rewrite datepicker, v0.1.18

tests/components/DatePicker.test.tsx

@@ -1,41 +1,334 @@
-import { fireEvent, render, screen } from '@testing-library/react';
+import { fireEvent, render, screen, waitFor, within } from '@testing-library/react';
+import { useState } from 'react';
 import { describe, expect, it, vi } from 'vitest';
 import { DatePicker } from '../../src/components/DatePicker';
 
+type ControlledProps = {
+    type: 'date' | 'time' | 'date-time';
+    initialValue: string;
+    format?: string;
+    min?: string;
+    max?: string;
+    onValueChange?: (value: string) => void;
+    disabled?: boolean;
+};
+
+function ControlledDatePicker({
+    type,
+    initialValue,
+    format,
+    min,
+    max,
+    onValueChange,
+    disabled = false,
+}: Readonly<ControlledProps>) {
+    const [value, setValue] = useState(initialValue);
+
+    return (
+        <DatePicker
+            label="Schedule"
+            type={type}
+            value={value}
+            format={format}
+            min={min}
+            max={max}
+            disabled={disabled}
+            onChange={(event) => {
+                setValue(event.target.value);
+                onValueChange?.(event.target.value);
+            }}
+        />
+    );
+}
+
+function pickCurrentMonthDay(label: string): void {
+    const dayButtons = Array.from(document.querySelectorAll('.datepicker-day')) as HTMLButtonElement[];
+    const targetButton = dayButtons.find(
+        (button) => button.textContent === label && !button.classList.contains('is-outside-month'),
+    );
+
+    expect(targetButton).toBeDefined();
+    fireEvent.click(targetButton as HTMLButtonElement);
+}
+
+function getCurrentMonthDayButton(label: string): HTMLButtonElement {
+    const dayButtons = Array.from(document.querySelectorAll('.datepicker-day')) as HTMLButtonElement[];
+    const targetButton = dayButtons.find(
+        (button) => button.textContent === label && !button.classList.contains('is-outside-month'),
+    );
+
+    if (!targetButton) {
+        throw new Error(`Could not find day button for ${label}`);
+    }
+
+    return targetButton;
+}
+
 describe('DatePicker', () => {
-    it('supports datetime-local type and change callback', () => {
-        const onChange = vi.fn();
-        render(<DatePicker label="Schedule" type="datetime-local" value="" onChange={onChange} />);
+    it('opens popup from icon button and closes with Escape', () => {
+        render(<DatePicker label="Schedule" type="date-time" value="2031/05/20 14:30" onChange={() => {}} />);
 
         const input = screen.getByLabelText('Schedule') as HTMLInputElement;
-        expect(input.type).toBe('datetime-local');
+        expect(input.type).toBe('text');
 
-        fireEvent.change(input, { target: { value: '2031-05-20T14:30' } });
-        expect(onChange).toHaveBeenCalledTimes(1);
+        fireEvent.click(screen.getByRole('button', { name: 'Open date picker' }));
+        expect(
+            screen.getByRole('dialog', { name: 'Date and time picker popup' }),
+        ).toBeInTheDocument();
+
+        fireEvent.keyDown(document, { key: 'Escape' });
+        expect(
+            screen.queryByRole('dialog', { name: 'Date and time picker popup' }),
+        ).not.toBeInTheDocument();
     });
 
-    it('supports date type and disabled state', () => {
+    it('supports segment-by-segment editing with custom format and auto-advance', async () => {
+        const onValueChange = vi.fn();
         render(
-            <DatePicker
-                label="Publish date"
-                type="date"
-                value="2031-05-20"
-                onChange={() => {}}
-                disabled
+            <ControlledDatePicker
+                type="date-time"
+                format="dd/mm/yyyy HH:mm"
+                initialValue="22/02/2026 14:30"
+                onValueChange={onValueChange}
+            />, 
+        );
+
+        const input = screen.getByLabelText('Schedule') as HTMLInputElement;
+        fireEvent.focus(input);
+
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(0);
+            expect(input.selectionEnd).toBe(2);
+        });
+
+        fireEvent.keyDown(input, { key: '1' });
+        await waitFor(() => {
+            expect(input.value).toBe('01/02/2026 14:30');
+            expect(input.selectionStart).toBe(0);
+            expect(input.selectionEnd).toBe(2);
+        });
+        fireEvent.keyDown(input, { key: '1' });
+        await waitFor(() => {
+            expect(input.value).toBe('11/02/2026 14:30');
+            expect(input.selectionStart).toBe(3);
+            expect(input.selectionEnd).toBe(5);
+        });
+
+        fireEvent.keyDown(input, { key: '0' });
+        fireEvent.keyDown(input, { key: '3' });
+        await waitFor(() => {
+            expect(input.value).toBe('11/03/2026 14:30');
+            expect(input.selectionStart).toBe(6);
+            expect(input.selectionEnd).toBe(10);
+        });
+
+        fireEvent.keyDown(input, { key: '2' });
+        fireEvent.keyDown(input, { key: '0' });
+        fireEvent.keyDown(input, { key: '2' });
+        fireEvent.keyDown(input, { key: '7' });
+        await waitFor(() => {
+            expect(input.value).toBe('11/03/2027 14:30');
+            expect(input.selectionStart).toBe(11);
+            expect(input.selectionEnd).toBe(13);
+        });
+
+        fireEvent.keyDown(input, { key: '1' });
+        fireEvent.keyDown(input, { key: '6' });
+        await waitFor(() => {
+            expect(input.value).toBe('11/03/2027 16:30');
+            expect(input.selectionStart).toBe(14);
+            expect(input.selectionEnd).toBe(16);
+        });
+
+        fireEvent.keyDown(input, { key: '4' });
+        fireEvent.keyDown(input, { key: '5' });
+        await waitFor(() => {
+            expect(input.value).toBe('11/03/2027 16:45');
+        });
+
+        expect(onValueChange).toHaveBeenCalled();
+    });
+
+    it('preserves year 0000 while editing and does not coerce to 19xx', async () => {
+        render(
+            <ControlledDatePicker
+                type="date-time"
+                format="dd/mm/yyyy HH:mm"
+                initialValue="22/02/2026 14:30"
             />,
         );
 
-        const input = screen.getByLabelText('Publish date') as HTMLInputElement;
-        expect(input.type).toBe('date');
+        const input = screen.getByLabelText('Schedule') as HTMLInputElement;
+        fireEvent.focus(input);
+
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(0);
+            expect(input.selectionEnd).toBe(2);
+        });
+
+        fireEvent.keyDown(input, { key: '/' });
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(3);
+            expect(input.selectionEnd).toBe(5);
+        });
+
+        fireEvent.keyDown(input, { key: '/' });
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(6);
+            expect(input.selectionEnd).toBe(10);
+        });
+
+        fireEvent.keyDown(input, { key: '0' });
+        await waitFor(() => {
+            expect(input.value).toBe('22/02/0000 14:30');
+            expect(input.selectionStart).toBe(6);
+            expect(input.selectionEnd).toBe(10);
+        });
+
+        fireEvent.keyDown(input, { key: '0' });
+        fireEvent.keyDown(input, { key: '0' });
+        fireEvent.keyDown(input, { key: '0' });
+        await waitFor(() => {
+            expect(input.value).toBe('22/02/0000 14:30');
+            expect(input.selectionStart).toBe(11);
+            expect(input.selectionEnd).toBe(13);
+        });
+    });
+
+    it('uses separator keys to move between editable segments', async () => {
+        render(
+            <ControlledDatePicker
+                type="date-time"
+                format="dd/mm/yyyy HH:mm"
+                initialValue="22/02/2026 14:30"
+            />,
+        );
+
+        const input = screen.getByLabelText('Schedule') as HTMLInputElement;
+        fireEvent.focus(input);
+
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(0);
+            expect(input.selectionEnd).toBe(2);
+        });
+
+        fireEvent.keyDown(input, { key: '/' });
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(3);
+            expect(input.selectionEnd).toBe(5);
+        });
+
+        fireEvent.keyDown(input, { key: '/' });
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(6);
+            expect(input.selectionEnd).toBe(10);
+        });
+
+        fireEvent.keyDown(input, { key: ' ' });
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(11);
+            expect(input.selectionEnd).toBe(13);
+        });
+
+        fireEvent.keyDown(input, { key: ':' });
+        await waitFor(() => {
+            expect(input.selectionStart).toBe(14);
+            expect(input.selectionEnd).toBe(16);
+        });
+    });
+
+    it('applies min/max constraints to calendar and time options', () => {
+        render(
+            <ControlledDatePicker
+                type="date-time"
+                initialValue="2026/03/10 10:00"
+                min="2026/03/10 09:30"
+                max="2026/03/10 10:15"
+            />,
+        );
+
+        fireEvent.click(screen.getByRole('button', { name: 'Open date picker' }));
+
+        expect(getCurrentMonthDayButton('9')).toBeDisabled();
+        expect(getCurrentMonthDayButton('10')).toBeEnabled();
+        expect(getCurrentMonthDayButton('11')).toBeDisabled();
+
+        const hoursList = screen.getByRole('listbox', { name: 'Hours' });
+        expect(within(hoursList).getByRole('button', { name: '08' })).toBeDisabled();
+        expect(within(hoursList).getByRole('button', { name: '09' })).toBeEnabled();
+        expect(within(hoursList).getByRole('button', { name: '10' })).toBeEnabled();
+        expect(within(hoursList).getByRole('button', { name: '11' })).toBeDisabled();
+
+        const minutesList = screen.getByRole('listbox', { name: 'Minutes' });
+        expect(within(minutesList).getByRole('button', { name: '15' })).toBeEnabled();
+        expect(within(minutesList).getByRole('button', { name: '20' })).toBeDisabled();
+    });
+
+    it('renders date mode calendar only and auto-closes after day selection', () => {
+        const onValueChange = vi.fn();
+        render(
+            <ControlledDatePicker
+                type="date"
+                initialValue="2031/05/20"
+                onValueChange={onValueChange}
+            />,
+        );
+
+        fireEvent.click(screen.getByRole('button', { name: 'Open date picker' }));
+
+        expect(screen.getByRole('dialog', { name: 'Date picker popup' })).toBeInTheDocument();
+        expect(screen.queryByText('Hours')).not.toBeInTheDocument();
+        expect(screen.queryByText('Minutes')).not.toBeInTheDocument();
+
+        pickCurrentMonthDay('15');
+
+        const input = screen.getByLabelText('Schedule') as HTMLInputElement;
+        expect(input.value).toMatch(/^\d{4}\/\d{2}\/15$/);
+        expect(onValueChange).toHaveBeenCalled();
+        expect(screen.queryByRole('dialog', { name: 'Date picker popup' })).not.toBeInTheDocument();
+    });
+
+    it('renders time mode selectors only and keeps popup open after selection', () => {
+        const onValueChange = vi.fn();
+        render(<ControlledDatePicker type="time" initialValue="09:00" onValueChange={onValueChange} />);
+
+        fireEvent.click(screen.getByRole('button', { name: 'Open date picker' }));
+
+        expect(screen.getByRole('dialog', { name: 'Time picker popup' })).toBeInTheDocument();
+        expect(screen.queryByRole('grid')).not.toBeInTheDocument();
+
+        const hoursList = screen.getByRole('listbox', { name: 'Hours' });
+        const minutesList = screen.getByRole('listbox', { name: 'Minutes' });
+
+        fireEvent.click(within(hoursList).getByRole('button', { name: '13' }));
+        fireEvent.click(within(minutesList).getByRole('button', { name: '45' }));
+
+        const input = screen.getByLabelText('Schedule') as HTMLInputElement;
+        expect(input.value).toBe('13:45');
+        expect(onValueChange).toHaveBeenCalledTimes(2);
+        expect(screen.getByRole('dialog', { name: 'Time picker popup' })).toBeInTheDocument();
+    });
+
+    it('blocks popup interactions while disabled', () => {
+        render(<ControlledDatePicker type="date" initialValue="2031/05/20" disabled />);
+
+        const input = screen.getByLabelText('Schedule') as HTMLInputElement;
+        const iconButton = screen.getByRole('button', { name: 'Open date picker' });
+
         expect(input).toBeDisabled();
+        expect(iconButton).toBeDisabled();
+
+        fireEvent.click(iconButton);
+
+        expect(screen.queryByRole('dialog', { name: 'Date picker popup' })).not.toBeInTheDocument();
     });
 
     it('renders right icon and error message', () => {
         const { container } = render(
             <DatePicker
                 label="Schedule"
-                type="datetime-local"
-                value=""
+                type="date-time"
+                value="2031/05/20 14:30"
                 onChange={() => {}}
                 rightIcon={<span data-testid="right-icon">R</span>}
                 error="Invalid date"