name: Go Format

on:
  workflow_call:
    inputs:
      go-version-file:
        description: "Path to go.mod for version resolution"
        type: string
        default: "go.mod"
      run-vet:
        description: "Also run go vet"
        type: boolean
        default: true

jobs:
  fmt:
    name: gofmt
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: ${{ inputs.go-version-file }}
          cache: true

      - name: Check formatting
        run: |
          unformatted=$(gofmt -l .)
          if [ -n "$unformatted" ]; then
            echo "::error::The following files are not gofmt-formatted:"
            echo "$unformatted"
            echo ""
            echo "Run: gofmt -w ."
            exit 1
          fi

  vet:
    name: go vet
    runs-on: ubuntu-latest
    needs: fmt
    if: ${{ inputs.run-vet }}
    steps:
      - uses: actions/checkout@v4
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: ${{ inputs.go-version-file }}
          cache: true

      - name: go vet
        run: go vet ./...