feat: create stage

packages/game/src/Stage.ts

@@ -0,0 +1,18 @@
+import { IStage, ICommand } from './types'
+import { Condition } from './condition/Condition'
+
+export class Stage {
+  id: string
+  name: string
+  condition: Condition
+
+  constructor({ id, name, condition }: IStage) {
+    this.id = id
+    this.name = name
+    this.condition = new Condition(condition)
+  }
+
+  satisfies(command: ICommand): boolean {
+    return this.condition.match(command)
+  }
+}

packages/game/src/condition/CommandMatcher.ts

@@ -1,4 +1,4 @@
-import { Command } from '../types.js'
+import { ICommand } from '../types.js'
 import { Matcher } from './Matcher.js'
 
 export class CommandMatcher implements Matcher {
@@ -7,7 +7,7 @@ export class CommandMatcher implements Matcher {
     this.matcher = new RegExp(command, flags)
   }
 
-  match(command: Command): boolean {
+  match(command: ICommand): boolean {
     return !!command.command && this.matcher.test(command.command)
   }
 }

packages/game/src/condition/Condition.ts

@@ -1,5 +1,5 @@
 import {
-  Command,
+  ICommand,
   ICondition,
   IFileExistenceChecker,
   FileExistenceInput,
@@ -30,7 +30,7 @@ export class Condition {
     this.matchers.push(new ErrorMatcher(error)) // always check unexpected error
   }
 
-  match(command: Command): boolean {
+  match(command: ICommand): boolean {
     return this.matchers.every((matcher) => {
       return matcher.match(command)
     })

packages/game/src/condition/ErrorMatcher.ts

@@ -1,5 +1,5 @@
 import { Matcher } from './Matcher.js'
-import { Command } from '../types.js'
+import { ICommand } from '../types.js'
 
 export class ErrorMatcher implements Matcher {
   private matcher?: RegExp
@@ -9,7 +9,7 @@ export class ErrorMatcher implements Matcher {
     }
   }
 
-  match(command: Command): boolean {
+  match(command: ICommand): boolean {
     if (!this.matcher) {
       return !command.error
     }

packages/game/src/condition/Matcher.ts

@@ -1,5 +1,5 @@
-import { Command } from '../types.js'
+import { ICommand } from '../types.js'
 
 export interface Matcher {
-  match(command: Command): boolean
+  match(command: ICommand): boolean
 }

packages/game/src/condition/NotMatcher.ts

@@ -1,10 +1,10 @@
-import { Command } from '../types.js'
+import { ICommand } from '../types.js'
 import { Matcher } from './Matcher.js'
 
 export class NotMatcher implements Matcher {
   constructor(private condition: Matcher) {}
 
-  match(command: Command): boolean {
+  match(command: ICommand): boolean {
     return !this.condition.match(command)
   }
 }

packages/game/src/condition/OrMatcher.ts

@@ -1,10 +1,10 @@
-import { Command } from '../types.js'
+import { ICommand } from '../types.js'
 import { Matcher } from './Matcher.js'
 
 export class OrMatcher implements Matcher {
   constructor(private conditions: Matcher[]) {}
 
-  match(command: Command): boolean {
+  match(command: ICommand): boolean {
     return this.conditions.some((condition) => condition.match(command))
   }
 }

packages/game/src/condition/OutputMatcher.ts

@@ -1,4 +1,4 @@
-import { Command } from '../types.js'
+import { ICommand } from '../types.js'
 import { Matcher } from './Matcher.js'
 
 export class OutputMatcher implements Matcher {
@@ -7,7 +7,7 @@ export class OutputMatcher implements Matcher {
     this.matcher = new RegExp(pattern, args)
   }
 
-  match(command: Command): boolean {
+  match(command: ICommand): boolean {
     return !!command.output && this.matcher.test(command.output.trim())
   }
 }

packages/game/src/condition/PwdMatcher.ts

@@ -1,10 +1,10 @@
-import { Command } from '../types.js'
+import { ICommand } from '../types.js'
 import { Matcher } from './Matcher.js'
 
 export class PwdMatcher implements Matcher {
   constructor(private pwd: string) {}
 
-  match(command: Command): boolean {
+  match(command: ICommand): boolean {
     return command.pwd === this.pwd
   }
 }

packages/game/src/types.ts

@@ -1,4 +1,4 @@
-export interface Command {
+export interface ICommand {
   command?: string
   output?: string
   error?: string
@@ -12,7 +12,7 @@ export interface ICondition {
   pwd?: string
   or?: ICondition[]
   not?: ICondition
-  files: FileExistenceInput[]
+  files?: FileExistenceInput[]
 }
 
 export enum FileType {
@@ -32,3 +32,9 @@ export interface FileExistenceInput extends FileInput {
 export interface IFileExistenceChecker {
   exists(file: FileInput): Promise<boolean>
 }
+
+export interface IStage {
+  id: string
+  name: string
+  condition: ICondition
+}

packages/game/test/stage.test.ts

@@ -0,0 +1,25 @@
+import { test, expect } from '@jest/globals'
+import { Stage } from '../src/Stage'
+
+test('check stage condition', () => {
+  const stage = new Stage({
+    id: 'stage1',
+    name: 'List the files using `ls`',
+    condition: {
+      command: 'ls',
+      pwd: '/home/user',
+    },
+  })
+  expect(
+    stage.satisfies({
+      command: 'ls',
+      pwd: '/home/user',
+    })
+  ).toBe(true)
+  expect(
+    stage.satisfies({
+      command: 'ls',
+      pwd: '/home/user/Downloads',
+    })
+  ).toBe(false)
+})