implement settings update functionality

src/features/settings/UpdateSettingsForm.tsx

@@ -0,0 +1,129 @@
+import { z } from 'zod';
+import { useForm } from 'react-hook-form';
+import { zodResolver } from '@hookform/resolvers/zod';
+
+import { SettingsUpdateDTO } from '@/types/settings';
+import Form from '@/ui/form/Form';
+import FormControl from '@/ui/form/FormControl';
+import { useUpdateSettings } from './hooks/useUpdateSettings';
+import { Button } from '@/ui/button/Button';
+import SpinnerMini from '@/ui/spinner/SpinnerMini';
+import { getModifiedFormFieldValues } from '@/utils/helpers';
+import { Tables } from '@/types/database';
+
+interface UpdateSettingsFormProps {
+	settings: Tables<'settings'>;
+}
+
+const formSchema = z.object({
+	min_booking_length: z.coerce
+		.number()
+		.int({ message: 'Min nights per booking must be a whole number' })
+		.positive({ message: 'Min nights per booking must be greater than 0' }),
+	max_booking_length: z.coerce
+		.number()
+		.int({ message: 'Max nights per booking must be a whole number' })
+		.positive({ message: 'Max nights per booking must be greater than 0' }),
+	max_guests_per_booking: z.coerce
+		.number()
+		.int({ message: 'Max guest per booking must be a whole number' })
+		.positive({ message: 'Max guests per booking must be greater than 0' }),
+	breakfast_price: z.coerce
+		.number()
+		.positive({ message: 'Breakfast price must be greater than 0' }),
+});
+
+type FormData = z.infer<typeof formSchema>;
+
+function UpdateSettingsForm({ settings }: UpdateSettingsFormProps) {
+	const { min_booking_length, max_booking_length, max_guests_per_booking, breakfast_price } =
+		settings;
+
+	const form = useForm<FormData>({
+		resolver: zodResolver(formSchema),
+		defaultValues: {
+			min_booking_length,
+			max_booking_length,
+			max_guests_per_booking,
+			breakfast_price,
+		},
+	});
+
+	const formErrors = form.formState.errors;
+	const dirtyFields = form.formState.dirtyFields;
+
+	const updateSettingsMutation = useUpdateSettings();
+
+	function handleSubmit(formData: FormData) {
+		const updatedData: SettingsUpdateDTO = getModifiedFormFieldValues(dirtyFields, formData);
+		updateSettingsMutation.mutate({ settingsId: settings.id, updatedData });
+	}
+
+	return (
+		<Form
+			onSubmit={form.handleSubmit(handleSubmit)}
+			aria-labelledby="updateSettingsFormLabel"
+			noValidate
+		>
+			<span className="sr-only" id="updateSettingsFormLabel">
+				Update hotel settings
+			</span>
+			<div className="multi-col-input-container">
+				<FormControl
+					labelInfo={{ label: 'Min nights per booking', inputId: 'minBookingLength' }}
+					error={formErrors.min_booking_length?.message}
+				>
+					<input
+						{...form.register('min_booking_length')}
+						type="number"
+						id="minBookingLength"
+						aria-invalid={formErrors.min_booking_length ? 'true' : 'false'}
+						disabled={updateSettingsMutation.isLoading}
+					/>
+				</FormControl>
+				<FormControl
+					labelInfo={{ label: 'Max nights per booking', inputId: 'maxBookingLength' }}
+					error={formErrors.max_booking_length?.message}
+				>
+					<input
+						{...form.register('max_booking_length')}
+						type="number"
+						id="maxBookingLength"
+						aria-invalid={formErrors.max_booking_length ? 'true' : 'false'}
+						disabled={updateSettingsMutation.isLoading}
+					/>
+				</FormControl>
+			</div>
+			<FormControl
+				labelInfo={{ label: 'Max guests per booking', inputId: 'maxGuestsPerBooking' }}
+				error={formErrors.max_guests_per_booking?.message}
+			>
+				<input
+					{...form.register('max_guests_per_booking')}
+					type="number"
+					id="maxGuestsPerBooking"
+					aria-invalid={formErrors.max_guests_per_booking ? 'true' : 'false'}
+					disabled={updateSettingsMutation.isLoading}
+				/>
+			</FormControl>
+			<FormControl
+				labelInfo={{ label: 'Breakfast price', inputId: 'breakfastPrice' }}
+				error={formErrors.breakfast_price?.message}
+			>
+				<input
+					{...form.register('breakfast_price')}
+					type="number"
+					id="breakfastPrice"
+					aria-invalid={formErrors.breakfast_price ? 'true' : 'false'}
+					disabled={updateSettingsMutation.isLoading}
+				/>
+			</FormControl>
+			<Button $size="large" disabled={updateSettingsMutation.isLoading}>
+				{updateSettingsMutation.isLoading ? <SpinnerMini /> : 'Update Settings'}
+			</Button>
+			{updateSettingsMutation.isError && <p>{updateSettingsMutation.error.message}</p>}
+		</Form>
+	);
+}
+
+export default UpdateSettingsForm;

src/features/settings/__tests__/UpdateSettingsForm.test.tsx

@@ -0,0 +1,94 @@
+import { screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+
+import { renderWithQueryClient } from '@/test/utils';
+import UpdateSettingsForm from '../UpdateSettingsForm';
+import { settings } from '@/test/fixtures/settings';
+
+const formTitleRegex = /update hotel settings/i;
+const submitButtonRegex = /update settings/i;
+
+function setup() {
+	renderWithQueryClient(<UpdateSettingsForm settings={settings} />);
+}
+
+describe('UpdateSettingsForm', () => {
+	it('should render a form element', () => {
+		setup();
+		const updateSettingsForm = screen.getByRole('form', { name: formTitleRegex });
+		expect(updateSettingsForm).toBeInTheDocument();
+	});
+
+	it('should have all the necessary form fields and submit button', () => {
+		setup();
+
+		const minNightsPerBookingInput = screen.getByLabelText(/min nights per booking/i);
+		const maxNightsPerBookingInput = screen.getByLabelText(/max nights per booking/i);
+		const maxGuestsPerBookingInput = screen.getByLabelText(/max guests per booking/i);
+		const breakfastPriceInput = screen.getByLabelText(/breakfast price/i);
+		const submitButton = screen.getByRole('button', { name: submitButtonRegex });
+
+		[
+			minNightsPerBookingInput,
+			maxNightsPerBookingInput,
+			maxGuestsPerBookingInput,
+			breakfastPriceInput,
+			submitButton,
+		].forEach(element => {
+			expect(element).toBeInTheDocument();
+		});
+	});
+
+	it('should have form fields pre-filled with settings data', () => {
+		setup();
+
+		const minNightsPerBookingInput = screen.getByDisplayValue(settings.min_booking_length);
+		const maxNightsPerBookingInput = screen.getByDisplayValue(settings.max_booking_length);
+		const maxGuestsPerBookingInput = screen.getByDisplayValue(settings.max_guests_per_booking);
+		const breakfastPriceInput = screen.getByDisplayValue(settings.breakfast_price);
+
+		[
+			minNightsPerBookingInput,
+			maxNightsPerBookingInput,
+			maxGuestsPerBookingInput,
+			breakfastPriceInput,
+		].forEach(element => {
+			expect(element).toBeInTheDocument();
+		});
+	});
+
+	it('should show error messages if input values are not provided', async () => {
+		setup();
+		const user = userEvent.setup();
+
+		await user.clear(screen.getByLabelText(/min nights per booking/i));
+		await user.clear(screen.getByLabelText(/max nights per booking/i));
+		await user.clear(screen.getByLabelText(/max guests per booking/i));
+		await user.clear(screen.getByLabelText(/breakfast price/i));
+
+		await user.click(screen.getByRole('button', { name: submitButtonRegex }));
+
+		const minNightsPerBookingError = screen.getByText(
+			/min nights per booking must be greater than 0/i
+		);
+
+		const maxNightsPerBookingError = screen.getByText(
+			/max nights per booking must be greater than 0/i
+		);
+
+		const maxGuestsPerBookingError = screen.getByText(
+			/max guests per booking must be greater than 0/i
+		);
+
+		const breakfastPriceError = screen.getByText(/breakfast price must be greater than 0/i);
+
+		[
+			minNightsPerBookingError,
+			maxNightsPerBookingError,
+			maxGuestsPerBookingError,
+			breakfastPriceError,
+		].forEach(element => {
+			expect(element).toBeInTheDocument();
+		});
+	});
+});

src/features/settings/hooks/useSettings.ts

@@ -0,0 +1,12 @@
+import { getSettings } from '@/services/apiSettings';
+import { SETTINGS_QUERY_KEY } from '@/utils/constants';
+import { useQuery } from '@tanstack/react-query';
+
+export function useSettings(userId: string | null | undefined) {
+	return useQuery({
+		queryKey: [SETTINGS_QUERY_KEY, userId],
+		queryFn: () => getSettings(userId),
+		staleTime: Infinity,
+		cacheTime: Infinity,
+	});
+}

src/features/settings/hooks/useUpdateSettings.ts

@@ -0,0 +1,18 @@
+import { useMutation, useQueryClient } from '@tanstack/react-query';
+import toast from 'react-hot-toast';
+
+import { updateSettings } from '@/services/apiSettings';
+import { SETTINGS_QUERY_KEY } from '@/utils/constants';
+
+export function useUpdateSettings() {
+	const queryClient = useQueryClient();
+
+	return useMutation({
+		mutationFn: updateSettings,
+		onSuccess: () => {
+			toast.success('Settings updated successfully!');
+			queryClient.invalidateQueries({ queryKey: [SETTINGS_QUERY_KEY] });
+		},
+		onError: (error: Error) => toast.error(error.message),
+	});
+}

src/pages/Settings.tsx

@@ -1,7 +1,24 @@
+import { useUser } from '@/features/authentication/hooks/useUser';
+import UpdateSettingsForm from '@/features/settings/UpdateSettingsForm';
+import { useSettings } from '@/features/settings/hooks/useSettings';
 import Heading from '@/ui/Heading';
+import Spinner from '@/ui/spinner/Spinner';
 
 function Settings() {
-	return <Heading as="h1">Update hotel settings</Heading>;
+	const { data: user } = useUser();
+	const { data: settings, isLoading } = useSettings(user?.id);
+	return (
+		<>
+			<Heading as="h1">Update hotel settings</Heading>
+			{isLoading ? (
+				<Spinner />
+			) : settings ? (
+				<UpdateSettingsForm settings={settings} />
+			) : (
+				<p className="mt-1">Settings could not be loaded.</p>
+			)}
+		</>
+	);
 }
 
 export default Settings;