FarmMapsApiClient/FarmmapsHaulmkilling/HaulmkillingService.cs

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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;
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namespace FarmmapsHaulmkilling
{
public class HaulmkillingService
{
private readonly ILogger<HaulmkillingService> _logger;
private readonly FarmmapsApiService _farmmapsApiService;
private readonly GeneralService _generalService;
public HaulmkillingService(ILogger<HaulmkillingService> logger, FarmmapsApiService farmmapsApiService,
GeneralService generalService)
{
_logger = logger;
_farmmapsApiService = farmmapsApiService;
_generalService = generalService;
}
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/// <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";
var vraHerbicideDataItems = await _farmmapsApiService.GetItemsAsync(string.Empty, itemType);
var item = vraHerbicideDataItems.FirstOrDefault();
if (item == null)
return null;
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;
}
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}
}