name: Build Gateway

on:
  workflow_dispatch:
  push:
    branches:
      - master
    paths:
      - 'FictionArchive.Service.*/**'
      - 'FictionArchive.Common/**'
      - 'FictionArchive.Service.Shared/**'
      - 'FictionArchive.API/**'
  pull_request:
    branches:
      - master
    paths:
      - 'FictionArchive.Service.*/**'
      - 'FictionArchive.Common/**'
      - 'FictionArchive.Service.Shared/**'
      - 'FictionArchive.API/**'

env:
  REGISTRY: ${{ gitea.server_url }}
  IMAGE_NAME: ${{ gitea.repository_owner }}/fictionarchive-api

jobs:
  build-subgraphs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        service:
          - name: novel-service
            project: FictionArchive.Service.NovelService
            subgraph: Novel
          - name: translation-service
            project: FictionArchive.Service.TranslationService
            subgraph: Translation
          - name: scheduler-service
            project: FictionArchive.Service.SchedulerService
            subgraph: Scheduler
          - name: user-service
            project: FictionArchive.Service.UserService
            subgraph: User
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: '8.0.x'

      - name: Install Fusion CLI
        run: dotnet tool install -g HotChocolate.Fusion.CommandLine
        
      - name: Add .NET tools to PATH
        run: echo "$HOME/.dotnet/tools" >> $GITHUB_PATH

      - name: Restore dependencies
        run: dotnet restore ${{ matrix.service.project }}/${{ matrix.service.project }}.csproj

      - name: Build
        run: dotnet build ${{ matrix.service.project }}/${{ matrix.service.project }}.csproj -c Release --no-restore

      - name: Export schema
        run: |
          dotnet run -c Release --no-launch-profile \
            --project ${{ matrix.service.project }}/${{ matrix.service.project }}.csproj \
            -- schema export --output schema.graphql

      - name: Pack subgraph
        run: fusion subgraph pack -w ${{ matrix.service.project }}

      - name: Upload subgraph package
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.service.name }}-subgraph
          path: ${{ matrix.service.project }}/*.fsp
          retention-days: 30

  build-gateway:
    runs-on: ubuntu-latest
    needs: build-subgraphs
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: '8.0.x'

      - name: Install Fusion CLI
        run: dotnet tool install -g HotChocolate.Fusion.CommandLine

      - name: Create subgraphs directory
        run: mkdir -p subgraphs

      - name: Download Novel Service subgraph
        uses: actions/download-artifact@v4
        with:
          name: novel-service-subgraph
          path: subgraphs/novel

      - name: Download Translation Service subgraph
        uses: actions/download-artifact@v4
        with:
          name: translation-service-subgraph
          path: subgraphs/translation

      - name: Download Scheduler Service subgraph
        uses: actions/download-artifact@v4
        with:
          name: scheduler-service-subgraph
          path: subgraphs/scheduler

      - name: Download User Service subgraph
        uses: actions/download-artifact@v4
        with:
          name: user-service-subgraph
          path: subgraphs/user

      - name: Download File Service subgraph
        uses: actions/download-artifact@v4
        with:
          name: file-service-subgraph
          path: subgraphs/file

      - name: Configure subgraph URLs for Docker
        run: |
          for fsp in subgraphs/*/*.fsp; do
            if [ -f "$fsp" ]; then
              dir=$(dirname "$fsp")
              name=$(basename "$dir")
              url="http://${name}-service:8080/graphql"
              echo "Setting $name URL to $url"
              fusion subgraph config set http --url "$url" -c "$fsp"
            fi
          done

      - name: Compose gateway
        run: |
          cd FictionArchive.API
          rm -f gateway.fgp
          for fsp in ../subgraphs/*/*.fsp; do
            if [ -f "$fsp" ]; then
              echo "Composing: $fsp"
              fusion compose -p gateway.fgp -s "$fsp"
            fi
          done

      - name: Restore dependencies
        run: dotnet restore FictionArchive.API/FictionArchive.API.csproj

      - name: Build gateway
        run: dotnet build FictionArchive.API/FictionArchive.API.csproj -c Release --no-restore -p:SkipFusionBuild=true

      - name: Run tests
        run: dotnet test FictionArchive.sln -c Release --no-build --verbosity normal
        continue-on-error: true

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

      - name: Extract registry hostname
        id: registry
        run: echo "HOST=$(echo '${{ gitea.server_url }}' | sed 's|https\?://||')" >> $GITHUB_OUTPUT

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

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: FictionArchive.API/Dockerfile
          push: true
          tags: |
            ${{ steps.registry.outputs.HOST }}/${{ env.IMAGE_NAME }}:latest
            ${{ steps.registry.outputs.HOST }}/${{ env.IMAGE_NAME }}:${{ gitea.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max