package common

import (
	"fmt"
	"log/slog"
)

import (
	"github.com/gin-gonic/gin"
	"github.com/nicksnyder/go-i18n/v2/i18n"
	"github.com/spf13/cast"
)

const OKCode = "0x000000"
const InvalidTokenCode = "0x010101"
const InvalidRoleCode = "0x010102"

type ResDesc string

var (
	// 全局
	Success           ResDesc = "ErrCode_Success"
	InvalidTokenError ResDesc = "ErrCode_InvalidTokenError"
	InvalidRoleError  ResDesc = "ErrCode_InvalidRoleError"
	InvalidParamError ResDesc = "ErrCode_InvalidParamError"
	NotExistsError    ResDesc = "ErrCode_NotExistsError"
	NotSupportError   ResDesc = "ErrCode_NotSupportError"
	NoAuthError       ResDesc = "ErrCode_NoAuthError"
	ExistsError       ResDesc = "ErrCode_ExistsError"
	NotAvailableError ResDesc = "ErrCode_NotAvailableError"
	UnknownError      ResDesc = "ErrCode_UnknownError"

	InvalidLanguageError ResDesc = "ErrCode_InvalidLanguageError"
	InvalidSourceError   ResDesc = "ErrCode_InvalidSourceError"
	InvalidProductError  ResDesc = "ErrCode_InvalidProductError"

	// 业务 错误
	InvalidIdError ResDesc = "InvalidIdError"
	FieldTypeError ResDesc = "FieldTypeError"
)

var (
	OK           = &ResStatus{Code: "0x000000", Description: Success, Solution: ""}
	InvalidToken = &ResStatus{Code: "0x000101", Description: InvalidTokenError, Solution: ""}
	InvalidRole  = &ResStatus{Code: "0x000102", Description: InvalidRoleError, Solution: ""}

	InvalidParam = &ResStatus{Code: "0x000103", Description: InvalidParamError, Solution: ""}
	NotExists    = &ResStatus{Code: "0x000104", Description: NotExistsError, Solution: ""}
	NotSupport   = &ResStatus{Code: "0x000105", Description: NotSupportError, Solution: ""}
	NoAuth       = &ResStatus{Code: "0x000106", Description: NoAuthError, Solution: ""}
	Exists       = &ResStatus{Code: "0x000107", Description: ExistsError, Solution: ""}
	NotAvailable = &ResStatus{Code: "0x000108", Description: NotAvailableError, Solution: ""}

	InvalidLanguage = &ResStatus{Code: "0x000111", Description: InvalidLanguageError, Solution: ""}
	InvalidSource   = &ResStatus{Code: "0x000112", Description: InvalidSourceError, Solution: ""}
	InvalidProduct  = &ResStatus{Code: "0x000113", Description: InvalidProductError, Solution: ""}

	InvalidUsernameOrPasswd = &ResStatus{Code: "0x010101", Description: "ErrCode_InvalidUsernameOrPasswdError", Solution: ""}

	Unknown = &ResStatus{Code: "0x999999", Description: UnknownError, Solution: ""}
)

func helper(code string, msg ResDesc) *ResStatus {
	return &ResStatus{
		Code:        code,
		Description: msg,
		Solution:    "",
	}
}

type ResStatus struct {
	Code        string                 `json:"code"`
	Description ResDesc                `json:"description"`
	Params      map[string]interface{} `json:"-"`
	Solution    string                 `json:"solution"`
}

func (p *ResStatus) Error() string {
	return string(p.Description)
}

func (p *ResStatus) Desc(msg ResDesc) *ResStatus {
	return &ResStatus{p.Code, msg, nil, p.Solution}
}

func convertParamsToMap(params ...interface{}) map[string]interface{} {
	result := make(map[string]interface{})
	for i := 0; i < len(params); i += 2 {
		var value interface{}
		if i+1 < len(params) {
			value = params[i+1]
		} else {
			value = nil
		}
		result[cast.ToString(params[i])] = value
	}
	return result
}

func (p *ResStatus) SetParam(params ...interface{}) *ResStatus {
	return &ResStatus{p.Code, p.Description, convertParamsToMap(params), p.Solution}
}

func (p *ResStatus) Translator(localizer *i18n.Localizer) *ResStatus {
	params := []string{}
	if len(p.Params) > 0 {
		for _, param := range p.Params {
			params = append(params, fmt.Sprintf("%v", param))
		}
	}
	t, err := localizer.Localize(&i18n.LocalizeConfig{
		MessageID:    string(p.Description),
		TemplateData: params,
	})
	if err != nil {
		slog.Error("translator fail\n", "desc", p.Description, "err", err)
		t = string(p.Description)
	}
	return &ResStatus{p.Code, ResDesc(t), p.Params, p.Solution}
}

func (p *ResStatus) H(data ...interface{}) gin.H {
	if len(data) > 0 {
		return gin.H{"status": helper(p.Code, p.Description), "data": data[0]}
	}
	return gin.H{"status": helper(p.Code, p.Description), "data": gin.H{}}
}