refactor(misskey-games): Misskey Games系パッケージのlint修正＋Lint CI整備 (#14612)

* chore(lint): Fix linting in misskey-reversi

(cherry picked from commit 894934a1a7743472b2d051e2690007ae373efd76)

* chore(lint): Fix linting in misskey-bubble-game

(cherry picked from commit 1ba9c37a8d5e4ae6a98494026b87f6f6439790c7)

* enhance(gh): add lint ci for misskey games packages

* enhance(gh): fix lint ci

* fix

* revert some changes that nothing to do with lint rules

* fix

* lint fixes

* refactor: strict type def

* lint fixes

* :art:

* :art:

---------

Co-authored-by: 4censord <mail@4censord.de>

7 files changed, 68 insertions, 45 deletions

diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 3064b0f6f4..07d9af12f7 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,6 +12,8 @@ on:
       - packages/frontend-embed/**
       - packages/sw/**
       - packages/misskey-js/**
+      - packages/misskey-bubble-game/**
+      - packages/misskey-reversi/**
       - packages/shared/eslint.config.js
       - .github/workflows/lint.yml
   pull_request:
@@ -22,6 +24,8 @@ on:
       - packages/frontend-embed/**
       - packages/sw/**
       - packages/misskey-js/**
+      - packages/misskey-bubble-game/**
+      - packages/misskey-reversi/**
       - packages/shared/eslint.config.js
       - .github/workflows/lint.yml
 jobs:
@@ -53,6 +57,8 @@ jobs:
         - frontend-embed
         - sw
         - misskey-js
+        - misskey-bubble-game
+        - misskey-reversi
     env:
       eslint-cache-version: v1
       eslint-cache-path: ${{ github.workspace }}/node_modules/.cache/eslint-${{ matrix.workspace }}
diff --git a/packages/misskey-bubble-game/build.js b/packages/misskey-bubble-game/build.js
index e626c97a59..a80b71646f 100644
--- a/packages/misskey-bubble-game/build.js
+++ b/packages/misskey-bubble-game/build.js
@@ -1,32 +1,32 @@
-import * as esbuild from "esbuild";
-import { build } from "esbuild";
-import { globSync } from "glob";
-import { execa } from "execa";
-import fs from "node:fs";
-import { fileURLToPath } from "node:url";
-import { dirname } from "node:path";
+import fs from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname } from 'node:path';
+import * as esbuild from 'esbuild';
+import { build } from 'esbuild';
+import { globSync } from 'glob';
+import { execa } from 'execa';
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
 const _package = JSON.parse(fs.readFileSync(_dirname + '/package.json', 'utf-8'));
 
-const entryPoints = globSync("./src/**/**.{ts,tsx}");
+const entryPoints = globSync('./src/**/**.{ts,tsx}');
 
 /** @type {import('esbuild').BuildOptions} */
 const options = {
 	entryPoints,
 	minify: process.env.NODE_ENV === 'production',
-	outdir: "./built",
-	target: "es2022",
-	platform: "browser",
-	format: "esm",
+	outdir: './built',
+	target: 'es2022',
+	platform: 'browser',
+	format: 'esm',
 	sourcemap: 'linked',
 };
 
 // built配下をすべて削除する
 fs.rmSync('./built', { recursive: true, force: true });
 
-if (process.argv.map(arg => arg.toLowerCase()).includes("--watch")) {
+if (process.argv.map(arg => arg.toLowerCase()).includes('--watch')) {
 	await watchSrc();
 } else {
 	await buildSrc();
@@ -36,7 +36,7 @@ async function buildSrc() {
 	console.log(`[${_package.name}] start building...`);
 
 	await build(options)
-		.then(it => {
+		.then(() => {
 			console.log(`[${_package.name}] build succeeded.`);
 		})
 		.catch((err) => {
@@ -65,7 +65,7 @@ function buildDts() {
 		{
 			stdout: process.stdout,
 			stderr: process.stderr,
-		}
+		},
 	);
 }
 
@@ -86,7 +86,7 @@ async function watchSrc() {
 		},
 	}];
 
-	console.log(`[${_package.name}] start watching...`)
+	console.log(`[${_package.name}] start watching...`);
 
 	const context = await esbuild.context({ ...options, plugins });
 	await context.watch();
diff --git a/packages/misskey-bubble-game/eslint.config.js b/packages/misskey-bubble-game/eslint.config.js
index 86c21a22a3..bce383b1a6 100644
--- a/packages/misskey-bubble-game/eslint.config.js
+++ b/packages/misskey-bubble-game/eslint.config.js
@@ -1,6 +1,7 @@
 import tsParser from '@typescript-eslint/parser';
 import sharedConfig from '../shared/eslint.config.js';
 
+// eslint-disable-next-line import/no-default-export
 export default [
 	...sharedConfig,
 	{
diff --git a/packages/misskey-bubble-game/src/game.ts b/packages/misskey-bubble-game/src/game.ts
index 3bce4b1dcf..7f230e39cb 100644
--- a/packages/misskey-bubble-game/src/game.ts
+++ b/packages/misskey-bubble-game/src/game.ts
@@ -199,13 +199,12 @@ export class DropAndFusionGame extends EventEmitter<{
 		};
 		if (mono.shape === 'circle') {
 			return Matter.Bodies.circle(x, y, mono.sizeX / 2, options);
-		// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
 		} else if (mono.shape === 'rectangle') {
 			return Matter.Bodies.rectangle(x, y, mono.sizeX, mono.sizeY, options);
-		} else if (mono.shape === 'custom') {
-			return Matter.Bodies.fromVertices(x, y, mono.vertices!.map(i => i.map(j => ({
-				x: (j.x / mono.verticesSize!) * mono.sizeX,
-				y: (j.y / mono.verticesSize!) * mono.sizeY,
+		} else if (mono.shape === 'custom' && mono.vertices != null && mono.verticesSize != null) { //eslint-disable-line @typescript-eslint/no-unnecessary-condition
+			return Matter.Bodies.fromVertices(x, y, mono.vertices.map(i => i.map(j => ({
+				x: (j.x / mono.verticesSize!) * mono.sizeX, //eslint-disable-line @typescript-eslint/no-non-null-assertion
+				y: (j.y / mono.verticesSize!) * mono.sizeY, //eslint-disable-line @typescript-eslint/no-non-null-assertion
 			}))), options);
 		} else {
 			throw new Error('unrecognized shape');
@@ -227,7 +226,12 @@ export class DropAndFusionGame extends EventEmitter<{
 		this.gameOverReadyBodyIds = this.gameOverReadyBodyIds.filter(x => x !== bodyA.id && x !== bodyB.id);
 		Matter.Composite.remove(this.engine.world, [bodyA, bodyB]);
 
-		const currentMono = this.monoDefinitions.find(y => y.id === bodyA.label)!;
+		const currentMono = this.monoDefinitions.find(y => y.id === bodyA.label);
+
+		if (currentMono == null) {
+			throw new Error('Current Mono Not Found');
+		}
+
 		const nextMono = this.monoDefinitions.find(x => x.level === currentMono.level + 1) ?? null;
 
 		if (nextMono) {
@@ -362,14 +366,18 @@ export class DropAndFusionGame extends EventEmitter<{
 	}
 
 	public getActiveMonos() {
-		return this.engine.world.bodies.map(x => this.monoDefinitions.find((mono) => mono.id === x.label)!).filter(x => x !== undefined);
+		return this.engine.world.bodies
+			.map(x => this.monoDefinitions.find((mono) => mono.id === x.label))
+			.filter(x => x !== undefined);
 	}
 
 	public drop(_x: number) {
 		if (this.isGameOver) return;
 		if (this.frame - this.latestDroppedAt < this.DROP_COOLTIME) return;
 
-		const head = this.stock.shift()!;
+		const head = this.stock.shift();
+		if (!head) return;
+
 		this.stock.push({
 			id: this.rng().toString(),
 			mono: this.monoDefinitions.filter(x => x.dropCandidate)[Math.floor(this.rng() * this.monoDefinitions.filter(x => x.dropCandidate).length)],
@@ -411,13 +419,15 @@ export class DropAndFusionGame extends EventEmitter<{
 		});
 
 		if (this.holding) {
-			const head = this.stock.shift()!;
+			const head = this.stock.shift();
+			if (!head) return;
 			this.stock.unshift(this.holding);
 			this.holding = head;
 			this.emit('changeHolding', this.holding);
 			this.emit('changeStock', this.stock);
 		} else {
-			const head = this.stock.shift()!;
+			const head = this.stock.shift();
+			if (!head) return;
 			this.holding = head;
 			this.stock.push({
 				id: this.rng().toString(),
diff --git a/packages/misskey-reversi/build.js b/packages/misskey-reversi/build.js
index e626c97a59..a80b71646f 100644
--- a/packages/misskey-reversi/build.js
+++ b/packages/misskey-reversi/build.js
@@ -1,32 +1,32 @@
-import * as esbuild from "esbuild";
-import { build } from "esbuild";
-import { globSync } from "glob";
-import { execa } from "execa";
-import fs from "node:fs";
-import { fileURLToPath } from "node:url";
-import { dirname } from "node:path";
+import fs from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname } from 'node:path';
+import * as esbuild from 'esbuild';
+import { build } from 'esbuild';
+import { globSync } from 'glob';
+import { execa } from 'execa';
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
 const _package = JSON.parse(fs.readFileSync(_dirname + '/package.json', 'utf-8'));
 
-const entryPoints = globSync("./src/**/**.{ts,tsx}");
+const entryPoints = globSync('./src/**/**.{ts,tsx}');
 
 /** @type {import('esbuild').BuildOptions} */
 const options = {
 	entryPoints,
 	minify: process.env.NODE_ENV === 'production',
-	outdir: "./built",
-	target: "es2022",
-	platform: "browser",
-	format: "esm",
+	outdir: './built',
+	target: 'es2022',
+	platform: 'browser',
+	format: 'esm',
 	sourcemap: 'linked',
 };
 
 // built配下をすべて削除する
 fs.rmSync('./built', { recursive: true, force: true });
 
-if (process.argv.map(arg => arg.toLowerCase()).includes("--watch")) {
+if (process.argv.map(arg => arg.toLowerCase()).includes('--watch')) {
 	await watchSrc();
 } else {
 	await buildSrc();
@@ -36,7 +36,7 @@ async function buildSrc() {
 	console.log(`[${_package.name}] start building...`);
 
 	await build(options)
-		.then(it => {
+		.then(() => {
 			console.log(`[${_package.name}] build succeeded.`);
 		})
 		.catch((err) => {
@@ -65,7 +65,7 @@ function buildDts() {
 		{
 			stdout: process.stdout,
 			stderr: process.stderr,
-		}
+		},
 	);
 }
 
@@ -86,7 +86,7 @@ async function watchSrc() {
 		},
 	}];
 
-	console.log(`[${_package.name}] start watching...`)
+	console.log(`[${_package.name}] start watching...`);
 
 	const context = await esbuild.context({ ...options, plugins });
 	await context.watch();
diff --git a/packages/misskey-reversi/eslint.config.js b/packages/misskey-reversi/eslint.config.js
index 3f81df7145..8453d9b8e7 100644
--- a/packages/misskey-reversi/eslint.config.js
+++ b/packages/misskey-reversi/eslint.config.js
@@ -1,6 +1,7 @@
 import tsParser from '@typescript-eslint/parser';
 import sharedConfig from '../shared/eslint.config.js';
 
+// eslint-disable-next-line import/no-default-export
 export default [
 	...sharedConfig,
 	{
diff --git a/packages/misskey-reversi/src/game.ts b/packages/misskey-reversi/src/game.ts
index 4afca9898c..35cc44feb4 100644
--- a/packages/misskey-reversi/src/game.ts
+++ b/packages/misskey-reversi/src/game.ts
@@ -53,9 +53,13 @@ export class Game {
 
 		//#region Options
 		this.opts = opts;
+
+		/* eslint-disable @typescript-eslint/no-unnecessary-condition */
 		if (this.opts.isLlotheo == null) this.opts.isLlotheo = false;
 		if (this.opts.canPutEverywhere == null) this.opts.canPutEverywhere = false;
 		if (this.opts.loopedBoard == null) this.opts.loopedBoard = false;
+		/* eslint-enable */
+
 		//#endregion
 
 		//#region Parse map data
@@ -123,12 +127,13 @@ export class Game {
 		// ターン計算
 		this.turn =
 			this.canPutSomewhere(!this.prevColor) ? !this.prevColor :
-			this.canPutSomewhere(this.prevColor!) ? this.prevColor :
+			this.canPutSomewhere(this.prevColor!) ? this.prevColor : //eslint-disable-line @typescript-eslint/no-non-null-assertion
 			null;
 	}
 
 	public undo() {
-		const undo = this.logs.pop()!;
+		const undo = this.logs.pop();
+		if (undo == null) return;
 		this.prevColor = undo.color;
 		this.prevPos = undo.pos;
 		this.board[undo.pos] = null;
@@ -183,7 +188,7 @@ export class Game {
 
 			const found: number[] = []; // 挟めるかもしれない相手の石を入れておく配列
 			let [x, y] = this.posToXy(initPos);
-			while (true) {
+			while (true) { // eslint-disable-line @typescript-eslint/no-unnecessary-condition
 				[x, y] = nextPos(x, y);
 
 				// 座標が指し示す位置がボード外に出たとき