package apple

import (
	"encoding/json"
	"time"
)

type ProductMapping struct {
	DurationDays int64  `json:"durationDays"`
	Tier         string `json:"tier"`
	Description  string `json:"description"`
	PriceText    string `json:"priceText"`
	SubscribeId  int64  `json:"subscribeId"`
}

type ProductMap struct {
	Items map[string]ProductMapping `json:"iapProductMap"`
}

func ParseProductMap(customData string) (*ProductMap, error) {
	if customData == "" {
		return &ProductMap{Items: map[string]ProductMapping{}}, nil
	}
	var obj ProductMap
	if err := json.Unmarshal([]byte(customData), &obj); err != nil {
		return &ProductMap{Items: map[string]ProductMapping{}}, nil
	}
	if obj.Items == nil {
		obj.Items = map[string]ProductMapping{}
	}
	return &obj, nil
}

func CalcExpire(start time.Time, days int64) time.Time {
	if days <= 0 {
		return time.UnixMilli(0)
	}
	return start.Add(time.Duration(days) * 24 * time.Hour)
}