wip: replace packages with pure files

packages/game/Quest.ts

@@ -0,0 +1,93 @@
+/* eslint-disable no-await-in-loop */
+import { Event } from './Event'
+import { GlobalException } from './Exception'
+import {
+  IQuest,
+  IFileExistenceChecker,
+  ICommand,
+  IResponse,
+  ITask,
+} from './schema'
+import { Stage } from './Stage'
+
+export class Quest {
+  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) => 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[]) {
+    return this.stages.filter((stage) => stage.active(completed))
+  }
+
+  private getActiveExceptions(completed: string[]) {
+    return this.exceptions.filter((exception) => exception.active(completed))
+  }
+
+  async findSatisfiedEvent(
+    command: ICommand,
+    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) {
+        return stage.id
+      }
+    }
+    for (const exception of stages.flatMap((stage) => stage.getExceptions())) {
+      if (exception.catchAll && !catchAllException) {
+        catchAllException = exception.id
+      } else if (await exception.satisfies(command, this.checker)) {
+        return exception.id
+      }
+    }
+    for (const exception of this.getActiveExceptions(completed)) {
+      if (await exception.satisfies(command, this.checker)) {
+        return exception.id
+      }
+    }
+    return catchAllException
+  }
+
+  getResponses(completed: string[]): IResponse[] {
+    return completed.map((id) => this.events.get(id)!.getResponse())
+  }
+
+  getTasks(completed: string[]): ITask[] {
+    const completedSet = new Set(completed)
+    const completedStages = this.stages
+      .filter((stage) => completedSet.has(stage.id))
+      .map((stage) => ({
+        id: stage.id,
+        name: stage.name,
+        completed: true,
+      }))
+    const activeStages = this.getActiveStages(completed).map((stage) => ({
+      id: stage.id,
+      name: stage.name,
+      completed: false,
+    }))
+    return [...completedStages, ...activeStages]
+  }
+}