Android build v1.0.47

android/app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "com.warren.iwanttoheal"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 63
+        versionCode 67
-        versionName "1.0.43"
+        versionName "1.0.47"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         aaptOptions {
              // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.

db/admin-overrides.sql

@@ -455,17 +455,17 @@ INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, d
 INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (1403, 1683005, 5, 100, 1);
 INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (1503, 1783005, 5, 100, 1);
 INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2003, 2283101, 101, 100, 1);
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2103, 2286101, 101, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2103, id, 101, 100, 1 FROM items WHERE slug = 'rathalos-raid-boss-coin-diff-101-ilvl-10';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2203, 2289101, 101, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2203, id, 101, 100, 1 FROM items WHERE slug = 'gypceros-raid-boss-coin-diff-101-ilvl-10';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2303, 783103, 103, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2303, id, 103, 100, 1 FROM items WHERE slug = 'nargacuga-raid-boss-coin-diff-103-ilvl-15';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2403, 786103, 103, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2403, id, 103, 100, 1 FROM items WHERE slug = 'azuros-raid-boss-coin-diff-103-ilvl-15';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2503, 789103, 103, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2503, id, 103, 100, 1 FROM items WHERE slug = 'diablos-raid-boss-coin-diff-103-ilvl-15';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2603, 983104, 104, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2603, id, 104, 100, 1 FROM items WHERE slug = 'barroth-raid-boss-coin-diff-104-ilvl-20';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2703, 986104, 104, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2703, id, 104, 100, 1 FROM items WHERE slug = 'tobi-kadachi-raid-boss-coin-diff-104-ilvl-20';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2803, 989104, 104, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2803, id, 104, 100, 1 FROM items WHERE slug = 'monoblos-raid-boss-coin-diff-104-ilvl-20';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (2903, 1183105, 105, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 2903, id, 105, 100, 1 FROM items WHERE slug = 'anjanath-raid-boss-coin-diff-105-ilvl-25';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (3003, 1186105, 105, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 3003, id, 105, 100, 1 FROM items WHERE slug = 'bazelgeuse-raid-boss-coin-diff-105-ilvl-25';
-INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) VALUES (3103, 1189105, 105, 100, 1);
+INSERT INTO encounter_loot (encounter_id, item_id, difficulty_id, drop_weight, drop_chance) SELECT 3103, id, 105, 100, 1 FROM items WHERE slug = 'odogaron-raid-boss-coin-diff-105-ilvl-25';
 
 UPDATE crafting_recipes SET difficulty_id = 1, source_dungeon_id = 1, source_encounter_id = 103 WHERE id = 1001;
 UPDATE crafting_recipes SET difficulty_id = 1, source_dungeon_id = 1, source_encounter_id = 103 WHERE id = 1002;
@@ -532,42 +532,87 @@ INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (10
 INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1007, 583001, 5);
 INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1008, 583001, 5);
 INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1009, 583001, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1101, 683002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1101, 383002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1102, 683002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1101, 683002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1103, 683002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1102, 383002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1104, 783002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1102, 683002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1105, 783002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1103, 383002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1106, 783002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1103, 683002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1107, 883002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1104, 483002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1108, 883002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1104, 783002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1109, 883002, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1105, 483002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1301, 1283004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1105, 783002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1302, 1283004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1106, 483002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1303, 1283004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1106, 783002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1304, 1383004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1107, 583002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1305, 1383004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1107, 883002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1306, 1383004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1108, 583002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1307, 1483004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1108, 883002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1308, 1483004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1109, 583002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1309, 1483004, 20);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1109, 883002, 5);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1401, 1583005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1201, 683003, 7);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1402, 1583005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1201, 983003, 8);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1403, 1583005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1202, 683003, 7);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1404, 1683005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1202, 983003, 8);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1405, 1683005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1203, 683003, 7);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1406, 1683005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1203, 983003, 8);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1407, 1783005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1204, 783003, 7);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1408, 1783005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1204, 1083003, 8);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1409, 1783005, 25);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1205, 783003, 7);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1205, 1083003, 8);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1206, 783003, 7);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1206, 1083003, 8);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1207, 883003, 7);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1207, 1183003, 8);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1208, 883003, 7);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1208, 1183003, 8);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1209, 883003, 7);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1209, 1183003, 8);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1301, 983004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1301, 1283004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1302, 983004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1302, 1283004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1303, 983004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1303, 1283004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1304, 1083004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1304, 1383004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1305, 1083004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1305, 1383004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1306, 1083004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1306, 1383004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1307, 1183004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1307, 1483004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1308, 1183004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1308, 1483004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1309, 1183004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1309, 1483004, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1401, 1283005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1401, 1583005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1402, 1283005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1402, 1583005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1403, 1283005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1403, 1583005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1404, 1383005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1404, 1683005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1405, 1383005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1405, 1683005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1406, 1383005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1406, 1683005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1407, 1483005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1407, 1783005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1408, 1483005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1408, 1783005, 13);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1409, 1483005, 12);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (1409, 1783005, 13);
 INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2001, 2283101, 10);
 INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2002, 2283101, 10);
 INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2003, 2283101, 10);
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2004, 2286101, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) SELECT 2004, id, 10 FROM items WHERE slug = 'rathalos-raid-boss-coin-diff-101-ilvl-10';
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2005, 2286101, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) SELECT 2005, id, 10 FROM items WHERE slug = 'rathalos-raid-boss-coin-diff-101-ilvl-10';
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2006, 2286101, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) SELECT 2006, id, 10 FROM items WHERE slug = 'rathalos-raid-boss-coin-diff-101-ilvl-10';
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2007, 2289101, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) SELECT 2007, id, 10 FROM items WHERE slug = 'gypceros-raid-boss-coin-diff-101-ilvl-10';
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2008, 2289101, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) SELECT 2008, id, 10 FROM items WHERE slug = 'gypceros-raid-boss-coin-diff-101-ilvl-10';
-INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) VALUES (2009, 2289101, 10);
+INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity) SELECT 2009, id, 10 FROM items WHERE slug = 'gypceros-raid-boss-coin-diff-101-ilvl-10';
 
 DELETE FROM gear_upgrade_paths;
 INSERT INTO gear_upgrade_paths (from_item_id, to_item_id) VALUES (1, 201);

server/admin.mjs

@@ -375,6 +375,31 @@ const server = createServer(async (request, response) => {
           SELECT from_item_id AS fromItemId, to_item_id AS toItemId
           FROM gear_upgrade_paths ORDER BY from_item_id
         `).all()
+        const classes = database.prepare(`
+          SELECT id, slug, name, resource_name AS resourceName,
+            max_resource AS maxResource, theme_color AS themeColor, description
+          FROM classes ORDER BY id
+        `).all()
+        const abilities = database.prepare(`
+          SELECT id, class_id AS classId, slug, name, spell_type AS spellType,
+            resource_cost AS cost, cooldown_seconds AS cooldown, power,
+            unlock_level AS unlockLevel, glyph, description
+          FROM spells ORDER BY class_id, unlock_level, id
+        `).all()
+        const talents = database.prepare(`
+          SELECT talents.id, talents.class_id AS classId, talents.slug, talents.name,
+            talents.max_rank AS maxRank, talents.tier, talents.branch,
+            talents.prerequisite_talent_id AS prerequisiteTalentId,
+            talents.prerequisite_rank AS prerequisiteRank,
+            prerequisite.name AS prerequisiteName,
+            talents.effect_type AS effectType,
+            talents.effect_value_per_rank AS effectValuePerRank,
+            talents.glyph, talents.description
+          FROM talents
+          LEFT JOIN talents AS prerequisite
+            ON prerequisite.id = talents.prerequisite_talent_id
+          ORDER BY talents.class_id, talents.tier, talents.branch
+        `).all()
         sendJson(response, 200, {
           items,
           encounters,
@@ -383,6 +408,11 @@ const server = createServer(async (request, response) => {
           craftingRecipes: [...recipes.values()],
           dungeons,
           gearUpgradePaths,
+          classes: classes.map((gameClass) => ({
+            ...gameClass,
+            abilities: abilities.filter((ability) => ability.classId === gameClass.id),
+            talents: talents.filter((talent) => talent.classId === gameClass.id),
+          })),
         })
         return
       }
@@ -499,12 +529,14 @@ const server = createServer(async (request, response) => {
       const recipeComponents = request.url.match(/^\/api\/admin\/crafting-recipes\/(\d+)\/components$/)
       if (recipeComponents && request.method === 'POST') {
         const payload = await readJson(request)
+        const quantity = Number(payload.quantity)
+        if (!Number.isInteger(quantity) || quantity < 1) throw new Error('Component quantity must be at least 1.')
         database.prepare(`
           INSERT INTO crafting_recipe_components (recipe_id, item_id, quantity)
           VALUES (?, ?, ?)
           ON CONFLICT(recipe_id, item_id)
           DO UPDATE SET quantity = excluded.quantity
-        `).run(Number(recipeComponents[1]), payload.itemId, payload.quantity)
+        `).run(Number(recipeComponents[1]), payload.itemId, quantity)
         writeAdminOverrides(database)
         sendJson(response, 200, { ok: true })
         return

server/game-api.mjs

@@ -858,6 +858,8 @@ export function getProfile(database, characterId, accountId) {
           quantity,
           owned,
         }))
+      const hasRequiredComponents = components.length > 0
+        && components.every((component) => component.quantity > 0)
       const { itemId, slug, name, slot, rarity, itemLevel, healingPower, maxResourceBonus, glyph, description, setId, setSlug, setName } = recipe
       return {
         id: recipe.id,
@@ -880,7 +882,8 @@ export function getProfile(database, characterId, accountId) {
           setName,
         },
         components,
-        canCraft: components.every((component) => component.owned >= component.quantity),
+        canCraft: hasRequiredComponents
+          && components.every((component) => component.owned >= component.quantity),
       }
     }),
     dungeons: dungeons.map((dungeon) => ({
@@ -1746,6 +1749,9 @@ function craftItem(database, characterId, recipeId) {
     WHERE crafting_recipe_components.recipe_id = ?
   `).all(characterId, recipeId)
   if (components.length === 0) throw new Error('That recipe has no component requirements.')
+  if (components.some((component) => component.quantity <= 0)) {
+    throw new Error('Recipe components must require at least one item.')
+  }
   const missing = components.find((component) => component.owned < component.quantity)
   if (missing) {
     const item = itemById(database, missing.itemId)
@@ -1845,6 +1851,10 @@ function upgradeItem(database, characterId, itemId) {
       AND character_inventory.character_id = ?
     WHERE crafting_recipe_components.recipe_id = ?
   `).all(characterId, targetRecipe.id)
+  if (components.length === 0) throw new Error('That upgrade has no component requirements.')
+  if (components.some((component) => component.quantity <= 0)) {
+    throw new Error('Upgrade components must require at least one item.')
+  }
   const missing = components.find((component) => component.owned < component.quantity)
   if (missing) {
     const componentItem = itemById(database, missing.itemId)

src/App.css

@@ -2664,10 +2664,15 @@ h2 {
 
   .crafting-layout {
     gap: 6px;
-    grid-template-columns: minmax(134px, 0.42fr) minmax(248px, 1fr) minmax(190px, 0.72fr);
+    grid-template-columns: minmax(160px, 1fr) minmax(0, 2fr);
     margin-top: 6px;
   }
 
+  .crafting-available-panel {
+    gap: 6px;
+    grid-template-columns: minmax(0, 1.25fr) minmax(170px, 0.75fr);
+  }
+
   .crafting-filters {
     gap: 7px;
   }
@@ -4154,13 +4159,14 @@ h2 {
   display: grid;
   gap: 12px;
   flex: 1;
-  grid-template-columns: minmax(210px, 0.55fr) minmax(360px, 1fr) minmax(320px, 0.85fr);
+  grid-template-columns: minmax(230px, 1fr) minmax(0, 2fr);
   margin-top: 13px;
   min-height: 0;
   overflow: hidden;
 }
 
 .crafting-filters,
+.crafting-available-panel,
 .crafting-list-panel,
 .crafting-detail-panel {
   background: var(--panel-light);
@@ -4177,10 +4183,20 @@ h2 {
   gap: 14px;
 }
 
+.crafting-available-panel {
+  background: transparent;
+  border: 0;
+  display: grid;
+  gap: 12px;
+  grid-template-columns: minmax(360px, 1.05fr) minmax(280px, 0.95fr);
+  outline: 0;
+  padding: 0;
+}
+
 .crafting-filter-grid {
   display: grid;
   gap: 7px;
-  grid-template-columns: repeat(2, minmax(0, 1fr));
+  grid-template-columns: minmax(0, 1fr);
 }
 
 .crafting-filter-grid button,
@@ -6573,7 +6589,8 @@ h2 {
 
   .gear-summary,
   .equipment-layout,
-  .crafting-layout {
+  .crafting-layout,
+  .crafting-available-panel {
     grid-template-columns: 1fr;
   }
 
@@ -7244,9 +7261,203 @@ h2 {
   margin-left: auto;
 }
 
+.admin-class-layout {
+  display: grid;
+  gap: 14px;
+  grid-template-columns: minmax(220px, 0.35fr) minmax(0, 1fr);
+}
+
+.admin-class-list {
+  background: #1c1e25;
+  border: 2px solid #090a0d;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  outline: 2px solid #494754;
+  padding: 12px;
+}
+
+.admin-class-list button {
+  align-items: center;
+  background: var(--panel-light);
+  border: 2px solid #090a0d;
+  color: var(--ink);
+  cursor: pointer;
+  display: grid;
+  gap: 9px;
+  grid-template-columns: 38px 1fr;
+  min-height: 54px;
+  outline: 2px solid #41404a;
+  padding: 8px;
+  text-align: left;
+}
+
+.admin-class-list button.active,
+.admin-class-list button:hover {
+  outline-color: var(--class-color, var(--gold));
+}
+
+.admin-class-list button > span,
+.admin-class-hero > span {
+  align-items: center;
+  background: var(--class-color, var(--gold));
+  color: #111217;
+  display: flex;
+  font-family: 'Press Start 2P', monospace;
+  font-size: 13px;
+  height: 38px;
+  justify-content: center;
+}
+
+.admin-class-list strong,
+.admin-class-list small {
+  display: block;
+}
+
+.admin-class-list small {
+  color: var(--muted);
+  font-size: 12px;
+  margin-top: 3px;
+}
+
+.admin-class-detail {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+  min-width: 0;
+}
+
+.admin-class-hero {
+  align-items: center;
+  background: var(--panel-light);
+  border: 2px solid #090a0d;
+  display: grid;
+  gap: 12px;
+  grid-template-columns: 54px minmax(180px, auto) minmax(0, 1fr);
+  outline: 2px solid #494754;
+  padding: 12px;
+}
+
+.admin-class-hero > span {
+  height: 54px;
+}
+
+.admin-class-hero h2 {
+  font-family: 'Press Start 2P', monospace;
+  font-size: 13px;
+}
+
+.admin-class-hero small,
+.admin-class-hero p {
+  color: var(--muted);
+  font-size: 14px;
+}
+
+.admin-class-table {
+  display: grid;
+  gap: 6px;
+}
+
+.admin-class-table-head,
+.admin-class-row {
+  align-items: center;
+  display: grid;
+  gap: 8px;
+  grid-template-columns: minmax(230px, 1.5fr) minmax(90px, 0.7fr) minmax(110px, 0.6fr) minmax(65px, 0.45fr) minmax(80px, 0.5fr) minmax(70px, 0.45fr);
+}
+
+.admin-class-table-head {
+  color: var(--gold);
+  font-family: 'Press Start 2P', monospace;
+  font-size: 7px;
+  padding: 0 10px;
+  text-transform: uppercase;
+}
+
+.admin-class-row {
+  background: var(--panel-light);
+  border: 2px solid #090a0d;
+  outline: 2px solid #494754;
+  padding: 9px 10px;
+}
+
+.admin-class-row > span {
+  color: var(--muted);
+  font-size: 13px;
+}
+
+.admin-class-row > span:first-child {
+  align-items: center;
+  display: grid;
+  gap: 8px;
+  grid-template-columns: 30px minmax(0, 1fr);
+}
+
+.admin-class-row i {
+  color: var(--gold);
+  font-style: normal;
+  text-align: center;
+}
+
+.admin-class-row strong,
+.admin-class-row small {
+  display: block;
+}
+
+.admin-class-row small {
+  color: var(--muted);
+  font-size: 11px;
+  margin-top: 3px;
+}
+
+.admin-class-talent-grid {
+  display: grid;
+  gap: 8px;
+  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
+}
+
+.admin-class-talent {
+  background: var(--panel-light);
+  border: 2px solid #090a0d;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  outline: 2px solid #494754;
+  padding: 10px;
+}
+
+.admin-class-talent > div {
+  align-items: center;
+  display: flex;
+  gap: 8px;
+}
+
+.admin-class-talent > div > span {
+  color: var(--gold);
+  font-family: 'Press Start 2P', monospace;
+  width: 26px;
+}
+
+.admin-class-talent small,
+.admin-class-talent p {
+  color: var(--muted);
+  font-size: 12px;
+}
+
+.admin-class-talent em {
+  color: var(--green);
+  font-family: 'Press Start 2P', monospace;
+  font-size: 7px;
+  font-style: normal;
+}
+
 @media (max-width: 800px) {
   .admin-upgrade-toolbar,
-  .admin-upgrade-step {
+  .admin-upgrade-step,
+  .admin-class-layout,
+  .admin-class-hero,
+  .admin-class-table-head,
+  .admin-class-row {
     grid-template-columns: 1fr;
   }
 
@@ -7678,15 +7889,18 @@ h2 {
 
   .workshop-shell .crafting-layout {
     gap: 6px;
-    grid-template-columns: minmax(0, 1fr);
+    grid-template-columns: minmax(150px, 1fr) minmax(0, 2fr);
-    grid-template-rows: auto minmax(0, 1fr);
     margin-top: 6px;
   }
 
-  .workshop-shell .crafting-filters {
+  .workshop-shell .crafting-available-panel {
-    display: grid;
+    gap: 6px;
+    grid-template-columns: minmax(0, 1fr);
+  }
+
+  .workshop-shell .crafting-filters {
+    display: flex;
     gap: 6px;
-    grid-template-columns: minmax(0, 1fr) auto;
   }
 
   .workshop-shell .crafting-filter-grid,
@@ -7695,7 +7909,7 @@ h2 {
   }
 
   .workshop-shell .crafting-filter-grid {
-    grid-template-columns: repeat(10, minmax(0, 1fr));
+    grid-template-columns: minmax(0, 1fr);
   }
 
   .workshop-shell .crafting-filter-grid button {
@@ -7985,7 +8199,7 @@ h2 {
   }
 
   .workshop-shell .crafting-layout {
-    grid-template-columns: 110px minmax(0, 1fr) 174px;
+    grid-template-columns: 110px minmax(0, 1fr);
   }
 
   .workshop-shell .crafting-filter-grid {
@@ -8189,7 +8403,7 @@ h2 {
     grid-template-columns: minmax(0, 1fr);
   }
 
-  .workshop-shell .crafting-filters {
+  .workshop-shell .crafting-available-panel {
     grid-template-columns: minmax(0, 1fr);
   }
 

src/components/AdminScreen.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useState } from 'react'
-import type { Dispatch, SetStateAction } from 'react'
+import type { CSSProperties, Dispatch, SetStateAction } from 'react'
 
 type AdminItem = {
   id: number
@@ -76,6 +76,49 @@ type AdminUpgradePath = {
   toItemId: number
 }
 
+type AdminAbility = {
+  id: number
+  classId: number
+  slug: string
+  name: string
+  spellType: string
+  cost: number
+  cooldown: number
+  power: number
+  unlockLevel: number
+  glyph: string
+  description: string
+}
+
+type AdminTalent = {
+  id: number
+  classId: number
+  slug: string
+  name: string
+  maxRank: number
+  tier: number
+  branch: number
+  prerequisiteTalentId: number | null
+  prerequisiteRank: number
+  prerequisiteName: string | null
+  effectType: string
+  effectValuePerRank: number
+  glyph: string
+  description: string
+}
+
+type AdminClass = {
+  id: number
+  slug: string
+  name: string
+  resourceName: string
+  maxResource: number
+  themeColor: string
+  description: string
+  abilities: AdminAbility[]
+  talents: AdminTalent[]
+}
+
 type AdminData = {
   items: AdminItem[]
   encounters: AdminEncounter[]
@@ -84,9 +127,10 @@ type AdminData = {
   craftingRecipes: AdminRecipe[]
   dungeons: AdminDungeon[]
   gearUpgradePaths: AdminUpgradePath[]
+  classes: AdminClass[]
 }
 
-type AdminTab = 'items' | 'dungeons' | 'encounters' | 'loot' | 'crafting' | 'upgrades'
+type AdminTab = 'items' | 'dungeons' | 'encounters' | 'loot' | 'crafting' | 'upgrades' | 'classes'
 type SavingState = Record<string, boolean>
 type SetData = Dispatch<SetStateAction<AdminData | null>>
 type SetSaving = Dispatch<SetStateAction<SavingState>>
@@ -99,6 +143,7 @@ const tabs: { id: AdminTab; label: string }[] = [
   { id: 'loot', label: 'Loot' },
   { id: 'crafting', label: 'Crafting' },
   { id: 'upgrades', label: 'Upgrades' },
+  { id: 'classes', label: 'Classes' },
 ]
 
 async function fetchJson<T>(url: string, init?: RequestInit): Promise<T> {
@@ -143,6 +188,7 @@ export function AdminScreen({ onBack }: { onBack: () => void }) {
       {tab === 'loot' && <LootTab data={data} setData={setData} setSaving={setSaving} saving={saving} />}
       {tab === 'crafting' && <CraftingTab data={data} setData={setData} setSaving={setSaving} saving={saving} />}
       {tab === 'upgrades' && <UpgradesTab data={data} setData={setData} setSaving={setSaving} saving={saving} />}
+      {tab === 'classes' && <ClassesTab data={data} />}
     </section>
   )
 }
@@ -830,7 +876,9 @@ function CraftingTab({ data, setData, setSaving, saving }: {
       )}
 
       <h3 className="admin-loot-title">Required Components</h3>
-      {(!recipe || recipe.components.length === 0) && <p className="admin-empty">No component requirements.</p>}
+      {(!recipe || recipe.components.length === 0) && (
+        <p className="admin-empty">No component requirements. Crafting and upgrades are blocked until materials are added.</p>
+      )}
       <div className="admin-loot-list">
         {recipe?.components.map((comp) => (
           <div key={comp.itemId} className="admin-loot-row">
@@ -981,7 +1029,7 @@ function UpgradesTab({ data, setData, setSaving, saving }: {
                 {target
                   ? `Target requirements: ${targetRecipe && targetRecipe.components.length > 0
                     ? targetRecipe.components.map((component) => `${component.quantity}x ${itemName(data, component.itemId)}`).join(', ')
-                    : 'none'}`
+                    : 'none configured - upgrade blocked until materials are added'}`
                   : 'No next upgrade selected.'}
               </p>
               <div className="admin-edit-actions">
@@ -1015,6 +1063,98 @@ function UpgradesTab({ data, setData, setSaving, saving }: {
   )
 }
 
+function ClassesTab({ data }: { data: AdminData }) {
+  const [classId, setClassId] = useState(data.classes[0]?.id ?? 0)
+  const selectedClass = data.classes.find((candidate) => candidate.id === classId)
+    ?? data.classes[0]
+    ?? null
+
+  return (
+    <div className="admin-panel">
+      <div className="admin-class-layout">
+        <aside className="admin-class-list">
+          <p className="eyebrow">Classes</p>
+          {data.classes.map((gameClass) => (
+            <button
+              className={selectedClass?.id === gameClass.id ? 'active' : ''}
+              key={gameClass.id}
+              onClick={() => setClassId(gameClass.id)}
+              style={{ '--class-color': gameClass.themeColor } as CSSProperties}
+              type="button"
+            >
+              <span>{gameClass.name[0]}</span>
+              <div>
+                <strong>{gameClass.name}</strong>
+                <small>{gameClass.resourceName} {gameClass.maxResource}</small>
+              </div>
+            </button>
+          ))}
+        </aside>
+
+        {selectedClass ? (
+          <section className="admin-class-detail">
+            <div className="admin-class-hero" style={{ '--class-color': selectedClass.themeColor } as CSSProperties}>
+              <span>{selectedClass.name[0]}</span>
+              <div>
+                <p className="eyebrow">{selectedClass.slug}</p>
+                <h2>{selectedClass.name}</h2>
+                <small>{selectedClass.resourceName} pool: {selectedClass.maxResource}</small>
+              </div>
+              <p>{selectedClass.description}</p>
+            </div>
+
+            <section>
+              <h3 className="admin-loot-title">Abilities ({selectedClass.abilities.length})</h3>
+              <div className="admin-class-table">
+                <div className="admin-class-table-head">
+                  <span>Ability</span>
+                  <span>Type</span>
+                  <span>Default Strength</span>
+                  <span>Cost</span>
+                  <span>Cooldown</span>
+                  <span>Unlock</span>
+                </div>
+                {selectedClass.abilities.map((ability) => (
+                  <div key={ability.id} className="admin-class-row">
+                    <span><i>{ability.glyph}</i><strong>{ability.name}</strong><small>{ability.description}</small></span>
+                    <span>{ability.spellType}</span>
+                    <span>{ability.power}</span>
+                    <span>{ability.cost}</span>
+                    <span>{ability.cooldown}s</span>
+                    <span>Lvl {ability.unlockLevel}</span>
+                  </div>
+                ))}
+              </div>
+            </section>
+
+            <section>
+              <h3 className="admin-loot-title">Talents ({selectedClass.talents.length})</h3>
+              <div className="admin-class-talent-grid">
+                {selectedClass.talents.map((talent) => (
+                  <article key={talent.id} className="admin-class-talent">
+                    <div>
+                      <span>{talent.glyph}</span>
+                      <strong>{talent.name}</strong>
+                    </div>
+                    <small>Tier {talent.tier} · Branch {talent.branch} · Max {talent.maxRank}</small>
+                    <p>{talent.description}</p>
+                    <em>{talent.effectType}: {talent.effectValuePerRank}/rank</em>
+                    {talent.prerequisiteName && (
+                      <small>Requires {talent.prerequisiteName} rank {talent.prerequisiteRank}</small>
+                    )}
+                  </article>
+                ))}
+              </div>
+            </section>
+          </section>
+        ) : (
+          <p className="admin-empty">No classes found.</p>
+        )}
+      </div>
+    </div>
+  )
+}
+
 function jsonRequest(method: 'POST' | 'PUT', body: unknown): RequestInit {
   return {
     method,

src/components/EquipmentScreen.tsx

@@ -596,8 +596,12 @@ export function EquipmentScreen({
           />
           <div className="crafting-layout">
             <aside className="crafting-filters">
+              <EquipmentHeading
+                eyebrow="Slots"
+                title="Gear Slots"
+                detail={slotFilter === 'all' ? 'All' : SLOT_LABELS[slotFilter]}
+              />
               <div>
-                <p className="eyebrow">Slot</p>
                 <div className="crafting-filter-grid">
                   <button
                     className={slotFilter === 'all' ? 'active' : ''}
@@ -657,38 +661,39 @@ export function EquipmentScreen({
               </div>
             </aside>
 
-            <section className="crafting-list-panel">
+            <section className="crafting-available-panel">
-              <EquipmentHeading
+              <section className="crafting-list-panel">
-                eyebrow="Recipes"
+                <EquipmentHeading
-                title={slotFilter === 'all' ? 'Available' : SLOT_LABELS[slotFilter]}
+                  eyebrow="Available Gear"
-                detail={`Page ${recipePage + 1}/${recipePageCount}`}
+                  title={slotFilter === 'all' ? 'Craftable Gear' : SLOT_LABELS[slotFilter]}
-              />
+                  detail={`Page ${recipePage + 1}/${recipePageCount}`}
-              {filteredRecipes.length === 0 ? (
+                />
-                <p className="inventory-empty">No recipes match filters.</p>
+                {filteredRecipes.length === 0 ? (
-              ) : (
+                  <p className="inventory-empty">No recipes match filters.</p>
-                <div className="crafting-list">
+                ) : (
-                {recipePageItems.map((recipe) => (
+                  <div className="crafting-list">
-                  <button
+                  {recipePageItems.map((recipe) => (
-                    className={`${selectedRecipeId === recipe.id ? 'selected' : ''} rarity-${recipe.item.rarity}`}
+                    <button
-                    key={recipe.id}
+                      className={`${selectedRecipeId === recipe.id ? 'selected' : ''} rarity-${recipe.item.rarity}`}
-                    onClick={() => setSelectedRecipeId(recipe.id)}
+                      key={recipe.id}
-                    type="button"
+                      onClick={() => setSelectedRecipeId(recipe.id)}
-                  >
+                      type="button"
-                    <span>{recipe.item.glyph}</span>
+                    >
-                    <div>
+                      <span>{recipe.item.glyph}</span>
-                      <strong>{recipe.item.name}</strong>
+                      <div>
-                      <small>
+                        <strong>{recipe.item.name}</strong>
-                        {SLOT_LABELS[recipe.item.slot]} - Item Level {recipe.item.itemLevel}
+                        <small>
-                        {recipe.item.setName ? ` - ${recipe.item.setName}` : ''}
+                          {SLOT_LABELS[recipe.item.slot]} - Item Level {recipe.item.itemLevel}
-                      </small>
+                          {recipe.item.setName ? ` - ${recipe.item.setName}` : ''}
-                    </div>
+                        </small>
-                    <i className={recipe.canCraft ? 'ready' : 'missing'}>
+                      </div>
-                      {recipe.canCraft ? 'Ready' : 'Needs materials'}
+                      <i className={recipe.canCraft ? 'ready' : 'missing'}>
-                    </i>
+                        {recipe.canCraft ? 'Ready' : 'Needs materials'}
-                  </button>
+                      </i>
-                ))}
+                    </button>
-                </div>
+                  ))}
-              )}
+                  </div>
+                )}
                 {filteredRecipes.length > CRAFTING_LIST_PAGE_SIZE && (
                   <ListPager
                     label={`Page ${recipePage + 1} / ${recipePageCount}`}
@@ -698,42 +703,46 @@ export function EquipmentScreen({
                     previousDisabled={recipePage <= 0}
                   />
                 )}
-              <div className="crafting-action-row">
+                <div className="crafting-action-row">
-                <button
+                  <button
-                  className="primary-button"
+                    className="primary-button"
-                  disabled={selectedRecipeRequiresUpgrade || !selectedRecipe?.canCraft || crafting}
+                    disabled={selectedRecipeRequiresUpgrade || !selectedRecipe?.canCraft || crafting}
-                  onClick={craftSelected}
+                    onClick={craftSelected}
-                  type="button"
+                    type="button"
-                >
+                  >
-                  {crafting ? 'Crafting...' : selectedRecipeRequiresUpgrade ? 'Upgrade Existing Item' : 'Craft Item'}
+                    {crafting ? 'Crafting...' : selectedRecipeRequiresUpgrade ? 'Upgrade Existing Item' : 'Craft Item'}
-                </button>
+                  </button>
-              </div>
-            </section>
-
-            <section className="crafting-detail-panel">
-              {selectedRecipe ? (
-                <div className={`crafting-detail rarity-${selectedRecipe.item.rarity}`}>
-                  <ItemDetail title="Craft Output" item={{ ...selectedRecipe.item, quantity: 1, equipped: false }} />
-                  <div className="crafting-detail-heading">
-                    <p className="eyebrow">Materials</p>
-                    <span>{selectedRecipe.canCraft ? 'Ready' : 'Missing components'}</span>
-                  </div>
-                  <div className="crafting-components">
-                    {selectedRecipe.components.map((component) => (
-                      <div
-                        className={component.owned >= component.quantity ? 'ready' : 'missing'}
-                        key={component.item.id}
-                      >
-                        <span>{component.item.glyph}</span>
-                        <strong>{component.item.name}</strong>
-                        <i>{component.owned}/{component.quantity}</i>
-                      </div>
-                    ))}
-                  </div>
                 </div>
-              ) : (
+              </section>
-                <p className="inventory-empty">Select a recipe.</p>
+
-              )}
+              <section className="crafting-detail-panel">
+                {selectedRecipe ? (
+                  <div className={`crafting-detail rarity-${selectedRecipe.item.rarity}`}>
+                    <ItemDetail title="Craft Output" item={{ ...selectedRecipe.item, quantity: 1, equipped: false }} />
+                    <div className="crafting-detail-heading">
+                      <p className="eyebrow">Materials</p>
+                      <span>{selectedRecipe.canCraft ? 'Ready' : 'Missing components'}</span>
+                    </div>
+                    <div className="crafting-components">
+                      {selectedRecipe.components.length === 0 && (
+                        <p className="inventory-empty">No materials configured. Crafting disabled.</p>
+                      )}
+                      {selectedRecipe.components.map((component) => (
+                        <div
+                          className={component.owned >= component.quantity ? 'ready' : 'missing'}
+                          key={component.item.id}
+                        >
+                          <span>{component.item.glyph}</span>
+                          <strong>{component.item.name}</strong>
+                          <i>{component.owned}/{component.quantity}</i>
+                        </div>
+                      ))}
+                    </div>
+                  </div>
+                ) : (
+                  <p className="inventory-empty">Select a recipe.</p>
+                )}
+              </section>
             </section>
           </div>
         </section>

src/gameRepository.ts

@@ -364,10 +364,13 @@ function updateCraftingRecipes(profile: CharacterProfile) {
       ...component,
       owned: owned.get(component.item.id) ?? 0,
     }))
+    const hasRequiredComponents = components.length > 0
+      && components.every((component) => component.quantity > 0)
     return {
       ...recipe,
       components,
-      canCraft: components.every((component) => component.owned >= component.quantity),
+      canCraft: hasRequiredComponents
+        && components.every((component) => component.owned >= component.quantity),
     }
   })
 }
@@ -1301,12 +1304,14 @@ function createLocalRepository(store: LocalSaveStore): GameRepository {
     if (!recipe) throw new Error('That crafting recipe does not exist.')
     const requiresUpgrade = !DIRECT_CRAFT_ITEM_LEVELS.has(recipe.item.itemLevel)
     if (requiresUpgrade) throw new Error('Upgrade the previous item tier instead.')
+    if (recipe.components.length === 0) throw new Error('That recipe has no component requirements.')
     const missing = recipe.components.find((component) => component.owned < component.quantity)
     if (missing) {
       throw new Error(`Need ${missing.quantity} ${missing.item.name} to craft this item.`)
     }
 
     for (const component of recipe.components) {
+      if (component.quantity <= 0) throw new Error('Recipe components must require at least one item.')
       const owned = profile.inventory.find((candidate) => candidate.id === component.item.id)
       if (!owned) throw new Error(`Need ${component.quantity} ${component.item.name} to craft this item.`)
       owned.quantity -= component.quantity
@@ -1331,12 +1336,14 @@ function createLocalRepository(store: LocalSaveStore): GameRepository {
       ? selectUpgradeRecipe(profile.gearUpgradePaths ?? [], profile.craftingRecipes, item)
       : null
     if (!targetRecipe) throw new Error('No upgrade is available for this item.')
+    if (targetRecipe.components.length === 0) throw new Error('That upgrade has no component requirements.')
     const missing = targetRecipe.components.find((component) => component.owned < component.quantity)
     if (missing) {
       throw new Error(`Need ${missing.quantity} ${missing.item.name} to upgrade this item.`)
     }
 
     for (const component of targetRecipe.components) {
+      if (component.quantity <= 0) throw new Error('Upgrade components must require at least one item.')
       const owned = profile.inventory.find((candidate) => candidate.id === component.item.id)
       if (!owned) throw new Error(`Need ${component.quantity} ${component.item.name} to upgrade this item.`)
       owned.quantity -= component.quantity

src/offline-starter-profile.json

@@ -1797,7 +1797,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1203,
@@ -1820,7 +1820,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1201,
@@ -1843,7 +1843,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1204,
@@ -1866,7 +1866,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1205,
@@ -1889,7 +1889,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1206,
@@ -1912,7 +1912,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1209,
@@ -1935,7 +1935,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1208,
@@ -1958,7 +1958,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1207,
@@ -1981,7 +1981,7 @@
         "setName": null
       },
       "components": [],
-      "canCraft": true
+      "canCraft": false
     },
     {
       "id": 1302,