name: Lint, Build, and Docker

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main, develop]

jobs:
  # ==============================================================================
  # Job 1: Format Check
  # ==============================================================================
  format:
    runs-on: docker
    container:
      image: rust:latest
    
    steps:
      - name: Install Node.js for checkout
        run: |
          apt-get update
          apt-get install -y curl gnupg
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs
      
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Install dependencies
        run: |
          apt-get update
          apt-get install -y pkg-config libssl-dev
          rustup component add rustfmt
      
      - name: Check formatting
        working-directory: ./backend
        run: cargo fmt --all -- --check

  # ==============================================================================
  # Job 2: Lint
  # ==============================================================================
  clippy:
    runs-on: docker
    container:
      image: rust:latest
    
    steps:
      - name: Install Node.js for checkout
        run: |
          apt-get update
          apt-get install -y curl gnupg
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs
      
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Install dependencies
        run: |
          apt-get update
          apt-get install -y pkg-config libssl-dev
          rustup component add clippy
      
      - name: Run Clippy
        working-directory: ./backend
        run: cargo clippy --all-targets --all-features

  # ==============================================================================
  # Job 3: Build - Depends on format and clippy
  # ==============================================================================
  build:
    runs-on: docker
    container:
      image: rust:latest
    needs: [format, clippy]
    
    steps:
      - name: Install Node.js for checkout
        run: |
          apt-get update
          apt-get install -y curl gnupg
          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
          apt-get install -y nodejs
      
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Install dependencies
        run: |
          apt-get update
          apt-get install -y pkg-config libssl-dev
      
      - name: Build release binary
        working-directory: ./backend
        run: cargo build --release --verbose

  # ==============================================================================
  # Job 4: Docker Build - Try accessing host Docker via DOCKER_HOST
  # ==============================================================================
  docker-build:
    runs-on: docker
    needs: [build]
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Try accessing Docker
        run: |
          echo "Checking Docker availability..."
          # Try various Docker host options
          if docker info >/dev/null 2>&1; then
            echo "✅ Docker accessible via default socket"
          elif docker -H unix:///var/run/docker.sock info >/dev/null 2>&1; then
            echo "✅ Docker accessible via /var/run/docker.sock"
            export DOCKER_HOST=unix:///var/run/docker.sock
          elif docker -H tcp://127.0.0.1:2375 info >/dev/null 2>&1; then
            echo "✅ Docker accessible via TCP localhost"
            export DOCKER_HOST=tcp://127.0.0.1:2375
          elif docker -H tcp://172.17.0.1:2375 info >/dev/null 2>&1; then
            echo "✅ Docker accessible via Docker bridge"
            export DOCKER_HOST=tcp://172.17.0.1:2375
          else
            echo "❌ Docker not accessible"
            echo "Available network interfaces:"
            ip addr show
            exit 1
          fi
      
      - name: Show Docker version
        run: docker version
      
      - name: Build Docker image
        working-directory: ./backend
        run: |
          docker build -f docker/Dockerfile -t normogen-backend:${{ github.sha }} -t normogen-backend:latest .
      
      - name: Show images
        run: docker images normogen-backend