package build

import (
	"os"
	"os/exec"

	"github.com/qiniu/goc/v2/pkg/config"
	"github.com/qiniu/goc/v2/pkg/cover"
	"github.com/qiniu/goc/v2/pkg/log"
)

func NewInstall(args []string) *Build {
	return NewBuild(args)
}

// Install starts go install
//
// 1. copy project to temp,
// 2. inject cover variables and functions into the project,
// 3. install the project in temp.
func (b *Build) Install() {
	// 1. 拷贝至临时目录
	b.copyProjectToTmp()
	defer b.clean()

	log.Donef("project copied to temporary directory")
	// 2. inject cover vars
	cover.Inject()
	// 3. install in the temp project
	b.doInstallInTemp()
}

func (b *Build) doInstallInTemp() {
	log.StartWait("installing the injected project")

	goflags := config.GocConfig.Goflags

	pacakges := config.GocConfig.Packages

	goflags = append(goflags, pacakges...)

	args := []string{"install"}
	args = append(args, goflags...)
	// go 命令行由 go install [build flags] [packages] 组成
	cmd := exec.Command("go", args...)
	cmd.Dir = config.GocConfig.TmpWd
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr

	log.Infof("go install cmd is: %v, in path [%v]", cmd.Args, cmd.Dir)
	if err := cmd.Start(); err != nil {
		log.Fatalf("fail to execute go install: %v", err)
	}
	if err := cmd.Wait(); err != nil {
		log.Fatalf("fail to execute go install: %v", err)
	}

	// done
	log.StopWait()
	log.Donef("go install done")
}