fix(nammatham): fix bun error on windows when using default import

docs/bun.md

@@ -0,0 +1,39 @@
+# Bun
+
+## Issues
+
+Summary:
+- `lodash_default is not a function` error when using `lodash.camelcase` package
+- Using default import of `lodash` package may cause this issue
+
+Deployment at:
+- https://github.com/thaitype/nammatham/actions/runs/9105382778
+- Executable File from `bun-win-x64` target
+  - Using bun to compile into single executable file
+
+Platform:
+
+- Azure Functions Windows
+- Bun v1.1.8 (Windows x64)
+
+Package:
+
+- lodash.camelcase v4.3.0
+- nammatham on [commit 3f3b7b7 (2024-05-15)](https://github.com/thaitype/nammatham/commit/96ad8958c843553b0156d968b72e1d285c85041f)
+  - Build with tsup v8.0.1
+
+```
+Bun v1.1.8 (Windows x64)
+n/a
+at B:/~BUN/root/main.exe:3061:12
+at http (B:/~BUN/root/main.exe:2983:5)
+at http (B:/~BUN/root/main.exe:3031:13)
+TypeError: lodash_default is not a function. (In 'lodash_default(options.name ?? options.route)', 'lodash_default' is undefined)
+^
+3031 | name: lodash_default(options.name ?? options.route),
+3030 | this.functions.push({
+3029 | }
+3028 | throw new Error("Route or Name is required");
+3027 | if (options.route === undefined && options.name === undefined) {
+3026 | http(options) {
+```

package.json

@@ -57,7 +57,7 @@
     "tsup": "^8.0.1",
     "tsx": "^4.7.0",
     "typescript": "^5.3.3",
-    "vitest": "^1.1.3"
+    "vitest": "^1.2.1"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org/"

packages/main/package.json

@@ -17,7 +17,7 @@
     }
   },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "vitest",
     "prepublishOnly": "npm run build",
     "build": "run-s build:*",
     "build:package": "tsup src/main.ts --dts --format esm --external bun,@types/bun",
@@ -40,7 +40,6 @@
     "esbuild": "^0.20.2",
     "execa": "^8.0.1",
     "invariant": "^2.2.4",
-    "lodash.camelcase": "^4.3.0",
     "lodash.merge": "^4.6.2",
     "pino": "^8.17.1",
     "pino-dev": "^4.0.3",
@@ -60,7 +59,6 @@
   },
   "devDependencies": {
     "@types/debug": "^4.1.12",
-    "@types/lodash.camelcase": "^4.3.9",
     "@types/lodash.merge": "^4.6.9",
     "hono": "^4.3.6"
   }

packages/main/src/nammatham.ts

@@ -1,7 +1,7 @@
-import camelCase from 'lodash.camelcase';
-
 import type { NammathamFunction, HttpTriggerOptions, NammathamTrigger } from './types';
 
+import { pascalCase } from './utils';
+
 export class Nammatham implements NammathamTrigger {
   protected functions: NammathamFunction[] = [];
 
@@ -24,7 +24,7 @@ export class Nammatham implements NammathamTrigger {
       throw new Error('Route or Name is required');
     }
     this.functions.push({
-      name: camelCase(options.name ?? options.route),
+      name: pascalCase(options.name ?? options.route),
       metadata: {
         bindings: [
           {

packages/main/src/utils.test.ts

@@ -0,0 +1,31 @@
+import { describe, expect, test } from 'vitest';
+import { pascalCase } from './utils';
+
+describe('pascalCase', () => {
+  test('converts undefined to an empty string', () => {
+    expect(pascalCase(undefined)).toBe('');
+  });
+  test('converts a simple sentence to PascalCase', () => {
+    expect(pascalCase('convert any string to pascal case')).toBe('ConvertAnyStringToPascalCase');
+  });
+
+  test('handles special characters correctly', () => {
+    expect(pascalCase('convert_any string-to!pascal@case')).toBe('ConvertAnyStringToPascalCase');
+  });
+
+  test('handles a single word correctly', () => {
+    expect(pascalCase('hello')).toBe('Hello');
+  });
+
+  test('handles an empty string correctly', () => {
+    expect(pascalCase('')).toBe('');
+  });
+
+  test('handles multiple spaces correctly', () => {
+    expect(pascalCase('  multiple   spaces  in  string  ')).toBe('MultipleSpacesInString');
+  });
+
+  test('handles numbers correctly', () => {
+    expect(pascalCase('convert 123 number')).toBe('Convert123Number');
+  });
+});

packages/main/src/utils.ts

@@ -0,0 +1,9 @@
+export function pascalCase(str: string | undefined): string {
+  if (str === undefined) {
+    return '';
+  }
+  return str
+    .split(/[^a-zA-Z0-9]+/)
+    .map(word => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase())
+    .join('');
+}