private static IEnumerable <PlantAdviseModel> RecommendPlantsWithUserSimilarityIndexes(
IEnumerable <PlantModel> availablePlantList, int userId)
{
var userPlantRatingList = ReadUserPlantRatingCsv();
var userSimilarityIndexList = CalculateUserSimilarityIndex(userId, userPlantRatingList);
var plantAdviseList = new List <PlantAdviseModel>();
foreach (var plant in availablePlantList) // Voor elke plant een rating bepalen
{
var likeIndexes = CountLikeIndexesForPlant(userPlantRatingList, userSimilarityIndexList, plant);
var dislikeIndexes = CountDislikeIndexesForPlant(userPlantRatingList, userSimilarityIndexList, plant);
var ratesCount = CountTimesPlantIsRated(userPlantRatingList, plant);
var plantIndex = (likeIndexes - dislikeIndexes) / ratesCount;
var newPlantAdvise = new PlantAdviseModel
{
Plant = plant,
Rating = plantIndex
};
plantAdviseList.Add(newPlantAdvise);
}
plantAdviseList = plantAdviseList.OrderByDescending(p => p.Rating).ToList();
return(plantAdviseList);
}
private static IEnumerable <PlantAdviseModel> RecommendPlantsBasedOnGardenLocation(
IReadOnlyCollection <PlantModel> plantList, LocationModel gardenLocation)
{
var cityName = gardenLocation.CityName;
var cityPlantList = ReadCityPlantDataCsv();
cityPlantList = cityPlantList.Where(c => c.CityName.ToLower().Equals(cityName.ToLower()));
var orderedPlantList = new List <PlantAdviseModel>();
// This loop adds plants that aren't being grown in city.
foreach (var plant in plantList)
{
var isPlantInCity = cityPlantList.Any(cityPlantModel =>
cityPlantModel.PlantName.ToLower().Equals(plant.Name.ToLower()));
if (isPlantInCity)
{
continue;
}
var plantAdvise = new PlantAdviseModel
{
Rating = 0,
CityName = cityName,
Plant = plant
};
orderedPlantList.Add(plantAdvise);
}
// This loops adds plants that are being grown in the city (in order from least to most).
foreach (var cityPlantModel in cityPlantList)
{
foreach (var plant in plantList)
{
if (!plant.Name.Equals(cityPlantModel.PlantName))
{
continue;
}
var adviceRating = DetermineCityPlantAdviceRating(cityPlantModel);
var plantAdvise = new PlantAdviseModel
{
Rating = adviceRating,
CityName = cityName,
Plant = plant
};
orderedPlantList.Add(plantAdvise);
break;
}
}
return(orderedPlantList.OrderByDescending(p => p.Rating));
}
