// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is governed by the GPL 3.0

package main

import (
	"fmt"
	"os"
	"path/filepath"
	"strings"

	"go.wit.com/dev/alexflint/arg"
	"go.wit.com/gui"
	"go.wit.com/lib/config"
	"go.wit.com/lib/debugger"
	"go.wit.com/lib/env"
	"go.wit.com/lib/fhelp"
	"go.wit.com/lib/protobuf/argvpb"
	"go.wit.com/log"
)

// sent via -ldflags // is there a better way?
var VERSION string
var BUILDTIME string

// used for shell auto completion
var APPNAME string = "forge"

func (args) InitGui() error {
	// panic("got here")
	arg.Register(&gui.ArgvGui)
	// me.gui = gui.PreInit()
	me.myGui = fhelp.Gui()
	return nil
}

func (args) Exit() {
	gui.UnloadToolkits()
	if env.Verbose() {
		log.Info("argv.Exit() called", APPNAME+".Exit() because env.Verbose() == true")
	}
	// remove this from the template for your app (or make one for youself if you need it)
	forgeExit() // custom forge shutdown function
}

func (args) MustParse() error {
	me.pp = arg.MustParse(&argv)
	return nil
}

func (a args) Description() string {
	// doHelp()

	return `
forge -- a tool to manage lots of git repos. forge includes a GUI and TUI.

	forge only executes the 'git' command. Everything it does, you can run by hand with 'git'.

	Orginally written to maintain the +50 GO git repositories for the WIT Private Cloud
`
}

// arg.Register(&argGui)
// log.Info("ArgvGui() started")
func (args) ArgvGui() error {
	me.myGui = fhelp.Gui() // adds the GUI package argv support
	me.origGui = gui.New()
	return nil
}

func (args) ArgvDebugger() bool {
	debugger.InitDebugger()
	// me.myGui = gui.Init()
	return true
}

func (args) Examples() string {
	var out string
	out += "forge show            # show the state of all your repos\n"
	out += "forge normal          # the defaults for 'normal' forge distributed development\n"
	out += "                      # it will makes a user branch in every git repo\n"
	out += "forge clean           # removes changes forge might have made\n"
	out += "                      # purges all untracked git files, etc\n"
	out += "forge pull --force    # 'git pull' on all repos\n"
	out += "forge commit --al     # 'git commit' in every dirty repo\n"
	out += "forge merge --all     # 'git merge' all patches to devel & master\n"
	out += "forge add             # scan your current directory for all git repos\n"
	return out
}

// matches
func (c CleanCmd) Match(partial string) []string {
	// return repos here
	return []string{"go.wit.com/apps/forge", "go.wit.com/apps/virtigo"}
}

// sends the strings to bash or zsh that will be your options
func (a args) DoAutoComplete() error {
	var err error
	if me.pp == nil {
		me.pp, err = arg.ParseFlagsArgv(&argv)
		if err != nil {
			fmt.Fprintf(argvpb.Stderr, "returned from parseFlagsArgv(%v)\n", err)
		}
	}
	if argvpb.PB.IsMatch("cache") {
		matches, _ := matchCacheFiles()
		fmt.Fprintf(argvpb.Stdout, matches)
		return nil
	}
	if argvpb.PB.IsMatch("mode.--config") {
		matches, _ := matchModeDirs()
		fmt.Fprintf(argvpb.Stdout, matches)
		return nil
	}
	if argvpb.PB.IsMatch("mode") {
		err = me.pp.WriteHelpForAutocomplete("", "mode")
		matches := []string{"jwc", "false"}
		fmt.Fprintf(argvpb.Stdout, " "+strings.Join(matches, " "))
		return nil
	}
	if argvpb.PB.GetCmd() == "" {
		// these are base autocomplete strings
		matches := []string{"clean", "commit", "merge", "patch", "normal", "pull", "rebuild", "generate", "config", "cache"}
		matches = append(matches, "show", "add", "fixer", "dev", "verify", "mode", "gui", "whatchanged")
		matches = append(matches, "--version", "--force", "--all", "--verbose")
		fmt.Fprintf(argvpb.Stdout, strings.Join(matches, " "))
		return nil
	}
	err = me.pp.WriteHelpForAutocomplete(argvpb.PB.Partial, argvpb.PB.Real...)
	if err != nil {
		fmt.Fprintf(argvpb.Stderr, "returned from WriteHelpForAutocomplete() pb.Real(%v)\n", argvpb.PB.Real)
		fmt.Fprintf(argvpb.Stderr, "returned from WriteHelpForAutocomplete(%v)\n", err)
	}
	return err
}

func matchModeDirs() (string, error) {
	configDir, _ := os.UserConfigDir()
	globPattern := filepath.Join(configDir, "forge", "*")
	files, err := filepath.Glob(globPattern)
	var match string
	for _, file := range files {
		if config.IsDir(file) {
			_, base := filepath.Split(file)
			match += base + " "
		}
	}
	// log.Info("glob:", globPattern, "matchdirs:", match)
	return match, err
}

func matchCacheFiles() (string, error) {
	configDir, _ := os.UserCacheDir()
	globPattern := filepath.Join(configDir, "forge", "repos*.pb")
	files, err := filepath.Glob(globPattern)
	match := "all golang homedir"
	for _, file := range files {
		if config.IsDir(file) {
			_, base := filepath.Split(file)
			match += base + " "
		}
	}
	// log.Info("glob:", globPattern, "matchdirs:", match)
	return match, err
}