package budget2

import (
	"errors"
	"reflect"
	"zhiyuan/pkg/db"
)

type Order struct {
	ID         int64
	PkgId      int64
	SiteId     int64
	Statistics []string
	Form       Pkg
}

func (order Order) GetAreaId() int64 {
	pkgInfo, err := order.GetPkgInfo()
	if err != nil {
		return 0
	}
	return pkgInfo.AreaId
}

func (order Order) GetPkgInfo() (PkgInfo, error) {
	if _, ok := Pkgs[order.PkgId]; !ok {
		return PkgInfo{}, errors.New("找不到套餐")
	}
	return Pkgs[order.PkgId], nil
}

func (order Order) NewForm() (Pkg, error) {
	pkgInfo, err := order.GetPkgInfo()
	if err != nil {
		return nil, err
	}
	return reflect.New(db.Type(pkgInfo.Pkg)).Interface().(Pkg), nil
}

func (order Order) ReturnResult() interface{} {
	return order.Form.ReturnResult(order.Statistics)
}

func LoadOrder(id int64, pkgId int64, siteId int64, content []byte, statistics []string) (*Order, error) {
	order := new(Order)
	order.ID = id
	order.PkgId = pkgId
	order.SiteId = siteId
	order.Statistics = statistics
	var err error
	order.Form, err = order.NewForm()
	if err != nil {
		return nil, err
	}
	order.Form.Load(pkgId, content)
	/*if len(model.Content) != 0 {
		gzJson := bytes.NewBuffer(model.Content)
		gz, err := gzip.NewReader(gzJson)
		if err != nil {
			return nil, err
		}
		defer gz.Close()
		jsonData, err := ioutil.ReadAll(gz)
		if err != nil {
			return nil, err
		}
		decoder := json.NewDecoder(strings.NewReader(string(jsonData)))
		decoder.UseNumber()
		err = decoder.Decode(&order.Form)
		if err != nil {
			return nil, err
		}
	}*/
	return order, nil
}

func CreateOrder(pkgId int64, siteId int64, area float64, layout []int, statistics []string) (*Order, error) {
	order := new(Order)
	order.ID = 0
	order.PkgId = pkgId
	order.SiteId = siteId
	order.Statistics = statistics
	var err error
	order.Form, err = order.NewForm()
	if err != nil {
		return nil, err
	}
	order.Form.Init(pkgId, area, layout)
	return order, nil
}