/// <summary>
/// Initializes a new instance of the <see cref="T:System.Object" /> class.
/// </summary>
public Order(double price, double quantity, PriceStrategy strategy)
{
Price = price;
Quantity = quantity;
PriceStrategy = strategy;
Total = PriceStrategy.AcceptCash(price * quantity);
}
/// <summary>
/// 获取应付的价格
/// </summary>
/// <param name="priceStrategy"></param>
/// <param name="startTime"></param>
/// <param name="endTime"></param>
/// <returns></returns>
private static double GetPrice(PriceStrategy priceStrategy, DateTime startTime, DateTime endTime)
{
JObject strategy = JObject.Parse(priceStrategy.StrategyJson);
switch (strategy["type"].Value <string>())
{
case "stepHourBase": //按每小时阶梯定价，目前仅支持这一种
var priceArray = strategy["prices"] as IEnumerable <JToken>;
Dictionary <double, double> prices = new Dictionary <double, double>();
foreach (var item in priceArray)
{
//循环每一个价格阶层
double upper = item["upper"].Value <double>(); //最长的市场
upper = upper == -1 ? double.PositiveInfinity : upper;
double price = item["price"].Value <double>(); //这个阶层的价格
prices.Add(upper, price);
}
//此时对价格策略的解析已经完成
int hour = (int)Math.Ceiling((endTime - startTime).TotalHours); //停车时长，不足一小时按一小时算
double sum = 0; //总价
double lastUpper = 0; //上一级阶梯的时长
foreach (var upper in prices.Keys.OrderBy(p => p))
{
if (upper >= hour) //已经到达最大阶梯
{
sum += (hour - lastUpper) * prices[upper];
break;
}
else
{
sum += (upper - lastUpper) * prices[upper];
lastUpper = upper;
}
}
return(sum);
default:
throw new NotImplementedException();
}
}
/// <summary>
/// 生成测试数据
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async static Task GenerateTestDatasAsync(ParkContext context)
{
List <ParkArea> parkAreas = new List <ParkArea>();
Random r = new Random();
await Config.SetAsync(context, "MonthlyPrice", "120");//设置月租120元/月
PriceStrategy priceStrategy = new PriceStrategy()
{
StrategyJson = @"{
""type"": ""stepHourBase"",
""prices"": [
{
""upper"": 5,
""price"": 2
},
{
""upper"": 12,
""price"": 1
},
{
""upper"": -1,
""price"": 0.5
}
]
}",
//MonthlyPrice = 120
};
context.PriceStrategys.Add(priceStrategy);
//导入停车区信息
parkAreas = await ParkingSpaceService.ImportFromJsonAsync(context, parkAreaJson);
foreach (var parkArea in parkAreas)
{
parkArea.GateTokens = GenerateToken() + ";" + GenerateToken();
parkArea.ParkingSpaces.ForEach(p => p.SensorToken = GenerateToken());
parkArea.PriceStrategy = priceStrategy;
//设置停车区的大门Token、生成每个停车位的Token、设置价格策略
}
//}
//ParkArea parkArea = new ParkArea()
//{
// Name = "停车场" + (i + 1),
// PriceStrategy = priceStrategy,
// Length = 100,
// Width = 50
//};
// context.ParkAreas.Add(parkArea);
// for (int j = 0; j < r.Next(50, 100); j++)
// {
// context.ParkingSpaces.Add(new ParkingSpace()
// {
// ParkArea = parkArea,
// X = r.Next(0, 50),
// Y = r.Next(0, 50),
// Width = 5,
// Height = 2.5,
// RotateAngle = r.Next(0, 90)
// });
// }
//}
//context.SaveChanges();
//var a = context.ParkAreas.First().ParkingSpaces;
//parkAreas = await context.ParkAreas.ToListAsync();
for (int i = 0; i < 20; i++)//车主
{
//注册一名车主
var owner = (await CarOwnerService.Regist(context,
"user" + r.Next(0, short.MaxValue), "1234",
DateTime.Now.AddDays(-10).AddDays(-r.NextDouble() * 5))).CarOwner;//模拟用户在5天内注册的
await context.SaveChangesAsync();
//模拟为车主充值5次
await TransactionService.RechargeMoneyAsync(context, owner.ID, r.Next(20, 200),
DateTime.Now.AddDays(-7).AddDays(-r.NextDouble()));
await TransactionService.RechargeMoneyAsync(context, owner.ID, r.Next(10, 50),
DateTime.Now.AddDays(-6).AddDays(-r.NextDouble()));
await TransactionService.RechargeMoneyAsync(context, owner.ID, r.Next(30, 200),
DateTime.Now.AddDays(-5).AddDays(-r.NextDouble()));
int carCount = r.Next(2, 5);
for (int j = 0; j < carCount; j++)//车辆
{
//为车主加入几辆车
var car = new Car()
{
LicensePlate = "浙B" + r.Next(10000, 99999),
CarOwner = owner
};
context.Cars.Add(car);
context.SaveChanges();
int parkCount = r.Next(2, 10);
//为每辆车模拟生成几次停车记录
for (int k = 0; k < parkCount; k++)//进出场信息
{
DateTime enterTime = DateTime.Now.AddDays(-parkCount + k - 1 - r.NextDouble());
DateTime leaveTime = enterTime.AddDays(r.NextDouble());
var parkArea = parkAreas[r.Next(0, 2)];
//模拟用户在5天内进入过停车场，然后出了停车场
await ParkService.EnterAsync(context, car.LicensePlate, parkArea, enterTime);
var result = await ParkService.LeaveAsync(context, car.LicensePlate, parkArea, leaveTime);
//这里非常奇怪，部分停车记录的停车时间会变成1-01-01 8:05，明明ParkRecord里的时间都是正确的
//已解决，时间问题
}
}
}
context.SaveChanges();
}
//public static Func<DateTime> Now = () => DateTime.Today.AddHours(20);//模拟的当前时间
/// <summary>
/// 生成测试数据
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async static Task GenerateTestDatasAsync(ParkContext context, int userCount, Func <DateTime> now)
{
Random r = new Random();
List <ParkArea> parkAreas = new List <ParkArea>();
if (string.IsNullOrEmpty(await Config.GetAsync(context, "HasData", "")))
{
await Config.SetAsync(context, "HasData", "True"); //设置月租120元/月
await Config.SetAsync(context, "MonthlyPrice", "120"); //设置月租120元/月
PriceStrategy priceStrategy = new PriceStrategy()
{
StrategyJson = @"{
""type"": ""stepHourBase"",
""prices"": [
{
""upper"": 5,
""price"": 2
},
{
""upper"": 12,
""price"": 1
},
{
""upper"": -1,
""price"": 0.5
}
]
}",
//MonthlyPrice = 120
};
context.PriceStrategys.Add(priceStrategy);
//导入停车区信息
parkAreas = await ParkingSpaceService.ImportFromJsonAsync(context, parkAreaJson);
foreach (var parkArea in parkAreas)
{
parkArea.GateTokens = GenerateToken() + ";" + GenerateToken();
parkArea.ParkingSpaces.ForEach(p => p.SensorToken = GenerateToken());
parkArea.PriceStrategy = priceStrategy;
//设置停车区的大门Token、生成每个停车位的Token、设置价格策略
}
//}
//ParkArea parkArea = new ParkArea()
//{
// Name = "停车场" + (i + 1),
// PriceStrategy = priceStrategy,
// Length = 100,
// Width = 50
//};
// context.ParkAreas.Add(parkArea);
// for (int j = 0; j < r.Next(50, 100); j++)
// {
// context.ParkingSpaces.Add(new ParkingSpace()
// {
// ParkArea = parkArea,
// X = r.Next(0, 50),
// Y = r.Next(0, 50),
// Width = 5,
// Height = 2.5,
// RotateAngle = r.Next(0, 90)
// });
// }
//}
//context.SaveChanges();
//var a = context.ParkAreas.First().ParkingSpaces;
//parkAreas = await context.ParkAreas.ToListAsync();
}
else
{
parkAreas = await context.ParkAreas.Include(p => p.ParkingSpaces).ToListAsync();
}
int i = context.CarOwners.Any() ? context.CarOwners.Max(p => p.ID) + 1 : 0;
int max = i + userCount;
for (; i < max; i++)//车主
{
//注册一名车主
var owner = (await CarOwnerService.RegisterAsync(context,
"user" + (i + 1).ToString(), "1234",
now().AddDays(-10).AddDays(-r.NextDouble() * 5))).CarOwner;//模拟用户在5天内注册的
await context.SaveChangesAsync();
//模拟为车主充值3次
await TransactionService.RechargeMoneyAsync(context, owner.ID, r.Next(20, 200),
now().AddDays(-7).AddDays(-r.NextDouble()));
await TransactionService.RechargeMoneyAsync(context, owner.ID, r.Next(10, 50),
now().AddDays(-6).AddDays(-r.NextDouble()));
await TransactionService.RechargeMoneyAsync(context, owner.ID, r.Next(30, 200),
now().AddDays(-5).AddDays(-r.NextDouble()));
int carCount = r.Next(2, 5);
for (int j = 0; j < carCount; j++)//车辆
{
//为车主加入几辆车
var car = new Car()
{
LicensePlate = "浙B" + r.Next(10000, 99999),
CarOwner = owner
};
context.Cars.Add(car);
context.SaveChanges();
DateTime time = owner.RegistTime.AddDays(r.NextDouble());
//为每辆车模拟生成几次停车记录
while (true)//进出场信息
{
DateTime enterTime = time.AddDays(r.NextDouble());
if (enterTime.Hour > 23 || enterTime.Hour < 7)//模拟夜间没有车辆进入
{
enterTime = enterTime.AddHours(8);
}
DateTime leaveTime = enterTime.AddDays(r.NextDouble());
if (leaveTime.Hour > 23 || leaveTime.Hour < 7)
{
leaveTime = leaveTime.AddHours(8);
}
if (leaveTime > now())
{
break;
}
time = leaveTime;
var parkArea = parkAreas[r.Next(0, 3)];
//模拟用户在5天内进入过停车场，然后出了停车场
if ((await ParkService.EnterAsync(context, car.LicensePlate, parkArea, enterTime)).CanEnter)
{
ParkingSpace ps = parkArea.ParkingSpaces.First(p => !p.HasCar);
ps.HasCar = true; //切换停车位状态
if (leaveTime > now().AddHours(-0.5)) //设置时间差，这样可以让最后有一部分车留下来
{
break;
}
var result = await ParkService.LeaveAsync(context, car.LicensePlate, parkArea, leaveTime);
if (result.CanLeave)
{
ps.HasCar = false;//切换停车位状态
}
}
//这里非常奇怪，部分停车记录的停车时间会变成1-01-01 8:05，明明ParkRecord里的时间都是正确的
//已解决，时间问题
}
}
}
context.SaveChanges();
}
public StrategyContext(PriceStrategy priceStrategy)
{
_priceStrategy = priceStrategy;
}
