chore: adopt shared config packages (tsconfig, eslint, prettier)

.prettierrc

@@ -1,6 +0,0 @@
-{
-  "singleQuote": true,
-  "trailingComma": "all",
-  "printWidth": 100,
-  "tabWidth": 2
-}

eslint.config.mjs

@@ -1,12 +1,16 @@
-import eslint from '@eslint/js';
-import tseslint from 'typescript-eslint';
+import tsParser from '@typescript-eslint/parser';
+import tsPlugin from '@typescript-eslint/eslint-plugin';
 import eslintConfigPrettier from 'eslint-config-prettier';
+import { typescript } from '@acamarata/eslint-config';
 
-export default tseslint.config(
-  eslint.configs.recommended,
-  ...tseslint.configs.recommended,
+export default [
+  {
+    plugins: { '@typescript-eslint': tsPlugin },
+    languageOptions: { parser: tsParser },
+  },
+  ...typescript,
   eslintConfigPrettier,
   {
     ignores: ['dist/', 'node_modules/', 'test.mjs', 'test-cjs.cjs'],
   },
-);
+];

package.json

@@ -57,6 +57,9 @@
     "hijri-core": "^1.0.0"
   },
   "devDependencies": {
+    "@acamarata/eslint-config": "^0.1.0",
+    "@acamarata/prettier-config": "^0.1.0",
+    "@acamarata/tsconfig": "^0.1.0",
     "@eslint/js": "^10.0.1",
     "@types/node": "^25.3.5",
     "eslint": "^10.0.3",
@@ -79,5 +82,6 @@
   "bugs": {
     "url": "https://github.com/acamarata/date-fns-hijri/issues"
   },
-  "type": "module"
+  "type": "module",
+  "prettier": "@acamarata/prettier-config"
 }

pnpm-lock.yaml

@@ -8,6 +8,15 @@ importers:
 
   .:
     devDependencies:
+      '@acamarata/eslint-config':
+        specifier: ^0.1.0
+        version: 0.1.0(@typescript-eslint/eslint-plugin@8.56.1(@typescript-eslint/parser@8.56.1(eslint@10.0.3)(typescript@5.9.3))(eslint@10.0.3)(typescript@5.9.3))(@typescript-eslint/parser@8.56.1(eslint@10.0.3)(typescript@5.9.3))(eslint-config-prettier@10.1.8(eslint@10.0.3))(eslint@10.0.3)
+      '@acamarata/prettier-config':
+        specifier: ^0.1.0
+        version: 0.1.0(prettier@3.8.1)
+      '@acamarata/tsconfig':
+        specifier: ^0.1.0
+        version: 0.1.0
       '@eslint/js':
         specifier: ^10.0.1
         version: 10.0.1(eslint@10.0.3)
@@ -38,6 +47,32 @@ importers:
 
 packages:
 
+  '@acamarata/eslint-config@0.1.0':
+    resolution: {integrity: sha512-St2TObpHKXBLBy1GPrXWlHzXCujJ7jaor6BuWRdLMTOjM56LPBDJx+898R7yFyI8Wi52VWNZdSTPxzHuyRAq+A==}
+    engines: {node: '>=20'}
+    peerDependencies:
+      '@typescript-eslint/eslint-plugin': '>=8.0.0'
+      '@typescript-eslint/parser': '>=8.0.0'
+      eslint: '>=9.0.0'
+      eslint-config-prettier: '>=9.0.0'
+      eslint-plugin-react: '>=7.0.0'
+      eslint-plugin-react-hooks: '>=5.0.0'
+    peerDependenciesMeta:
+      eslint-plugin-react:
+        optional: true
+      eslint-plugin-react-hooks:
+        optional: true
+
+  '@acamarata/prettier-config@0.1.0':
+    resolution: {integrity: sha512-ImMnz/653ettR4gJVd1f7Pz61DQSeDmUtguLrnCl8RdYncqfghT+QGEO5Znml0KvgX3vk4c4roPAWYdXaZgcPA==}
+    engines: {node: '>=20'}
+    peerDependencies:
+      prettier: '>=3.0.0'
+
+  '@acamarata/tsconfig@0.1.0':
+    resolution: {integrity: sha512-bgzyBak43mE+0HhduZX3cvaPjKcggtGGZZMjr35qtYWolsIWgZ9nx7OOswbVYoU35qoUv6rZ0mTK6GbZ8QTYjw==}
+    engines: {node: '>=20'}
+
   '@esbuild/aix-ppc64@0.27.3':
     resolution: {integrity: sha512-9fJMTNFTWZMh5qwrBItuziu834eOCUcEqymSH7pY+zoMVEZg3gcPuBNxH1EvfVYe9h0x/Ptw8KBzv7qxb7l8dg==}
     engines: {node: '>=18'}
@@ -912,6 +947,19 @@ packages:
 
 snapshots:
 
+  '@acamarata/eslint-config@0.1.0(@typescript-eslint/eslint-plugin@8.56.1(@typescript-eslint/parser@8.56.1(eslint@10.0.3)(typescript@5.9.3))(eslint@10.0.3)(typescript@5.9.3))(@typescript-eslint/parser@8.56.1(eslint@10.0.3)(typescript@5.9.3))(eslint-config-prettier@10.1.8(eslint@10.0.3))(eslint@10.0.3)':
+    dependencies:
+      '@typescript-eslint/eslint-plugin': 8.56.1(@typescript-eslint/parser@8.56.1(eslint@10.0.3)(typescript@5.9.3))(eslint@10.0.3)(typescript@5.9.3)
+      '@typescript-eslint/parser': 8.56.1(eslint@10.0.3)(typescript@5.9.3)
+      eslint: 10.0.3
+      eslint-config-prettier: 10.1.8(eslint@10.0.3)
+
+  '@acamarata/prettier-config@0.1.0(prettier@3.8.1)':
+    dependencies:
+      prettier: 3.8.1
+
+  '@acamarata/tsconfig@0.1.0': {}
+
   '@esbuild/aix-ppc64@0.27.3':
     optional: true
 

src/index.ts

@@ -128,9 +128,13 @@ export function getHijriMonthName(
     throw new RangeError(`Hijri month must be 1–12, got ${hm}.`);
   }
   const idx = hm - 1;
-  if (length === 'medium') return hmMedium[idx];
-  if (length === 'short') return hmShort[idx];
-  return hmLong[idx];
+  // Non-null: hm validated 1-12 above; idx is always 0-11, within all hm* array bounds.
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+  if (length === 'medium') return hmMedium[idx]!;
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+  if (length === 'short') return hmShort[idx]!;
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+  return hmLong[idx]!;
 }
 
 /**
@@ -143,7 +147,9 @@ export function getHijriMonthName(
  */
 export function getHijriWeekdayName(date: Date, length: 'long' | 'short' = 'long'): string {
   const day = date.getDay(); // 0–6
-  return length === 'short' ? hwShort[day] : hwLong[day];
+  // Non-null: day is always 0-6 from getDay(), within hw* array bounds.
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+  return length === 'short' ? hwShort[day]! : hwLong[day]!;
 }
 
 // ---------------------------------------------------------------------------
@@ -186,16 +192,19 @@ export function formatHijriDate(
 
   const day = date.getDay(); // 0–6
 
-  return formatStr.replace(TOKEN_RE, (token) => {
+  return formatStr.replace(TOKEN_RE, (token): string => {
     switch (token) {
       case 'iYYYY':
         return String(h.hy);
       case 'iYY':
         return String(h.hy).slice(-2).padStart(2, '0');
       case 'iMMMM':
-        return hmLong[h.hm - 1];
+        // Non-null: hm is a valid Hijri month 1-12; index hm-1 is within hmLong bounds.
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        return hmLong[h.hm - 1]!;
       case 'iMMM':
-        return hmMedium[h.hm - 1];
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        return hmMedium[h.hm - 1]!;
       case 'iMM':
         return String(h.hm).padStart(2, '0');
       case 'iM':
@@ -205,11 +214,15 @@ export function formatHijriDate(
       case 'iD':
         return String(h.hd);
       case 'iEEEE':
-        return hwLong[day];
+        // Non-null: day is always 0-6 from getDay(), within hwLong bounds.
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        return hwLong[day]!;
       case 'iEEE':
-        return hwShort[day];
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        return hwShort[day]!;
       case 'iE':
-        return String(hwNumeric[day]);
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        return String(hwNumeric[day]!);
       case 'ioooo':
         return 'AH';
       case 'iooo':

tsconfig.json

@@ -1,17 +1,9 @@
 {
+  "extends": "@acamarata/tsconfig/tsconfig.library.json",
   "compilerOptions": {
-    "target": "ES2020",
-    "module": "ESNext",
-    "moduleResolution": "bundler",
-    "strict": true,
-    "forceConsistentCasingInFileNames": true,
-    "esModuleInterop": true,
-    "declaration": true,
-    "declarationMap": true,
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,
-    "sourceMap": true,
-    "outDir": "dist",
+    "esModuleInterop": true,
     "rootDir": "src",
     "types": ["node"]
   },