// ------------------------------------------------------------------------
//   Project active2
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  errMeta.go
//   Created by DEV
//   Modified   24/03/2024
//
//   Copyright 2024 activething.com 
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------

package errs

import (
	"errs/fmtr"
	"fmt"
	"time"
)

type (

	ErrInfo struct {
		error
		message string
		info 	string
		desc 	string
		help 	string
		link 	string
		date 	time.Time

		metas 	map[string]string
	}

	ErrInfoFnc func (*ErrInfo)

)


func NewErrInfo(err error, options ...ErrInfoFnc) *ErrInfo {
	if err == nil {
		return nil
	}
	return applyErrOptions(&ErrInfo{
		error: err,
		date : time.Now(),
	}, options ...)
}



func (e ErrInfo) Info () string {
	return e.info }

func (e ErrInfo) Date () time.Time {
	return e.date }

func (e ErrInfo) Message () string {
	return e.message }


func (e ErrInfo) MapMetas(f func (name string, value any) bool) {
	if len(e.metas) > 0 {
		for k,v := range e.metas {
			if !f(k,v) {
				return
			}
		}
	}
}


func (e ErrInfo) Unwrap () error {
	return e.error }




func (e ErrInfo) WrapWithCause(cause error) error {
	return WrapWithCause(e,cause) }


func (e ErrInfo) WrapWithTrace(offset int) error {
	return WrapWithTrace(e,offset) }




func (e ErrInfo) String () string {
	return string(G.Formatter.FormatError(e)) }




func (e ErrInfo) BuildFormat(builder fmtr.Builder) {
	builder.Build(e,func (fb fmtr.FieldBuilder){
		fb.AddFieldString("message",e.message)
		fb.AddFieldString("info",e.info)
		fb.AddFieldDate("date",e.date)
		if len(e.metas) > 0 {
			for n,v := range e.metas {
				fb.AddFieldString(n,v)
			}
		}
	})
}





func applyErrOptions(Err *ErrInfo, options ...ErrInfoFnc) *ErrInfo {
	for _,o := range options {
		o(Err)
	}
	return Err
}



func ErrInfoWithCause (cause error) ErrInfoFnc {
	return func(e *ErrInfo) {
		if cause == nil {
			return
		}
		e.error = *NewErrCause(e.error,cause)
	}
}


func ErrInfoWithMessage(message string, params ...any) ErrInfoFnc {
	if len(params) > 0 {
		message = fmt.Sprintf(message,params ...)
	}
	return func(e *ErrInfo) {
		e.message = message
	}
}

func ErrInfoWithInfo   (info string, params ...any) ErrInfoFnc {
	if len(params) > 0 {
		info = fmt.Sprintf(info,params ...)
	}
	return func(e *ErrInfo) {
		e.info = info
	}
}


func ErrInfoWithStackTrace (offset int) ErrInfoFnc {
	return func (e *ErrInfo) {
		e.error = *NewErrTrace(e.error,offset) }
}



func ErrInfoWithMeta (name string, value string) ErrInfoFnc {
	return func (e *ErrInfo) {
		if e.metas == nil {
			e.metas=map[string]string{name:value}
			return
		}
		e.metas[name]=value
	}
}