public async Task <IHttpActionResult> CreateOne(string giftId)
{
var gift = await _dbContext.CouponGifts.FindAsync(giftId);
if (gift == null)
{
return(NotFound());
}
if (DateTime.Now >= gift.EndTime)
{
return(this.BadRequest(nameof(giftId), Errors.GiftOffTheMarket));
}
var userId = User.Identity.GetUserId();
var user = await _userManager.FindByIdAsync(userId);
if (user.Coupon < gift.Price)
{
return(this.BadRequest(nameof(giftId), Errors.NotEnoughCoupon));
}
try
{
GiftProcessor processor;
switch (gift.Type)
{
case CouponGiftType.Custom:
processor = new CustomProcessor();
break;
case CouponGiftType.SteamCnCredit:
processor = new SteamCnCreditProcessor(_dbContext, _userManager, _coupon);
break;
case CouponGiftType.SteamGiftCard:
processor = new SteamGiftCardProcessor(_dbContext, _coupon);
break;
default:
throw new ArgumentOutOfRangeException();
}
processor.Initialize(user, gift);
await processor.RedeemAsync();
return(Ok());
}
catch (Exception e)
{
return(this.BadRequest(nameof(giftId), e.Message));
}
}
/// <summary>
/// 创建 <see cref="CouponGiftList"/>
/// </summary>
/// <param name="currentUserId">当前用户Id</param>
/// <param name="dbContext"><see cref="KeylolDbContext"/></param>
/// <param name="cachedData"><see cref="CachedDataProvider"/></param>
/// <param name="userManager"><see cref="KeylolUserManager"/></param>
/// <param name="coupon"><see cref="CouponProvider"/></param>
public static async Task <CouponGiftList> CreateAsync(string currentUserId, KeylolDbContext dbContext,
CachedDataProvider cachedData, KeylolUserManager userManager, CouponProvider coupon)
{
var queryResult = await dbContext.CouponGifts.Where(g => DateTime.Now < g.EndTime)
.OrderByDescending(g => g.CreateTime)
.ToListAsync();
var currentUser = await userManager.FindByIdAsync(currentUserId);
var result = new CouponGiftList(queryResult.Count);
foreach (var g in queryResult)
{
GiftProcessor processor;
switch (g.Type)
{
case CouponGiftType.Custom:
processor = new CustomProcessor();
break;
case CouponGiftType.SteamCnCredit:
processor = new SteamCnCreditProcessor(dbContext, userManager, coupon);
break;
case CouponGiftType.SteamGiftCard:
processor = new SteamGiftCardProcessor(dbContext, coupon);
break;
default:
throw new ArgumentOutOfRangeException();
}
var stateTreeGift = new CouponGift
{
Id = g.Id,
Name = g.Name,
Descriptions = Helpers.SafeDeserialize <List <string> >(g.Descriptions),
Price = g.Price,
ThumbnailImage = g.ThumbnailImage,
Type = g.Type
};
processor.Initialize(currentUser, g);
await processor.FillPropertiesAsync(stateTreeGift);
result.Add(stateTreeGift);
}
return(result);
}
