feat(wobe): add get cookie function on context (#33)

* feat(wobe): add get cookie function in context to get a cookie in request headers

* feat: add test for single cookie

packages/wobe/src/Context.test.ts

@@ -78,4 +78,30 @@ describe('Context', () => {
 		)
 		expect(context.res.status).toEqual(301)
 	})
+
+	it('should get the cookie in the request headers', () => {
+		const request = new Request('https://example.com', {
+			headers: {
+				cookie: 'test=tata; test2=titi',
+			},
+		})
+		const context = new Context(request)
+
+		expect(context.getCookie('test')).toEqual('tata')
+		expect(context.getCookie('test2')).toEqual('titi')
+		expect(context.getCookie('invalid')).toBeUndefined()
+	})
+
+	it('should get the cookie in the request headers with only one cookie', () => {
+		const request = new Request('https://example.com', {
+			headers: {
+				cookie: 'test=tata',
+			},
+		})
+		const context = new Context(request)
+
+		expect(context.getCookie('test')).toEqual('tata')
+		expect(context.getCookie('test2')).toBeUndefined()
+		expect(context.getCookie('invalid')).toBeUndefined()
+	})
 })

packages/wobe/src/Context.ts

@@ -79,4 +79,22 @@ export class Context {
 
 		return this.res.response || new Response(null, { status: 404 })
 	}
+
+	getCookie(name: string) {
+		const cookieHeader = this.request.headers.get('cookie')
+
+		if (!cookieHeader) return undefined
+
+		const split = cookieHeader
+			.split(';')
+			.map((cookie) => cookie.replaceAll(' ', ''))
+
+		const existingCookie = split.find(
+			(element) => element.split('=')[0] === name,
+		)
+
+		if (!existingCookie) return undefined
+
+		return existingCookie.split('=')[1]
+	}
 }