package data

import (
	json "github.com/json-iterator/go"
)

type _ID_ interface {
	int | string
}

type _TD_[ID _ID_] interface {
	id() ID
}

type table[ID _ID_, TD _TD_[ID]] struct {
	l []TD
	m map[ID]TD
}

func (this *table[ID, TD]) load(buf []byte) error {
	var err = json.Unmarshal(buf, &this.l)
	if err != nil {
		return err
	}

	this.m = map[ID]TD{}
	for _, d := range this.l {
		this.m[d.id()] = d
	}

	return nil
}

func (this *table[ID, TD]) List() []TD {
	return this.l
}

func (this *table[ID, TD]) Get(id ID) (d TD) {
	d = this.m[id]
	return
}