name: Build and Push Docker Images

on:
  push:
    branches:
      - main
    tags:
      - 'v*.*.*'

env:
  REGISTRY: git.benoitsz.com
  IMAGE_BACKEND: audio-classifier-backend
  IMAGE_FRONTEND: audio-classifier-frontend

jobs:
  build-frontend:
    name: Build Frontend Image
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Download Essentia models (for context)
        run: |
          mkdir -p backend/models
          cd backend/models

          # Download models (needed because frontend build context is root)
          curl -L -o discogs-effnet-bs64-1.pb \
            https://essentia.upf.edu/models/feature-extractors/discogs-effnet/discogs-effnet-bs64-1.pb
          curl -L -o genre_discogs400-discogs-effnet-1.pb \
            https://essentia.upf.edu/models/classification-heads/genre_discogs400/genre_discogs400-discogs-effnet-1.pb
          curl -L -o genre_discogs400-discogs-effnet-1.json \
            https://essentia.upf.edu/models/classification-heads/genre_discogs400/genre_discogs400-discogs-effnet-1.json
          curl -L -o mtg_jamendo_moodtheme-discogs-effnet-1.pb \
            https://essentia.upf.edu/models/classification-heads/mtg_jamendo_moodtheme/mtg_jamendo_moodtheme-discogs-effnet-1.pb
          curl -L -o mtg_jamendo_instrument-discogs-effnet-1.pb \
            https://essentia.upf.edu/models/classification-heads/mtg_jamendo_instrument/mtg_jamendo_instrument-discogs-effnet-1.pb
          curl -L -o mtg_jamendo_genre-discogs-effnet-1.pb \
            https://essentia.upf.edu/models/classification-heads/mtg_jamendo_genre/mtg_jamendo_genre-discogs-effnet-1.pb

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

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

      - name: Determine version
        id: version
        run: |
          if [[ "${{ gitea.ref }}" == refs/tags/v* ]]; then
            echo "VERSION=${GITEA_REF#refs/tags/}" >> $GITHUB_OUTPUT
          else
            echo "VERSION=dev-$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
          fi

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ gitea.repository_owner }}/${{ env.IMAGE_FRONTEND }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=latest,enable=${{ startsWith(gitea.ref, 'refs/tags/v') }}
            type=raw,value=dev,enable=${{ gitea.ref == 'refs/heads/main' }}
            type=sha,prefix=dev-,format=short,enable=${{ gitea.ref == 'refs/heads/main' }}

      - name: Build and push frontend
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./frontend/Dockerfile
          push: true
          build-args: |
            VERSION=${{ steps.version.outputs.VERSION }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ gitea.repository_owner }}/${{ env.IMAGE_FRONTEND }}:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ gitea.repository_owner }}/${{ env.IMAGE_FRONTEND }}:buildcache,mode=max