V2 types (#291)

packages/utils/.eslintrc

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+{
+  "env": {
+    "browser": true,
+    "node": true
+  },
+  "parser": "@typescript-eslint/parser",
+  "plugins": [
+    "simple-import-sort",
+    "prettier"
+  ],
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "prettier"
+  ],
+  "parserOptions": {
+    "ecmaVersion": 2020,
+    "sourceType": "module"
+  },
+  "rules": {
+    "prettier/prettier": [
+      "error",
+      {
+        "endOfLine": "auto"
+      }
+    ],
+    "simple-import-sort/exports": "error",
+    "simple-import-sort/imports": "error"
+  }
+}

packages/utils/.prettierrc

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+{
+  "trailingComma": "all",
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": true,
+  "jsxSingleQuote": true,
+  "printWidth": 120
+}

packages/utils/index.ts

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+export { generateId } from './src/generate-id/generateId.js';

packages/utils/package.json

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+{
+  "name": "ontime-utils",
+  "type": "module",
+  "exports": "./index.ts",
+  "version": "2.0.0",
+  "private": true,
+  "description": "shared logic for ontime",
+  "scripts": {
+    "lint": "eslint .",
+    "test": "vitest",
+    "test:pipeline": "vitest run",
+    "cleanup": "rm -rf .turbo && rm -rf node_modules"
+  },
+  "dependencies": {
+    "nanoid": "^4.0.0"
+  },
+  "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^5.48.1",
+    "@typescript-eslint/parser": "^5.48.1",
+    "eslint": "^8.31.0",
+    "eslint-config-prettier": "^8.6.0",
+    "eslint-plugin-prettier": "^4.2.1",
+    "eslint-plugin-simple-import-sort": "^8.0.0",
+    "prettier": "^2.8.3",
+    "typescript": "^4.9.4",
+    "vitest": "^0.27.1"
+  }
+}

packages/utils/src/generate-id/generateId.test.ts

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+import { generateId } from './generateId.js';
+
+test('generate a valid 5 digit id', () => {
+  const id = generateId();
+  expect(id.length).toBe(5);
+});
+
+test('generate 100 with less than 110 attempts', () => {
+  const ids = new Set<string>();
+  let attempts = 1;
+  while (ids.size < 100) {
+    ids.add(generateId());
+    attempts++;
+  }
+
+  expect(attempts).toBeLessThan(105);
+});
+
+test('generate 1000 with less than 1020 attempts', () => {
+  const ids = new Set<string>();
+  let attempts = 1;
+  while (ids.size < 1000) {
+    ids.add(generateId());
+    attempts++;
+  }
+
+  expect(attempts).toBeLessThan(1020);
+});

packages/utils/src/generate-id/generateId.ts

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+import { customAlphabet } from 'nanoid';
+
+const nanoid = customAlphabet('1234567890abcdef', 5);
+
+/**
+ * Generates a random id from the defined alphabet
+ */
+export const generateId = (): string => nanoid();

packages/utils/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "skipLibCheck": true,
+    "allowSyntheticDefaultImports": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "noImplicitAny": true,
+    "noImplicitReturns": true,
+    "allowUnreachableCode": false,
+    "allowUnusedLabels": false,
+    "noImplicitThis": true,
+    "strictNullChecks": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true,
+    "removeComments": true,
+    "preserveConstEnums": true,
+    "allowJs": true,
+    "baseUrl": "src",
+    "types": ["vitest/globals"]
+  },
+  "include": [
+    "src",
+    "../node_modules/.pnpm/vitest@0.26.3/node_modules/vitest/globals.d.ts"
+  ],
+  "exclude": [
+    "node_modules",
+  ]
+}

packages/utils/vite.config.ts

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+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    globals: true,
+  },
+});