Move components to more appropriate spot

osu.Game/Rulesets/Edit/Checks/Components/Issue.cs

@@ -0,0 +1,86 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using osu.Game.Extensions;
+using osu.Game.Rulesets.Objects;
+
+namespace osu.Game.Rulesets.Edit.Checks.Components
+{
+    public class Issue
+    {
+        /// <summary>
+        /// The time which this issue is associated with, if any, otherwise null.
+        /// </summary>
+        public double? Time;
+
+        /// <summary>
+        /// The hitobjects which this issue is associated with. Empty by default.
+        /// </summary>
+        public IReadOnlyList<HitObject> HitObjects;
+
+        /// <summary>
+        /// The template which this issue is using. This provides properties
+        /// such as the <see cref="IssueTemplate.IssueType"/>, and the
+        /// <see cref="IssueTemplate.UnformattedMessage"/>.
+        /// </summary>
+        public IssueTemplate Template;
+
+        /// <summary>
+        /// The arguments that give this issue its context, based on the
+        /// <see cref="IssueTemplate"/>. These are then substituted into the
+        /// <see cref="IssueTemplate.UnformattedMessage"/>.
+        /// E.g. timestamps, which diff is being compared to, what some volume is, etc.
+        /// </summary>
+        public object[] Arguments;
+
+        public Issue(IssueTemplate template, params object[] args)
+        {
+            Time = null;
+            HitObjects = Array.Empty<HitObject>();
+            Template = template;
+            Arguments = args;
+
+            if (template.Origin == null)
+            {
+                throw new ArgumentException(
+                    "A template had no origin. Make sure the `Templates()` method contains all templates used."
+                );
+            }
+        }
+
+        public Issue(double? time, IssueTemplate template, params object[] args)
+            : this(template, args)
+        {
+            Time = time;
+        }
+
+        public Issue(HitObject hitObject, IssueTemplate template, params object[] args)
+            : this(template, args)
+        {
+            Time = hitObject.StartTime;
+            HitObjects = new[] { hitObject };
+        }
+
+        public Issue(IEnumerable<HitObject> hitObjects, IssueTemplate template, params object[] args)
+            : this(template, args)
+        {
+            var hitObjectList = hitObjects.ToList();
+
+            Time = hitObjectList.FirstOrDefault()?.StartTime;
+            HitObjects = hitObjectList;
+        }
+
+        public override string ToString()
+        {
+            return Template.Message(Arguments);
+        }
+
+        public string GetEditorTimestamp()
+        {
+            return Time == null ? string.Empty : Time.Value.ToEditorFormattedString();
+        }
+    }
+}