Added create applicationmap.

fixed to flow.

FarmmapsHaulmkilling/HaulmkillingService.cs

@@ -1,9 +1,13 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using FarmmapsApi.Models;
 using FarmmapsApi.Services;
 using FarmmapsHaulmkilling.Models;
 using Microsoft.Extensions.Logging;
+using static FarmmapsApi.Extensions;
+using static FarmmapsApiSamples.Constants;
 
 namespace FarmmapsHaulmkilling
 {
@@ -21,6 +25,10 @@ namespace FarmmapsHaulmkilling
             _generalService = generalService;
         }
         
+        /// <summary>
+        /// Gets the list of available haulmkilling agents
+        /// </summary>
+        /// <returns>List of haulmkilling agents</returns>
         public async Task<List<HaulmkillingAgent>> GetHaulmkillingAgents()
         {
             var itemType = "vnd.farmmaps.package.vra.haulmkilling";
@@ -32,5 +40,57 @@ namespace FarmmapsHaulmkilling
 
             return item.Data.ContainsKey("agents") ? item.Data["agents"].ToObject<List<HaulmkillingAgent>>() : null;
         }
+        
+        /// <summary>
+        /// Creates an haulmkilling application map
+        /// </summary>
+        /// <param name="cropfieldItem">The context cropfield item to use</param>
+        /// <param name="inputItem">The geotiff item to use</param>
+        /// <param name="inputType">WDVI or NDVI</param>
+        /// <param name="agentName">One of the available agents</param>
+        /// <param name="selectedOption">One of the available options</param>
+        /// <returns>Haulmkilling application map item</returns>
+        public async Task<Item> CalculateApplicationMapAsync(Item cropfieldItem, Item inputItem, string inputType,
+            string agentName, string selectedOption)
+        {
+            var taskRequest = new TaskRequest()
+            {
+                TaskType = "vnd.farmmaps.task.vrahaulmkilling"
+            };
+            taskRequest.attributes["inputCode"] = inputItem.Code;
+            taskRequest.attributes["inputType"] = inputType;
+            taskRequest.attributes["agentName"] = agentName;
+            taskRequest.attributes["selectedOption"] = selectedOption;
+
+            var taskCode = await _farmmapsApiService.QueueTaskAsync(cropfieldItem.Code, taskRequest);
+            await PollTask(TimeSpan.FromSeconds(3), async (tokenSource) =>
+            {
+                _logger.LogInformation("Checking vrahaulmkilling 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 = $"VRAHaulmkilling {agentName}";
+            var applianceMapItem = await _generalService.FindChildItemAsync(cropfieldItem.Code,
+                GEOTIFF_PROCESSED_ITEMTYPE, itemName, 
+                i => i.Updated >= itemTask.Finished.GetValueOrDefault(DateTime.UtcNow) &&
+                            i.Name.ToLower().Contains(itemName.ToLower()));
+            
+            if (applianceMapItem == null)
+            {
+                _logger.LogError("Could not find the VRAHaulmkilling geotiff child item under cropfield");
+                return null;
+            }
+
+            return applianceMapItem;
+        }
     }
 }