баг-фикс 30/34

frontend/student/app.js

@@ -0,0 +1,222 @@
+import {
+    clearAuthState,
+    fetchWithAuth,
+    logoutSession,
+    restoreSession
+} from '../auth-session.js';
+
+(async () => {
+    const session = await restoreSession();
+    if (!session || session.role !== 'STUDENT') {
+        window.location.replace('/');
+        return;
+    }
+    const groupSelect = document.getElementById('group-select');
+    const grid = document.getElementById('schedule-grid');
+    const statusLine = document.getElementById('status-line');
+    const weekLabel = document.getElementById('week-label');
+    const datePicker = document.getElementById('date-picker');
+    let weekStart = startOfWeek(new Date());
+
+    document.getElementById('logout-link').addEventListener('click', async (event) => {
+        event.preventDefault();
+        await logoutSession();
+        window.location.replace('/');
+    });
+
+    document.getElementById('theme-toggle-local').addEventListener('click', () => {
+        const next = document.documentElement.dataset.theme === 'dark' ? 'light' : 'dark';
+        document.documentElement.dataset.theme = next;
+        localStorage.setItem('theme', next);
+    });
+    document.documentElement.dataset.theme = localStorage.getItem('theme') || 'light';
+
+    document.getElementById('prev-week').addEventListener('click', () => moveWeek(-1));
+    document.getElementById('today-week').addEventListener('click', () => {
+        weekStart = startOfWeek(new Date());
+        loadSchedule();
+    });
+    document.getElementById('next-week').addEventListener('click', () => moveWeek(1));
+    datePicker.addEventListener('change', () => {
+        if (datePicker.value) {
+            weekStart = startOfWeek(new Date(datePicker.value));
+            loadSchedule();
+        }
+    });
+    groupSelect.addEventListener('change', () => {
+        localStorage.setItem('studentGroupId', groupSelect.value);
+        loadSchedule();
+    });
+
+    init();
+
+    async function init() {
+        await loadGroups();
+        await loadSchedule();
+    }
+
+    async function loadGroups() {
+        try {
+            const groups = await fetchJson('/api/groups');
+            if (!groups.length) {
+                groupSelect.innerHTML = '<option value="">Группы не найдены</option>';
+                return;
+            }
+            const savedGroupId = localStorage.getItem('studentGroupId');
+            groupSelect.innerHTML = groups.map(group => (
+                `<option value="${escapeHtml(group.id)}">${escapeHtml(group.name)}</option>`
+            )).join('');
+            groupSelect.value = savedGroupId && groups.some(group => String(group.id) === savedGroupId)
+                ? savedGroupId
+                : String(groups[0].id);
+        } catch (error) {
+            groupSelect.innerHTML = '<option value="">Ошибка загрузки групп</option>';
+            showStatus(error.message, true);
+        }
+    }
+
+    async function loadSchedule() {
+        const groupId = groupSelect.value;
+        const startDate = toIsoDate(weekStart);
+        const endDate = toIsoDate(addDays(weekStart, 6));
+        datePicker.value = startDate;
+        weekLabel.textContent = `${formatDate(weekStart)} - ${formatDate(addDays(weekStart, 6))}`;
+
+        renderEmptyWeek('Загрузка...');
+        if (!groupId) {
+            showStatus('Выберите группу', false);
+            renderEmptyWeek('Нет выбранной группы');
+            return;
+        }
+
+        try {
+            const lessons = await fetchJson(`/api/schedule?groupId=${encodeURIComponent(groupId)}&startDate=${startDate}&endDate=${endDate}`);
+            renderWeek(lessons);
+            showStatus(lessons.length ? `Найдено занятий: ${lessons.length}` : 'На этой неделе занятий нет', false);
+        } catch (error) {
+            renderEmptyWeek('Ошибка загрузки');
+            showStatus(error.message, true);
+        }
+    }
+
+    function renderWeek(lessons) {
+        const lessonsByDate = new Map();
+        lessons.forEach(lesson => {
+            if (!lessonsByDate.has(lesson.date)) lessonsByDate.set(lesson.date, []);
+            lessonsByDate.get(lesson.date).push(lesson);
+        });
+
+        grid.innerHTML = daysOfWeek().map(date => {
+            const key = toIsoDate(date);
+            const dayLessons = lessonsByDate.get(key) || [];
+            return renderDay(date, dayLessons);
+        }).join('');
+    }
+
+    function renderEmptyWeek(message) {
+        grid.innerHTML = daysOfWeek().map(date => renderDay(date, [], message)).join('');
+    }
+
+    function renderDay(date, lessons, emptyMessage = 'Занятий нет') {
+        return `
+            <article class="day">
+                <div class="day-head">
+                    <div class="day-name">${escapeHtml(dayName(date))}</div>
+                    <div class="day-date">${escapeHtml(formatDate(date))}</div>
+                </div>
+                <div class="lesson-list">
+                    ${lessons.length ? lessons.map(renderLesson).join('') : `<div class="empty">${escapeHtml(emptyMessage)}</div>`}
+                </div>
+            </article>
+        `;
+    }
+
+    function renderLesson(lesson) {
+        const groups = Array.isArray(lesson.groupNames) ? lesson.groupNames.join(', ') : '';
+        const subgroups = Array.isArray(lesson.subgroupNames) && lesson.subgroupNames.length
+            ? lesson.subgroupNames.join(', ')
+            : lesson.subgroupName;
+        return `
+            <div class="lesson">
+                <div class="lesson-time">${escapeHtml(trimTime(lesson.startTime))} - ${escapeHtml(trimTime(lesson.endTime))}</div>
+                <div class="lesson-title">${escapeHtml(lesson.subjectName)}</div>
+                <div class="lesson-meta">
+                    <span class="chip">${escapeHtml(lesson.lessonTypeName)}</span>
+                    ${subgroups ? `<span class="chip">${escapeHtml(subgroups)}</span>` : ''}
+                    <span class="chip">${escapeHtml(lesson.lessonFormat)}</span>
+                    <span class="chip">${escapeHtml(lesson.teacherName)}</span>
+                    <span class="chip">${escapeHtml(lesson.classroomName)}</span>
+                    ${groups ? `<span class="chip">${escapeHtml(groups)}</span>` : ''}
+                </div>
+            </div>
+        `;
+    }
+
+    function moveWeek(delta) {
+        weekStart = addDays(weekStart, delta * 7);
+        loadSchedule();
+    }
+
+    function daysOfWeek() {
+        return Array.from({ length: 7 }, (_, index) => addDays(weekStart, index));
+    }
+
+    async function fetchJson(url) {
+        const response = await fetchWithAuth(url);
+        const data = await response.json().catch(() => null);
+        if (response.status === 401) {
+            clearAuthState();
+            window.location.replace('/');
+            throw new Error('Требуется повторный вход в систему');
+        }
+        if (!response.ok) {
+            throw new Error(data?.message || `Ошибка HTTP: ${response.status}`);
+        }
+        return data;
+    }
+
+    function showStatus(message, isError) {
+        statusLine.textContent = message;
+        statusLine.classList.toggle('error', isError);
+    }
+
+    function startOfWeek(date) {
+        const copy = new Date(date.getFullYear(), date.getMonth(), date.getDate());
+        const day = copy.getDay() || 7;
+        copy.setDate(copy.getDate() - day + 1);
+        return copy;
+    }
+
+    function addDays(date, days) {
+        const copy = new Date(date);
+        copy.setDate(copy.getDate() + days);
+        return copy;
+    }
+
+    function toIsoDate(date) {
+        return `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}-${String(date.getDate()).padStart(2, '0')}`;
+    }
+
+    function formatDate(date) {
+        return date.toLocaleDateString('ru-RU', { day: '2-digit', month: '2-digit', year: 'numeric' });
+    }
+
+    function dayName(date) {
+        const value = date.toLocaleDateString('ru-RU', { weekday: 'long' });
+        return value.charAt(0).toUpperCase() + value.slice(1);
+    }
+
+    function trimTime(value) {
+        return String(value || '').slice(0, 5);
+    }
+
+    function escapeHtml(value) {
+        return String(value ?? '')
+            .replaceAll('&', '&amp;')
+            .replaceAll('<', '&lt;')
+            .replaceAll('>', '&gt;')
+            .replaceAll('"', '&quot;')
+            .replaceAll("'", '&#039;');
+    }
+})();
+