Make attributes rollable using Foundry macros

module/apps/PlayerSheet.mjs

@@ -37,6 +37,7 @@ export class PlayerSheet extends
 			createEmbeddedItem: this.#createEmbeddedItem,
 			configureSheet: this.#configureSheet,
 			toggleExpand: this.#toggleExpand,
+			executeTrigger: this.#executeTrigger,
 		},
 	};
 
@@ -462,5 +463,16 @@ export class PlayerSheet extends
 		const item = await Item.create(data, { parent: this.actor });
 		item?.sheet?.render({ force: true });
 	};
+
+	/**
+	 * Executes an embedded item's triggering Macro if it has one attached to it.
+	 *
+	 * @this {PlayerSheet}
+	 */
+	static async #executeTrigger(event, target) {
+		const { itemUuid } = target.closest(`[data-item-uuid]`)?.dataset ?? {};
+		const item = await fromUuid(itemUuid);
+		await item?.system.execute?.();
+	};
 	// #endregion Actions
 };

module/data/Item/attribute.mjs

@@ -5,7 +5,7 @@ import { clamp } from "../../utils/clamp.mjs";
 const { getProperty, hasProperty, setProperty } = foundry.utils;
 
 export class AttributeItemData extends foundry.abstract.TypeDataModel {
-	// #region Schema
+	// MARK: Schema
 	static defineSchema() {
 		const fields = foundry.data.fields;
 		return {
@@ -43,7 +43,6 @@ export class AttributeItemData extends foundry.abstract.TypeDataModel {
 			}),
 		};
 	};
-	// #endregion Schema
 
 	// #region Lifecycle
 	async _preCreate(data, options, user) {
@@ -123,5 +122,30 @@ export class AttributeItemData extends foundry.abstract.TypeDataModel {
 		};
 		return null;
 	};
+
+	/**
+	 * Executes the macro associated with this item, if the macro cannot be
+	 * found or if the user does not permission to execute it, it will not be
+	 * executed. This also provides some extra context into the roll data for chat
+	 * macros, so that they can refer to the min/value/max properties of this
+	 * specific item without actually needing to know which item called the macro.
+	 */
+	async execute() {
+		const macro = await fromUuid(this.trigger);
+		if (!macro || !macro.canExecute) { return };
+
+		// Provide the chat-specific context when required
+		if (macro.type === `chat`) {
+			Hooks.once(`taf.getRollData`, (data) => {
+				data.active = {
+					min: this.min,
+					value: this.value,
+					max: this.max,
+				};
+			});
+		};
+
+		await macro?.execute({ item });
+	};
 	// #endregion Methods
 };

module/data/Item/generic.mjs

@@ -1,6 +1,7 @@
 import { toPrecision } from "../../utils/roundToPrecision.mjs";
 
 export class GenericItemData extends foundry.abstract.TypeDataModel {
+	// MARK: Schema
 	static defineSchema() {
 		const fields = foundry.data.fields;
 		return {
@@ -35,6 +36,7 @@ export class GenericItemData extends foundry.abstract.TypeDataModel {
 		};
 	};
 
+	// #region Methods
 	/**
 	 * Calculates the total weight of the item based on the quantity of it, this
 	 * rounds the number to the nearest 2 decimal places.
@@ -43,4 +45,29 @@ export class GenericItemData extends foundry.abstract.TypeDataModel {
 		const value = this.weight * this.quantity;
 		return toPrecision(Math.max(value, 0), 2);
 	};
+
+	/**
+	 * Executes the macro associated with this item, if the macro cannot be
+	 * found or if the user does not permission to execute it, it will not be
+	 * executed. This also provides some extra context into the roll data for chat
+	 * macros, so that they can refer to some properties of this specific item
+	 * without actually needing to know which item called the macro.
+	 */
+	async execute() {
+		const macro = await fromUuid(this.trigger);
+		if (!macro || !macro.canExecute) { return };
+
+		// Provide the chat-specific context when required
+		if (macro.type === `chat`) {
+			Hooks.once(`taf.getRollData`, (data) => {
+				data.active = {
+					quantity: this.quantity,
+					equipped: this.equipped ? 1 : 0,
+				};
+			});
+		};
+
+		await macro?.execute({ item });
+	};
+	// #endregion Methods
 };

module/documents/Actor.mjs

@@ -66,28 +66,12 @@ export class TAFActor extends Actor {
 
 	// #region Roll Data
 	getRollData() {
-		/*
-		All properties assigned during this phase of the roll data prep can potentially
-		be overridden by users creating attributes of the same key, if users shouldn't
-		be able to override, assign the property before the return of this function.
-		*/
 		const data = {
 			carryCapacity: this.system.carryCapacity ?? null,
+			...this.system.attr,
 		};
 
-		if (`attr` in this.system) {
-			for (const attrID in this.system.attr) {
-				const attr = this.system.attr[attrID];
-				if (attr.isRange) {
-					data[attrID] = {
-						value: attr.value,
-						max: attr.max,
-					};
-				} else {
-					data[attrID] = attr.value;
-				};
-			};
-		};
+		Hooks.call(`taf.getRollData`, data, this);
 
 		return data;
 	};

templates/PlayerSheet/primary-attributes.hbs

@@ -6,7 +6,16 @@
 				data-foreign-uuid="{{ attr.uuid }}"
 			>
 				<legend>
+					{{#if attr.system.trigger}}
+						<button
+							type="button"
+							data-action="executeTrigger"
+						>
 							{{ attr.name }}
+						</button>
+					{{else}}
+						{{ attr.name }}
+					{{/if}}
 				</legend>
 				<div class="attr-range">
 					{{#if attr.system.isRange }}

templates/PlayerSheet/tabs/attributes/attribute.hbs

@@ -5,6 +5,14 @@
 	<div class="title grow">
 		<span class="name">{{ name }}</span>
 	</div>
+	{{#if system.trigger}}
+		<button
+			type="button"
+			data-action="executeTrigger"
+		>
+			Roll
+		</button>
+	{{/if}}
 	<input
 		type="number"
 		id="{{uuid}}-value"