// ------------------------------------------------------------------------
//   Project active2
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  field_extractor.go
//   Created by DEV
//   Modified   31/03/2024
//
//   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 "time"

type (


	FormatExtractor interface {
		Extract (builder FormatBuilder, err error) bool
	}

	FormatExtractorFnc func (builder FormatBuilder, err error) bool


	FormatExtractors []FormatExtractor

)

func (f FormatExtractorFnc) Extract (builder FormatBuilder, err error) bool {
	return f(builder,err) }



func (l FormatExtractors) Extract (builder FormatBuilder, err error) bool {
	if err == nil || len(l) == 0 {
		return true
	}
	for _,f := range l {
		if f != nil {
			if !f.Extract(builder,err) {
				return false
			}
		}
	}
	return true
}


func (l FormatExtractors) Append (exf ...FormatExtractor) FormatExtractors {
	return append(l,exf...) }




func DefaultsExtractors () FormatExtractors {

	return []FormatExtractor{
		FormatExtractorFnc(func (b FormatBuilder, e error) bool {
			if ms,is := e.(interface { Code() string }); is {
				b.AddFieldString("code",ms.Code())
			}
			return true
		}),

		FormatExtractorFnc(func (b FormatBuilder, e error) bool {
			if ms,is := e.(interface { Message() string }); is {
				b.AddFieldString("message",ms.Message())
			}
			return true
		}),
		FormatExtractorFnc(func (b FormatBuilder, e error) bool  {
			if in,is := e.(interface { Info () string }); is {
				b.AddFieldString("info",in.Info())
			}
			return true
		}),
		FormatExtractorFnc(func (b FormatBuilder, e error) bool  {
			if tm,is := e.(interface { Time() time.Time }); is {
				b.AddFieldTime("time",tm.Time())
			}
			return true
		}),
		FormatExtractorFnc(func (b FormatBuilder, e error) bool  {
			if tm,is := e.(interface { Date() time.Time }); is {
				b.AddFieldDate("date",tm.Date())
			}
			return true
		}),
	}
}