// ------------------------------------------------------------------------
// ℹ️ Project active3
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  fields.go
// ✍️ Created by DEV
// 📅 Modified   01/05/2024
//
// 🔒 COPYRIGHT  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 fields

import (
	"ablds"
	"sort"
)

type (

	// Fields es un tipo que representa una lista de campos y proporciona métodos
	// para gestionar y manipular dicha lista.
	Fields []Field

)



func (f Fields) Len () int {
	return len(f) }

func (f Fields) Has (name string) bool {
	return f.indexOf(name) != -1 }


func (f Fields) Kinds() Kind {
	var k Kind
	for _,f := range f {
		k|=f.Kind()
	}
	return k
}

func (f Fields) Get(name string) Field {
	if p := f.indexOf(name); p != -1 {
		return f[p]
	}
	return nil
}


func (f Fields) GetAll (name string) []Field {
	var ls []Field
	for _,fl := range f {
		if fl.Name() == name {
			ls = append(ls,fl)
		}
	}
	return ls
}




func (f Fields) Add(field Field) Fields {
	if field != nil {
		return append(f,field)
	}
	return f
}

func (f Fields) Set(field Field) Fields {
	if field == nil {
		return f
	}
	if p := f.indexOf(field.Name()); p != -1 {
		return append(append(f[:p],field), f[p+1:]...)
	}
	return append(f,field)
}

func (f Fields) Del(name string) Fields {
	if p := f.indexOf(name); p != -1 {
		return append(f[:p],f[p+1:]...)
	}
	return f
}

func (f Fields) DelAll (name string) Fields {
	l := make(Fields,0,len(f))
	c := 0
	for i := 0; i<len(f); i++  {
		if f[i].Name() == name {
			l = append(l,f[c:i]...)
			c = i+1
		}
	}
	l = append(l,f[c:]...)
	return l
}



func (f Fields) Sort() {
	sort.Sort(f) }

func (f Fields) Swap(i, j int) {
	f[i], f[j] = f[j], f[i] }

func (f Fields) Less(i, j int) bool {
	return f[i].Name() < f[j].Name() }



func (f Fields) indexOf(name string) int {
	for i,f := range f {
		if f.Name() == name {
			return i
		}
	}
	return -1
}


func (f Fields) Build (builder ablds.Builder) {
	builder.List(func(lb ablds.ListBuilder) {
		for _,fl := range f {
			buildFieldAsObject(fl,lb.Item())
		}
	})
}