refactor: Add AllKnowing comp, separate paper and events

Content.Shared/_CP14/Knowledge/CP14KnowledgePaperTextSystem.cs

@@ -0,0 +1,62 @@
+using System.Text;
+using Content.Shared._CP14.Knowledge.Components;
+using Content.Shared.Paper;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared._CP14.Knowledge;
+
+public sealed class CP14KnowledgePaperTextSystem : EntitySystem
+{
+    [Dependency] private readonly IPrototypeManager _prototype = default!;
+    [Dependency] private readonly PaperSystem _paper = default!;
+
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<CP14KnowledgePaperTextComponent, MapInitEvent>(OnPaperMapInit);
+    }
+
+    private void OnPaperMapInit(Entity<CP14KnowledgePaperTextComponent> ent, ref MapInitEvent args)
+    {
+        if (!TryComp<PaperComponent>(ent, out var paperComponent))
+            return;
+
+        var paper = new Entity<PaperComponent>(ent, paperComponent);
+
+        if (!TryComp<CP14KnowledgeLearningSourceComponent>(ent, out var knowledge))
+            return;
+
+        if (knowledge.Knowledge.Count == 0)
+            return;
+
+        var content = GenerateText(knowledge);
+
+        _paper.SetContent(paper, content);
+        paper.Comp.EditingDisabled = true;
+
+        // Yes we need to do synchronization after such changes,
+        // yes predict, but we need to
+        Dirty(paper);
+    }
+
+    private string GenerateText(CP14KnowledgeLearningSourceComponent source)
+    {
+        var stringBuilder = new StringBuilder();
+
+        // Header
+        stringBuilder.Append(Loc.GetString("cp14-knowledge-book-pre-text"));
+
+        // Main body
+        foreach (var prototypeId in source.Knowledge)
+        {
+            if (!_prototype.TryIndex(prototypeId, out var indexedKnowledge))
+                continue;
+
+            stringBuilder.Append($"\n{Loc.GetString(indexedKnowledge.Desc)}");
+        }
+
+        // Footer
+        stringBuilder.Append($"\n\n{Loc.GetString("cp14-knowledge-book-post-text")}");
+
+        return stringBuilder.ToString();
+    }
+}