// ------------------------------------------------------------------------
//   Project active2
//   Active Thing (activething.com) git.activething.com/go
//
//   File Name  builder.go
//   Created by DEV
//   Modified   20/04/2024
//
//   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 collects

import (
	"sort"
	"time"
)




type (

	Fields 		struct {
		heads 	[]*FieldHead

		anys    []any
		strings []string
		ints    []int
		floats 	[]float64
		dates   []time.Time
	}
)


func (f *Fields) Len() int {
	return len(f.heads) }


func (f *Fields) AddFieldAny   (name string, value any) {
	f.addField(name, FieldKindAny).anys = append(f.anys,value) }

func (f *Fields) AddFieldString(name string, value string) {
	f.addField(name, FieldKindString)
	f.strings = append(f.strings, value)
}

func (f *Fields) AddFieldInt   (name string, value int) {
	f.addField(name, FieldKindInt).ints = append(f.ints, value) }

func (f *Fields) AddFieldBool  (name string, value bool) {
	bv := 0
	if value {
		bv = 1
	}
	f.addField(name, FieldKindInt).ints = append(f.ints, bv)
}

func (f *Fields) AddFieldFloat (name string, value float64) {
	f.addField(name, FieldKindFloat).floats = append(f.floats, value) }

func (f *Fields) AddFieldTime  (name string, value time.Time) {
	f.addField(name, FieldKindTime).dates = append(f.dates, value) }

func (f *Fields) AddFieldDate  (name string, value time.Time) {
	f.addField(name, FieldKindDate).dates = append(f.dates, value) }




func (f *Fields) addField (name string, kind FieldKind) *Fields {
	var pos int
	switch kind {
	case FieldKindBool,
		FieldKindInt: pos = len(f.ints)
	case FieldKindString: pos = len(f.strings)
	case FieldKindDate,
		FieldKindTime: pos = len(f.dates)
	case FieldKindFloat: pos = len(f.floats)
	case FieldKindAny: pos = len(f.anys)
	}
	f.heads = append(f.heads, &FieldHead{
		Name: name,
		Kind: kind,
		Pos:  pos,
	})
	return f
}



func (f *Fields) GetHeads () []*FieldHead {
	return f.heads }


func (f *Fields) GetField (name string) (*FieldHead,bool) {
	for i,h := range f.heads {
		if h.Name == name {
			return f.heads[i],true
		}
	}
	return nil,false
}

func (f *Fields) GetFieldValueAny (head *FieldHead) any {
	return f.anys[head.Pos] }

func (f *Fields) GetFieldValueString (head *FieldHead) string {
	return f.strings[head.Pos] }

func (f *Fields) GetFieldValueInt (head *FieldHead) int {
	return f.ints[head.Pos] }

func (f *Fields) GetFieldValueFloat (head *FieldHead) float64 {
	return f.floats[head.Pos] }

func (f *Fields) GetFieldValueBool (head *FieldHead) bool {
	return (f.ints[head.Pos]) > 0 }

func (f *Fields) GetFieldValueDate (head *FieldHead) time.Time {
	return f.dates[head.Pos] }

func (f *Fields) GetFieldValueTime (head *FieldHead) time.Time {
	return f.dates[head.Pos] }


func (f *Fields) Sort () {
	sort.Slice(f.heads, func(i, j int) bool {
		return f.heads[i].Name < f.heads[j].Name
	})
}