FarmMapsApiClient/FarmmapsApiSamples/NitrogenService.cs

125 lines
5.3 KiB
C#
Raw Normal View History

2020-03-25 16:49:00 +00:00
using System;
using System.Globalization;
using System.Linq;
using System.Threading.Tasks;
using FarmmapsApi.Models;
using FarmmapsApi.Services;
using Microsoft.Extensions.Logging;
using static FarmmapsApi.Extensions;
using static FarmmapsApiSamples.Constants;
namespace FarmmapsApiSamples
{
public class NitrogenService
{
private readonly ILogger<NitrogenService> _logger;
private readonly FarmmapsApiService _farmmapsApiService;
public NitrogenService(ILogger<NitrogenService> logger, FarmmapsApiService farmmapsApiService)
{
_logger = logger;
_farmmapsApiService = farmmapsApiService;
}
/// <summary>
/// Calculates TargetN, makes the assumption the cropfield and user.input(targetn) item have the same parent
/// </summary>
/// <param name="cropfieldItem">The cropfield to base the calculations on</param>
/// <param name="targetYield">The target yield input for the TargetN calculation</param>
/// <returns>The TargetN</returns>
public async Task<double> CalculateTargetN(Item cropfieldItem, int targetYield)
{
var targetNItems = await
_farmmapsApiService.GetItemChildrenAsync(cropfieldItem.ParentCode, USERINPUT_ITEMTYPE);
Item targetNItem;
if (targetNItems.Count == 0)
{
_logger.LogInformation("Creating targetN item");
var itemRequest = CreateTargetNItemRequest(cropfieldItem.ParentCode);
targetNItem = await _farmmapsApiService.CreateItemAsync(itemRequest);
}
else
{
targetNItem = targetNItems[0];
}
var nbsTargetNRequest = new TaskRequest {TaskType = VRANBS_TASK};
nbsTargetNRequest.attributes["operation"] = "targetn";
nbsTargetNRequest.attributes["inputCode"] = targetNItem.Code;
nbsTargetNRequest.attributes["inputType"] = "irmi";
nbsTargetNRequest.attributes["purposeType"] = "consumption";
nbsTargetNRequest.attributes["targetYield"] = targetYield.ToString();
string itemTaskCode = await _farmmapsApiService.QueueTaskAsync(cropfieldItem.Code, nbsTargetNRequest);
await PollTask(TimeSpan.FromSeconds(3), async (tokenSource) =>
{
var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if (itemTaskStatus.State != ItemTaskState.Processing && itemTaskStatus.State != ItemTaskState.Scheduled)
tokenSource.Cancel();
});
var itemTask = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if(itemTask.State == ItemTaskState.Error)
{
_logger.LogError($"Something went wrong with task execution: {itemTask.Message}");
return 0;
}
var item = await _farmmapsApiService.GetItemAsync(targetNItem.Code);
if (item.Data.ContainsKey("TargetN"))
return item.Data.Value<double>("TargetN");
return 0;
}
public async Task<Item> CalculateNitrogenMap(Item cropfieldItem, Item inputItem, double targetN)
{
var nbsNitrogenRequest = new TaskRequest {TaskType = VRANBS_TASK};
nbsNitrogenRequest.attributes["operation"] = "nitrogen";
nbsNitrogenRequest.attributes["inputCode"] = inputItem.Code;
nbsNitrogenRequest.attributes["inputType"] = "irmi";
nbsNitrogenRequest.attributes["targetN"] = targetN.ToString(CultureInfo.InvariantCulture);
string itemTaskCode = await _farmmapsApiService.QueueTaskAsync(cropfieldItem.Code, nbsNitrogenRequest);
await PollTask(TimeSpan.FromSeconds(5), async (tokenSource) =>
{
var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if (itemTaskStatus.State != ItemTaskState.Processing && itemTaskStatus.State != ItemTaskState.Scheduled)
tokenSource.Cancel();
});
var itemTask = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if(itemTask.State == ItemTaskState.Error)
{
_logger.LogError($"Something went wrong with task execution: {itemTask.Message}");
return null;
}
var geotiffItems = await
_farmmapsApiService.GetItemChildrenAsync(cropfieldItem.Code, GEOTIFF_ITEMTYPE);
// how to uniquely know which item is really created!?
var nitrogenItem = geotiffItems.SingleOrDefault(i => i.Name.Contains("nitrogen"));
if (nitrogenItem == null)
{
_logger.LogError("Could not find the nitrogen geotiff child item under cropfield");
return null;
}
return nitrogenItem;
}
private ItemRequest CreateTargetNItemRequest(string parentItemCode)
{
return new ItemRequest()
{
ParentCode = parentItemCode,
ItemType = USERINPUT_ITEMTYPE,
Name = "TargetN",
DataDate = DateTime.UtcNow
};
}
}
}