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using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Library.Validators
{
class PeoplePostScanTask : ILibraryPostScanTask
{
/// <summary>
/// The _library manager
/// </summary>
private readonly ILibraryManager _libraryManager;
/// <summary>
/// The _user manager
/// </summary>
private readonly IUserManager _userManager;
/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
public PeoplePostScanTask(ILibraryManager libraryManager, IUserManager userManager, ILogger logger)
{
_libraryManager = libraryManager;
_userManager = userManager;
_logger = logger;
}
/// <summary>
/// Runs the specified progress.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task Run(IProgress<double> progress, CancellationToken cancellationToken)
{
var allItems = _libraryManager.RootFolder.RecursiveChildren.ToList();
var userLibraries = _userManager.Users
.Select(i => new Tuple<Guid, List<BaseItem>>(i.Id, i.RootFolder.GetRecursiveChildren(i).ToList()))
.ToList();
var allLibraryItems = allItems;
var masterDictionary = new Dictionary<string, Dictionary<Guid, Dictionary<string, int>>>(StringComparer.OrdinalIgnoreCase);
// Populate counts of items
SetItemCounts(null, allLibraryItems, masterDictionary);
progress.Report(2);
var numComplete = 0;
foreach (var lib in userLibraries)
{
cancellationToken.ThrowIfCancellationRequested();
SetItemCounts(lib.Item1, lib.Item2, masterDictionary);
numComplete++;
double percent = numComplete;
percent /= userLibraries.Count;
percent *= 8;
progress.Report(percent);
}
progress.Report(10);
var names = masterDictionary.Keys.ToList();
numComplete = 0;
foreach (var name in names)
{
cancellationToken.ThrowIfCancellationRequested();
try
{
await UpdateItemByNameCounts(name, masterDictionary[name]).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.ErrorException("Error updating counts for {0}", ex, name);
}
numComplete++;
double percent = numComplete;
percent /= names.Count;
percent *= 90;
progress.Report(percent + 10);
}
progress.Report(100);
}
private async Task UpdateItemByNameCounts(string name, Dictionary<Guid, Dictionary<string, int>> counts)
{
var itemByName = await _libraryManager.GetPerson(name).ConfigureAwait(false);
foreach (var libraryId in counts.Keys.ToList())
{
var itemCounts = CountHelpers.GetCounts(counts[libraryId]);
if (libraryId == Guid.Empty)
{
itemByName.ItemCounts = itemCounts;
}
else
{
itemByName.UserItemCounts[libraryId] = itemCounts;
}
}
}
private void SetItemCounts(Guid? userId, IEnumerable<BaseItem> allItems, Dictionary<string, Dictionary<Guid, Dictionary<string, int>>> masterDictionary)
{
foreach (var media in allItems)
{
var names = media
.People.Select(i => i.Name)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
CountHelpers.SetItemCounts(userId, media, names, masterDictionary);
}
}
}
}
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