@extends('layouts.app')

@section('title', 'Pengaturan Jam Shift Kerja')

@section('page_header')
<div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center gap-2">
    <div>
        <h4 class="mb-0 fw-bold text-dark d-flex align-items-center gap-2">
            <i class="fa-solid fa-clock text-warning"></i> Pengaturan Jam Shift Kerja
        </h4>
        <small class="text-muted">Kelola jadwal shift jaga teknisi pemancar (Jam mulai dan jam berakhir shift)</small>
    </div>
    <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addShiftModal">
        <i class="fa-solid fa-plus me-1"></i> Tambah Shift Baru
    </button>
</div>
@endsection

@section('content')
<div class="row justify-content-center">
    <div class="col-lg-10">
        <div class="card card-engineering">
            <div class="card-header">
                <div>
                    <i class="fa-solid fa-business-time me-2 text-primary"></i>
                    <strong>Jadwal Jam Kerja Shift Teknisi Transmisi</strong>
                </div>
                <span class="badge bg-secondary font-mono">{{ $shifts->count() }} Shift Terdaftar</span>
            </div>
            <div class="card-body p-3">
                <!-- Bulk Action Floating Bar -->
                <div id="bulkActionBarShifts" class="alert alert-warning py-2 px-3 d-none align-items-center justify-content-between mb-3 border-warning shadow-sm">
                    <div class="d-flex align-items-center gap-2">
                        <i class="fa-solid fa-check-double text-warning-emphasis fs-5"></i>
                        <span class="text-dark small"><strong id="selectedShiftsCount">0</strong> shift terpilih untuk tindakan massal</span>
                    </div>
                    <button type="button" class="btn btn-danger btn-sm px-3 shadow-sm" id="btnExecuteBulkDeleteShifts">
                        <i class="fa-solid fa-trash-can me-1"></i> Hapus Massal Shift Terpilih
                    </button>
                </div>

                <div class="table-responsive">
                    <table class="table table-bordered table-hover align-middle mb-0 font-mono w-100" id="shiftsTable">
                        <thead class="table-light">
                            <tr>
                                <th style="width: 35px;" class="text-center">
                                    <input type="checkbox" id="selectAllShifts" class="form-check-input" title="Pilih Semua Shift di Halaman Ini">
                                </th>
                                <th style="width: 45px;" class="text-center">No</th>
                                <th>Nama Shift</th>
                                <th style="width: 90px;" class="text-center">Kode</th>
                                <th>Jam Operasional</th>
                                <th class="text-center" style="width: 100px;">Status</th>
                                <th>Keterangan</th>
                                <th class="text-center" style="width: 100px;">Aksi</th>
                            </tr>
                        </thead>
                        <tbody>
                            <!-- Dimuat dinamis via AJAX DataTables -->
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Modal Tambah Shift -->
<div class="modal fade" id="addShiftModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content border-0 shadow">
            <div class="modal-header bg-dark text-white">
                <h5 class="modal-title font-mono"><i class="fa-solid fa-clock text-warning me-2"></i> Tambah Jam Shift Baru</h5>
                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal"></button>
            </div>
            <form id="addShiftForm" action="{{ route('shifts.store') }}" method="POST">
                @csrf
                <div class="modal-body p-4">
                    <div class="mb-3">
                        <label class="form-label small fw-semibold text-secondary">NAMA SHIFT *</label>
                        <input type="text" name="name" class="form-control" placeholder="misal: Shift Pagi" required>
                    </div>

                    <div class="mb-3">
                        <label class="form-label small fw-semibold text-secondary">KODE SHIFT *</label>
                        <input type="text" name="code" class="form-control font-mono" placeholder="misal: PAGI" required>
                    </div>

                    <div class="row g-2 mb-3">
                        <div class="col-6">
                            <label class="form-label small fw-semibold text-secondary">JAM MULAI *</label>
                            <input type="time" name="start_time" class="form-control font-mono" required>
                        </div>
                        <div class="col-6">
                            <label class="form-label small fw-semibold text-secondary">JAM SELESAI *</label>
                            <input type="time" name="end_time" class="form-control font-mono" required>
                        </div>
                    </div>

                    <div class="mb-3">
                        <label class="form-label small fw-semibold text-secondary">KETERANGAN</label>
                        <textarea name="notes" rows="2" class="form-control" placeholder="Keterangan pengawasan operasional shift..."></textarea>
                    </div>

                    <div class="form-check form-switch">
                        <input class="form-check-input" type="checkbox" name="is_active" id="shiftActiveCheck" value="1" checked>
                        <label class="form-check-label small" for="shiftActiveCheck">Shift Aktif (Tampil di form logbook)</label>
                    </div>
                </div>
                <div class="modal-footer bg-light">
                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Batal</button>
                    <button type="submit" class="btn btn-primary px-4">Simpan Shift</button>
                </div>
            </form>
        </div>
    </div>
</div>

<!-- Modal Edit Shift -->
<div class="modal fade" id="editShiftModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content border-0 shadow">
            <div class="modal-header bg-primary text-white">
                <h5 class="modal-title font-mono"><i class="fa-solid fa-pen-to-square me-2"></i> Edit Jam Shift</h5>
                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal"></button>
            </div>
            <form id="editShiftForm" method="POST">
                @csrf
                @method('PUT')
                <div class="modal-body p-4">
                    <div class="mb-3">
                        <label class="form-label small fw-semibold text-secondary">NAMA SHIFT *</label>
                        <input type="text" name="name" id="edit_shift_name" class="form-control" required>
                    </div>

                    <div class="mb-3">
                        <label class="form-label small fw-semibold text-secondary">KODE SHIFT *</label>
                        <input type="text" name="code" id="edit_shift_code" class="form-control font-mono" required>
                    </div>

                    <div class="row g-2 mb-3">
                        <div class="col-6">
                            <label class="form-label small fw-semibold text-secondary">JAM MULAI *</label>
                            <input type="time" name="start_time" id="edit_shift_start" class="form-control font-mono" required>
                        </div>
                        <div class="col-6">
                            <label class="form-label small fw-semibold text-secondary">JAM SELESAI *</label>
                            <input type="time" name="end_time" id="edit_shift_end" class="form-control font-mono" required>
                        </div>
                    </div>

                    <div class="mb-3">
                        <label class="form-label small fw-semibold text-secondary">KETERANGAN</label>
                        <textarea name="notes" id="edit_shift_notes" rows="2" class="form-control"></textarea>
                    </div>

                    <div class="form-check form-switch">
                        <input class="form-check-input" type="checkbox" name="is_active" id="edit_shift_active" value="1">
                        <label class="form-check-label small" for="edit_shift_active">Shift Aktif</label>
                    </div>
                </div>
                <div class="modal-footer bg-light">
                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Batal</button>
                    <button type="submit" class="btn btn-primary px-4">Perbarui Shift</button>
                </div>
            </form>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
    $(document).ready(function() {
        // Inisialisasi AJAX DataTable
        const table = $('#shiftsTable').DataTable({
            processing: true,
            serverSide: true,
            responsive: true,
            order: [[3, 'asc']],
            language: {
                search: "Cari shift:",
                lengthMenu: "Tampilkan _MENU_ baris",
                info: "Menampilkan _START_ sampai _END_ dari _TOTAL_ entri",
                infoEmpty: "Menampilkan 0 entri",
                infoFiltered: "(disaring dari _MAX_ total entri)",
                zeroRecords: "Tidak ada data shift yang cocok",
                processing: "<i class='fa-solid fa-spinner fa-spin me-2'></i> Memuat data shift...",
                paginate: {
                    first: "Awal",
                    last: "Akhir",
                    next: "&raquo;",
                    previous: "&laquo;"
                }
            },
            ajax: {
                url: "{{ route('shifts.data') }}"
            },
            columns: [
                { data: 'checkbox', name: 'id', orderable: false, searchable: false, className: 'text-center' },
                { data: 'no', name: 'id', className: 'text-center', orderable: false, searchable: false },
                { data: 'name', name: 'name' },
                { data: 'code', name: 'code', className: 'text-center' },
                { data: 'operational_hours', name: 'start_time' },
                { data: 'status', name: 'is_active', className: 'text-center' },
                { data: 'notes', name: 'notes' },
                { data: 'actions', name: 'actions', orderable: false, searchable: false, className: 'text-center' }
            ]
        });

        // Update Bulk Action Bar visibility & counter
        function updateBulkActionBarShifts() {
            const count = $('.shift-row-checkbox:checked').length;
            $('#selectedShiftsCount').text(count);
            if (count > 0) {
                $('#bulkActionBarShifts').removeClass('d-none').addClass('d-flex');
            } else {
                $('#bulkActionBarShifts').addClass('d-none').removeClass('d-flex');
            }
        }

        // Checkbox: Select All in current page
        $('#selectAllShifts').on('change', function() {
            const isChecked = $(this).is(':checked');
            $('.shift-row-checkbox').prop('checked', isChecked);
            updateBulkActionBarShifts();
        });

        // Checkbox: Individual row change
        $(document).on('change', '.shift-row-checkbox', function() {
            const total = $('.shift-row-checkbox').length;
            const checked = $('.shift-row-checkbox:checked').length;
            $('#selectAllShifts').prop('checked', total > 0 && total === checked);
            updateBulkActionBarShifts();
        });

        // DataTable Draw event: reset select all checkbox
        table.on('draw', function() {
            $('#selectAllShifts').prop('checked', false);
            updateBulkActionBarShifts();
        });

        // Bulk Delete Action with SweetAlert2
        $('#btnExecuteBulkDeleteShifts').on('click', function() {
            const selectedIds = [];
            $('.shift-row-checkbox:checked').each(function() {
                selectedIds.push($(this).val());
            });

            if (selectedIds.length === 0) {
                Swal.fire('Perhatian', 'Silakan pilih minimal satu shift untuk dihapus.', 'info');
                return;
            }

            Swal.fire({
                title: 'Hapus Massal Jam Shift?',
                html: `Anda akan menghapus secara permanen <b>${selectedIds.length}</b> jadwal shift kerja terpilih.<br><small class="text-danger">Tindakan ini tidak dapat dibatalkan!</small>`,
                icon: 'warning',
                showCancelButton: true,
                confirmButtonColor: '#dc2626',
                cancelButtonColor: '#64748b',
                confirmButtonText: `<i class="fa-solid fa-trash-can me-1"></i> Ya, Hapus (${selectedIds.length}) Shift`,
                cancelButtonText: 'Batal',
                reverseButtons: true
            }).then((result) => {
                if (result.isConfirmed) {
                    Swal.fire({
                        title: 'Menghapus Data...',
                        text: 'Sedang memproses penghapusan massal...',
                        allowOutsideClick: false,
                        didOpen: () => {
                            Swal.showLoading();
                        }
                    });

                    $.ajax({
                        url: "{{ route('shifts.bulk-delete') }}",
                        type: 'POST',
                        data: {
                            _token: '{{ csrf_token() }}',
                            ids: selectedIds
                        },
                        success: function(res) {
                            Swal.fire({
                                icon: 'success',
                                title: 'Berhasil Dihapus',
                                text: res.message,
                                timer: 2500,
                                showConfirmButton: false,
                                toast: true,
                                position: 'top-end'
                            });
                            $('#selectAllShifts').prop('checked', false);
                            updateBulkActionBarShifts();
                            table.ajax.reload(null, false);
                        },
                        error: function(xhr) {
                            const msg = xhr.responseJSON?.message || 'Terjadi kesalahan saat menghapus data shift.';
                            Swal.fire('Gagal', msg, 'error');
                        }
                    });
                }
            });
        });

        // Form Tambah Shift via AJAX
        $('#addShiftForm').on('submit', function(e) {
            e.preventDefault();
            const form = $(this);
            $.ajax({
                url: form.attr('action'),
                type: 'POST',
                data: form.serialize(),
                success: function(resp) {
                    $('#addShiftModal').modal('hide');
                    form[0].reset();
                    Swal.fire({
                        icon: 'success',
                        title: 'Berhasil',
                        text: resp.message || 'Jadwal shift berhasil ditambahkan.',
                        timer: 2000,
                        showConfirmButton: false,
                        toast: true,
                        position: 'top-end'
                    });
                    table.ajax.reload(null, false);
                },
                error: function(xhr) {
                    const err = xhr.responseJSON?.message || 'Terjadi kesalahan saat menyimpan data.';
                    Swal.fire('Gagal', err, 'error');
                }
            });
        });

        // Form Edit Shift via AJAX
        $('#editShiftForm').on('submit', function(e) {
            e.preventDefault();
            const form = $(this);
            $.ajax({
                url: form.attr('action'),
                type: 'POST',
                data: form.serialize(),
                success: function(resp) {
                    $('#editShiftModal').modal('hide');
                    Swal.fire({
                        icon: 'success',
                        title: 'Berhasil',
                        text: resp.message || 'Pengaturan shift berhasil diperbarui.',
                        timer: 2000,
                        showConfirmButton: false,
                        toast: true,
                        position: 'top-end'
                    });
                    table.ajax.reload(null, false);
                },
                error: function(xhr) {
                    const err = xhr.responseJSON?.message || 'Terjadi kesalahan saat memperbarui data.';
                    Swal.fire('Gagal', err, 'error');
                }
            });
        });

        // Edit Modal Trigger
        $(document).on('click', '.btn-edit-shift', function() {
            const id = $(this).data('id');
            $('#editShiftForm').attr('action', `/shifts/${id}`);
            $('#edit_shift_name').val($(this).data('name'));
            $('#edit_shift_code').val($(this).data('code'));
            $('#edit_shift_start').val($(this).data('start'));
            $('#edit_shift_end').val($(this).data('end'));
            $('#edit_shift_notes').val($(this).data('notes'));
            $('#edit_shift_active').prop('checked', $(this).data('active') == 1);

            new bootstrap.Modal(document.getElementById('editShiftModal')).show();
        });

        // Delete with SweetAlert2 & AJAX
        $(document).on('click', '.btn-delete-shift', function() {
            const id = $(this).data('id');
            const name = $(this).data('name');

            Swal.fire({
                title: 'Hapus Shift Ini?',
                text: `Yakin ingin menghapus shift ${name}? Tindakan ini tidak dapat dibatalkan.`,
                icon: 'warning',
                showCancelButton: true,
                confirmButtonColor: '#dc2626',
                cancelButtonColor: '#64748b',
                confirmButtonText: '<i class="fa-solid fa-trash me-1"></i> Ya, Hapus',
                cancelButtonText: 'Batal'
            }).then((res) => {
                if (res.isConfirmed) {
                    $.ajax({
                        url: `/shifts/${id}`,
                        type: 'DELETE',
                        data: { _token: '{{ csrf_token() }}' },
                        success: function(resp) {
                            Swal.fire({
                                icon: 'success',
                                title: 'Terhapus',
                                text: resp.message,
                                timer: 2000,
                                showConfirmButton: false,
                                toast: true,
                                position: 'top-end'
                            });
                            table.ajax.reload(null, false);
                        },
                        error: function() {
                            Swal.fire('Gagal', 'Terjadi kesalahan saat menghapus shift.', 'error');
                        }
                    });
                }
            });
        });
    });
</script>
@endpush