package main

import (
	"os"

	"go.wit.com/dev/alexflint/arg"
	"go.wit.com/lib/gui/shell"
	"go.wit.com/lib/protobuf/forgepb"
	"go.wit.com/lib/protobuf/gitpb"
	"go.wit.com/log"
)

// sent via -ldflags
var VERSION string
var BUILDTIME string

var pp *arg.Parser
var forge *forgepb.Forge

var workingRepo *gitpb.Repo

func main() {
	log.Info("go-clone version", VERSION, "built on", BUILDTIME)
	pp = arg.MustParse(&argv)

	// for very new users or users unfamilar with the command line, this may help them
	if argv.Repo == "help" || argv.Repo == "?" {
		pp.WriteHelp(os.Stdout)
		os.Exit(0)
	}
	if argv.Repo == "version" {
		log.Info(argv.Version())
		os.Exit(0)
	}

	// this package helps scan git repos
	forge = forgepb.Init()

	var err error
	// attempt to clone, returns *gitpb.Repo
	workingRepo, err = clone(argv.Repo)
	if err != nil {
		badExit(err)
	}
	if argv.Recursive {
		log.Info("STARTING RECURSIVE CLONE", workingRepo.GoPath)
		if err := recursiveClone(workingRepo); err != nil {
			badExit(err)
		}
	}
	autoWork()
	if argv.Build {
		if err := build(); err != nil {
			badExit(err)
		}
	}
	if argv.Install {
		// can only install binary or plugin go packages
		if workingRepo.RepoType() == "binary" || workingRepo.RepoType() == "plugin" {
			log.Info("install will probably fail", workingRepo.GoPath, "is", workingRepo.RepoType())
		}
		if err := forge.Install(workingRepo, nil); err != nil {
			log.Warn("INSTALL FAILED", workingRepo.GoPath, err)
			badExit(err)
		}
	}

	if argv.Pull {
		// run 'git pull' if argv --git-pull
		gitPull()
	}
	okExit("")
}

func okExit(thing string) {
	if thing != "" {
		log.Info(thing, "ok")
	}
	log.Info("Finished clone on", workingRepo.GetGoPath(), "ok")
	forge.ConfigSave()
	os.Exit(0)
}

func badExit(err error) {
	log.Info("Total repositories:", forge.Repos.Len())
	log.Info("Finished go-clone with error", err, forge.GetGoSrc())
	os.Exit(-1)
}

func gitPull() {
	log.Info("Total repositories:", forge.Repos.Len())
	log.Info("Going to run git pull in each one. TODO: use rill here")
	pull := []string{"git", "pull"}

	var trycount, errcount int
	repos := forge.Repos.SortByGoPath()
	for repos.Scan() {
		repo := repos.Next()
		if argv.DryRun {
			log.Info("git pull --dry-run", repo.GoPath)
			continue
		}
		log.Info("git pull:", repo.FullPath)
		trycount += 1
		log.Info("actually run: git pull:", repo.GoPath)
		if result := shell.PathRunRealtime(repo.FullPath, pull); result.Error != nil {
			log.Info("git pull error:", result.Error)
			errcount += 1
		}
	}
	log.Info("Total repositories:", forge.Repos.Len(), "Total attempted:", trycount, "Errors:", errcount)
}

func build() error {
	err := forge.Build(workingRepo, nil)
	pwd, _ := os.Getwd()
	if err == nil {
		log.Info("this totally worked", pwd)
		shell.RunEcho([]string{"ls", "-l"})
		log.Info("ran ls")
	} else {
		log.Info("this totally did not work", pwd)
		shell.RunEcho([]string{"ls", "-l"})
		log.Info("ran ls")
		badExit(err)
	}
	return err
}

func autoWork() {
	// remake the go.work file
	if argv.AutoWork {
		log.Info("About to re-create", forge.GetGoSrc()+"/go.work")
		shell.PathRun(forge.GetGoSrc(), []string{"mv", "go.work", "go.work.last"})
		forge.MakeGoWork()
		shell.PathRun(forge.GetGoSrc(), []string{"go", "work", "use"})
		log.Info("")
		log.Info("original go.work file saved as go.work.last")
		log.Info("")
		okExit("go.work create")
	}

}