@extends('layouts.app')

@section('title')
    Dashboard
@endsection

@section('admin-content')
    <script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>
    <script src="https://cdn.jsdelivr.net/npm/autonumeric@4.6.0/dist/autoNumeric.min.js"></script>
    
    <section class="content-header">
        <div class="container-fluid">
            <div class="row mb-2">
                <div class="col-sm-6">
                    <h1>Edit Expense Up Country</h1>
                </div>
                <div class="col-sm-6">
                    <ol class="breadcrumb float-sm-right">
                        <li class="breadcrumb-item"><a href="{{ route('dashboard.index') }}">Dashboard</a></li>
                    </ol>
                </div>
            </div>
        </div>
    </section>
    
    <style>
        #loading-spinner-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5); 
            z-index: 9999; 
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .spinner-wrapper {
            text-align: center;
            color: white;
        }
    </style>
    
    @php
        $attachmentCategoryLabels = $attachmentCategoryLabels ?? ($upCountryAttachmentCategories ?? []);
        $attachmentCategories = $attachmentCategories ?? ($upCountryAttachmentCategoryKeys ?? array_keys($attachmentCategoryLabels));
    @endphp
    
    <section class="content">
        <div class="container-fluid">
            <div class="card card-primary card-outline">
                <div class="card-body">
                    <form id="expense-form" method="POST" action="{{ route('forms.up-country.update', $form->id) }}" enctype="multipart/form-data">
                        @csrf
                        @method('PUT')
                        @include('backend.layouts.partials.messages')
                        <div class="row">
                            <div class="col-lg-6">
                                <div class="mb-3">
                                    <label class="form-label">Pilih Rayon <span class="font-italic font-weight-normal">(required)</span></label>
                                    <select class="form-control form-control-md" name="rayon_id" required>
                                        <option value="">Pilih Rayon</option>
                                        @foreach ($rayons as $rayon)
                                            <option value="{{ $rayon->id }}" {{ $form->rayon_id == $rayon->id ? 'selected' : '' }}>
                                                {{ $rayon->name }}{{ $rayon->cabang ? ' - ' . $rayon->cabang->name : '' }}
                                            </option>
                                        @endforeach
                                    </select>
                                </div>
                                <div class="mb-3">
                                    <label class="form-label">Tanggal <span class="font-italic font-weight-normal">(required)</span></label>
                                   <input type="date" class="form-control" name="tanggal" required 
    value="{{ old('tanggal', !empty($form->tanggal) ? date('Y-m-d', strtotime($form->tanggal)) : '') }}">
                                </div>
                                <div class="mb-3">
                                    <label class="form-label">Tujuan <span class="font-italic font-weight-normal">(required)</span></label>
                                    <input type="text" class="form-control" name="tujuan" required value="{{ $form->tujuan }}">
                                </div>
                                <div class="mb-3">
                                    <label class="form-label">Jarak (km) <span class="font-italic font-weight-normal">(required)</span></label>
                                    <input type="number" class="form-control" name="jarak" required value="{{ $form->jarak }}">
                                </div>
                                <div class="mb-3">
                                    <label class="form-label">Allowance <span class="font-italic font-weight-normal">(optional)</span></label>
                                    <input type="text" class="form-control" name="allowance" id="allowance" value="{{ $form->allowance }}">
                                </div>
                            </div>

                            <div class="col-lg-6">
                                <div class="mb-3">
                                    <label class="form-label">Transport Dalam Kota <span class="font-italic font-weight-normal">(optional)</span></label>
                                    <input type="text" class="form-control" name="transport_dalkot" id="transport_dalkot" value="{{  $form->transport_dalkot }}">
                                </div>
                                <div class="mb-3">
                                    <label class="form-label">Transport Antar Kota <span class="font-italic font-weight-normal">(optional)</span></label>
                                    <input type="text" class="form-control" name="transport_ankot" id="transport_ankot" value="{{ $form->transport_ankot }}">
                                </div>
                                <div class="mb-3">
                                    <label class="form-label">Hotel <span class="font-italic font-weight-normal">(optional)</span></label>
                                    <input type="text" class="form-control" name="hotel" id="hotel" value="{{ $form->hotel }}">
                                </div>
                            </div>

                            <div class="col-lg-12">
                                <div class="mb-4">
                                    <label class="form-label mb-0">Lampiran Tersimpan</label>
                                    <p class="text-muted small mt-1 mb-2">Pratinjau, unduh, atau hapus lampiran yang telah diunggah sebelumnya.</p>
                                    <div class="table-responsive">
                                        <table class="table table-bordered align-middle" id="existing-attachments-table">
                                            <thead class="table-light">
                                                <tr>
                                                    <th style="width: 30%">Kategori Lampiran</th>
                                                    <th style="width: 30%">Nama File</th>
                                                    <th style="width: 15%" class="text-center">Pratinjau</th>
                                                    <th style="width: 15%" class="text-center">Unduh</th>
                                                    <th style="width: 10%" class="text-center">Aksi</th>
                                                </tr>
                                            </thead>
                                            <tbody>
                                                @forelse ($attachments as $attachment)
                                                    @php
                                                        $categoryValue = $attachment['file_category'] ?? null;
                                                        $categoryLabel = $categoryValue
                                                            ? ($attachmentCategoryLabels[$categoryValue] ?? ucwords(str_replace('_', ' ', $categoryValue)))
                                                            : '-';
                                                    @endphp
                                                    <tr data-attachment-id="{{ $attachment['id'] }}">
                                                        <td>{{ $categoryLabel }}</td>
                                                        <td>{{ $attachment['filename'] ?? basename($attachment['file_path']) }}</td>
                                                        <td class="text-center">
                                                            <button type="button"
                                                                class="btn btn-sm btn-outline-secondary preview-existing-attachment"
                                                                data-preview-url="{{ $attachment['preview_url'] }}"
                                                                data-download-url="{{ $attachment['download_url'] }}"
                                                                data-preview-type="{{ $attachment['preview_type'] }}"
                                                                data-category="{{ $categoryLabel }}">
                                                                Pratinjau
                                                            </button>
                                                        </td>
                                                        <td class="text-center">
                                                            <a href="{{ $attachment['download_url'] }}"
                                                               target="_blank"
                                                               class="btn btn-sm btn-outline-primary">
                                                                Unduh
                                                            </a>
                                                        </td>
                                                        <td class="text-center">
                                                            <button type="button"
                                                                    class="btn btn-sm btn-outline-danger delete-attachment"
                                                                    data-delete-url="{{ route('forms.up-country.attachments.destroy', [$form->id, $attachment['id']]) }}">
                                                                <i class="fas fa-trash"></i>
                                                            </button>
                                                        </td>
                                                    </tr>
                                                @empty
                                                    <tr class="existing-attachments-empty text-center text-muted">
                                                        <td colspan="5">Belum ada lampiran tersimpan.</td>
                                                    </tr>
                                                @endforelse
                                            </tbody>
                                        </table>
                                    </div>
                                </div>
                            </div>

                            <div class="col-lg-12">
                                <div class="mb-3">
                                    <div class="d-flex align-items-center justify-content-between">
                                        <label class="form-label mb-0">Tambah Lampiran Baru</label>
                                        <button type="button" class="btn btn-outline-primary btn-sm" id="add-new-attachment-row">
                                            <i class="fas fa-plus me-1"></i> Tambah Lampiran
                                        </button>
                                    </div>
                                    <p class="text-muted small mt-1 mb-2">
                                        Format file yang diperbolehkan: JPG, JPEG, PNG, atau PDF. Ukuran maksimum 5 MB per file.
                                    </p>
                                    <div class="table-responsive">
                                        <table class="table table-bordered align-middle" id="new-attachments-table">
                                            <thead class="table-light">
                                                <tr>
                                                    <th style="width: 30%">Kategori Lampiran</th>
                                                    <th style="width: 45%">Lampiran</th>
                                                    <th style="width: 15%" class="text-center">Pratinjau</th>
                                                    <th style="width: 10%" class="text-center">Aksi</th>
                                                </tr>
                                            </thead>
                                            <tbody>
                                                <tr class="new-attachments-empty text-center text-muted">
                                                    <td colspan="4">Belum ada lampiran baru.</td>
                                                </tr>
                                            </tbody>
                                        </table>
                                    </div>
                                </div>
                            </div>

                            <div class="col-lg-12">
                                <div class="mb-3">
                                    <label class="form-label">UC Plan <span class="font-italic font-weight-normal">(optional)</span></label>
                                    <input type="file" class="form-control" name="uc_plan" value="{{ old('uc_plan') }}">
                                </div>
                            </div>

                            <button type="submit" class="btn btn-primary ml-2">Save</button>
                        </div>
                    </form>

                    @include('backend.components.attachment-preview-modal', [
                        'modalId' => 'existingAttachmentPreviewModal',
                        'title' => 'Pratinjau Lampiran',
                    ])

                    @include('backend.components.attachment-preview-modal', [
                        'modalId' => 'newAttachmentPreviewModal',
                        'title' => 'Pratinjau Lampiran',
                    ])

                    <div id="loading-spinner-overlay" class="d-none">
                        <div class="spinner-wrapper">
                            <div class="spinner-border text-primary" role="status">
                            </div>
                            <p class="mt-2">Sedang mengirim, mohon tunggu...</p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <script>
        $(document).ready(function() {
            try {
                // ==========================================
                // 1. INISIALISASI AUTONUMERIC ASLI (KEMBALI NORMAL & ANTI MINUS)
                // ==========================================
                const autoNumericConfig = {
                    digitGroupSeparator: '.',
                    decimalCharacter: ',',
                    currencySymbol: 'Rp. ',
                    decimalPlaces: 0,
                    minimumValue: '0', // Mencegah nilai minus
                    unformatOnSubmit: true // Mengirimkan angka bersih ke backend
                };

                const allowanceInput = new AutoNumeric('#allowance', autoNumericConfig);
                const dalkotInput    = new AutoNumeric('#transport_dalkot', autoNumericConfig);
                const ankotInput     = new AutoNumeric('#transport_ankot', autoNumericConfig);
                const hotelInput     = new AutoNumeric('#hotel', autoNumericConfig);


                // ==========================================
                // 2. SOLUSI FIX SCROLLING: Blokir Paksa Menggunakan jQuery Native
                // ==========================================
                $('#allowance, #transport_dalkot, #transport_ankot, #hotel').on('wheel font-wheel', function(e) {
                    e.preventDefault(); 
                    $(this).blur(); // Melepas fokus kursor saat roda scroll digerakkan
                });


                // ==========================================
                // 3. LOGIKA MULTI UPLOAD ATTACHMENT 
                // ==========================================
                const attachmentCategories = @json($attachmentCategories ?? ($upCountryAttachmentCategoryKeys ?? []));
                const attachmentCategoryLabels = @json($attachmentCategoryLabels ?? ($upCountryAttachmentCategories ?? []));
                const fileAccept = '.jpg,.jpeg,.png,.pdf';
                let attachmentIndex = 0;
                let newAttachmentsTableBody = $('#new-attachments-table tbody');
                let existingAttachmentsTableBody = $('#existing-attachments-table tbody');
                let emptyNewRowMarkup = `<tr class="new-attachments-empty text-center text-muted"><td colspan="4">Belum ada lampiran baru.</td></tr>`;
                let emptyExistingRowMarkup = `<tr class="existing-attachments-empty text-center text-muted"><td colspan="5">Belum ada lampiran tersimpan.</td></tr>`;

                const csrfToken = $('meta[name="csrf-token"]').attr('content');
                if (csrfToken) {
                    $.ajaxSetup({
                        headers: {
                            'X-CSRF-TOKEN': csrfToken
                        }
                    });
                }

                function categoryToLabel(value) {
                    if (!value) return 'Pilih Kategori';
                    if (attachmentCategoryLabels && attachmentCategoryLabels[value]) {
                        return attachmentCategoryLabels[value];
                    }
                    return value.replace(/_/g, ' ').replace(/\b\w/g, (char) => char.toUpperCase());
                }

                function buildCategoryOptions() {
                    return attachmentCategories
                        .map((category) => `<option value="${category}">${categoryToLabel(category)}</option>`)
                        .join('');
                }

                function resetInlinePreview($row) {
                    $row.find('.attachment-inline-preview')
                        .removeClass('bg-light')
                        .html('<i class="fas fa-file-upload text-muted"></i>');
                }

                function clearRowData($row) {
                    const existingUrl = $row.data('objectUrl');
                    if (existingUrl) {
                        URL.revokeObjectURL(existingUrl);
                    }
                    $row.removeData('objectUrl');
                    $row.removeData('previewType');
                    $row.removeData('previewSource');
                    resetInlinePreview($row);
                    $row.find('.preview-new-attachment').addClass('d-none');
                    $row.find('.preview-filename').text('');
                }

                window.addAttachmentRow = function() {
                    if (!newAttachmentsTableBody) return;

                    if (newAttachmentsTableBody.find('.new-attachments-empty').length) {
                        newAttachmentsTableBody.empty();
                    }

                    const index = attachmentIndex++;
                    const row = $(`
                        <tr class="attachment-row" data-index="${index}">
                            <td>
                                <select class="form-control attachment-category" name="attachments[${index}][file_category]" required>
                                    <option value="">${categoryToLabel('')}</option>
                                    ${buildCategoryOptions()}
                                </select>
                            </td>
                            <td>
                                <div class="d-flex align-items-center gap-2">
                                    <div class="attachment-inline-preview border rounded d-flex align-items-center justify-content-center bg-white" style="width: 56px; height: 56px;">
                                        <i class="fas fa-file-upload text-muted"></i>
                                    </div>
                                    <input type="file" class="form-control attachment-file" name="attachments[${index}][file_path]" accept="${fileAccept}" required>
                                </div>
                                <div class="small text-muted mt-1 preview-filename"></div>
                            </td>
                            <td class="text-center">
                                <button type="button" class="btn btn-sm btn-outline-secondary preview-new-attachment d-none" data-modal="#newAttachmentPreviewModal">
                                    Pratinjau
                                </button>
                            </td>
                            <td class="text-center">
                                <button type="button" class="btn btn-sm btn-outline-danger remove-attachment-row">
                                    <i class="fas fa-trash"></i>
                                </button>
                            </td>
                        </tr>
                    `);
                    newAttachmentsTableBody.append(row);
                }

                function removeAttachmentRow(button) {
                    if (!newAttachmentsTableBody) return;

                    const $row = $(button).closest('tr');
                    clearRowData($row);
                    $row.remove();

                    if (!newAttachmentsTableBody.find('.attachment-row').length) {
                        newAttachmentsTableBody.html(emptyNewRowMarkup);
                    }
                }

                function setInlinePreview($row, type, source) {
                    const previewBox = $row.find('.attachment-inline-preview');

                    if (type === 'image' && source) {
                        previewBox
                            .html(`<img src="${source}" class="img-thumbnail" style="width: 100%; height: 100%; object-fit: cover;" alt="Pratinjau lampiran">`)
                            .addClass('bg-light');
                    } else if (type === 'pdf') {
                        previewBox
                            .html('<i class="fas fa-file-pdf text-danger fa-lg"></i>')
                            .addClass('bg-light');
                    } else {
                        resetInlinePreview($row);
                    }
                }

                function openAttachmentModal(modalSelector, title, type, source) {
                    const $modal = $(modalSelector);
                    const $image = $modal.find('.attachment-preview-image');
                    const $object = $modal.find('.attachment-preview-object');
                    const $placeholder = $modal.find('.attachment-preview-placeholder');

                    $modal.find('.attachment-preview-modal-title').text(title || 'Lampiran');
                    $image.addClass('d-none').attr('src', '');
                    $object.addClass('d-none').attr('data', '').attr('src', '');
                    $placeholder.removeClass('d-none');

                    if (type === 'image' && source) {
                        $image.attr('src', source).removeClass('d-none');
                        $placeholder.addClass('d-none');
                    } else if (type === 'pdf' && source) {
                        $object.attr('data', source).attr('src', source).removeClass('d-none');
                        $placeholder.addClass('d-none');
                    }

                    if (window.bootstrap && bootstrap.Modal && typeof bootstrap.Modal.getOrCreateInstance === 'function') {
                        bootstrap.Modal.getOrCreateInstance($modal[0]).show();
                    } else {
                        $modal.modal('show');
                    }
                }

                function previewFile(input) {
                    const $input = $(input);
                    const $row = $input.closest('tr');
                    const previewButton = $row.find('.preview-new-attachment');
                    const filenameHolder = $row.find('.preview-filename');

                    clearRowData($row);

                    const file = input.files && input.files[0];
                    if (!file) {
                        return;
                    }

                    filenameHolder.text(file.name);
                    const extension = file.name.split('.').pop().toLowerCase();

                    if (['jpg', 'jpeg', 'png'].includes(extension)) {
                        const reader = new FileReader();
                        reader.onload = function (event) {
                            const source = event.target.result;
                            $row.data('previewType', 'image');
                            $row.data('previewSource', source);
                            setInlinePreview($row, 'image', source);
                            previewButton.removeClass('d-none');
                        };
                        reader.readAsDataURL(file);
                    } else {
                        const objectUrl = URL.createObjectURL(file);
                        $row.data('previewType', 'pdf');
                        $row.data('previewSource', objectUrl);
                        $row.data('objectUrl', objectUrl);
                        setInlinePreview($row, 'pdf');
                        previewButton.removeClass('d-none');
                    }
                }

                // ==========================================
                // 4. INTERCEPTOR FORM SUBMIT & SWEETALERT (> 1 JUTA)
                // ==========================================
                const spinnerOverlay = $('#loading-spinner-overlay');

                $('#expense-form').on('submit', function (e) {
                    e.preventDefault();
                    const form = this;

                    const allowance = allowanceInput.getNumber() || 0;
                    const transportDalkot = dalkotInput.getNumber() || 0;
                    const transportAnkot = ankotInput.getNumber() || 0;
                    const hotel = hotelInput.getNumber() || 0;
                    
                    const totalExpense = allowance + transportDalkot + transportAnkot + hotel;

                    if (totalExpense > 1000000) {
                        Swal.fire({
                            title: 'Nominal Melebihi Batas Expense!',
                            text: `Total pengajuan Anda adalah Rp ${new Intl.NumberFormat('id-ID').format(totalExpense)}. Jumlah ini melebihi batas standar Rp 1.000.000. Apakah yakin tetap ajukan?`,
                            icon: 'warning',
                            showCancelButton: true,
                            confirmButtonColor: '#3085d6',
                            cancelButtonColor: '#d33',
                            confirmButtonText: 'Yes, Tetap Ajukan!',
                            cancelButtonText: 'No, Batalkan'
                        }).then((result) => {
                            if (result.isConfirmed) {
                                spinnerOverlay.removeClass('d-none').addClass('d-flex');
                                form.submit();
                            }
                        });
                    } else {
                        spinnerOverlay.removeClass('d-none').addClass('d-flex');
                        form.submit();
                    }
                });

                // Event Listeners DOM
                $('#add-new-attachment-row').on('click', function (e) {
                    e.preventDefault();
                    addAttachmentRow();
                });

                $(document).on('click', '.remove-attachment-row', function () {
                    removeAttachmentRow(this);
                });

                $(document).on('change', '.attachment-file', function () {
                    previewFile(this);
                });

                $(document).on('click', '.preview-new-attachment', function () {
                    const $row = $(this).closest('tr');
                    const previewType = $row.data('previewType');
                    const previewSource = $row.data('previewSource');
                    const category = categoryToLabel($row.find('.attachment-category').val());

                    openAttachmentModal('#newAttachmentPreviewModal', category, previewType, previewSource);
                });

                $(document).on('click', '.preview-existing-attachment', function () {
                    const button = $(this);
                    const previewType = button.data('preview-type');
                    const previewUrl = button.data('preview-url');
                    const downloadUrl = button.data('download-url');
                    const category = button.data('category') || 'Lampiran';

                    if (!previewUrl) {
                        if (downloadUrl) {
                            window.open(downloadUrl, '_blank');
                        }
                        return;
                    }

                    openAttachmentModal('#existingAttachmentPreviewModal', category, previewType, previewUrl);
                });

                $(document).on('click', '.delete-attachment', function () {
                    const button = $(this);
                    const deleteUrl = button.data('delete-url');
                    const $row = button.closest('tr');

                    Swal.fire({
                        title: 'Hapus lampiran?',
                        text: 'Lampiran yang dihapus tidak dapat dikembalikan.',
                        icon: 'warning',
                        showCancelButton: true,
                        confirmButtonText: 'Ya, hapus',
                        cancelButtonText: 'Batal'
                    }).then((result) => {
                        if (!result.isConfirmed) return;

                        $.ajax({
                            url: deleteUrl,
                            type: 'DELETE',
                            success: function (response) {
                                $row.remove();
                                if (!existingAttachmentsTableBody.find('tr').not('.existing-attachments-empty').length) {
                                    existingAttachmentsTableBody.html(emptyExistingRowMarkup);
                                }
                                Swal.fire('Berhasil', response?.message || 'Lampiran berhasil dihapus.', 'success');
                            },
                            error: function (xhr) {
                                const message = xhr?.responseJSON?.message || 'Gagal menghapus lampiran.';
                                Swal.fire('Error', message, 'error');
                            }
                        });
                    });
                });

            } catch (err) {
                console.error("Local Script Error:", err);
            }
        });
    </script>
@endsection