package forgepb

import (
	"os"
	"path/filepath"

	"go.wit.com/lib/protobuf/gitpb"
	"go.wit.com/lib/protobuf/zoopb"
	"go.wit.com/log"
)

func Init() *Forge {
	f := new(Forge)

	// TODO: rethink this but it works for now
	gosrc := os.Getenv("FORGE_GOSRC")
	if gosrc == "" {
		goSrcDir, err := f.findGoSrc()
		if err != nil {
			log.Warn("forge init() findGoSrc()", err)
			os.Exit(-1)
		}
		os.Setenv("FORGE_GOSRC", goSrcDir)
	}
	f.goSrc = os.Getenv("FORGE_GOSRC")

	// also rethink this, but maybe this is the right thing to do
	if os.Getenv("FORGE_CONFIG") == "" {
		homeDir, _ := os.UserHomeDir()
		fullpath := filepath.Join(homeDir, ".config/forge")
		os.Setenv("FORGE_CONFIG", fullpath)
	}

	// check again for go.work // user could have a go.work file in ~/go/src
	if f.goWorkExists() {
		f.goWork = true
	}

	// print out the settings that will be used
	log.Info("forgepbb.Init()    FORGE_CONFIG", os.Getenv("FORGE_CONFIG"))
	log.Info("forgepbb.Init()    FORGE_GOSRC ", os.Getenv("FORGE_GOSRC"), "f.goWork =", f.IsGoWork())

	// cache.go has Do()
	// f.initOnce.Do(f.initWork)

	f.Config = new(ForgeConfigs)

	// load the ~/.config/forge/ config
	if err := f.Config.ConfigLoad(); err != nil {
		log.Warn("forgepb.ConfigLoad() failed", err)
		os.Exit(-1)
	}

	f.Repos = new(gitpb.Repos)
	f.Repos.ConfigLoad()
	f.Machine = new(zoopb.Machine)

	if err := f.Machine.ConfigLoad(); err != nil {
		log.Warn("zoopb.ConfigLoad() failed", err)
		os.Exit(-1)
	}
	f.Machine.InitWit()

	start := f.Repos.Len()
	f.ScanGoSrc()
	end := f.Repos.Len()
	if (end - start) == 0 {
		log.Info("Scan of", f.GetGoSrc(), "did not find new git repositories")
	} else {
		log.Info("Scan of", f.GetGoSrc(), "Found", end-start, "new git repositories")
	}
	return f
}