package errcode

import (
	"admin/lib/gofmt"
	"fmt"
	"log"
	"os"
	"path/filepath"
	"text/template"
)

type ErrCode struct {
	Name    string
	Value   int
	Comment string
}

type ErrCodeList struct {
	List []*ErrCode
}

var tpl = `
// Code generated by generator. DO NOT EDIT.
package errcode

import (
	"fmt"
)

func GetErrCodeContent(code int) string {
switch code {
{{- range .List }}
case {{ .Name }}:
	return "{{ .Comment -}}"
{{- end }}
default:
	return fmt.Sprintf("错误码%v没有找到文本内容", code)
}
}
`

func renderFile(data any, templateContent, filePath string) error {
	dir := filepath.Dir(filePath)
	if dir != "" {
		_ = os.MkdirAll(dir, os.ModePerm)
	}
	tmpl, err := template.New("client").Parse(templateContent)
	if err != nil {
		return fmt.Errorf("create template for file:%v error:%v", filePath, err)
	}
	file, err := os.OpenFile(filePath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666)
	if err != nil {
		return fmt.Errorf("open file %v error:%v", filePath, err)
	}
	defer file.Close()
	err = tmpl.Execute(file, data)
	if err != nil {
		return fmt.Errorf("execute template for file:%v error:%v", filePath, err)
	}
	log.Printf("write content file [%v] ok.", filePath)
	gofmt.Go(filePath)
	return nil
}

func must(err error) {
	if err != nil {
		panic(err)
	}
}