From a33143743386678e1c5c4d95038340cf05beb710 Mon Sep 17 00:00:00 2001
From: Mark van der Wal <mark.vanderwal@akkerweb.nl>
Date: Tue, 28 Apr 2020 12:37:56 +0200
Subject: [PATCH] Finding satellite items.

---
 FarmmapsApi/Constants.cs                      |  5 +++
 .../HaulmkillingApplication.cs                | 38 +++++++++++++++++--
 FarmmapsHaulmkilling/Models/Settings.cs       |  2 +-
 3 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/FarmmapsApi/Constants.cs b/FarmmapsApi/Constants.cs
index 30f50f1..1bae5eb 100644
--- a/FarmmapsApi/Constants.cs
+++ b/FarmmapsApi/Constants.cs
@@ -3,11 +3,16 @@ namespace FarmmapsApiSamples
     public static class Constants
     {
         public const string USERINPUT_ITEMTYPE = "vnd.farmmaps.itemtype.user.input";
+        public const string TEMPORAL_ITEMTYPE = "vnd.farmmaps.itemtype.temporal";
         public const string GEOTIFF_ITEMTYPE = "vnd.farmmaps.itemtype.geotiff";
         public const string GEOTIFF_PROCESSED_ITEMTYPE = "vnd.farmmaps.itemtype.geotiff.processed";
         public const string CROPFIELD_ITEMTYPE = "vnd.farmmaps.itemtype.cropfield";
         public const string SHAPE_PROCESSED_ITEMTYPE = "vnd.farmmaps.itemtype.shape.processed";
         public const string SHAPE_ITEMTYPE = "vnd.farmmaps.itemtype.shape";
+        
         public const string VRANBS_TASK = "vnd.farmmaps.task.vranbs";
+        public const string VRAHERBICIDE_TASK = "vnd.farmmaps.task.vraherbicide";
+        public const string VRAHAULMKILLING_TASK = "vnd.farmmaps.task.vrahaulmkilling";
+        public const string SATELLITE_TASK = "vnd.farmmaps.task.satellite";
     }
 }
\ No newline at end of file
diff --git a/FarmmapsHaulmkilling/HaulmkillingApplication.cs b/FarmmapsHaulmkilling/HaulmkillingApplication.cs
index 720f457..209cded 100644
--- a/FarmmapsHaulmkilling/HaulmkillingApplication.cs
+++ b/FarmmapsHaulmkilling/HaulmkillingApplication.cs
@@ -8,6 +8,8 @@ using FarmmapsHaulmkilling.Models;
 using Microsoft.Extensions.Logging;
 using Newtonsoft.Json;
 
+using static FarmmapsApiSamples.Constants;
+
 namespace FarmmapsHaulmkilling
 {
     public class HaulmkillingApplication : IApplication
@@ -78,17 +80,47 @@ namespace FarmmapsHaulmkilling
                 cropfieldItem = await _farmmapsApiService.GetItemAsync(_settings.CropfieldItemCode);
             }
 
-            if (!_settings.ProcessedSatellite)
+            ItemTaskStatus taskStatus;
+            if (!string.IsNullOrEmpty(_settings.SatelliteTaskCode))
             {
                 _logger.LogInformation("Gathering satellite information for cropfield, this might take a while!");
-                var taskStatus = await _generalService.RunAndWaitForTask(cropfieldItem, "vnd.farmmaps.task.satellite", null, 20);
+                taskStatus = await _generalService.RunAndWaitForTask(cropfieldItem, SATELLITE_TASK, null, 20);
 
-                _settings.ProcessedSatellite = taskStatus.State == ItemTaskState.Ok;
+                if (taskStatus.State == ItemTaskState.Error)
+                {
+                    _logger.LogError($"Something went wrong when trying to process satellite data; {taskStatus.Message}");
+                    return;
+                }
+
+                _settings.SatelliteTaskCode = taskStatus.Code;
                 SaveSettings();
 
             }
+            else
+            {
+                taskStatus = await _farmmapsApiService.GetTaskStatusAsync(_settings.CropfieldItemCode, _settings.SatelliteTaskCode);
+            }
 
             // find ndvi or wdvi satellite data geotiffs
+            var temporalITem = await _generalService.FindChildItemAsync(cropfieldItem.Code, TEMPORAL_ITEMTYPE,
+                "Cropfield VRA Haulmkilling, Satellite", item => item.SourceTask == SATELLITE_TASK && 
+                                                                 taskStatus.Finished >= item.Created && 
+                                                                 taskStatus.Finished <= item.Created.Value.AddHours(1));
+            
+            if (temporalITem == null)
+            {
+                _logger.LogError($"Temporal item not found");
+                return;
+            }
+
+            var satelliteTiffs = await _farmmapsApiService.GetItemChildrenAsync(temporalITem.Code);
+            var firstSatelliteItem = satelliteTiffs.FirstOrDefault();
+
+            if (firstSatelliteItem == null)
+            {
+                _logger.LogError($"Satellite item not found");
+                return;
+            }
 
             // create haulmkilling application map
 
diff --git a/FarmmapsHaulmkilling/Models/Settings.cs b/FarmmapsHaulmkilling/Models/Settings.cs
index 6093495..68925ef 100644
--- a/FarmmapsHaulmkilling/Models/Settings.cs
+++ b/FarmmapsHaulmkilling/Models/Settings.cs
@@ -3,6 +3,6 @@ namespace FarmmapsHaulmkilling.Models
     public class Settings
     {
         public string CropfieldItemCode { get; set; }
-        public bool ProcessedSatellite { get; set; }
+        public string SatelliteTaskCode { get; set; }
     }
 }
\ No newline at end of file