Added BlightApiClient

FarmMapsBlight/BlightService.cs

@@ -0,0 +1,67 @@
+using FarmmapsApi.Models;
+using FarmmapsApi.Services;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Threading.Tasks;
+using static FarmmapsApi.Extensions;
+using static FarmmapsApiSamples.Constants;
+
+namespace FarmMapsBlight
+{
+    public class BlightService
+    {
+        private readonly ILogger<BlightService> _logger;
+        private readonly FarmmapsApiService _farmmapsApiService;
+        private readonly GeneralService _generalService;
+
+        public BlightService(ILogger<BlightService> logger, FarmmapsApiService farmmapsApiService,
+            GeneralService generalService)
+        {
+            _logger = logger;
+            _farmmapsApiService = farmmapsApiService;
+            _generalService = generalService;
+        }
+
+        public async Task<Item> CreateAdvice(Item cropfieldItem, DateTime plantingDate, DateTime emergeDate)
+        {
+            var taskRequest = new TaskRequest()
+            {
+                TaskType = "vnd.farmmaps.task.blight"
+            };
+
+            taskRequest.attributes["plantingDate"] = plantingDate.ToUniversalTime().ToString("o");
+            taskRequest.attributes["emergeDate"] = emergeDate.ToUniversalTime().ToString("o");
+
+            var taskCode = await _farmmapsApiService.QueueTaskAsync(cropfieldItem.Code, taskRequest);
+            await PollTask(TimeSpan.FromSeconds(3), async (tokenSource) =>
+            {
+                _logger.LogInformation("Checking blight task status");
+                var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, taskCode);
+                if (itemTaskStatus.IsFinished)
+                    tokenSource.Cancel();
+            });
+
+            var itemTask = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, taskCode);
+            if (itemTask.State == ItemTaskState.Error)
+            {
+                _logger.LogError($"Something went wrong with task execution: {itemTask.Message}");
+                return null;
+            }
+
+            var itemName = $"Blight";
+            var blightAdviceItem = await _generalService.FindChildItemAsync(cropfieldItem.Code,
+                BLIGHT_ITEMTYPE, itemName);
+
+            // incorrect filter task is finished after updating
+
+            // i => i.Updated >= itemTask.Finished && i.Name.ToLower().Contains(itemName.ToLower())
+            if (blightAdviceItem == null)
+            {
+                _logger.LogError("Could not find the blight item under cropfield");
+                return null;
+            }
+
+            return blightAdviceItem;
+        }
+    }
+}