$(document).ready(function () {
    function initQueuedUploads() {
        const uploadForms = new WeakSet();
        const state = {
            modal: null,
            modalElement: null,
            queue: [],
            running: new Set(),
            completed: 0,
            failed: 0,
            totalBytes: 0,
            lastRedirectUrl: '',
            isCancelled: false,
            activeForm: null,
        };
        const maxParallelUploads = 2;

        function formatBytes(bytes) {
            if (!bytes) {
                return '0 МБ';
            }

            const units = ['Б', 'КБ', 'МБ', 'ГБ'];
            let value = bytes;
            let unitIndex = 0;

            while (value >= 1024 && unitIndex < units.length - 1) {
                value /= 1024;
                unitIndex += 1;
            }

            return value.toFixed(unitIndex === 0 ? 0 : 1) + ' ' + units[unitIndex];
        }

        function ensureModal() {
            if (state.modalElement) {
                return state.modalElement;
            }

            const wrapper = document.createElement('div');
            wrapper.innerHTML = '' +
                '<div class="modal fade upload-queue-modal" id="uploadQueueModal" tabindex="-1" aria-labelledby="uploadQueueModalLabel" data-bs-backdrop="static" data-bs-keyboard="false" aria-hidden="true">' +
                    '<div class="modal-dialog modal-dialog-scrollable modal-lg">' +
                        '<div class="modal-content">' +
                            '<div class="modal-header">' +
                                '<h1 class="modal-title fs-5" id="uploadQueueModalLabel">Загрузка файлов</h1>' +
                                '<button type="button" class="btn-close d-none" data-upload-close aria-label="Закрыть"></button>' +
                            '</div>' +
                            '<div class="modal-body">' +
                                '<div class="upload-queue-summary">' +
                                    '<div class="d-flex justify-content-between align-items-center gap-3 mb-2">' +
                                        '<div class="fw-semibold" data-upload-status>Подготовка загрузки</div>' +
                                        '<div class="text-muted small text-nowrap" data-upload-bytes>0 МБ / 0 МБ</div>' +
                                    '</div>' +
                                    '<div class="progress upload-queue-progress" role="progressbar" aria-valuemin="0" aria-valuemax="100">' +
                                        '<div class="progress-bar" data-upload-total-progress style="width: 0%">0%</div>' +
                                    '</div>' +
                                    '<div class="small text-muted mt-2" data-upload-counts>0 из 0 файлов</div>' +
                                '</div>' +
                                '<div class="upload-queue-list list-group mt-3" data-upload-list></div>' +
                            '</div>' +
                            '<div class="modal-footer">' +
                                '<button type="button" class="btn btn-outline-secondary" data-upload-cancel>Отмена</button>' +
                                '<button type="button" class="btn btn-outline-primary d-none" data-upload-retry>Повторить ошибки</button>' +
                                '<button type="button" class="btn btn-primary d-none" data-upload-refresh>Обновить страницу</button>' +
                            '</div>' +
                        '</div>' +
                    '</div>' +
                '</div>';

            state.modalElement = wrapper.firstElementChild;
            document.body.appendChild(state.modalElement);
            state.modal = bootstrap.Modal.getOrCreateInstance(state.modalElement);

            state.modalElement.querySelector('[data-upload-cancel]').addEventListener('click', cancelUploads);
            state.modalElement.querySelector('[data-upload-retry]').addEventListener('click', retryFailedUploads);
            state.modalElement.querySelector('[data-upload-refresh]').addEventListener('click', refreshAfterUpload);
            state.modalElement.querySelector('[data-upload-close]').addEventListener('click', function () {
                state.modal.hide();
            });

            return state.modalElement;
        }

        function getElements() {
            const modal = ensureModal();

            return {
                status: modal.querySelector('[data-upload-status]'),
                bytes: modal.querySelector('[data-upload-bytes]'),
                progress: modal.querySelector('[data-upload-total-progress]'),
                counts: modal.querySelector('[data-upload-counts]'),
                list: modal.querySelector('[data-upload-list]'),
                cancel: modal.querySelector('[data-upload-cancel]'),
                retry: modal.querySelector('[data-upload-retry]'),
                refresh: modal.querySelector('[data-upload-refresh]'),
                close: modal.querySelector('[data-upload-close]'),
            };
        }

        function getSelectedFiles(form) {
            return Array.from(form.querySelectorAll('input[type="file"]'))
                .flatMap(function (input) {
                    return Array.from(input.files || []).map(function (file) {
                        return { input: input, file: file };
                    });
                });
        }

        function buildQueue(form) {
            const selectedFiles = getSelectedFiles(form);

            return selectedFiles.map(function (entry, index) {
                const row = document.createElement('div');
                row.className = 'list-group-item upload-queue-item';
                row.innerHTML = '' +
                    '<div class="d-flex justify-content-between gap-3">' +
                        '<div class="upload-queue-name text-truncate"></div>' +
                        '<div class="upload-queue-size text-muted small text-nowrap"></div>' +
                    '</div>' +
                    '<div class="d-flex justify-content-between gap-3 mt-1">' +
                        '<div class="small" data-upload-item-status>Ожидает</div>' +
                        '<div class="small text-muted" data-upload-item-percent>0%</div>' +
                    '</div>' +
                    '<div class="progress upload-queue-item-progress mt-2" role="progressbar" aria-valuemin="0" aria-valuemax="100">' +
                        '<div class="progress-bar" data-upload-item-progress style="width: 0%"></div>' +
                    '</div>';

                row.querySelector('.upload-queue-name').textContent = entry.file.name;
                row.querySelector('.upload-queue-size').textContent = formatBytes(entry.file.size);

                return {
                    id: index,
                    form: form,
                    input: entry.input,
                    file: entry.file,
                    row: row,
                    loaded: 0,
                    status: 'pending',
                    xhr: null,
                    error: '',
                };
            });
        }

        function updateItem(item, status, loaded, error) {
            item.status = status;
            item.loaded = typeof loaded === 'number' ? loaded : item.loaded;
            item.error = error || '';

            const percent = item.file.size > 0 ? Math.round((item.loaded / item.file.size) * 100) : 0;
            const statusElement = item.row.querySelector('[data-upload-item-status]');
            const percentElement = item.row.querySelector('[data-upload-item-percent]');
            const progressElement = item.row.querySelector('[data-upload-item-progress]');

            item.row.classList.toggle('upload-queue-item-failed', status === 'failed');
            item.row.classList.toggle('upload-queue-item-success', status === 'done');
            progressElement.classList.toggle('bg-danger', status === 'failed');
            progressElement.classList.toggle('bg-success', status === 'done');

            const statusLabels = {
                pending: 'Ожидает',
                uploading: 'Загружается',
                done: 'Загружено',
                failed: item.error || 'Ошибка загрузки',
                cancelled: 'Отменено',
            };

            statusElement.textContent = statusLabels[status] || status;
            percentElement.textContent = Math.min(percent, 100) + '%';
            progressElement.style.width = Math.min(percent, 100) + '%';
        }

        function updateSummary() {
            const elements = getElements();
            const uploadedBytes = state.queue.reduce(function (sum, item) {
                if (item.status === 'done') {
                    return sum + item.file.size;
                }

                if (item.status === 'uploading') {
                    return sum + item.loaded;
                }

                return sum;
            }, 0);
            const doneCount = state.queue.filter(function (item) { return item.status === 'done'; }).length;
            const failedCount = state.queue.filter(function (item) { return item.status === 'failed'; }).length;
            const pendingCount = state.queue.filter(function (item) { return item.status === 'pending'; }).length;
            const percent = state.totalBytes > 0 ? Math.round((uploadedBytes / state.totalBytes) * 100) : 0;

            elements.progress.style.width = Math.min(percent, 100) + '%';
            elements.progress.textContent = Math.min(percent, 100) + '%';
            elements.bytes.textContent = formatBytes(uploadedBytes) + ' / ' + formatBytes(state.totalBytes);
            elements.counts.textContent = doneCount + ' из ' + state.queue.length + ' файлов';

            if (state.isCancelled) {
                elements.status.textContent = 'Загрузка отменена';
            } else if (failedCount > 0 && state.running.size === 0 && pendingCount === 0) {
                elements.status.textContent = 'Загружено с ошибками: ' + doneCount + ' из ' + state.queue.length;
            } else if (doneCount === state.queue.length && state.queue.length > 0) {
                elements.status.textContent = 'Все файлы загружены';
            } else {
                elements.status.textContent = 'Загрузка: ' + doneCount + ' из ' + state.queue.length;
            }

            elements.cancel.classList.toggle('d-none', state.running.size === 0 && pendingCount === 0);
            elements.retry.classList.toggle('d-none', failedCount === 0 || state.running.size > 0 || pendingCount > 0);
            elements.refresh.classList.toggle('d-none', doneCount === 0 || state.running.size > 0 || pendingCount > 0);
            elements.close.classList.toggle('d-none', state.running.size > 0 || pendingCount > 0);
        }

        function appendFormFields(formData, form, activeInput) {
            Array.from(form.elements).forEach(function (element) {
                if (!element.name || element.disabled || element === activeInput) {
                    return;
                }

                if (element.type === 'file') {
                    return;
                }

                if ((element.type === 'checkbox' || element.type === 'radio') && !element.checked) {
                    return;
                }

                formData.append(element.name, element.value);
            });
        }

        function extractError(xhr) {
            if (xhr.responseText) {
                try {
                    const data = JSON.parse(xhr.responseText);

                    if (data.message) {
                        return data.message;
                    }

                    if (data.errors) {
                        return Object.values(data.errors).flat().join(' ');
                    }
                } catch (error) {
                    // Response is not JSON. Fall through to generic status handling.
                }

                const htmlError = extractHtmlError(xhr.responseText);

                if (htmlError) {
                    return htmlError;
                }
            }

            if (xhr.status === 413) {
                return 'Файл слишком большой';
            }

            if (xhr.status === 419) {
                return 'Сессия истекла, обновите страницу';
            }

            if (xhr.status >= 500) {
                return 'Ошибка сервера';
            }

            return xhr.status ? 'Ошибка HTTP ' + xhr.status : 'Ошибка сети';
        }

        function extractHtmlError(responseText) {
            if (!responseText || !responseText.includes('alert-danger')) {
                return '';
            }

            try {
                const documentFragment = new DOMParser().parseFromString(responseText, 'text/html');
                const alert = documentFragment.querySelector('.main-alert.alert-danger, .alert-danger[role="alert"]');

                return alert ? alert.textContent.trim().replace(/\s+/g, ' ') : '';
            } catch (error) {
                return '';
            }
        }

        function hasHtmlUploadError(xhr) {
            const contentType = xhr.getResponseHeader('Content-Type') || '';

            return contentType.includes('text/html') && Boolean(extractHtmlError(xhr.responseText));
        }

        function uploadItem(item) {
            const formData = new FormData();
            const xhr = new XMLHttpRequest();
            const method = (item.form.getAttribute('method') || 'POST').toUpperCase();
            const action = item.form.getAttribute('action') || window.location.href;
            const csrfToken = document.querySelector('meta[name="csrf-token"]')?.getAttribute('content') || '';

            appendFormFields(formData, item.form, item.input);
            formData.append(item.input.name, item.file, item.file.name);

            item.xhr = xhr;
            state.running.add(item);
            updateItem(item, 'uploading', 0);
            updateSummary();

            xhr.open(method, action, true);
            xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
            xhr.setRequestHeader('Accept', 'application/json, text/html;q=0.9, */*;q=0.8');

            if (csrfToken) {
                xhr.setRequestHeader('X-CSRF-TOKEN', csrfToken);
            }

            xhr.upload.onprogress = function (event) {
                if (!event.lengthComputable) {
                    return;
                }

                updateItem(item, 'uploading', event.loaded);
                updateSummary();
            };

            xhr.onload = function () {
                state.running.delete(item);
                item.xhr = null;

                if (xhr.status >= 200 && xhr.status < 300 && !hasHtmlUploadError(xhr)) {
                    state.lastRedirectUrl = xhr.responseURL || state.lastRedirectUrl;
                    state.completed += 1;
                    updateItem(item, 'done', item.file.size);
                } else {
                    state.failed += 1;
                    updateItem(item, 'failed', item.loaded, extractError(xhr));
                }

                updateSummary();
                runNext();
            };

            xhr.onerror = function () {
                state.running.delete(item);
                item.xhr = null;
                state.failed += 1;
                updateItem(item, 'failed', item.loaded, 'Ошибка сети');
                updateSummary();
                runNext();
            };

            xhr.onabort = function () {
                state.running.delete(item);
                item.xhr = null;
                updateItem(item, 'cancelled', item.loaded);
                updateSummary();
            };

            xhr.send(formData);
        }

        function runNext() {
            if (state.isCancelled) {
                return;
            }

            while (state.running.size < maxParallelUploads) {
                const nextItem = state.queue.find(function (item) {
                    return item.status === 'pending';
                });

                if (!nextItem) {
                    break;
                }

                uploadItem(nextItem);
            }

            const hasPending = state.queue.some(function (item) { return item.status === 'pending'; });

            if (!hasPending && state.running.size === 0 && state.failed === 0 && state.completed > 0) {
                setTimeout(refreshAfterUpload, 700);
            }
        }

        function startUpload(form) {
            const hasActiveUpload = state.running.size > 0 || state.queue.some(function (item) {
                return item.status === 'pending' || item.status === 'uploading';
            });

            if (hasActiveUpload) {
                customAlert('Дождитесь завершения текущей загрузки файлов.');
                return;
            }

            const elements = getElements();
            state.queue = buildQueue(form);
            state.running = new Set();
            state.completed = 0;
            state.failed = 0;
            state.totalBytes = state.queue.reduce(function (sum, item) {
                return sum + item.file.size;
            }, 0);
            state.lastRedirectUrl = '';
            state.isCancelled = false;
            state.activeForm = form;

            elements.list.innerHTML = '';
            state.queue.forEach(function (item) {
                elements.list.appendChild(item.row);
                updateItem(item, 'pending', 0);
            });

            state.modal.show();
            updateSummary();
            runNext();
        }

        function cancelUploads() {
            state.isCancelled = true;
            state.queue.forEach(function (item) {
                if (item.status === 'pending') {
                    updateItem(item, 'cancelled', 0);
                }
            });
            state.running.forEach(function (item) {
                if (item.xhr) {
                    item.xhr.abort();
                }
            });
            updateSummary();
        }

        function retryFailedUploads() {
            state.queue.forEach(function (item) {
                if (item.status === 'failed') {
                    updateItem(item, 'pending', 0);
                }
            });

            state.failed = 0;
            state.isCancelled = false;
            updateSummary();
            runNext();
        }

        function refreshAfterUpload() {
            const redirectUrl = state.lastRedirectUrl;

            if (redirectUrl && redirectUrl.startsWith(window.location.origin)) {
                window.location.href = redirectUrl;
                return;
            }

            window.location.reload();
        }

        document.addEventListener('submit', function (event) {
            const form = event.target;

            if (!(form instanceof HTMLFormElement)
                || uploadForms.has(form)
                || form.matches('[data-chat-form]')
                || form.dataset.uploadNative === '1'
                || !form.matches('form[enctype="multipart/form-data"]')
                || getSelectedFiles(form).length === 0) {
                return;
            }

            event.preventDefault();
            event.stopPropagation();
            uploadForms.add(form);
            startUpload(form);
            setTimeout(function () {
                uploadForms.delete(form);
            }, 0);
        }, true);

        document.addEventListener('change', function (event) {
            const input = event.target;

            if (!(input instanceof HTMLInputElement)
                || input.type !== 'file'
                || !input.getAttribute('onchange')?.includes('submit')
                || !input.form
                || input.form.matches('[data-chat-form]')
                || input.form.dataset.uploadNative === '1'
                || !input.form.matches('form[enctype="multipart/form-data"]')
                || getSelectedFiles(input.form).length === 0) {
                return;
            }

            event.preventDefault();
            event.stopImmediatePropagation();
            startUpload(input.form);
        }, true);
    }

    function initMobileDatePicker() {
        const mobileQuery = window.matchMedia('(max-width: 767.98px)');
        const coarsePointer = window.matchMedia('(pointer: coarse)');

        if (!mobileQuery.matches || !coarsePointer.matches) {
            return;
        }

        const dateInputs = Array.from(document.querySelectorAll('input[type="date"]')).filter(function (input) {
            return !input.disabled && !input.dataset.mobileDateEnhanced;
        });

        if (!dateInputs.length) {
            return;
        }

        const monthFormatter = new Intl.DateTimeFormat('ru-RU', {
            month: 'long',
            year: 'numeric',
        });
        const displayFormatter = new Intl.DateTimeFormat('ru-RU');
        const weekdayLabels = ['Пн', 'Вт', 'Ср', 'Чт', 'Пт', 'Сб', 'Вс'];

        const overlay = document.createElement('div');
        overlay.className = 'mobile-date-picker';
        overlay.hidden = true;
        overlay.innerHTML = '' +
            '<div class="mobile-date-picker__dialog" role="dialog" aria-modal="true" aria-label="Выбор даты">' +
                '<div class="mobile-date-picker__header">' +
                    '<button type="button" class="btn btn-link mobile-date-picker__close" aria-label="Закрыть"><i class="bi bi-x-lg"></i></button>' +
                    '<div class="mobile-date-picker__title"></div>' +
                    '<button type="button" class="btn btn-link mobile-date-picker__today">Сегодня</button>' +
                '</div>' +
                '<div class="mobile-date-picker__month-nav">' +
                    '<button type="button" class="btn btn-link mobile-date-picker__nav mobile-date-picker__nav--prev" aria-label="Предыдущий месяц"><i class="bi bi-chevron-left"></i></button>' +
                    '<div class="mobile-date-picker__month-label"></div>' +
                    '<button type="button" class="btn btn-link mobile-date-picker__nav mobile-date-picker__nav--next" aria-label="Следующий месяц"><i class="bi bi-chevron-right"></i></button>' +
                '</div>' +
                '<div class="mobile-date-picker__weekdays"></div>' +
                '<div class="mobile-date-picker__grid"></div>' +
                '<div class="mobile-date-picker__footer">' +
                    '<button type="button" class="btn btn-outline-secondary mobile-date-picker__clear">Очистить</button>' +
                    '<button type="button" class="btn btn-primary mobile-date-picker__apply">Готово</button>' +
                '</div>' +
            '</div>';
        document.body.appendChild(overlay);

        const titleEl = overlay.querySelector('.mobile-date-picker__title');
        const monthLabelEl = overlay.querySelector('.mobile-date-picker__month-label');
        const weekdaysEl = overlay.querySelector('.mobile-date-picker__weekdays');
        const gridEl = overlay.querySelector('.mobile-date-picker__grid');
        const closeBtn = overlay.querySelector('.mobile-date-picker__close');
        const todayBtn = overlay.querySelector('.mobile-date-picker__today');
        const clearBtn = overlay.querySelector('.mobile-date-picker__clear');
        const applyBtn = overlay.querySelector('.mobile-date-picker__apply');
        const prevBtn = overlay.querySelector('.mobile-date-picker__nav--prev');
        const nextBtn = overlay.querySelector('.mobile-date-picker__nav--next');

        weekdaysEl.innerHTML = weekdayLabels.map(function (day) {
            return '<div class="mobile-date-picker__weekday">' + day + '</div>';
        }).join('');

        function parseIsoDate(value) {
            if (!value || !/^\d{4}-\d{2}-\d{2}$/.test(value)) {
                return null;
            }

            const parts = value.split('-').map(Number);
            const date = new Date(parts[0], parts[1] - 1, parts[2]);

            if (Number.isNaN(date.getTime())) {
                return null;
            }

            return date;
        }

        function formatIsoDate(date) {
            const year = date.getFullYear();
            const month = String(date.getMonth() + 1).padStart(2, '0');
            const day = String(date.getDate()).padStart(2, '0');

            return year + '-' + month + '-' + day;
        }

        function formatDisplayDate(value) {
            const date = parseIsoDate(value);

            return date ? displayFormatter.format(date) : '';
        }

        function normalizeMonthLabel(date) {
            const label = monthFormatter.format(date);

            return label.charAt(0).toUpperCase() + label.slice(1);
        }

        function startOfMonth(date) {
            return new Date(date.getFullYear(), date.getMonth(), 1);
        }

        function isSameDate(a, b) {
            return a && b
                && a.getFullYear() === b.getFullYear()
                && a.getMonth() === b.getMonth()
                && a.getDate() === b.getDate();
        }

        const state = {
            activeInput: null,
            hiddenInput: null,
            displayInput: null,
            selectedDate: null,
            draftDate: null,
            viewDate: startOfMonth(new Date()),
        };

        function syncDisplay(hiddenInput, displayInput) {
            displayInput.value = formatDisplayDate(hiddenInput.value);
            displayInput.classList.toggle('mobile-date-input--empty', !hiddenInput.value);
        }

        function closePicker() {
            overlay.hidden = true;
            document.body.classList.remove('mobile-date-picker-open');
            state.activeInput = null;
            state.hiddenInput = null;
            state.displayInput = null;
            state.selectedDate = null;
            state.draftDate = null;
        }

        function renderCalendar() {
            const today = new Date();
            const monthStart = startOfMonth(state.viewDate);
            const gridStart = new Date(monthStart);
            const firstWeekday = (monthStart.getDay() + 6) % 7;

            gridStart.setDate(monthStart.getDate() - firstWeekday);

            monthLabelEl.textContent = normalizeMonthLabel(monthStart);
            gridEl.innerHTML = '';

            for (let index = 0; index < 42; index += 1) {
                const day = new Date(gridStart);
                day.setDate(gridStart.getDate() + index);

                const button = document.createElement('button');
                button.type = 'button';
                button.className = 'mobile-date-picker__day';
                button.textContent = String(day.getDate());
                button.dataset.value = formatIsoDate(day);

                if (day.getMonth() !== monthStart.getMonth()) {
                    button.classList.add('is-outside');
                }

                if (isSameDate(day, today)) {
                    button.classList.add('is-today');
                }

                if (state.draftDate && isSameDate(day, state.draftDate)) {
                    button.classList.add('is-selected');
                }

                button.addEventListener('click', function () {
                    state.draftDate = parseIsoDate(button.dataset.value);
                    renderCalendar();
                });

                gridEl.appendChild(button);
            }
        }

        function openPicker(hiddenInput, displayInput) {
            state.activeInput = hiddenInput;
            state.hiddenInput = hiddenInput;
            state.displayInput = displayInput;
            state.selectedDate = parseIsoDate(hiddenInput.value);
            state.draftDate = state.selectedDate;
            state.viewDate = startOfMonth(state.selectedDate || new Date());

            titleEl.textContent = hiddenInput.dataset.mobileDateTitle || 'Выбор даты';
            overlay.hidden = false;
            document.body.classList.add('mobile-date-picker-open');
            renderCalendar();
        }

        closeBtn.addEventListener('click', closePicker);

        overlay.addEventListener('click', function (event) {
            if (event.target === overlay) {
                closePicker();
            }
        });

        prevBtn.addEventListener('click', function () {
            state.viewDate = new Date(state.viewDate.getFullYear(), state.viewDate.getMonth() - 1, 1);
            renderCalendar();
        });

        nextBtn.addEventListener('click', function () {
            state.viewDate = new Date(state.viewDate.getFullYear(), state.viewDate.getMonth() + 1, 1);
            renderCalendar();
        });

        todayBtn.addEventListener('click', function () {
            state.draftDate = startOfMonth(new Date());
            state.draftDate = new Date(state.draftDate.getFullYear(), state.draftDate.getMonth(), new Date().getDate());
            state.viewDate = startOfMonth(state.draftDate);
            renderCalendar();
        });

        clearBtn.addEventListener('click', function () {
            if (!state.hiddenInput || !state.displayInput) {
                return;
            }

            state.hiddenInput.value = '';
            state.hiddenInput.dispatchEvent(new Event('input', { bubbles: true }));
            state.hiddenInput.dispatchEvent(new Event('change', { bubbles: true }));
            syncDisplay(state.hiddenInput, state.displayInput);
            closePicker();
        });

        applyBtn.addEventListener('click', function () {
            if (!state.hiddenInput || !state.displayInput || !state.draftDate) {
                closePicker();
                return;
            }

            state.hiddenInput.value = formatIsoDate(state.draftDate);
            state.hiddenInput.dispatchEvent(new Event('input', { bubbles: true }));
            state.hiddenInput.dispatchEvent(new Event('change', { bubbles: true }));
            syncDisplay(state.hiddenInput, state.displayInput);
            closePicker();
        });

        document.addEventListener('keydown', function (event) {
            if (event.key === 'Escape' && !overlay.hidden) {
                closePicker();
            }
        });

        dateInputs.forEach(function (input) {
            input.dataset.mobileDateEnhanced = '1';
            input.dataset.mobileDateTitle = input.closest('.row')?.querySelector('label[for="' + input.id + '"]')?.textContent.trim() || 'Выбор даты';

            const displayInput = input.cloneNode(false);
            displayInput.type = 'text';
            displayInput.removeAttribute('name');
            displayInput.value = '';
            displayInput.readOnly = true;
            displayInput.dataset.mobileDateDisplay = '1';
            displayInput.classList.add('mobile-date-input');
            displayInput.placeholder = 'Выберите дату';
            input.type = 'hidden';
            input.dataset.mobileDateHidden = '1';

            input.parentNode.insertBefore(displayInput, input.nextSibling);
            syncDisplay(input, displayInput);

            displayInput.addEventListener('click', function () {
                openPicker(input, displayInput);
            });
        });
    }

    function cleanupStaleModalState() {
        if (!document.querySelector('.modal.show')) {
            document.querySelectorAll('.modal-backdrop').forEach(function (backdrop) {
                backdrop.remove();
            });

            document.body.classList.remove('modal-open');
            document.body.style.removeProperty('padding-right');
            document.body.style.removeProperty('overflow');
        }
    }

    function getNotificationBadge() {
        return document.getElementById('notification-badge');
    }

    function updateNotificationBadge(count) {
        const badge = getNotificationBadge();
        if (!badge) {
            return;
        }

        const safeCount = Math.max(0, parseInt(count || 0, 10));
        badge.dataset.count = String(safeCount);
        badge.classList.toggle('d-none', safeCount === 0);
    }

    function incrementNotificationBadge() {
        const badge = getNotificationBadge();
        if (!badge) {
            return;
        }

        const current = parseInt(badge.dataset.count || '0', 10);
        updateNotificationBadge(current + 1);
    }

    function markNotificationRead(notificationId) {
        if (!notificationId || !window.notificationsReadUrlTemplate) {
            return;
        }

        fetch(window.notificationsReadUrlTemplate.replace('__id__', String(notificationId)), {
            method: 'POST',
            headers: {
                'X-CSRF-TOKEN': document.querySelector('meta[name="csrf-token"]').getAttribute('content'),
                'Accept': 'application/json',
            },
            keepalive: true,
        })
            .then(function (response) {
                if (!response.ok) {
                    return null;
                }
                return response.json();
            })
            .then(function (data) {
                if (data && typeof data.unread !== 'undefined') {
                    updateNotificationBadge(data.unread);
                }
            })
            .catch(function () {
                // noop
            });
    }

    function appendWsPopup(notification) {
        const container = document.getElementById('ws-notification-container');
        if (!container || !notification) {
            return;
        }

        const popup = document.createElement('div');
        popup.className = 'ws-notification-popup';
        popup.dataset.id = String(notification.id || '');

        const safeTitle = notification.title || 'Уведомление';
        const bodyHtml = notification.message_html || notification.message || '';

        popup.innerHTML =
            '<div class="ws-notification-header">' +
            '<strong>' + safeTitle + '</strong>' +
            '<button type="button" class="btn-close btn-sm ws-notification-close" aria-label="Закрыть"></button>' +
            '</div>' +
            '<div class="ws-notification-body">' + bodyHtml + '</div>';

        const closeBtn = popup.querySelector('.ws-notification-close');
        if (closeBtn) {
            closeBtn.addEventListener('click', function (event) {
                event.stopPropagation();
                markNotificationRead(notification.id);
                popup.remove();
            });
        }

        container.appendChild(popup);
    }

    cleanupStaleModalState();
    initQueuedUploads();
    initMobileDatePicker();
    window.addEventListener('pageshow', cleanupStaleModalState);

    if ($('.main-alert').length) {
        setTimeout(function () {
            $('.main-alert').fadeTo(2000, 500).slideUp(500, function () {
                $('.main-alert').slideUp(500);
            });
        }, 3000);
    }

    const user = localStorage.getItem('user');
    if (user > 0) {
        const socket = new WebSocket(localStorage.getItem('socketAddress'));
        socket.onopen = function () {
            console.log('[WS] Connected. Listen messages for user ' + user);
        };

        socket.onmessage = function (event) {
            const received = JSON.parse(event.data);
            if (parseInt(received.data.user_id, 10) !== parseInt(user, 10)) {
                return;
            }

            const action = received.data.action;
            if (action === 'persistent_notification') {
                incrementNotificationBadge();
                appendWsPopup(received.data.notification);
                return;
            }

            if (action !== 'message') {
                return;
            }

            if (received.data.payload.download) {
                document.location.href = '/storage/export/' + received.data.payload.download;
            }

            if (received.data.payload.link) {
                document.location.href = received.data.payload.link;
                setTimeout(function () {
                    document.location.reload();
                }, 2000);
            }

            setTimeout(function () {
                if (received.data.payload.error) {
                    $('.alerts').append('<div class="main-alert2 alert alert-danger" role="alert">' + received.data.message + '</div>');
                } else {
                    $('.alerts').append('<div class="main-alert2 alert alert-success" role="alert">' + received.data.message + '</div>');
                }
                setTimeout(function () {
                    $('.main-alert2').fadeTo(2000, 500).slideUp(500, function () {
                        $('.main-alert2').slideUp(500);
                    });
                }, 3000);
            }, 1000);
        };

        socket.onclose = function (event) {
            if (event.wasClean) {
                console.log('[WS] Closed clear, code=' + event.code + ' reason=' + event.reason);
            } else {
                console.log('[WS] Connection lost', event);
            }
        };

        socket.onerror = function (error) {
            console.log('[error]', error);
        };
    }
});