feat: catch-all exceptions

packages/game/src/Quest.ts

@@ -42,6 +42,7 @@ export class Quest {
     completed: string[]
   ): Promise<string | null> {
     const stages = this.getActiveStages(completed)
+    let catchAllException: string | null = null
     for (const stage of stages) {
       const satisfies = await stage.satisfies(command, this.checker)
       if (satisfies) {
@@ -50,7 +51,9 @@ export class Quest {
     }
     for (const exception of stages.flatMap((stage) => stage.exceptions)) {
       const condition = new Condition(exception.condition)
-      if (await condition.satisfies(command, this.checker)) {
+      if (exception.catchAll && !catchAllException) {
+        catchAllException = exception.id
+      } else if (await condition.satisfies(command, this.checker)) {
         return exception.id
       }
     }
@@ -60,7 +63,7 @@ export class Quest {
         return exception.id
       }
     }
-    return null
+    return catchAllException
   }
 
   getResponses(completed: string[]): IResponse[] {

packages/game/test/exceptions.test.ts

@@ -76,6 +76,17 @@ describe('exceptions', () => {
     expect(await session.runCommand({ command: 'ls' })).toBe('stage2')
   })
 
+  it('should return the catch all exception', async () => {
+    const session = new Session(
+      { completedStages: [] },
+      quest,
+      new MockFileChecker()
+    )
+    expect(await session.runCommand({ command: 'what is this' })).toBe(
+      'exception2'
+    )
+  })
+
   it('should return the global exception', async () => {
     const session = new Session(
       { completedStages: [] },
@@ -83,7 +94,7 @@ describe('exceptions', () => {
       new MockFileChecker()
     )
     expect(await session.runCommand({ command: 'rm' })).toBe('exception3')
-    expect(await session.runCommand({ command: 'mv' })).toBeNull()
+    expect(await session.runCommand({ command: 'mv' })).toBe('exception2') // catch all
     session.complete('stage1')
     expect(await session.runCommand({ command: 'mv' })).toBe('exception4')
   })