// Copyright 2025 WIT.COM Inc Licensed GPL 3.0

package forgepb

import (
	"errors"
	"os"

	"go.wit.com/lib/ENV"
	"go.wit.com/lib/config"
	"go.wit.com/lib/protobuf/argvpb"
	"go.wit.com/log"
)

// returns err1 || err2
func (f *Forge) ConfigSave() error {
	if f.Config == nil {
		return log.Errorf("forge.Config == nil")
	}

	if !config.HasChanged("forge") {
		return nil
	}

	// only let forge edit & save the config files
	// inforce this in lib config?
	if !(argvpb.GetAPPNAME() == "forge" || argvpb.GetAPPNAME() == "guireleaser") {
		log.Info("This is not forge")
		return log.Errorf("Only forge can save the forge config file")
	}

	// migrate from the old gopath to "namespace"
	for fc := range f.Config.IterAll() {
		if fc.Namespace != "" {
			continue
		}
		if fc.Namespace != fc.GoPath {
			fc.Namespace = fc.GoPath
		}
		// todo: deprecate this
		// fc.GoPath = "" // I want to do this but it might be a bad idea at this point
	}
	log.Info("Okay, this is", argvpb.GetAPPNAME())

	if err := f.Config.ConfigSave(); err != nil {
		log.Info("forge.Config.ConfigSave() error", err)
		return err
	}
	return nil
}

func (f *Forge) SaveRepos() error {
	if ENV.Verbose() {
		return f.Repos.SaveVerbose()
	}
	return f.Repos.Save()
}

func (f *Forge) SetMode(newmode ForgeMode) error {
	if f.mode == newmode {
		// nothing changed
		return nil
	}
	f.mode = newmode
	err := ENV.Set("mode", newmode.String())
	if err != nil {
		panic("config.Set() doesn't work")
	}
	err = ENV.Save()
	if err != nil {
		panic("config.Save() doesn't work")
	}
	return err
}

// functions to import and export the protobuf
// data to and from config files

// write to ~/.config/forge/
func (cfg *ForgeConfigs) ConfigSave() error {
	var header string
	header += "\n"
	header += "# the forge config file\n"
	header += "# You can customize things like:\n"
	header += "#\n"
	header += "#    * which repos you have write access to\n"
	header += "#    * custom branch names for 'master', 'devel' and 'user'\n"
	header += "#    * 'favorites' so you can remember which things you like\n"
	header += "#    * sometimes protobuf TEXT can fail so as a backup this also creates a .json file\n"
	header += "#\n"
	header += "\n"
	return config.ConfigSaveWithHeader(cfg, header)
}

func loadStdConfig() (*ForgeConfigs, error) {
	cfg := NewForgeConfigs()
	err := cfg.loadConfig()

	// todo: do something here with this error?
	// right now, handled in forge
	// todo: move the code from forge here
	if errors.Is(err, os.ErrNotExist) {
		log.Info("no files existed err=", err)
	} else if errors.Is(err, config.ErrEmpty) {
		log.Info("files were blank err=", err)
	} else if errors.Is(err, config.ErrMarshal) {
		log.Info("files existed and could not be Marshalled() err=", err)
	} else if err == nil {
		// do nothing. probably shoulda started with this
	} else {
		log.Info("some other bad problem err=", err)
	}
	return cfg, nil
}

func makeDefaultConfig() (*ForgeConfigs, error) {
	cfg := NewForgeConfigs()
	// Get fullpath to ~/.config/forge/forge.text
	cfg.loadConfig()

	cfg.addSampleConfigs()
	ENV.PrintTable()
	var err error
	if err = cfg.SaveVerbose(); err != nil {
		log.Info("config save error:", err)
	}
	return cfg, err
}

// first time user. add go.wit.com as an example
func (cfg *ForgeConfigs) addSampleConfigs() {
	newc := new(ForgeConfig)
	newc.GoPath = "go.wit.com"
	newc.Writable = true
	newc.Directory = true
	cfg.Append(newc)

	newc = new(ForgeConfig)
	newc.GoPath = "priv.wit.com/corp"
	newc.Writable = true
	newc.Private = true
	newc.Directory = true
	cfg.Append(newc)
}