feat: create ScheduleFilter with date range and day selection

apps/react/src/app/features/schedule/components/schedule-filter.scss

@@ -1,3 +1,79 @@
 .schedule-filter {
   width: 100%;
+
+  :global {
+    .p-accordion {
+      border: 1px solid #e0e0e0;
+      border-radius: 4px;
+
+      .p-accordion-header {
+        padding: 0;
+
+        a {
+          padding: 12px 16px;
+          font-weight: 500;
+        }
+      }
+
+      .p-accordion-content {
+        padding: 0 16px;
+      }
+    }
+  }
+}
+
+.schedule-filter__content {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  padding: 16px 0;
+}
+
+.schedule-filter__group {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.schedule-filter__label {
+  font-size: 12px;
+  font-weight: 500;
+  color: #666;
+  text-transform: uppercase;
+}
+
+.schedule-filter__swap {
+  align-self: center;
+  margin: 8px 0;
+}
+
+.schedule-filter__days {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
+  gap: 8px;
+}
+
+.schedule-filter__day-checkbox {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.schedule-filter__day-label {
+  font-size: 14px;
+  color: #333;
+  cursor: pointer;
+  user-select: none;
+}
+
+.schedule-filter__buttons {
+  display: flex;
+  gap: 8px;
+  margin-top: 8px;
+
+  :global {
+    .p-button {
+      flex: 1;
+    }
+  }
 }

apps/react/src/app/features/schedule/components/schedule-filter.tsx

@@ -1,10 +1,157 @@
-import React from 'react'
+import React, { useState } from 'react'
+import { Accordion, AccordionTab } from 'primereact/accordion'
+import { Button } from 'primereact/button'
+import { Checkbox } from 'primereact/checkbox'
+import { useNavigate } from 'react-router-dom'
+import { useTranslation } from 'react-i18next'
+import { CityAutocomplete, City } from '@app/components/city-autocomplete'
+import { CalendarInput } from '@app/components/calendar-input'
 import './schedule-filter.scss'
 
+const DAYS_OF_WEEK = ['MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN']
+
 export const ScheduleFilter: React.FC = () => {
+  const { t } = useTranslation()
+  const navigate = useNavigate()
+
+  const [departure, setDeparture] = useState<City | null>(null)
+  const [arrival, setArrival] = useState<City | null>(null)
+  const [startDate, setStartDate] = useState<Date | null>(new Date())
+  const [endDate, setEndDate] = useState<Date | null>(new Date(Date.now() + 6 * 24 * 60 * 60 * 1000))
+  const [selectedDays, setSelectedDays] = useState<string[]>([])
+
+  const handleDayToggle = (day: string) => {
+    setSelectedDays((prev) =>
+      prev.includes(day) ? prev.filter((d) => d !== day) : [...prev, day]
+    )
+  }
+
+  const handleSearch = () => {
+    if (departure && arrival && startDate && endDate) {
+      const params = btoa(
+        JSON.stringify({
+          departure: departure.code,
+          arrival: arrival.code,
+          startDate: startDate.toISOString(),
+          endDate: endDate.toISOString(),
+          days: selectedDays.length > 0 ? selectedDays : undefined,
+        })
+      )
+      navigate(`/schedule/route/${params}`)
+    }
+  }
+
+  const handleSwap = () => {
+    const temp = departure
+    setDeparture(arrival)
+    setArrival(temp)
+  }
+
+  const handleClear = () => {
+    setDeparture(null)
+    setArrival(null)
+    setStartDate(new Date())
+    setEndDate(new Date(Date.now() + 6 * 24 * 60 * 60 * 1000))
+    setSelectedDays([])
+  }
+
   return (
     <div className="schedule-filter" data-testid="schedule-filter">
-      {/* Schedule filter will be implemented in next task */}
+      <Accordion activeIndex={0}>
+        <AccordionTab header={t('SHARED.SEARCH')} data-testid="schedule-filter-tab">
+          <div className="schedule-filter__content">
+            {/* Departure City */}
+            <div className="schedule-filter__group">
+              <label className="schedule-filter__label">{t('SHARED.DEPARTURE_CITY')}</label>
+              <CityAutocomplete
+                value={departure}
+                onChange={setDeparture}
+                placeholder={t('SHARED.SELECT_CITY')}
+                data-testid="schedule-departure-city-input"
+              />
+            </div>
+
+            {/* Swap Button */}
+            <Button
+              icon="pi pi-arrow-right"
+              className="p-button-rounded p-button-text schedule-filter__swap"
+              onClick={handleSwap}
+              data-testid="schedule-swap-button"
+            />
+
+            {/* Arrival City */}
+            <div className="schedule-filter__group">
+              <label className="schedule-filter__label">{t('SHARED.ARRIVAL_CITY')}</label>
+              <CityAutocomplete
+                value={arrival}
+                onChange={setArrival}
+                placeholder={t('SHARED.SELECT_CITY')}
+                data-testid="schedule-arrival-city-input"
+              />
+            </div>
+
+            {/* Date Range */}
+            <div className="schedule-filter__group">
+              <label className="schedule-filter__label">{t('SHARED.START_DATE')}</label>
+              <CalendarInput
+                value={startDate}
+                onChange={setStartDate}
+                data-testid="schedule-start-date-input"
+              />
+            </div>
+
+            <div className="schedule-filter__group">
+              <label className="schedule-filter__label">{t('SHARED.END_DATE')}</label>
+              <CalendarInput
+                value={endDate}
+                onChange={setEndDate}
+                minDate={startDate || undefined}
+                data-testid="schedule-end-date-input"
+              />
+            </div>
+
+            {/* Days of Week Filter */}
+            <div className="schedule-filter__group">
+              <label className="schedule-filter__label">{t('SCHEDULE.DAYS_OF_WEEK')}</label>
+              <div className="schedule-filter__days">
+                {DAYS_OF_WEEK.map((day) => (
+                  <div key={day} className="schedule-filter__day-checkbox">
+                    <Checkbox
+                      inputId={`day-${day}`}
+                      name={day}
+                      value={day}
+                      onChange={() => handleDayToggle(day)}
+                      checked={selectedDays.includes(day)}
+                      data-testid={`schedule-day-${day}`}
+                    />
+                    <label htmlFor={`day-${day}`} className="schedule-filter__day-label">
+                      {t(`SCHEDULE.DAY_${day}`)}
+                    </label>
+                  </div>
+                ))}
+              </div>
+            </div>
+
+            {/* Buttons */}
+            <div className="schedule-filter__buttons">
+              <Button
+                label={t('SHARED.SEARCH')}
+                icon="pi pi-search"
+                onClick={handleSearch}
+                disabled={!departure || !arrival || !startDate || !endDate}
+                data-testid="schedule-search-button"
+              />
+              <Button
+                label={t('SHARED.CLEAR')}
+                icon="pi pi-times"
+                severity="secondary"
+                onClick={handleClear}
+                data-testid="schedule-clear-button"
+              />
+            </div>
+          </div>
+        </AccordionTab>
+      </Accordion>
     </div>
   )
 }