FarmMapsApiClient/FarmmapsApiSamples/NitrogenService.cs

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C#
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using System;
using System.Collections.Generic;
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using System.Globalization;
using System.IO;
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using System.Linq;
using System.Threading.Tasks;
using FarmmapsApi.Models;
using FarmmapsApi.Services;
using Google.Apis.Upload;
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using Microsoft.Extensions.Logging;
using Newtonsoft.Json.Linq;
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using static FarmmapsApi.Extensions;
using static FarmmapsApiSamples.Constants;
namespace FarmmapsApiSamples
{
public class NitrogenService : ITestFlow
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{
private readonly ILogger<NitrogenService> _logger;
private readonly FarmmapsApiService _farmmapsApiService;
public NitrogenService(ILogger<NitrogenService> logger, FarmmapsApiService farmmapsApiService)
{
_logger = logger;
_farmmapsApiService = farmmapsApiService;
}
public async Task TestFlow(List<UserRoot> roots)
{
var uploadedRoot = roots.SingleOrDefault(r => r.Name == "Uploaded");
if (uploadedRoot == null)
{
_logger.LogError("Could not find a needed root item");
return;
}
var myDriveRoot = roots.SingleOrDefault(r => r.Name == "My drive");
if (myDriveRoot == null)
{
_logger.LogError("Could not find a needed root item");
return;
}
var cropfieldItem = await GetOrCreateCropfieldItemAsync(myDriveRoot.Code);
var dataPath = Path.Combine("Data", "Scan_1_20190605.zip");
var result = await _farmmapsApiService.UploadFile(dataPath, uploadedRoot.Code,
progress => _logger.LogInformation($"Status: {progress.Status} - BytesSent: {progress.BytesSent}"));
if (result.Progress.Status == UploadStatus.Failed)
{
_logger.LogError($"Uploading failed {result.Progress.Exception.Message}");
return;
}
var isariaGeotiffItem = await ProcessIsaria(uploadedRoot.Code,"Scan_1_20190605.zip");
_logger.LogInformation($"Calculating targetN with targetYield: {60}");
var targetN = await CalculateTargetN(cropfieldItem, 60);
_logger.LogInformation($"TargetN: {targetN}");
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_logger.LogInformation("Calculating uptake map");
var uptakeMapItem =
await CalculateUptakeMap(cropfieldItem, isariaGeotiffItem);
_logger.LogInformation("Downloading uptake map");
await _farmmapsApiService.DownloadItemAsync(uptakeMapItem.Code, $"{uptakeMapItem.Name}.zip");
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_logger.LogInformation("Calculating appliance map");
var applianceMapItem =
await CalculateApplianceMap(cropfieldItem, isariaGeotiffItem, targetN);
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_logger.LogInformation("Downloading appliance map");
await _farmmapsApiService.DownloadItemAsync(applianceMapItem.Code, $"{applianceMapItem.Name}.zip");
}
private async Task<Item> GetOrCreateCropfieldItemAsync(string parentItemCode)
{
var cropfieldItems = await
_farmmapsApiService.GetItemChildrenAsync(parentItemCode, CROPFIELD_ITEMTYPE);
if (cropfieldItems.Count > 0)
return cropfieldItems[0];
var currentYear = new DateTime(DateTime.UtcNow.Year, 1, 1);
var cropfieldItemRequest = new ItemRequest()
{
ParentCode = parentItemCode,
ItemType = CROPFIELD_ITEMTYPE,
Name = "Cropfield for VRA",
DataDate = currentYear,
DataEndDate = currentYear.AddYears(1),
Data = JObject.FromObject(new
{startDate = currentYear, endDate = currentYear.AddMonths(3)}),
Geometry = JObject.Parse(
@"{ ""type"": ""Polygon"", ""coordinates"": [ [ [ 3.40843828875524, 50.638966444680605 ], [ 3.408953272886064, 50.639197789621612 ], [ 3.409242951459603, 50.639469958681836 ], [ 3.409328782148028, 50.639612846807708 ], [ 3.409457528180712, 50.639789755314411 ], [ 3.409639918393741, 50.640014292074966 ], [ 3.409833037442765, 50.640211611372706 ], [ 3.410069071836049, 50.640395321698435 ], [ 3.410380208081761, 50.640572227259661 ], [ 3.410605513638958, 50.640715112034222 ], [ 3.411925160474145, 50.641177783561204 ], [ 3.411935889310142, 50.640728720085136 ], [ 3.412590348309737, 50.63948356709389 ], [ 3.413244807309242, 50.638224772339846 ], [ 3.413400375432099, 50.637901562841307 ], [ 3.413539850300779, 50.637449065809889 ], [ 3.413475477284437, 50.637418445552932 ], [ 3.40999396998362, 50.637449065810451 ], [ 3.409940325803365, 50.638102293212661 ], [ 3.409575545377398, 50.638483338338325 ], [ 3.409060561246574, 50.638707881340494 ], [ 3.40843828875524, 50.638966444680605 ] ] ] }")
};
return await _farmmapsApiService.CreateItemAsync(cropfieldItemRequest);
}
public async Task<Item> ProcessIsaria(string parentCode, string zipName)
{
// get processed isaria data (this can end in an infinite loop...)
// need better way of getting new items processed in a context...
Item isariaShapeItem = null;
await PollTask(TimeSpan.FromSeconds(3), async source =>
{
_logger.LogInformation("Trying to get isaria data");
var uploadedFilesChildren = await _farmmapsApiService.GetItemChildrenAsync(parentCode);
var zipItems = uploadedFilesChildren.Where(i => i.Name == zipName);
var isariaTasks = new List<Task<List<Item>>>();
foreach (var zipItem in zipItems)
{
isariaTasks.Add(_farmmapsApiService.GetItemChildrenAsync(zipItem.Code,
SHAPE_PROCESSED_ITEMTYPE));
}
List<Item>[] items = await Task.WhenAll(isariaTasks);
if (items.Length > 0)
{
var nameWithoutExtension = Path.GetFileNameWithoutExtension(zipName);
var flatItems = items.SelectMany(i => i).Where(i => i.Name.Contains(nameWithoutExtension)).ToList();
if (flatItems.Count > 0)
{
isariaShapeItem = flatItems.OrderByDescending(i => i.Created).First();
source.Cancel();
}
}
});
_logger.LogInformation("Found isaria data");
_logger.LogInformation("Converting shape to geotiff");
// need to transform shape data to geotiff
var shapeToGeotiffRequest = new TaskRequest()
{
TaskType = "vnd.farmmaps.task.shapetogeotiff"
};
var taskCode = await _farmmapsApiService.QueueTaskAsync(isariaShapeItem.Code, shapeToGeotiffRequest);
await PollTask(TimeSpan.FromSeconds(3), async (tokenSource) =>
{
_logger.LogInformation("Checking shapetogeotiff task status");
var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(isariaShapeItem.Code, taskCode);
if (itemTaskStatus.State != ItemTaskState.Processing && itemTaskStatus.State != ItemTaskState.Scheduled)
tokenSource.Cancel();
});
_logger.LogInformation("Isaria shape converted to geotiff");
// the parent of the shape item is now the tiff isaria item
isariaShapeItem = await _farmmapsApiService.GetItemAsync(isariaShapeItem.Code);
return await _farmmapsApiService.GetItemAsync(isariaShapeItem.ParentCode); ;
}
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/// <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;
}
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public async Task<Item> CalculateUptakeMap(Item cropfieldItem, Item inputItem)
{
var nbsApplianceMapRequest = new TaskRequest {TaskType = VRANBS_TASK};
nbsApplianceMapRequest.attributes["operation"] = "uptake";
nbsApplianceMapRequest.attributes["inputCode"] = inputItem.Code;
nbsApplianceMapRequest.attributes["inputType"] = "irmi";
string itemTaskCode = await _farmmapsApiService.QueueTaskAsync(cropfieldItem.Code, nbsApplianceMapRequest);
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($"Something went wrong with task execution: {itemTask.Message}");
return null;
}
var geotiffItems = await
_farmmapsApiService.GetItemChildrenAsync(cropfieldItem.Code, GEOTIFF_PROCESSED_ITEMTYPE);
// maybe poll here to, to wait for geotiff task process to be finished?
// how to uniquely know which item is really created!?
var nitrogenItem = geotiffItems.SingleOrDefault(i => i.Name.Contains("uptake") && i.Updated >= itemTask.Finished);
if (nitrogenItem == null)
{
_logger.LogError("Could not find the uptake geotiff child item under cropfield");
return null;
}
return nitrogenItem;
}
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public async Task<Item> CalculateApplianceMap(Item cropfieldItem, Item inputItem, double targetN)
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{
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var applianceMapRequest = new TaskRequest {TaskType = VRANBS_TASK};
applianceMapRequest.attributes["operation"] = "nitrogen";
applianceMapRequest.attributes["inputCode"] = inputItem.Code;
applianceMapRequest.attributes["inputType"] = "irmi";
applianceMapRequest.attributes["targetN"] = targetN.ToString(CultureInfo.InvariantCulture);
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string itemTaskCode = await _farmmapsApiService.QueueTaskAsync(cropfieldItem.Code, applianceMapRequest);
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await PollTask(TimeSpan.FromSeconds(5), async (tokenSource) =>
{
var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if (itemTaskStatus.State != ItemTaskState.Processing && itemTaskStatus.State != ItemTaskState.Scheduled)
tokenSource.Cancel();
});
var itemTask = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if(itemTask.State == ItemTaskState.Error)
{
_logger.LogError($"Something went wrong with task execution: {itemTask.Message}");
return null;
}
var geotiffItems = await
_farmmapsApiService.GetItemChildrenAsync(cropfieldItem.Code, GEOTIFF_PROCESSED_ITEMTYPE);
// maybe poll here to, to wait for geotiff task process to be finished?
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// how to uniquely know which item is really created!?
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var applianceMapItem = geotiffItems.SingleOrDefault(i => i.Name.Contains("nitrogen") && i.Updated >= itemTask.Finished);
if (applianceMapItem == null)
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{
_logger.LogError("Could not find the nitrogen geotiff child item under cropfield");
return null;
}
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return applianceMapItem;
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}
private ItemRequest CreateTargetNItemRequest(string parentItemCode)
{
return new ItemRequest()
{
ParentCode = parentItemCode,
ItemType = USERINPUT_ITEMTYPE,
Name = "TargetN",
DataDate = DateTime.UtcNow
};
}
}
}