name: Build and Deploy Darkroom

on:
  workflow_dispatch:
  pull_request:
    branches: [ main ]
    paths: [ 'darkroom/**' ]
  push:
    branches: [ main ]
    paths: [ 'darkroom/**' ]

jobs:
  build:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: darkroom

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

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@main
        with:
          logger: pretty

      - name: Setup Nix cache
        uses: DeterminateSystems/magic-nix-cache-action@main

      - name: Check flake
        run: nix flake check

      - name: Build Rust binary
        run: nix build .#darkroom

      - name: Build Docker image
        run: nix build .#darkroomImg

      - name: Load Docker image
        run: docker load < result

      - name: Test Docker image
        run: |
          # Start the container in the background
          docker run -d --name darkroom-test -p 8080:8080 darkroom:latest

          # Wait for the service to start
          sleep 10

          # Test the health endpoint
          curl -f http://localhost:8080/health || exit 1

          # Stop the test container
          docker stop darkroom-test
          docker rm darkroom-test

      - name: Save Docker image as artifact
        if: github.ref == 'refs/heads/main'
        run: docker save darkroom:latest | gzip > darkroom-image.tar.gz

      - name: Upload Docker image artifact
        if: github.ref == 'refs/heads/main'
        uses: actions/upload-artifact@v4
        with:
          name: darkroom-docker-image
          path: darkroom/darkroom-image.tar.gz
          retention-days: 1

  deploy:
    if: github.ref == 'refs/heads/main'
    needs: build
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: darkroom

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

      - name: Download Docker image artifact
        uses: actions/download-artifact@v4
        with:
          name: darkroom-docker-image
          path: darkroom/

      - name: Load Docker image
        run: docker load < darkroom-image.tar.gz

      - name: Tag for Fly.io
        run: docker tag darkroom:latest registry.fly.io/grain-darkroom:latest

      - name: Setup Fly CLI
        uses: superfly/flyctl-actions/setup-flyctl@master

      - name: Login to Fly.io registry
        run: flyctl auth docker
        env:
          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}

      - name: Push to Fly.io registry
        run: docker push registry.fly.io/grain-darkroom:latest

      - name: Deploy to Fly.io
        run: flyctl deploy --image registry.fly.io/grain-darkroom:latest
        env:
          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}