// Copyright 2025 WIT.COM Inc Licensed GPL 3.0

package forgepb

import (
	"os"
	"os/user"
	"time"

	"go.wit.com/lib/fhelp"
	"go.wit.com/lib/gui/shell"
	"go.wit.com/lib/protobuf/gitpb"
	"go.wit.com/log"
)

/* better syntax from gin
Default returns an Engine instance with the Logger and Recovery middleware already attached.
func Default(opts ...OptionFunc) *Engine {
	debugPrintWARNINGDefault()
	engine := New()
	engine.Use(Logger(), Recovery())
	return engine.With(opts...)
}
*/

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

	/*
		f.Machine = new(zoopb.Machine)
		if err := f.Machine.ConfigLoad(); err != nil {
			log.Log(WARN, "zoopb.ConfigLoad() failed", err)
		}
	*/
	if f.Config.Username == "" {
		usr, _ := user.Current()
		f.Config.Username = usr.Username
		f.SetConfigSave(true)
	}

	if f.Config.Xterm == "" {
		f.Config.Xterm = "xterm"
		f.Config.XtermArgv = append(f.Config.XtermArgv, "-bg")
		f.Config.XtermArgv = append(f.Config.XtermArgv, "black")
		f.Config.XtermArgv = append(f.Config.XtermArgv, "-fg")
		f.Config.XtermArgv = append(f.Config.XtermArgv, "white")
		f.SetConfigSave(true)
	}

	// f.Machine.InitWit()

	if f.hasFullScan {
		// duplicate time checking below. which one to keep?
		if f.FullScanAge() > time.Minute {
			log.Log(INFO, "forgepb.Scan()     skipping scan. been run a minute ago", f.FullScanAge())
			return f
		}
	}

	now := time.Now()
	start := f.Repos.Len()
	f.ScanGoSrc()
	f.FullScanRan()
	end := f.Repos.Len()
	if (end - start) == 0 {
		log.Log(INFO, "forgepb.Scan()     Scan did not find new git repositories. Total =", end)
		if f.FullScanAge() > time.Minute {
			f.rillUpdate(20, 10)
		}
	} else {
		log.Log(INFO, "forgepb.Scan()     Scan found", end-start, "new git repositories. Total =", end)
		f.rillUpdate(20, 10)
	}

	if f.configSave {
		// taking this out to debug Marshal() panic
		f.ConfigSave()
		f.configSave = false
	}
	log.Log(INFO, "update()           check took", shell.FormatDuration(time.Since(now)))
	return f
}

func (f *Forge) InitPB() {
	f.setenv()

	// load the ~/.config/forge/ config
	f.Config = new(ForgeConfigs)
	if err := f.Config.ConfigLoad(f.configDir); err != nil {
		log.Log(WARN, "forgepb.ConfigLoad() failed", err)
	}

	f.Repos = gitpb.NewRepos()
	f.Repos.ConfigLoad()
	if f.Repos.HasFullScan {
		f.hasFullScan = true
	}

	// init the Patchsets
	f.Patchsets = NewPatchsets()

	// todo: play with these / determine good values based on user's machine
	f.rillX = 10
	f.rillY = 20
}

func (f *Forge) InitMachine() {
	if f.Config.Username == "" {
		usr, _ := user.Current()
		f.Config.Username = usr.Username
	}
	f.hostname, _ = os.Hostname()
	// log.Info(hostname, err)
}

// only init's the protobuf. intended to not scan or change anything
func InitPB() *Forge {
	f := new(Forge)
	f.setenv()
	f.InitPB()
	return f
}

func (f *Forge) SetConfigSave(b bool) {
	f.configSave = b
}

// saves the config if there have been changes
func (f *Forge) Exit() {
	// log.Info("forge.configSave =", f.configSave)
	if f.configSave {
		f.ConfigSave()
	}
	// log.Info("forge.Exit() ok")
	os.Exit(0)
}

func RawInitPB() *Forge {
	f := new(Forge)
	f.RawInitPB()
	return f
}

func (f *Forge) RawInitPB() {
	f.InitPB()
}

// the first thing done is process any ENV settings
// try to NOT use the ENV settings anywhere but here
// all initial ENV settings should be stored in the forge struct
func (f *Forge) setenv() {
	f.once.Do(func() {
		if err := fhelp.ConfigureENV(); err != nil {
			log.Info("forge ConfigureENV() failed", err)
			os.Exit(-1)
		}
		f.configDir = os.Getenv("FORGE_CONFIG")
		f.goSrc = os.Getenv("FORGE_GOSRC")
		f.repoPB = os.Getenv("FORGE_REPOPB")
		f.forgeURL = os.Getenv("FORGE_URL")
		f.patchDir = os.Getenv("FORGE_PATCHDIR")
		if os.Getenv("FORGE_GOWORK") == "true" {
			f.goWork = true
		}
	})
}

func (f *Forge) GetForgeURL() string {
	return f.forgeURL
}

// set the URL for forge otherwise fallback to ENV or to forge.wit.com
func (f *Forge) SetForgeURL(url string) {
	if url == "" {
		url = os.Getenv("FORGE_URL")
	}
	if url == "" {
		url = "https://forge.wit.com/"
	}
	f.forgeURL = url
	os.Setenv("FORGE_URL", f.forgeURL)
	log.Info("Forge URL has been set to", f.forgeURL)
}