@extends('layout.main')
@section('body_main')
  <div class="row">
        <div class="col-md-12">
            <div class="card">
                <div class="card-body p-3">
                    <div class="tab-content">
                        <div class="tab-pane fade show active">
                            <div class="d-flex justify-content-between align-items-start mb-3">
                                <h4 class="mb-0">Dokumen Umum</h4>
                                <div class="d-flex align-items-start gap-3">
                                    <!-- DOWNLOAD + COUNT -->
                                        {{-- <a
                                            href="/download-excel/data-umum"
                                            class="btn btn-success btn-sm"
                                        >
                                            <i class="ti ti-download me-1"></i>
                                            Download Excel
                                        </a> --}}
                                    <div class="d-flex flex-column align-items-start">
                                        <button
                                            type="button"
                                            class="btn btn-primary btn-sm"
                                            id="btnDownloadMultiple"
                                            disabled
                                        >
                                            <i class="ti ti-download me-1"></i>
                                            Download Terpilih
                                        </button>

                                        <span
                                            id="selectedCount"
                                            class="small text-muted mt-1"
                                        >
                                            0 dipilih
                                        </span>
                                    </div>
                                    <!-- Tambah Dokumen -->
                                    <button
                                        type="button"
                                        class="btn btn-success btn-sm"
                                        data-bs-toggle="modal"
                                        data-bs-target="#modalCreateFile"
                                    >
                                        <i class="ti ti-plus me-1"></i>
                                        Tambah Dokumen
                                    </button>
                                </div>
                            </div>
                            <div class="d-flex flex-column flex-md-row align-items-md-center gap-2 mb-3">
                                <div class="d-flex flex-column flex-md-row align-items-md-center gap-2 flex-grow-1">
                                    <input type="search" id="tableSearch" class="form-control"
                                        placeholder="Cari nama dokumen atau No Dokumen" autocomplete="off">
                                </div>
                                <div class="d-flex align-items-center gap-2">

                                </div>
                            </div>
                            <div class="table-responsive" style="max-height: 70vh; overflow-y:auto;">
                            <table class="table table-sm table-hover align-middle mb-0 table-fixed" id="lastUpdatedTable">
                                <thead>
                                    <tr>
                                        <th class="text-center" style="width: 36px;">
                                            <input type="checkbox" id="checkAllRows" class="form-check-input">
                                        </th>
                                        <th>Aksi</th>
                                        <th>Nama Dokumen</th>
                                        <th>Tipe Dokumen</th>
                                        <th>Tanggal Unggah</th>
                                    </tr>
                                </thead>
                                <tbody id="tableDataAkreditasi">
                                    <!-- data dari fetch masuk sini -->
                                </tbody>
                            </table>
                            </div>
                            <div class="d-flex flex-wrap align-items-center gap-2 mt-3">
                                <div class="d-flex align-items-center gap-1">
                                    <span class="small text-muted">Tampilkan</span>
                                    <select id="tablePageSize" class="form-select form-select-sm" style="width: 80px;">
                                        <option value="5">5</option>
                                        <option value="10" selected>10</option>
                                        <option value="20">20</option>
                                        <option value="50">50</option>
                                        <option value="100">100</option>
                                    </select>
                                    <span class="small text-muted">data</span>
                                </div>

                                <div id="paginationControls" class="ms-auto"></div>

                                <div class="small text-muted text-nowrap" id="tableSummary">
                                    Memuat data...
                                </div>
                            </div>

                        </div>
                    </div>
                </div>

            </div>
        </div>
    </div>

    <script>
  // === STATE MANAGEMENT ===
    let currentData = [];
    let selectedIds = [];
    let currentPath = ""; 
    let searchTimer;

    // === INITIALIZATION ===
    document.addEventListener('DOMContentLoaded', () => {
        fetchData();
        initEventListeners();
    });

    // === EVENT LISTENERS ===
    function initEventListeners() {
        // Search dengan Debounce
        document.getElementById('tableSearch').addEventListener('input', (e) => {
            clearTimeout(searchTimer);
            searchTimer = setTimeout(() => {
                fetchData(e.target.value, 1);
            }, 500);
        });

        // Per Page Change
        document.getElementById('tablePageSize').addEventListener('change', (e) => {
            const keyword = document.getElementById('tableSearch').value;
            fetchData(keyword,1);
        });

        // Check All Rows
        document.getElementById('checkAllRows').addEventListener('change', function() {
            const checkboxes = document.querySelectorAll('.row-checkbox');
            selectedIds = [];
            checkboxes.forEach(cb => {
                cb.checked = this.checked;
                if (this.checked) selectedIds.push(cb.value);
            });
            updateDownloadButton();
        });
    }

    // === CORE FUNCTIONS ===

    /**
     * Mengambil data dari server
     */
    function fetchData(keyword = '', page = 1) {
        const tbody = document.getElementById('tableDataAkreditasi');
        const perPage = document.getElementById('tablePageSize').value;
        
        tbody.innerHTML = '<tr><td colspan="5" class="text-center">Memuat data...</td></tr>';

        fetch(`/datatable-akreditasi?keyword=${encodeURIComponent(keyword)}&per_page=${perPage}&page=${page}`)
            .then(res => res.json())
            .then(response => {
                if (response.status) {
                    currentData = response.data || [];
                    renderTable(keyword);
                    updateSummary(response.pagination.total);
                } else {
                    tbody.innerHTML = `<tr><td colspan="5" class="text-center text-danger">${response.message}</td></tr>`;
                }
            })
            .catch(err => {
                console.error('Error fetching data:', err);
                tbody.innerHTML = '<tr><td colspan="5" class="text-center text-danger">Gagal memuat data dari server.</td></tr>';
            });
    }

    /**
     * Merender tabel berdasarkan mode (Folder vs Search)
     */
    function renderTable(keyword = '') {
        const tbody = document.getElementById('tableDataAkreditasi');
        tbody.innerHTML = '';

        if (currentData.length === 0) {
            tbody.innerHTML = '<tr><td colspan="5" class="text-center">Tidak ada data ditemukan</td></tr>';
            return;
        }

        // MODE 1: SEARCH VIEW (Flat View - Langsung tampilkan semua file)
        if (keyword.length > 0) {
            currentData.forEach(item => renderFileRow(tbody, item));
            return;
        }

        // MODE 2: EXPLORER VIEW (Folder Navigation)
        
        // Tombol Kembali
        if (currentPath !== "") {
    const displayPath = currentPath
        .replace(/\/$/, "")
        .replace(/\//g, ' <i class="ti ti-chevron-right mx-1 text-muted"></i> ');

    tbody.innerHTML += `
        <tr class="table-light">
            <td></td>
            <td colspan="4">
                <div class="d-flex small">

                    <!-- Kembali -->
                    <div class="text-primary d-flex align-items-center cursor-pointer"
                         onclick="goBack()">
                        <i class="ti ti-arrow-back-up me-1"></i>
                        <span class="fw-semibold">Kembali</span>
                    </div>

                    <!-- Lokasi -->
                    <div class="d-flex align-items-center text-muted">
                        <i class="ti ti-folder-open me-1"></i>
                        <span class="fw-semibold me-1">Lokasi:</span>
                        <span>${displayPath}</span>
                    </div>

                </div>
            </td>
        </tr>
    `;
}

        const folders = new Set();
        const filesInCurrentPath = [];

        currentData.forEach(item => {
            if (item.file && item.file.startsWith(currentPath)) {
                const relativePath = item.file.substring(currentPath.length);
                const parts = relativePath.split('/');

                if (parts.length > 1) {
                    folders.add(parts[0]); // Ini Folder
                } else {
                    filesInCurrentPath.push(item); // Ini File
                }
            }
        });

        // Render Folder
        folders.forEach(folderName => {
            tbody.innerHTML += `
                <tr style="cursor:pointer" onclick="openFolder('${folderName}')">
                    <td></td>
                    <td><i class="ti ti-folder text-warning fs-5"></i></td>
                    <td><strong>${folderName}</strong></td>
                    <td colspan="2">Folder</td>
                </tr>`;
        });

        // Render File
        filesInCurrentPath.forEach(item => renderFileRow(tbody, item));
    }

    /**
     * Render Baris File (Digunakan di kedua mode)
     */
    function renderFileRow(targetTbody, item) {
        const fileName = item.file ? item.file.split('/').pop() : 'Unknown';
        const typeDok = fileName.split('.').pop().toUpperCase();
        const isChecked = selectedIds.includes(String(item.file_directory_id)) ? 'checked' : '';

        targetTbody.innerHTML += `
            <tr>
                <td class="text-center">
                    <input type="checkbox" class="form-check-input row-checkbox" 
                        value="${item.file_directory_id}" ${isChecked} onchange="handleRowCheck(this)">
                </td>
                <td>
                    <div class="btn-group">
                        <a href="/file-download/${item.file_directory_id}" target="_blank" 
                        class="btn btn-sm btn-outline-primary" download title="Download">
                            <i class="ti ti-download"></i>
                        </a>
                    </div>
                </td>
                <td>
                    <div class="d-flex flex-column">
                        <strong>${item.nama_dokumen || fileName}</strong>
                        <small class="text-muted" style="font-size: 10px;">Path: ${item.file}</small>
                    </div>
                </td>
                <td><span class="badge bg-light text-primary border">${typeDok}</span></td>
                <td>${item.entry_at || '-'}</td>
            </tr>`;
    }

    // === NAVIGATION FUNCTIONS ===

    function openFolder(name) {
        currentPath += name + "/";
        renderTable();
    }

    function goBack() {
        const parts = currentPath.split('/').filter(p => p !== "");
        parts.pop();
        currentPath = parts.length > 0 ? parts.join('/') + "/" : "";
        renderTable();
    }

    // === UTILITY FUNCTIONS ===

    function handleRowCheck(checkbox) {
        const val = String(checkbox.value);
        if (checkbox.checked) {
            if (!selectedIds.includes(val)) selectedIds.push(val);
        } else {
            selectedIds = selectedIds.filter(id => id !== val);
            document.getElementById('checkAllRows').checked = false;
        }
        updateDownloadButton();
    }

    function updateDownloadButton() {
        const btn = document.getElementById('btnDownloadMultiple');
        const countLabel = document.getElementById('selectedCount');
        btn.disabled = selectedIds.length === 0;
        countLabel.innerText = `${selectedIds.length} dipilih`;
    }

    function updateSummary(total) {
        const summary = document.getElementById('tableSummary');
        if (summary) summary.innerText = `Total: ${total} data`;
    }
</script>
@endsection