name: CI

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

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    strategy:
      matrix:
        go-version: ['1.21', '1.22', '1.23']
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
    
    - name: Set up Go
      uses: actions/setup-go@v5
      with:
        go-version: ${{ matrix.go-version }}
    
    - name: Cache Go modules
      uses: actions/cache@v4
      with:
        path: ~/go/pkg/mod
        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
        restore-keys: |
          ${{ runner.os }}-go-
    
    - name: Download dependencies
      run: go mod download
    
    - name: Run tests
      run: go test -v -race -coverprofile=coverage.txt -covermode=atomic ./...
    
    - name: Upload coverage
      uses: codecov/codecov-action@v4
      with:
        file: ./coverage.txt
        flags: unittests
        name: codecov-umbrella

  lint:
    name: Lint
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
    
    - name: Set up Go
      uses: actions/setup-go@v5
      with:
        go-version: '1.23'
    
    - name: Run golangci-lint
      uses: golangci/golangci-lint-action@v4
      with:
        version: latest
        args: --timeout=5m

  build:
    name: Build
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
    
    - name: Set up Go
      uses: actions/setup-go@v5
      with:
        go-version: '1.23'
    
    - name: Build
      run: go build -v ./...
    
    - name: Build examples
      run: |
        for dir in examples/*/; do
          echo "Building $dir"
          (cd "$dir" && go build -v .)
        done