//go:build mage

// Magefile for ior targets: build, test, install.
package main

import (
	"fmt"
	"os"
	"path/filepath"

	"github.com/magefile/mage/mg"
	"github.com/magefile/mage/sh"
)

const binaryName = "ior"

// Default builds the project.
func Default() {
	mg.Deps(Build)
}

// Build compiles the binary.
func Build() error {
	return sh.RunV("go", "build", "-o", binaryName, "./cmd/ior")
}

// Test runs the full test suite.
func Test() error {
	return sh.RunV("go", "test", "./...")
}

// Install copies the binary into GOPATH/bin.
func Install() error {
	mg.Deps(Build)

	goPath := os.Getenv("GOPATH")
	if goPath == "" {
		home, err := os.UserHomeDir()
		if err != nil {
			return fmt.Errorf("resolve home directory: %w", err)
		}
		goPath = filepath.Join(home, "go")
	}

	binDir := filepath.Join(goPath, "bin")
	if err := os.MkdirAll(binDir, 0o755); err != nil {
		return fmt.Errorf("ensure %s: %w", binDir, err)
	}

	dest := filepath.Join(binDir, binaryName)
	return sh.RunV("cp", "-v", binaryName, dest)
}