refactor: Handle missing items causing systems not to load (#76)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "fabricate",
-  "version": "0.7.3",
+  "version": "0.7.4",
   "description": "A system-agnostic, flexible crafting module for FoundryVT",
   "main": "index.js",
   "scripts": {

src/module.json

@@ -1,7 +1,7 @@
 {
   "id": "fabricate",
   "title": "Fabricate",
-  "version": "0.7.3",
+  "version": "0.7.4",
   "description": "A system-agnostic, flexible crafting module for FoundryVTT",
   "authors": [
     {

src/scripts/interface/apps/EditCraftingSystemDetailDialog.ts

@@ -119,7 +119,7 @@ class CraftingSystemDetailSubmissionHandler implements SubmissionHandler<Craftin
     }
 
     validate(formData: CraftingSystemDetailsJson): FormError[] {
-                const GAME = new GameProvider().globalGameObject();
+        const GAME = new GameProvider().globalGameObject();
         const errors: Array<FormError> = [];
         if (!formData.name || formData.name.length === 0) {
             errors.push({

src/scripts/interface/apps/core/Applications.ts

@@ -144,7 +144,7 @@ class DefaultDropHandler<V, M, S extends StateManager<V, M>> implements DropHand
         const actionData: ActionData = {
             action: targetData.get("dropTrigger"),
                 event: dropEvent,
-            data : null,
+            data : new Map<string, string>(targetData),
             document: null,
             checked: false,
             keys: {
@@ -154,16 +154,14 @@ class DefaultDropHandler<V, M, S extends StateManager<V, M>> implements DropHand
             }
         }
         if (rawJsonDropData) {
-            const data = new Map<string, string>(targetData);
             try {
                 const dropData: any = JSON.parse(rawJsonDropData);
                 Object.entries(dropData).forEach(entry => {
-                    if (data.has(entry[0])) {
+                    if (actionData.data.has(entry[0])) {
                         console.warn(`The data key "${entry[0]}" exists in both the source and target. Overwriting source value with target value. `);
                     }
-                    data.set(entry[0], <string>entry[1]);
+                    actionData.data.set(entry[0], <string>entry[1]);
                 });
-                actionData.data = data;
             } catch (e: any) {
                 console.error(`Something was dropped onto a Fabricate Drop Zone, but the event data could not be read. Caused by ${e}`);
             }
@@ -174,6 +172,9 @@ class DefaultDropHandler<V, M, S extends StateManager<V, M>> implements DropHand
                 if (Properties.module.documents.supportedTypes.indexOf(dropData.type) >= 0) {
                     const document: any = await new DefaultDocumentManager().getDocumentByUuid(dropData.uuid);
                     actionData.document = document;
+                    if (document) {
+                        actionData.data.set("partId", document.uuid);
+                    }
                 }
             } catch (e: any) {
                 console.error(`Something was dropped onto a Fabricate Drop Zone, but the event data could not be read. Caused by ${e}`);

src/scripts/module.ts

@@ -9,6 +9,13 @@ import {CraftingSystemJson} from "./system/CraftingSystem";
 import {ApplicationWindow, ItemSheetExtension} from "./interface/apps/core/Applications";
 import {FabricateItemSheetTab} from "./interface/FabricateItemSheetTab";
 
+// `app` is an unknown type. Will need to consult foundry docs or crawl `foundry.js` to figure out what it is, but it seems JQuery related
+// `id` is useless to Fabricate
+Hooks.on("deleteItem", async (item: any, _app: unknown, _id: string) => {
+    console.log(`Item UUID ${item.uuid} deleted`);
+    await FabricateApplication.systemRegistry.handleItemDeleted(item.uuid);
+});
+
 Hooks.on("renderSidebarTab", async (app: any, html: any) => {
     const GAME = new GameProvider().globalGameObject();
     if (!(app instanceof ItemDirectory) || !GAME.user.isGM) {

src/scripts/registries/SystemRegistry.ts

@@ -29,6 +29,7 @@ interface SystemRegistry {
 
     createCraftingSystem(systemDefinition: CraftingSystemJson): Promise<CraftingSystem>;
 
+    handleItemDeleted(uuid: string): Promise<void>;
 }
 
 enum ErrorDecisionType {
@@ -177,6 +178,52 @@ class DefaultSystemRegistry implements SystemRegistry {
         const craftingSystem = await this._craftingSystemFactory.make(systemDefinition);
         return this.saveCraftingSystem(craftingSystem);
     }
+
+    public async handleItemDeleted(uuid: string): Promise<void> {
+        const systemsJson = await this._settingsManager.read();
+        let referenceCount = 0;
+        let recipeCount = 0;
+        let componentCount = 0;
+        Object.values(systemsJson).forEach(craftingSystemJson => {
+            if (craftingSystemJson.parts.components[uuid]) {
+                delete craftingSystemJson.parts.components[uuid];
+                componentCount++;
+            }
+            Object.values(craftingSystemJson.parts.components)
+                .forEach(componentJson => {
+                    if (componentJson.salvage[uuid]) {
+                        delete componentJson.salvage[uuid];
+                        referenceCount++;
+                    }
+                });
+            if (craftingSystemJson.parts.recipes[uuid]) {
+                delete craftingSystemJson.parts.recipes[uuid];
+                recipeCount++;
+            }
+            Object.values(craftingSystemJson.parts.recipes)
+                .forEach(recipeJson => {
+                    if (recipeJson.catalysts[uuid]) {
+                        delete recipeJson.catalysts[uuid];
+                        referenceCount++;
+                    }
+                    recipeJson.ingredientGroups.forEach(ingredientGroup => {
+                        if (ingredientGroup[uuid]) {
+                            delete ingredientGroup[uuid];
+                            referenceCount++;
+                        }
+                    });
+                    recipeJson.resultGroups.forEach(ingredientGroup => {
+                        if (ingredientGroup[uuid]) {
+                            delete ingredientGroup[uuid];
+                            referenceCount++;
+                        }
+                    });
+                });
+        });
+        await this._settingsManager.write(systemsJson);
+        console.info(`Deleted ${recipeCount} Recipes, ${componentCount} Components and ${referenceCount} references to the Item with UUID ${uuid} across ${Object.keys(systemsJson).length} Crafting Systems. `);
+    }
+
 }
 
 export { SystemRegistry, DefaultSystemRegistry, ErrorDecisionType }

test/PartDictionary.test.ts

@@ -1,7 +1,7 @@
 import {beforeEach, describe, expect, test} from "@jest/globals";
 import * as Sinon from "sinon";
 
-import {ErrorDecisionType, PartDictionary, PartDictionaryFactory} from "../src/scripts/system/PartDictionary";
+import {PartDictionary, PartDictionaryFactory} from "../src/scripts/system/PartDictionary";
 import {
     testComponentFive,
     testComponentFour,