refactor: extract and improve string processes to utils

src/append_to_group.ts

@@ -1,11 +1,12 @@
-import { Redmine } from 'bluemine'
-import { CsvEntry } from '../type.ts'
+import { Redmine } from 'bluemine';
+import { CsvEntry } from '../type.ts';
+import { toLogin } from '../utils.ts';
 
 async function addUsersToGroup(redmine: Redmine, csv: CsvEntry[]) {
 	const users: { id: number; login: string }[] = []
 
 	for (const { firstname, lastname } of csv) {
-		const login = `${firstname.toLowerCase()}.${lastname.toLowerCase()}`
+		const login = toLogin(firstname, lastname)
 
 		try {
 			const list = await redmine.users.list({ limit: 1, name: login })

src/create_users.ts

@@ -1,23 +1,17 @@
 import { Redmine } from 'bluemine'
 import { CsvEntry } from '../type.ts'
+import { capitalize, sanitize, toLogin } from '../utils.ts'
 
 async function createUsers(redmine: Redmine, csv: CsvEntry[]) {
 	const userIds: number[] = []
 
-	function capitalize(str: string): string {
-		const [first, ...tail] = str.split('')
-		return `${first.toLocaleUpperCase()}${
-			tail.join('').toLocaleLowerCase()
-		}`
-	}
-
 	for (const { firstname, lastname, mail } of csv) {
-		const login = `${firstname.toLowerCase()}.${lastname.toLowerCase()}`
+		const login = toLogin(firstname, lastname)
 
 		try {
 			const { user } = await redmine.users.create({
-				firstname: capitalize(firstname),
-				lastname: capitalize(lastname),
+				firstname: capitalize(sanitize(firstname)),
+				lastname: capitalize(sanitize(lastname)),
 				mail: mail,
 				login,
 				sendCreationMail: true,

utils.ts

@@ -0,0 +1,15 @@
+export function sanitize(str: string): string {
+    return str.replaceAll(' ', '_')
+}
+
+export function capitalize(str: string): string {
+    return str
+        .split(' ')
+        .map(word => word.split(''))
+        .map(([firstLetter, ...tail]) => `${firstLetter.toLocaleUpperCase()}${tail.join().toLocaleLowerCase()}`)
+        .join(' ')
+}
+
+export function toLogin(firstname: string, lastname: string): string {
+    return `${sanitize(firstname.toLocaleLowerCase())}.${sanitize(lastname.toLocaleLowerCase())}`
+}