document.addEventListener('DOMContentLoaded', () => {
    const tableState = { data: [], page: 1, pageSize: 10, search: '', lastPage: 1, total: 0, startDate: '', endDate: '' };
    const tbody = document.getElementById('tablePendingFile');
    const paginationEl = document.getElementById('paginationControls');
    const summaryEl = document.getElementById('tableSummary');
    const pageSizeSelect = document.getElementById('tablePageSize');
    const startDateInput = document.getElementById('startDate');
    const endDateInput = document.getElementById('endDate');
    const csrfToken = document.querySelector('meta[name="csrf-token"]')?.getAttribute('content');

    if (pageSizeSelect) {
        const initialSize = parseInt(pageSizeSelect.value);
        if (!isNaN(initialSize)) tableState.pageSize = initialSize;
        pageSizeSelect.addEventListener('change', (e) => {
            const val = parseInt(e.target.value);
            if (!isNaN(val) && val > 0) {
                tableState.pageSize = val;
                tableState.page = 1;
                fetchData();
            }
        });
    }

    window.applyDateFilter = function(){
        tableState.startDate = startDateInput.value || '';
        tableState.endDate = endDateInput.value || '';
        tableState.page = 1;
        fetchData();
    }

    function formatTanggal(dateString) {
        if (!dateString) return '-';
        const d = new Date(dateString);
        return d.toLocaleDateString('id-ID', {
            day: '2-digit',
            month: 'short',
            year: 'numeric',
            hour: '2-digit',
            minute: '2-digit'
        });
    }

    function buildRow(item){
        let tanggal = item.entry_at ? formatTanggal(item.entry_at) : '-';
        const aksi = `
            <div class="d-flex gap-1">
                <button class="btn btn-sm btn-success" onclick="approvePending('${item.file_directory_id}', '${item.fileName || ''}')">
                    <i class="fa-solid fa-check"></i>
                </button>
                <button class="btn btn-sm btn-danger" onclick="rejectPending('${item.file_directory_id}', '${item.fileName || ''}')">
                    <i class="fa-solid fa-xmark"></i>
                </button>
            </div>
        `;
        return `
            <tr>
                <td>${aksi}</td>
                <td>${item.no_dokumen || '-'}</td>
                <td><a href="#" class="file-link"
                    data-file="${item.file}"
                    data-fileName="${item.fileName}"
                    data-id="${item.file_directory_id}"
                    data-no_dokumen="${item.no_dokumen || '-'}"
                    data-tanggal_terbit="${item.tanggal_terbit || '-'}"
                    data-permission_file="${item.permission_file || '-'}">${item.fileName}</a></td>
                <td>${item.folder || '-'}</td>
                <td>${item.part || '-'}</td>
                <td class="text-nowrap">${tanggal}</td>
            </tr>
        `;
    }

    function renderPagination(totalPages){
        if (!paginationEl) return;
        if (totalPages <= 1) {
            paginationEl.innerHTML = '';
            return;
        }
        const maxButtons = 5;
        let start = Math.max(1, tableState.page - Math.floor(maxButtons/2));
        let end = Math.min(totalPages, start + maxButtons - 1);
        start = Math.max(1, end - maxButtons + 1);

        let buttons = '';
        buttons += `<button class="btn btn-outline-secondary btn-sm" data-page="prev" ${tableState.page === 1 ? 'disabled' : ''}>‹</button>`;
        for (let i = start; i <= end; i++) {
            buttons += `<button class="btn btn-sm ${i === tableState.page ? 'btn-primary' : 'btn-outline-secondary'}" data-page="${i}">${i}</button>`;
        }
        buttons += `<button class="btn btn-outline-secondary btn-sm" data-page="next" ${tableState.page === totalPages ? 'disabled' : ''}>›</button>`;

        paginationEl.innerHTML = `
            <div class="d-flex align-items-center gap-2 flex-wrap">
                <div class="btn-group" role="group">${buttons}</div>
                <span class="small text-muted">Halaman ${tableState.page} dari ${totalPages}</span>
            </div>
        `;
    }

    if (paginationEl) {
        paginationEl.addEventListener('click', (e) => {
            const page = e.target.getAttribute('data-page');
            if (!page) return;
            if (page === 'prev' && tableState.page > 1) tableState.page--;
            else if (page === 'next') {
                if (tableState.page < tableState.lastPage) tableState.page++;
            } else {
                tableState.page = parseInt(page);
            }
            fetchData();
        });
    }

    function renderTable(){
        const pageData = tableState.data || [];
        if (pageData.length === 0) {
            tbody.innerHTML = `
                <tr>
                    <td colspan="4" class="text-center text-muted py-4">
                        Tidak ada data
                    </td>
                </tr>
            `;
        } else {
            tbody.innerHTML = pageData.map(buildRow).join('');
        }

        const from = tableState.total === 0 ? 0 : ((tableState.page - 1) * tableState.pageSize) + 1;
        const to = Math.min(((tableState.page - 1) * tableState.pageSize) + pageData.length, tableState.total);
        if (summaryEl) {
            summaryEl.textContent = tableState.total ? `Menampilkan ${from} - ${to} dari ${tableState.total} data` : 'Tidak ada data';
        }

        renderPagination(tableState.lastPage || 1);
    }

    let searchDebounce;
    window.debouncedTableSearch = function(value){
        clearTimeout(searchDebounce);
        searchDebounce = setTimeout(() => {
            tableState.search = value.trim();
            tableState.page = 1;
            fetchData();
        }, 250);
    }

    window.refreshLog = function(){
        tableState.search = '';
        tableState.startDate = '';
        tableState.endDate = '';
        document.getElementById('tableSearch').value = '';
        startDateInput.value = '';
        endDateInput.value = '';
        tableState.page = 1;
        fetchData();
    }

    function fetchData(){
        if (summaryEl) summaryEl.textContent = 'Memuat data...';
        const params = new URLSearchParams({
            page: tableState.page,
            per_page: tableState.pageSize,
            keyword: tableState.search || '',
            start_date: tableState.startDate || '',
            end_date: tableState.endDate || ''
        });
        fetch(`/datatable/pending-file?${params.toString()}`)
            .then(res => res.json())
            .then(data => {
                tableState.data = data?.data || [];
                tableState.lastPage = data?.pagination?.last_page || 1;
                tableState.total = data?.pagination?.total || 0;
                renderTable();
            })
            .catch(err => {
                console.error(err);
                if (summaryEl) summaryEl.textContent = 'Gagal memuat data';
            });
    }

    window.approvePending = function(id, fileName){
        Swal.fire({
            title: 'Approve dokumen?',
            text: fileName || 'Dokumen akan disetujui.',
            icon: 'question',
            showCancelButton: true,
            confirmButtonText: 'Approve',
            cancelButtonText: 'Batal',
        }).then((result) => {
            if (!result.isConfirmed) return;
            fetch(`/pending-file/${id}/approve`, {
                method: 'POST',
                headers: {
                    'X-CSRF-TOKEN': csrfToken,
                    'Content-Type': 'application/json'
                },
            }).then(async(res) => {
                const data = await res.json();
                if (!res.ok || !data?.status) {
                    throw new Error(data?.message || 'Gagal approve.');
                }
                Swal.fire({
                    icon: 'success',
                    title: 'Berhasil',
                    text: data.message || 'Dokumen disetujui.',
                    timer: 1500,
                    showConfirmButton: false
                });
                countData()
                fetchData();
            }).catch((err) => {
                Swal.fire({
                    icon: 'error',
                    title: 'Gagal',
                    text: err.message || 'Terjadi kesalahan.'
                });
            });
        });
    }

    window.rejectPending = function(id, fileName){
        Swal.fire({
            title: 'Reject dokumen?',
            text: fileName || 'Dokumen akan ditolak.',
            icon: 'warning',
            showCancelButton: true,
            confirmButtonText: 'Reject',
            cancelButtonText: 'Batal',
        }).then((result) => {
            if (!result.isConfirmed) return;
            fetch(`/pending-file/${id}/reject`, {
                method: 'POST',
                headers: {
                    'X-CSRF-TOKEN': csrfToken,
                    'Content-Type': 'application/json'
                },
            }).then(async(res) => {
                const data = await res.json();
                if (!res.ok || !data?.status) {
                    throw new Error(data?.message || 'Gagal reject.');
                }
                Swal.fire({
                    icon: 'success',
                    title: 'Berhasil',
                    text: data.message || 'Dokumen ditolak.',
                    timer: 1500,
                    showConfirmButton: false
                });
                countData()
                fetchData();
            }).catch((err) => {
                Swal.fire({
                    icon: 'error',
                    title: 'Gagal',
                    text: err.message || 'Terjadi kesalahan.'
                });
            });
        });
    }

    fetchData();


});
document.addEventListener('click', function(e){
            if(e.target.matches('.file-link')){
                e.preventDefault();
                let fileUrl = e.target.getAttribute('data-file');
                let noDokumen = e.target.getAttribute('data-no_dokumen')
                let tanggalTerbit = e.target.getAttribute('data-tanggal_terbit')
                let permissionFile = e.target.getAttribute('data-permission_file')
                let fileName = e.target.getAttribute('data-fileName')
                currentFile = fileUrl;
                idDirectory = e.target.getAttribute('data-id');


                const titleEl = document.getElementById('confirm_preview_file');
                if (titleEl) titleEl.textContent = fileName;

                // set footer info
                const noEl = document.getElementById('confirm-upload-dokumen');
                if (noEl) noEl.textContent = noDokumen;

                const tglEl = document.getElementById('confirm-time-dokumen');

                if (tglEl) tglEl.textContent = tanggalTerbit;

                const permEl = document.getElementById('confirm-permission');
                if (permEl) {
                    const publicDoc = isPublic(permissionFile);
                    permEl.textContent = publicDoc ? 'Bisa dilihat unit lain' : 'Hanya unit ini';
                    permEl.className = 'badge ' + (publicDoc ? 'bg-success' : 'bg-secondary');
                }
                let previewBox = document.getElementById('file-preview');
                previewBox.innerHTML = `<iframe src="/file-preview/${idDirectory}" width="100%" height="500px" style="border:none;"></iframe>`;
                $("#previewModal").modal('show')
            }


            if(e.target.matches('#btn-view-full')){
                window.open(`/file-preview/${idDirectory}`, '_blank');
            }
        })
function isPublic(permissionVal){
            if(permissionVal === null || permissionVal === undefined) return false;
            const val = String(permissionVal).toLowerCase();
            return val === '1' || val === 'true' || val === 'iya' || val === 'yes';
        }