/// <summary>
/// 通过当前的菜品状态进行推荐。
/// </summary>
/// <returns></returns>
public async System.Threading.Tasks.Task <List <FoodInformation> > ReFlashAsync()
{
// 如果没录入了文件
if (foodInformationList == null)
{
userFavorInformationList = new List <FoodWeightChange>();
foodInformationList = await _loadJsonService.ReadJsonAsync();
userFavorInformationList = await _userFavorService.ReadJsonAsync();
//userChoiceList = await _userChoiceService.ReadJsonAsync();
InitWeight(foodInformationList, userFavorInformationList);
}
//获得食物的种数
//int len = foodInformationList.Capacity;
if (weatherStatus == null)
{
WeatherRoot data = await _weatherService.GetWeatherAsync();
weatherStatus = new TempWeather();
weatherStatus.Temperature = double.Parse(data.main.temp).ToTemperature();
weatherStatus.Humidity = double.Parse(data.main.humidity).ToHumidity();
}
//获取随机的食物
int changeWeightPosition = (3 * (int)weatherStatus.Temperature) + (int)weatherStatus.Humidity;
List <Vector> foodVector = getFoodVector((int)weatherStatus.Temperature, (int)weatherStatus.Humidity);
List <int> cos = GetCos(foodVector);
int numberFoodToReturn = 5;
int[] arr = new int[numberFoodToReturn]; // change
int numOfGet = 0;
while (numOfGet < numberFoodToReturn)
{
int getFoodNum = GetOneFoodNum(cos);
//该食物已经获取
if (Array.IndexOf(arr, getFoodNum) != -1)
{
continue;
}
arr.SetValue(getFoodNum, numOfGet++);
}
List <FoodInformation> get_foodInformation = new List <FoodInformation>();
for (int i = 0; i < numberFoodToReturn; i++)
{
get_foodInformation.Add(foodInformationList[arr[i]]);
}
return(get_foodInformation);
}
/// <summary>
/// 初始化信息
/// </summary>
public async void InitRecommendationAsync()
{
userFavorInformationList = new List <FoodWeightChange>();
foodInformationList = await _loadJsonService.ReadJsonAsync();
_foodFavorService.InitAsync(foodInformationList);
await _logService.InitAsync();
userFavorInformationList = await _userFavorService.ReadJsonAsync();
InitWeight(foodInformationList, userFavorInformationList);
WeatherRoot data = await _weatherService.GetWeatherAsync();
weatherStatus = new TempWeather();
weatherStatus.Temperature = double.Parse(data.main.temp).ToTemperature();
weatherStatus.Humidity = double.Parse(data.main.humidity).ToHumidity();
}
