package main

import (
	"fmt"
	"log"
	"os"
	"os/exec"
	"os/signal"
	"path/filepath"
	"strings"
	"syscall"

	"github.com/gogf/gf/v2/os/gfsnotify"
)

func notify(path string) {

	watcher, err := gfsnotify.New()
	if err != nil {
		panic(err)
	}
	defer watcher.Close()

	log.Println("文件监听启动")

	// service
	go func() {
		servicePath := filepath.Join(path, defaultGenServiceConfig.SrcFolder)
		watcher.Add(servicePath, func(event *gfsnotify.Event) {
			// 如果是goland ide 会先写入临时文件,文件名带有~
			if event.IsWrite() {
				// 不是go文件的全部过滤掉
				if filepath.Ext(event.Path) != ".go" {
					return
				}
				// 跳过logic.go的文件监听
				if filepath.Dir(event.Path) == servicePath {
					return
				}

				// 只更新对应的包
				split := strings.Split(event.Path, string(os.PathSeparator))

				defaultGenServiceConfig.Packages[0] = split[len(split)-2]
				log.Println(event)
				err := execCmd(defaultGenServiceConfig.GetArgs())
				if err != nil {
					log.Println(err)
				}

			}

		}, true)

	}()

	// ctrl
	go func() {
		ctrlPath := filepath.Join(path, defaultGenCtrlConfig.SrcFolder)
		watcher.Add(ctrlPath, func(event *gfsnotify.Event) {
			// 如果是goland ide 会先写入临时文件,文件名带有~
			if event.IsWrite() {
				// 不是go文件的全部过滤掉
				if filepath.Ext(event.Path) != ".go" {
					return
				}
				// 去掉最后两个路径，判断是否和ctrlPath相同
				// 例如 example\api\hello\hello.go
				// 去掉之后变成example\api,这个不用监听
				splitPath := strings.Split(event.Path, string(filepath.Separator))

				splitPath = splitPath[:len(splitPath)-2]
				if ctrlPath == strings.Join(splitPath, string(filepath.Separator)) {
					return
				}

				log.Println(event)
				err := execCmd(defaultGenCtrlConfig.GetArgs())
				if err != nil {
					log.Println(err)
				}
			}

		}, true)

	}()

	// Add a path.
	exit := make(chan os.Signal, 1)
	signal.Notify(exit, syscall.SIGINT, syscall.SIGTERM)
	<-exit
	log.Println("监听到退出命令")

}

//var debugPath = `C:\\Users\\xxx\\Desktop`

func execCmd(args []string) error {

	var buf strings.Builder
	command := exec.Command("gf", args...)
	log.Println("执行命令: ", command.Args, len(command.Args))
	//command.Dir = debugPath
	command.Stdout = &buf
	err := command.Run()
	if err != nil {
		return fmt.Errorf("运行命令出错: %s  args:%v", err, args)
	}
	fmt.Print(buf.String())

	return nil
}