jellyfin/MediaBrowser.Model/Entities/ProviderIdsExtensions.cs
BaronGreenback 2e98de9062
Code Clean up: Convert to null-coalescing operator ?? (#5845)
Co-authored-by: Cody Robibero <cody@robibe.ro>
Co-authored-by: Patrick Barron <18354464+barronpm@users.noreply.github.com>
2021-05-05 13:51:14 +02:00

144 lines
5.2 KiB
C#

using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
namespace MediaBrowser.Model.Entities
{
/// <summary>
/// Class ProviderIdsExtensions.
/// </summary>
public static class ProviderIdsExtensions
{
/// <summary>
/// Checks if this instance has an id for the given provider.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="name">The of the provider name.</param>
/// <returns><c>true</c> if a provider id with the given name was found; otherwise <c>false</c>.</returns>
public static bool HasProviderId(this IHasProviderIds instance, string name)
{
if (instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
return instance.TryGetProviderId(name, out _);
}
/// <summary>
/// Checks if this instance has an id for the given provider.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="provider">The provider.</param>
/// <returns><c>true</c> if a provider id with the given name was found; otherwise <c>false</c>.</returns>
public static bool HasProviderId(this IHasProviderIds instance, MetadataProvider provider)
{
return instance.HasProviderId(provider.ToString());
}
/// <summary>
/// Gets a provider id.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="name">The name.</param>
/// <param name="id">The provider id.</param>
/// <returns><c>true</c> if a provider id with the given name was found; otherwise <c>false</c>.</returns>
public static bool TryGetProviderId(this IHasProviderIds instance, string name, [NotNullWhen(true)] out string? id)
{
if (instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
if (instance.ProviderIds == null)
{
id = null;
return false;
}
var foundProviderId = instance.ProviderIds.TryGetValue(name, out id);
// This occurs when searching with Identify (and possibly in other places)
if (string.IsNullOrEmpty(id))
{
id = null;
foundProviderId = false;
}
return foundProviderId;
}
/// <summary>
/// Gets a provider id.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="provider">The provider.</param>
/// <param name="id">The provider id.</param>
/// <returns><c>true</c> if a provider id with the given name was found; otherwise <c>false</c>.</returns>
public static bool TryGetProviderId(this IHasProviderIds instance, MetadataProvider provider, [NotNullWhen(true)] out string? id)
{
return instance.TryGetProviderId(provider.ToString(), out id);
}
/// <summary>
/// Gets a provider id.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="name">The name.</param>
/// <returns>System.String.</returns>
public static string? GetProviderId(this IHasProviderIds instance, string name)
{
instance.TryGetProviderId(name, out string? id);
return id;
}
/// <summary>
/// Gets a provider id.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="provider">The provider.</param>
/// <returns>System.String.</returns>
public static string? GetProviderId(this IHasProviderIds instance, MetadataProvider provider)
{
return instance.GetProviderId(provider.ToString());
}
/// <summary>
/// Sets a provider id.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="name">The name.</param>
/// <param name="value">The value.</param>
public static void SetProviderId(this IHasProviderIds instance, string name, string value)
{
if (instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
// If it's null remove the key from the dictionary
if (string.IsNullOrEmpty(value))
{
instance.ProviderIds?.Remove(name);
}
else
{
// Ensure it exists
instance.ProviderIds ??= new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
instance.ProviderIds[name] = value;
}
}
/// <summary>
/// Sets a provider id.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="provider">The provider.</param>
/// <param name="value">The value.</param>
public static void SetProviderId(this IHasProviderIds instance, MetadataProvider provider, string value)
{
instance.SetProviderId(provider.ToString(), value);
}
}
}