false
        default: 'manual'

env:
  REGISTRY: dev.pivoine.art
  IMAGE_NAME: valknar/runpod-ai-orchestrator

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          platforms: linux/amd64

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

      - name: Extract metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # Tag as 'latest' for main branch
            type=raw,value=latest,enable={{is_default_branch}}
            # Tag with branch name
            type=ref,event=branch
            # Tag with PR number
            type=ref,event=pr
            # Tag with git tag (semver)
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            # Tag with commit SHA
            type=sha,prefix={{branch}}-
            # Custom tag from workflow_dispatch
            type=raw,value=${{ gitea.event.inputs.tag }},enable=${{ gitea.event_name == 'workflow_dispatch' }}
          labels: |
            org.opencontainers.image.title=RunPod AI Orchestrator
            org.opencontainers.image.description=Minimal Docker template for RunPod deployment with ComfyUI + vLLM orchestration, Supervisor process management, and Tailscale VPN integration
            org.opencontainers.image.vendor=valknar
            org.opencontainers.image.source=https://dev.pivoine.art/${{ gitea.repository }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          push: ${{ gitea.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache,mode=max

      - name: Generate image digest
        if: gitea.event_name != 'pull_request'
        run: |
          echo "### Docker Image Published :rocket:" >> $GITEA_STEP_SUMMARY
          echo "" >> $GITEA_STEP_SUMMARY
          echo "**Registry:** \`${{ env.REGISTRY }}\`" >> $GITEA_STEP_SUMMARY
          echo "**Image:** \`${{ env.IMAGE_NAME }}\`" >> $GITEA_STEP_SUMMARY
          echo "" >> $GITEA_STEP_SUMMARY
          echo "**Tags:**" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`" >> $GITEA_STEP_SUMMARY
          echo "${{ steps.meta.outputs.tags }}" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`" >> $GITEA_STEP_SUMMARY
          echo "" >> $GITEA_STEP_SUMMARY
          echo "**Pull command:**" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`bash" >> $GITEA_STEP_SUMMARY
          echo "docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`" >> $GITEA_STEP_SUMMARY
          echo "" >> $GITEA_STEP_SUMMARY
          echo "**Use in RunPod template:**" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`" >> $GITEA_STEP_SUMMARY
          echo "Container Image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`" >> $GITEA_STEP_SUMMARY

      - name: PR Comment - Image built but not pushed
        if: gitea.event_name == 'pull_request'
        run: |
          echo "### Docker Image Built Successfully :white_check_mark:" >> $GITEA_STEP_SUMMARY
          echo "" >> $GITEA_STEP_SUMMARY
          echo "Image was built successfully but **not pushed** (PR builds are not published)." >> $GITEA_STEP_SUMMARY
          echo "" >> $GITEA_STEP_SUMMARY
          echo "**Would be tagged as:**" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`" >> $GITEA_STEP_SUMMARY
          echo "${{ steps.meta.outputs.tags }}" >> $GITEA_STEP_SUMMARY
          echo "\`\`\`" >> $GITEA_STEP_SUMMARY
