Remove most category getters from non-document spellcasting entries

src/module/actor/creature/document.ts

@@ -373,7 +373,7 @@ abstract class CreaturePF2e<
             // PC1 p.298, When you gain an innate spell, you become trained in the spell attack modifier
             // and spell DC statistics. At 12th level, these proficiencies increase to expert.
             const actualSpellcasting = this.spellcasting.filter((e) => e.system && !e.system?.proficiency.slug);
-            if (actualSpellcasting.some((e) => e.isInnate)) {
+            if (actualSpellcasting.some((e) => e.category === "innate")) {
                 spellcasting.rank = Math.max(spellcasting.rank, this.level >= 12 ? 2 : 1) as ZeroToFour;
             } else if (actualSpellcasting.length) {
                 // If you can cast spells using spellcasting prof, you logically need to be at least trained
@@ -392,10 +392,8 @@ abstract class CreaturePF2e<
     }
 
     protected override prepareDataFromItems(): void {
-        this.spellcasting = new ActorSpellcasting(this, [
-            ...this.itemTypes.spellcastingEntry,
-            new RitualSpellcasting(this),
-        ]);
+        this.spellcasting ??= new ActorSpellcasting(this);
+        this.spellcasting.initialize([...this.itemTypes.spellcastingEntry, new RitualSpellcasting(this)]);
 
         super.prepareDataFromItems();
     }

src/module/actor/creature/sheet.ts

@@ -323,7 +323,7 @@ abstract class CreatureSheetPF2e<TActor extends CreaturePF2e> extends ActorSheet
             // Confirm whether this is a swap and execute if so
             const { collectionId, groupId, slotIndex } = spellFrom;
             const collection = this.actor.spellcasting.collections.get(spellFrom.collectionId, { strict: true });
-            const isPrepared = collection.entry.isPrepared;
+            const isPrepared = collection.entry.category === "prepared";
             const collectionEl = htmlClosest(event.target, "[data-container-id]");
             const sameCollectionId = collectionId === collectionEl?.dataset.containerId;
 

src/module/actor/spellcasting.ts

@@ -22,10 +22,19 @@ export class ActorSpellcasting<TActor extends ActorPF2e> extends DelegatedCollec
     /** Cache of trick magic item entries */
     #trickEntries: Record<string, BaseSpellcastingEntry<TActor> | undefined> = {};
 
-    constructor(actor: TActor, entries: BaseSpellcastingEntry<TActor>[]) {
-        super(entries.map((entry) => [entry.id, entry]));
+    constructor(actor: TActor) {
+        super();
         this.actor = actor;
+    }
+
+    /** Initializes spellcasting data. Must be called every data preparation */
+    initialize(entries: BaseSpellcastingEntry<TActor>[]): void {
+        this.clear();
+        for (const entry of entries) {
+            this.set(entry.id, entry);
+        }
 
+        this.collections.clear();
         for (const entry of entries) {
             if (entry.spells) this.collections.set(entry.spells.id, entry.spells);
         }

src/module/apps/compendium-browser/browser.ts

@@ -236,7 +236,7 @@ class CompendiumBrowser extends SvelteApplicationMixin(foundry.applications.api.
             filter.checkboxes.category.selected.push(category);
         }
 
-        if (entry.isRitual || entry.isFocusPool) {
+        if (entry.category === "ritual" || entry.isFocusPool) {
             filter.checkboxes.category.options[entry.category].selected = true;
             filter.checkboxes.category.selected.push(entry.category);
         }
@@ -247,13 +247,13 @@ class CompendiumBrowser extends SvelteApplicationMixin(foundry.applications.api.
                 filter.checkboxes.rank.options[rank].selected = true;
                 filter.checkboxes.rank.selected.push(rank);
             }
-            if ((entry.isPrepared || entry.isSpontaneous || entry.isInnate) && !category) {
+            if (["prepared", "spontaneous", "innate"].includes(entry.category) && !category) {
                 filter.checkboxes.category.options["spell"].selected = true;
                 filter.checkboxes.category.selected.push("spell");
             }
         }
 
-        if (entry.tradition && !entry.isFocusPool && !entry.isRitual) {
+        if (entry.tradition && !entry.isFocusPool && entry.category !== "ritual") {
             traditions.options[entry.tradition].selected = true;
             traditions.selected.push(entry.tradition);
         }

src/module/item/spell/document.ts

@@ -675,7 +675,7 @@ class SpellPF2e<TParent extends ActorPF2e | null = ActorPF2e | null> extends Ite
     }
 
     override prepareSiblingData(this: SpellPF2e<ActorPF2e>): void {
-        if (this.spellcasting?.isInnate) {
+        if (this.spellcasting?.category === "innate") {
             fu.mergeObject(this.system.location, { uses: { value: 1, max: 1 } }, { overwrite: false });
         }
     }
@@ -706,7 +706,7 @@ class SpellPF2e<TParent extends ActorPF2e | null = ActorPF2e | null> extends Ite
             spellOptions.add(`${prefix}:trait:${spellcasting.tradition}`);
         }
 
-        const entryHasSlots = !!(spellcasting?.isPrepared || spellcasting?.isSpontaneous);
+        const entryHasSlots = ["prepared", "spontaneous"].includes(spellcasting?.category ?? "");
         if (entryHasSlots && !this.isCantrip && !this.parentItem) {
             spellOptions.add(`${prefix}:spell-slot`);
         }
@@ -725,7 +725,7 @@ class SpellPF2e<TParent extends ActorPF2e | null = ActorPF2e | null> extends Ite
             spellOptions.add(`${prefix}:frequency:limited`);
         }
 
-        if (spellcasting?.isSpontaneous && this.system.location.signature) {
+        if (spellcasting?.category === "spontaneous" && this.system.location.signature) {
             spellOptions.add(`${prefix}:signature`);
         }
 

src/module/item/spellcasting-entry/collection.ts

@@ -54,7 +54,7 @@ class SpellCollection<TActor extends ActorPF2e> extends Collection<SpellPF2e<TAc
         }
 
         const isStandardSpell = !(spell.isCantrip || spell.isFocusSpell || spell.isRitual);
-        const canHeighten = isStandardSpell && (this.entry.isSpontaneous || this.entry.isInnate);
+        const canHeighten = isStandardSpell && ["innate", "spontaneous"].includes(this.entry.category);
 
         // Only allow a different slot rank if the spell can heighten
         const groupId = options?.groupId;
@@ -246,6 +246,7 @@ class SpellCollection<TActor extends ActorPF2e> extends Collection<SpellPF2e<TAc
             // Everything else (Innate/Spontaneous/Ritual)
             const alwaysShowHeader = !this.entry.isRitual;
             const spellsByRank = groupBy(spells, (spell) => (spell.isCantrip ? 0 : spell.rank));
+            const isInnate = this.entry.category === "innate";
             for (let rank = 0 as ZeroToTen; rank <= this.highestRank; rank++) {
                 const data = this.entry.system.slots[`slot${rank}`];
                 const spells = spellsByRank.get(rank) ?? [];
@@ -254,8 +255,8 @@ class SpellCollection<TActor extends ActorPF2e> extends Collection<SpellPF2e<TAc
                         this.entry.isSpontaneous && rank !== 0 ? { value: data.value, max: data.max } : undefined;
                     const active = spells.map((spell) => ({
                         spell,
-                        expended: this.entry.isInnate && !spell.system.location.uses?.value,
-                        uses: this.entry.isInnate && !spell.atWill ? spell.system.location.uses : undefined,
+                        expended: isInnate && !spell.system.location.uses?.value,
+                        uses: isInnate && !spell.atWill ? spell.system.location.uses : undefined,
                     }));
 
                     // These entries hide if there are no active spells at that level, or if there are no spell slots
@@ -349,7 +350,7 @@ class SpellCollection<TActor extends ActorPF2e> extends Collection<SpellPF2e<TAc
     protected getSpellPrepList(spells: SpellPF2e<TActor>[]): Record<ZeroToTen, SpellPrepEntry[]> {
         const indices = Array.fromRange(11) as ZeroToTen[];
         const prepList: Record<ZeroToTen, SpellPrepEntry[]> = R.mapToObj(indices, (i) => [i, []]);
-        if (!this.entry.isPrepared) return prepList;
+        if (this.entry.category !== "prepared") return prepList;
 
         for (const spell of spells) {
             if (spell.isCantrip) {

src/module/item/spellcasting-entry/item-spellcasting.ts

@@ -61,22 +61,6 @@ class ItemSpellcasting<TActor extends CreaturePF2e = CreaturePF2e> implements Sp
         return false;
     }
 
-    get isInnate(): false {
-        return false;
-    }
-
-    get isPrepared(): false {
-        return false;
-    }
-
-    get isSpontaneous(): false {
-        return false;
-    }
-
-    get isRitual(): false {
-        return false;
-    }
-
     get isEphemeral(): true {
         return true;
     }
@@ -103,18 +87,7 @@ class ItemSpellcasting<TActor extends CreaturePF2e = CreaturePF2e> implements Sp
         const collectionData: SpellCollectionData = (await spells?.getSpellData()) ?? { groups: [], prepList: null };
 
         return {
-            ...R.pick(this, [
-                "category",
-                "tradition",
-                "sort",
-                "isFlexible",
-                "isFocusPool",
-                "isInnate",
-                "isPrepared",
-                "isRitual",
-                "isSpontaneous",
-                "isEphemeral",
-            ]),
+            ...R.pick(this, ["category", "tradition", "sort", "isFlexible", "isFocusPool", "isEphemeral"]),
             ...collectionData,
             id: spells?.id ?? this.id,
             name: spells?.name ?? this.name,

src/module/item/spellcasting-entry/rituals.ts

@@ -46,22 +46,10 @@ export class RitualSpellcasting<TActor extends ActorPF2e> implements BaseSpellca
         return false;
     }
 
-    get isInnate(): false {
-        return false;
-    }
-
-    get isPrepared(): false {
-        return false;
-    }
-
     get isRitual(): true {
         return true;
     }
 
-    get isSpontaneous(): false {
-        return false;
-    }
-
     get isEphemeral(): true {
         return true;
     }

src/module/item/spellcasting-entry/trick.ts

@@ -128,22 +128,6 @@ class TrickMagicItemEntry<TActor extends ActorPF2e = ActorPF2e> implements Spell
         return false;
     }
 
-    get isInnate(): false {
-        return false;
-    }
-
-    get isPrepared(): false {
-        return false;
-    }
-
-    get isRitual(): false {
-        return false;
-    }
-
-    get isSpontaneous(): false {
-        return false;
-    }
-
     get isEphemeral(): true {
         return true;
     }

src/module/item/spellcasting-entry/types.ts

@@ -17,10 +17,6 @@ interface BaseSpellcastingEntry<TActor extends ActorPF2e | null = ActorPF2e | nu
     attribute?: Maybe<AttributeString>;
     isFlexible: boolean;
     isFocusPool: boolean;
-    isInnate: boolean;
-    isPrepared: boolean;
-    isRitual: boolean;
-    isSpontaneous: boolean;
     isEphemeral: boolean;
     statistic?: Statistic | null;
     /** A related but more-limited statistic for making counteract checks */