package jiyi

import (
	"errors"
	"fmt"
)

// 平台层 code 返回码
const (
	CodeSuccess       = 0  // 成功
	CodeResponseError = -1 // 异常
)

// 业务层 busiCode 返回码（洞侦等接口通用）
const (
	BusiCodeSuccess          = 10   // 查询成功
	BusiCodeNotFound         = 1000 // 未查得
	BusiCodeProductError     = 1004 // 产品编号异常
	BusiCodeSignError        = 1005 // 签名异常
	BusiCodeDataRequestError = 1007 // 数据请求异常
	BusiCodeServiceNotOpen   = 1008 // 服务尚未开通或已暂停
	BusiCodeParamError       = 1010 // 参数错误
	BusiCodeUnknown          = -1   // 未知错误
)

var (
	ErrDatasource = errors.New("数据源异常")
	ErrSystem     = errors.New("系统异常")
	ErrNotFound   = errors.New("查询为空")
)

var platformCodeDesc = map[int]string{
	CodeSuccess:       "成功",
	CodeResponseError: "异常",
}

var busiCodeDesc = map[int]string{
	BusiCodeSuccess:          "查询成功",
	BusiCodeNotFound:         "未查得",
	BusiCodeProductError:     "产品编号异常",
	BusiCodeSignError:        "签名异常",
	BusiCodeDataRequestError: "数据请求异常",
	BusiCodeServiceNotOpen:   "服务尚未开通或已暂停使用",
	BusiCodeParamError:       "参数错误",
	BusiCodeUnknown:          "未知错误",
}

// GetPlatformCodeDesc 根据平台 code 获取描述
func GetPlatformCodeDesc(code int) string {
	if desc, ok := platformCodeDesc[code]; ok {
		return desc
	}
	return ""
}

// GetBusiCodeDesc 根据 busiCode 获取描述
func GetBusiCodeDesc(busiCode int) string {
	if desc, ok := busiCodeDesc[busiCode]; ok {
		return desc
	}
	return ""
}

type jiyiError struct {
	Code    int
	Message string
}

func (e *jiyiError) Error() string {
	return fmt.Sprintf("集奕返回错误，code: %d，msg: %s", e.Code, e.Message)
}

// NewJiyiError 创建平台层错误
func NewJiyiError(code int, message string) *jiyiError {
	if message == "" {
		if desc := GetPlatformCodeDesc(code); desc != "" {
			message = desc
		} else {
			message = "集奕返回未知错误"
		}
	}
	return &jiyiError{Code: code, Message: message}
}

type jiyiBusiError struct {
	BusiCode int
	BusiMsg  string
}

func (e *jiyiBusiError) Error() string {
	return fmt.Sprintf("集奕业务错误，busiCode: %d，busiMsg: %s", e.BusiCode, e.BusiMsg)
}

// NewJiyiBusiError 创建业务层错误
func NewJiyiBusiError(busiCode int, busiMsg string) *jiyiBusiError {
	if busiMsg == "" {
		if desc := GetBusiCodeDesc(busiCode); desc != "" {
			busiMsg = desc
		} else {
			busiMsg = "集奕业务返回未知错误"
		}
	}
	return &jiyiBusiError{BusiCode: busiCode, BusiMsg: busiMsg}
}

// GetErrByBusiCode 将 busiCode 映射为内部哨兵错误
func GetErrByBusiCode(busiCode int) error {
	if busiCode == BusiCodeSuccess {
		return nil
	}
	if busiCode == BusiCodeNotFound {
		return ErrNotFound
	}
	return ErrDatasource
}

// GetErrByPlatformCode 将平台 code 映射为内部哨兵错误
func GetErrByPlatformCode(code int) error {
	if code == CodeSuccess {
		return nil
	}
	return ErrDatasource
}