refactor: Create a new super class Event and prevent duplicate logic

packages/game/src/Event.ts

@@ -0,0 +1,48 @@
+import { Condition } from './condition/Condition'
+import {
+  ICommand,
+  ICondition,
+  IFileExistenceChecker,
+  IRequirements,
+  IResponse,
+} from './schema'
+
+export class Event {
+  id: string
+  private condition: Condition
+  private requirements: string[]
+
+  constructor(
+    id: string,
+    condition: ICondition,
+    private response: IResponse,
+    requirements?: IRequirements
+  ) {
+    this.id = id
+    this.condition = new Condition(condition)
+    this.requirements = requirements || []
+  }
+
+  async satisfies(
+    command: ICommand,
+    checker: IFileExistenceChecker
+  ): Promise<boolean> {
+    return this.condition.satisfies(command, checker)
+  }
+
+  private checkRequirements(completed: string[]): boolean {
+    return this.requirements.every((req) => completed.includes(req))
+  }
+
+  private finished(completed: string[]): boolean {
+    return completed.includes(this.id)
+  }
+
+  active(completed: string[]): boolean {
+    return !this.finished(completed) && this.checkRequirements(completed)
+  }
+
+  getResponse(): IResponse {
+    return this.response
+  }
+}

packages/game/src/Exception.ts

@@ -0,0 +1,18 @@
+/* eslint-disable max-classes-per-file */
+import { Event } from './Event'
+import { IStageException, IGlobalException } from './schema/exception'
+
+export class StageException extends Event {
+  readonly catchAll: boolean
+
+  constructor({ id, condition, response, catchAll }: IStageException) {
+    super(id, condition, response)
+    this.catchAll = catchAll
+  }
+}
+
+export class GlobalException extends Event {
+  constructor({ id, condition, response, requirements }: IGlobalException) {
+    super(id, condition, response, requirements)
+  }
+}

packages/game/src/Quest.ts

@@ -1,5 +1,7 @@
 /* eslint-disable no-await-in-loop */
 import { Condition } from './condition/Condition'
+import { Event } from './Event'
+import { GlobalException, StageException } from './Exception'
 import {
   IQuest,
   IStage,
@@ -10,15 +12,28 @@ import {
 import { Stage } from './Stage'
 
 export class Quest {
-  private stages: Stage[]
   private quest: IQuest
+  private stages: Stage[]
+  private exceptions: GlobalException[] = []
+  private events: Map<string, Event> = new Map()
 
   constructor(
     quest: IQuest,
     private checker: IFileExistenceChecker
   ) {
     this.quest = quest
-    this.stages = quest.stages.map((stage: IStage) => new Stage(stage))
+    this.stages = quest.stages.map((stage) => new Stage(stage))
+    for (const stage of this.stages) {
+      this.events.set(stage.id, stage)
+      for (const exception of stage.getExceptions()) {
+        this.events.set(exception.id, exception)
+      }
+    }
+    for (const exception of quest.exceptions ?? []) {
+      const globalException = new GlobalException(exception)
+      this.exceptions.push(globalException)
+      this.events.set(globalException.id, globalException)
+    }
   }
 
   getActiveStages(completed: string[]) {
@@ -26,15 +41,7 @@ export class Quest {
   }
 
   private getActiveExceptions(completed: string[]) {
-    return (
-      this.quest.exceptions?.filter(
-        (exception) =>
-          !completed.includes(exception.id) &&
-          exception.requirements.every((requirement) =>
-            completed.includes(requirement)
-          )
-      ) ?? []
-    )
+    return this.exceptions.filter((exception) => exception.active(completed))
   }
 
   async findSatisfiedEvent(
@@ -49,17 +56,15 @@ export class Quest {
         return stage.id
       }
     }
-    for (const exception of stages.flatMap((stage) => stage.exceptions)) {
-      const condition = new Condition(exception.condition)
+    for (const exception of stages.flatMap((stage) => stage.getExceptions())) {
       if (exception.catchAll && !catchAllException) {
         catchAllException = exception.id
-      } else if (await condition.satisfies(command, this.checker)) {
+      } else if (await exception.satisfies(command, this.checker)) {
         return exception.id
       }
     }
     for (const exception of this.getActiveExceptions(completed)) {
-      const condition = new Condition(exception.condition)
-      if (await condition.satisfies(command, this.checker)) {
+      if (await exception.satisfies(command, this.checker)) {
         return exception.id
       }
     }

packages/game/src/Stage.ts

@@ -1,38 +1,26 @@
-import { IStage, ICommand, IFileExistenceChecker } from './schema'
-import { Condition } from './condition/Condition'
-import { StageException } from './schema/exception'
+import { IStage } from './schema'
+import { StageException } from './Exception'
+import { Event } from './Event'
 
-export class Stage {
-  id: string
+export class Stage extends Event {
   name: string
-  public readonly condition: Condition
-  private requirements: string[]
-  public readonly exceptions: StageException[]
+  private exceptions: StageException[]
 
-  constructor({ id, name, condition, requirements, exceptions }: IStage) {
-    this.id = id
+  constructor({
+    id,
+    name,
+    condition,
+    requirements,
+    exceptions,
+    response,
+  }: IStage) {
+    super(id, condition, response, requirements)
     this.name = name || ''
-    this.condition = new Condition(condition)
-    this.requirements = requirements || []
-    this.exceptions = exceptions || []
+    this.exceptions =
+      exceptions?.map((exception) => new StageException(exception)) || []
   }
 
-  async satisfies(
-    command: ICommand,
-    checker: IFileExistenceChecker
-  ): Promise<boolean> {
-    return this.condition.satisfies(command, checker)
-  }
-
-  private checkRequirements(completed: string[]): boolean {
-    return this.requirements.every((req) => completed.includes(req))
-  }
-
-  private finished(completed: string[]): boolean {
-    return completed.includes(this.id)
-  }
-
-  active(completed: string[]): boolean {
-    return !this.finished(completed) && this.checkRequirements(completed)
+  getExceptions(): StageException[] {
+    return this.exceptions
   }
 }

packages/game/src/schema/exception.ts

@@ -9,16 +9,16 @@ export const exceptionSchema = z.object({
   response: responseSchema,
 })
 
-export type Exception = z.infer<typeof exceptionSchema>
+export type IException = z.infer<typeof exceptionSchema>
 
 export const stageExceptionSchema = exceptionSchema.extend({
   catchAll: z.boolean().default(false),
 })
 
-export type StageException = z.infer<typeof stageExceptionSchema>
+export type IStageException = z.infer<typeof stageExceptionSchema>
 
 export const globalExceptionSchema = exceptionSchema.extend({
   requirements: requirementsSchema.default([]),
 })
 
-export type GlobalException = z.infer<typeof globalExceptionSchema>
+export type IGlobalException = z.infer<typeof globalExceptionSchema>

packages/game/src/schema/index.ts

@@ -3,6 +3,7 @@ export { stageSchema, IStage } from './stage.js'
 export { requirementsSchema, IRequirements } from './requirements.js'
 export { responseSchema, IResponse } from './response.js'
 export { questSchema, IQuest } from './quest.js'
+export { exceptionSchema, IException } from './exception.js'
 
 export interface ICommand {
   command?: string