feat(content): add action costs and multi-yield schema

src/content/__tests__/schema.test.ts

@@ -3,7 +3,12 @@ import { buildContent } from '../schema';
 
 const validResources = [{ id: 'gold', name: 'Gold' }];
 const validActions = [
-  { id: 'forage', name: 'Forage', durationMs: 3000, yields: { resourceId: 'gold', amount: 1 } },
+  {
+    id: 'forage',
+    name: 'Forage',
+    durationMs: 3000,
+    yields: [{ resourceId: 'gold', amount: 1 }],
+  },
 ];
 
 describe('buildContent()', () => {
@@ -24,7 +29,7 @@ describe('buildContent()', () => {
         id: 'forage',
         name: 'Forage',
         durationMs: 3000,
-        yields: { resourceId: 'ghost', amount: 1 },
+        yields: [{ resourceId: 'ghost', amount: 1 }],
       },
     ];
     expect(() => buildContent({ resources: validResources, actions })).toThrow(/unknown resource/i);
@@ -40,8 +45,55 @@ describe('buildContent()', () => {
 
   it('rejects a structurally invalid definition', () => {
     const actions = [
-      { id: 'forage', name: 'Forage', durationMs: -1, yields: { resourceId: 'gold', amount: 1 } },
+      {
+        id: 'forage',
+        name: 'Forage',
+        durationMs: -1,
+        yields: [{ resourceId: 'gold', amount: 1 }],
+      },
     ];
     expect(() => buildContent({ resources: validResources, actions })).toThrow();
   });
 });
+
+describe('costs and multi-yield', () => {
+  it('accepts optional costs and multiple yields', () => {
+    const resources = [
+      { id: 'gold', name: 'Gold' },
+      { id: 'wood', name: 'Wood' },
+    ];
+    const actions = [
+      {
+        id: 'craft',
+        name: 'Craft',
+        durationMs: 1000,
+        costs: [{ resourceId: 'wood', amount: 2 }],
+        yields: [
+          { resourceId: 'gold', amount: 1 },
+          { resourceId: 'wood', amount: 1 },
+        ],
+      },
+    ];
+    const content = buildContent({ resources, actions });
+    expect(content.actionsById.craft.costs).toEqual([{ resourceId: 'wood', amount: 2 }]);
+    expect(content.actionsById.craft.yields).toHaveLength(2);
+  });
+
+  it('rejects cost referencing unknown resource', () => {
+    const actions = [
+      {
+        id: 'craft',
+        name: 'Craft',
+        durationMs: 1000,
+        costs: [{ resourceId: 'ghost', amount: 1 }],
+        yields: [{ resourceId: 'gold', amount: 1 }],
+      },
+    ];
+    expect(() => buildContent({ resources: validResources, actions })).toThrow(/unknown resource/i);
+  });
+
+  it('defaults costs to empty array', () => {
+    const content = buildContent({ resources: validResources, actions: validActions });
+    expect(content.actionsById.forage.costs).toEqual([]);
+  });
+});