Chem guidebook (#17123)

* im good at atomizing. welcome to half-finished chem guides.

* wagh

* e

* save work

* aa

* woweee UI

* finishing the last of it

* don't actually update the engine :(

---------

Co-authored-by: moonheart08 <moonheart08@users.noreply.github.com>

Content.Shared/Chemistry/Reagent/ReagentEffect.cs

@@ -1,8 +1,11 @@
-using System.Text.Json.Serialization;
+using System.Linq;
+using System.Text.Json.Serialization;
 using Content.Shared.Chemistry.Components;
 using Content.Shared.Database;
 using Content.Shared.FixedPoint;
+using Content.Shared.Localizations;
 using JetBrains.Annotations;
+using Robust.Shared.Prototypes;
 using Robust.Shared.Random;
 
 namespace Content.Shared.Chemistry.Reagent
@@ -23,6 +26,10 @@ namespace Content.Shared.Chemistry.Reagent
         [DataField("conditions")]
         public ReagentEffectCondition[]? Conditions;
 
+        public virtual string ReagentEffectFormat => "guidebook-reagent-effect-description";
+
+        protected abstract string? ReagentEffectGuidebookText(IPrototypeManager prototype, IEntitySystemManager entSys); // => Loc.GetString("reagent-effect-guidebook-missing", ("chance", Probability));
+
         /// <summary>
         ///     What's the chance, from 0 to 1, that this effect will occur?
         /// </summary>
@@ -42,6 +49,23 @@ namespace Content.Shared.Chemistry.Reagent
         public virtual bool ShouldLog { get; } = false;
 
         public abstract void Effect(ReagentEffectArgs args);
+
+        /// <summary>
+        /// Produces a localized, bbcode'd guidebook description for this effect.
+        /// </summary>
+        /// <returns></returns>
+        public string? GuidebookEffectDescription(IPrototypeManager prototype, IEntitySystemManager entSys)
+        {
+            var effect = ReagentEffectGuidebookText(prototype, entSys);
+            if (effect is null)
+                return null;
+
+            return Loc.GetString(ReagentEffectFormat, ("effect", effect), ("chance", Probability),
+                ("conditionCount", Conditions?.Length ?? 0),
+                ("conditions",
+                    ContentLocalizationManager.FormatList(Conditions?.Select(x => x.GuidebookExplanation(prototype)).ToList() ??
+                                                          new List<string>())));
+        }
     }
 
     public static class ReagentEffectExt