package data

import (
	"fmt"
	"os"
	"reflect"
	"strings"
)

type tableLoader interface {
	load(buf []byte) error
}

type Tables struct {
	Copy           CopyTable
	CopyMain       CopyMainTable
	Equip          EquipTable
	EquipLevel     EquipLevelTable
	EquipRefine    EquipRefineTable
	EquipSet       EquipSetTable
	Hero           HeroTable
	HeroBond       HeroBondTable
	HeroBook       HeroBookTable
	HeroBreak      HeroBreakTable
	HeroLevel      HeroLevelTable
	HeroSoul       HeroSoulTable
	FunctionOpen   FunctionOpenTable
	Item           ItemTable
	Monster        MonsterTable
	Scene          SceneTable
	ServerConfig   ServerConfigTable
	Treasure       TreasureTable
	TreasureLevel  TreasureLevelTable
	TreasureRefine TreasureRefineTable
	UpgradeMaster  UpgradeMasterTable
}

func NewTables(dataDir string) (*Tables, error) {
	var tables = new(Tables)
	var tt = reflect.TypeOf(tables).Elem()
	var tv = reflect.ValueOf(tables).Elem()

	var fn = tt.NumField()
	for i := range fn {
		var sf = tt.Field(i)
		var ft = sf.Type
		var name = ft.Name()
		if strings.HasSuffix(name, "Table") {
			name = strings.TrimSuffix(name, "Table")
		}

		var fv = tv.Field(i)

		loader, ok := fv.Addr().Interface().(tableLoader)
		if !ok {
			continue
		}

		buf, err := os.ReadFile(fmt.Sprintf("%s/tb%s.json", dataDir, strings.ToLower(name)))
		if err != nil {
			return nil, err
		}

		err = loader.load(buf)
		if err != nil {
			return nil, err
		}
	}

	return tables, nil
}