From 9a11cc3189a5f8afb5b3d7364bce5ed6b2c29517 Mon Sep 17 00:00:00 2001
From: akinocccc <akinochen@foxmail.com>
Date: Sun, 8 Sep 2024 14:59:12 +0800
Subject: [PATCH] feat(configs): support `eslint-plugin-unused-imports`

---
 .gitignore                   |  2 ++
 README.md                    |  3 ++-
 src/configs/unusedImports.ts | 38 ++++++++++++++++++++++++++++++++++++
 src/index.ts                 | 18 ++++++++++++++---
 4 files changed, 57 insertions(+), 4 deletions(-)
 create mode 100644 src/configs/unusedImports.ts

diff --git a/.gitignore b/.gitignore
index 8a7e518..008b64a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,5 @@ dist
 lib
 
 .idea
+
+.eslint-config-inspector
diff --git a/README.md b/README.md
index 4060675..c62560e 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,8 @@ export default defineConfig({
   ts: true,
   vue: true,
   stylistic: true,
-  importx: true,
+  importX: true,
+  unusedImports: true,
   ignores: ["node_modules"],
   globals: {
     bar: true,
diff --git a/src/configs/unusedImports.ts b/src/configs/unusedImports.ts
new file mode 100644
index 0000000..57c8ff2
--- /dev/null
+++ b/src/configs/unusedImports.ts
@@ -0,0 +1,38 @@
+import { Linter } from 'eslint'
+import unusedImports from 'eslint-plugin-unused-imports'
+import { CustomConfigItem, type EslintFlagConfig } from '../types'
+import { isPlainObject } from '../utils'
+
+export function getUnusedImportsConfig(unusedImportsConfig?: CustomConfigItem, useTpeScriptEslint?: boolean): EslintFlagConfig[] {
+  if (unusedImportsConfig) {
+    const unusedImportsRules: Linter.RulesRecord = {
+      'no-unused-vars': 'off',
+      'unused-imports/no-unused-imports': 'error',
+      'unused-imports/no-unused-vars': [
+        'warn',
+        {
+          vars: 'all',
+          varsIgnorePattern: '^_',
+          args: 'after-used',
+          argsIgnorePattern: '^_',
+        },
+      ],
+    }
+
+    if (useTpeScriptEslint && (unusedImportsConfig === true || unusedImportsConfig['unused-imports/no-unused-vars'] !== 'off'))
+      Object.assign(unusedImportsRules, { '@typescript-eslint/no-unused-vars': 'off' })
+
+    if (isPlainObject(unusedImportsConfig))
+      Object.assign(unusedImportsRules, unusedImportsConfig)
+
+    return [
+      {
+        plugins: {
+          'unused-imports': unusedImports,
+        },
+        rules: unusedImportsRules,
+      },
+    ]
+  }
+  return []
+}
diff --git a/src/index.ts b/src/index.ts
index cf9f29e..5d3d702 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,13 +2,15 @@ import { ESLint } from 'eslint'
 import type { CustomConfigItem, EslintFlagConfig } from './types'
 import { isPlainObject } from './utils'
 import { getImportConfig, getJsConfig, getStylisticConfig, getTsConfig, getVueConfig } from './configs'
+import { getUnusedImportsConfig } from './configs/unusedImports'
 
 interface AirBeConfig {
   js?: CustomConfigItem
   ts?: CustomConfigItem
   vue?: CustomConfigItem
   stylistic?: CustomConfigItem
-  importx?: CustomConfigItem
+  importX?: CustomConfigItem
+  unusedImports?: CustomConfigItem
   ignores?: string[]
   globals?: ESLint.Globals
 }
@@ -21,14 +23,24 @@ interface AirBeConfig {
  * @returns {EslintFlagConfig[]} 返回ESLint配置数组。
  */
 const defineConfig = (config: AirBeConfig, ...customFlatConfigs: EslintFlagConfig[]): EslintFlagConfig[] => {
-  const { js, ts, vue, stylistic, importx, ignores, globals } = config
+  const {
+    js,
+    ts,
+    vue,
+    stylistic,
+    importX,
+    unusedImports,
+    ignores,
+    globals,
+  } = config
 
   const eslintConfig: EslintFlagConfig[] = [
     ...getJsConfig(js),
     ...getTsConfig(ts),
     ...getVueConfig(vue),
     ...getStylisticConfig(stylistic),
-    ...getImportConfig(importx),
+    ...getImportConfig(importX),
+    ...getUnusedImportsConfig(unusedImports),
   ]
 
   if (Array.isArray(ignores))