$(document).ready(function() {
    var dtLang = (typeof app_locale !== 'undefined' && app_locale === 'fa') ? {
        search: 'جستجو:',
        lengthMenu: 'نمایش _MENU_ ردیف',
        info: 'نمایش _START_ تا _END_ از _TOTAL_ ردیف',
        infoEmpty: 'ردیفی یافت نشد',
        zeroRecords: 'ردیفی یافت نشد',
        paginate: { first: 'اول', last: 'آخر', next: 'بعدی', previous: 'قبلی' }
    } : {};

    var dtDefaults = {
        pageLength: 10,
        lengthMenu: [[10, 25, 50, -1], [10, 25, 50, 'همه']],
        order: [],
        language: dtLang,
        dom: 'lfrtip',
        deferRender: true,
        autoWidth: false
    };

    var tabTableMap = {
        '#entities_tab': '#holding_entities_table',
        '#units_tab': '#holding_units_table',
        '#relations_tab': '#holding_relations_table',
        '#assignments_tab': '#holding_assignments_table'
    };

    function destroyAllHoldingDataTables() {
        $.each(tabTableMap, function(tabHash, tableSelector) {
            var $table = $(tableSelector);
            if ($table.length && $.fn.DataTable.isDataTable($table[0])) {
                $table.DataTable().destroy();
            }
        });
    }

    function destroyOtherHoldingDataTables(activeTableSelector) {
        $.each(tabTableMap, function(tabHash, tableSelector) {
            if (tableSelector === activeTableSelector) {
                return;
            }

            var $table = $(tableSelector);
            if ($table.length && $.fn.DataTable.isDataTable($table[0])) {
                $table.DataTable().destroy();
            }
        });
    }

    function initHoldingDataTable(tableSelector) {
        if (!$.fn.DataTable) {
            return;
        }

        var $table = $(tableSelector);
        if (!$table.length) {
            return;
        }

        destroyOtherHoldingDataTables(tableSelector);

        if ($.fn.DataTable.isDataTable($table[0])) {
            $table.DataTable().columns.adjust().draw(false);
            return;
        }

        if ($table.find('tbody tr').not('.holding-table-empty').length === 0) {
            return;
        }

        $table.DataTable(dtDefaults);
    }

    var tabAdjustTimer = null;
    function scheduleTableInit(tabHash) {
        clearTimeout(tabAdjustTimer);
        tabAdjustTimer = setTimeout(function() {
            var tableSelector = tabTableMap[tabHash];
            if (!tableSelector) {
                destroyAllHoldingDataTables();
                return;
            }
            initHoldingDataTable(tableSelector);
        }, 50);
    }

    var hash = window.location.hash;
    if (hash && tabTableMap[hash]) {
        $('a[href="' + hash + '"]').tab('show');
        scheduleTableInit(hash);
    }

    $('a[data-toggle="tab"]').on('shown.bs.tab', function(e) {
        if (e.target.hash) {
            history.replaceState(null, '', e.target.hash);
            scheduleTableInit(e.target.hash);
        }
    });

    function destroyHoldingDatepickers($container) {
        $container.find('.holding-date-picker').each(function() {
            var $input = $(this);
            if ($input.data('persianDatepicker')) {
                try {
                    $input.persianDatepicker('destroy');
                } catch (e) {}
            }
            if ($input.data('datepicker')) {
                try {
                    $input.datepicker('destroy');
                } catch (e) {}
            }
        });
    }

    function syncHoldingDatepickerValues($container) {
        $container.find('.holding-date-picker').each(function() {
            var $input = $(this);
            $input.trigger('blur');

            if ($input.data('persianDatepicker')) {
                var pdInstance = $input.data('persianDatepicker');
                try {
                    if (pdInstance.getState && pdInstance.getState().selected) {
                        var selected = pdInstance.getState().selected;
                        var formatted = selected.year + '/' +
                            String(selected.month).padStart(2, '0') + '/' +
                            String(selected.day).padStart(2, '0');
                        $input.val(formatted);
                    } else if (pdInstance.getSelectedDate) {
                        var date = pdInstance.getSelectedDate();
                        if (date) {
                            $input.val(date.year + '/' +
                                String(date.month).padStart(2, '0') + '/' +
                                String(date.day).padStart(2, '0'));
                        }
                    }
                } catch (e) {}
            }

            if (!$.trim($input.val())) {
                $input.val('');
            }
        });
    }

    function initHoldingDatepickers($container) {
        destroyHoldingDatepickers($container);

        var $inputs = $container.find('.holding-date-picker');
        if (!$inputs.length) {
            return;
        }

        var pickerOptions = {
            autoClose: true,
            initialValue: true,
            observer: true,
            timePicker: { enabled: false }
        };

        if (typeof initPersianDatepicker === 'function') {
            initPersianDatepicker($inputs, pickerOptions);
        } else if (typeof is_persian_lang !== 'undefined' && is_persian_lang && typeof $.fn.persianDatepicker !== 'undefined') {
            $inputs.persianDatepicker($.extend({
                calendarType: 'persian',
                format: typeof datepicker_date_format !== 'undefined' ? datepicker_date_format : 'YYYY/MM/DD'
            }, pickerOptions));
        } else {
            $inputs.datepicker({
                autoclose: true,
                format: typeof datepicker_date_format !== 'undefined' ? datepicker_date_format : 'yyyy/mm/dd',
                container: $container.closest('.modal'),
                todayHighlight: true
            });
        }

        $('.datepicker-container').css('z-index', 2000);
    }

    var holdingModalSelector = '.holding_entity_modal, .holding_unit_modal, .holding_relation_modal, .holding_assignment_modal';

    $(document).on('shown.bs.modal', holdingModalSelector, function() {
        var $modal = $(this);
        __select2($modal.find('.select2'));
        setTimeout(function() {
            initHoldingDatepickers($modal);
        }, 100);
    });

    $(document).on('hidden.bs.modal', holdingModalSelector, function() {
        destroyHoldingDatepickers($(this));
    });

    function applyUserHrmDefaults($modal) {
        var userId = $modal.find('.holding-assignment-user').val();
        var map = window.HOLDING_USER_HRM || {};
        if (!userId || !map[userId]) {
            return;
        }
        var hrm = map[userId];
        if (hrm.org_unit_id) {
            $modal.find('.holding-assignment-org-unit').val(hrm.org_unit_id).trigger('change');
        }
        if (hrm.designation_id) {
            $modal.find('.holding-assignment-designation').val(hrm.designation_id).trigger('change');
            $modal.find('.holding-assignment-title-custom').val('');
        }
    }

    $(document).on('change', '.holding-assignment-user', function() {
        applyUserHrmDefaults($(this).closest('.modal'));
    });

    $(document).on('change', '.holding-assignment-designation', function() {
        var $modal = $(this).closest('.modal');
        if ($(this).val()) {
            $modal.find('.holding-assignment-title-custom').val('');
        }
    });

    function submitHoldingForm(formSelector, modalSelector) {
        $(document).on('submit', formSelector, function(e) {
            e.preventDefault();
            var $form = $(this);
            var $submitBtn = $form.find('button[type="submit"]');
            syncHoldingDatepickerValues($form);

            $.ajax({
                method: 'POST',
                url: $form.attr('action'),
                data: $form.serialize(),
                dataType: 'json',
                headers: { 'X-Requested-With': 'XMLHttpRequest', 'Accept': 'application/json' },
                success: function(result) {
                    if (result.success) {
                        $(modalSelector).modal('hide');
                        toastr.success(result.msg);
                        setTimeout(function() {
                            window.location.hash = result.tab ? '#' + result.tab : '';
                            window.location.reload();
                        }, 600);
                    } else {
                        toastr.error(result.msg);
                        $submitBtn.prop('disabled', false);
                    }
                },
                error: function(xhr) {
                    var msg = LANG.something_went_wrong;
                    if (xhr.responseJSON) {
                        if (xhr.responseJSON.msg) {
                            msg = xhr.responseJSON.msg;
                        } else if (xhr.responseJSON.errors) {
                            msg = $.map(xhr.responseJSON.errors, function(v) {
                                return v[0];
                            }).join('<br>');
                        } else if (xhr.responseJSON.message) {
                            msg = xhr.responseJSON.message;
                        }
                    }
                    toastr.error(msg);
                    $submitBtn.prop('disabled', false);
                }
            });
        });
    }

    submitHoldingForm('#holding_entity_form', '.holding_entity_modal');
    submitHoldingForm('#holding_unit_form', '.holding_unit_modal');
    submitHoldingForm('#holding_relation_form', '.holding_relation_modal');
    submitHoldingForm('#holding_assignment_form', '.holding_assignment_modal');

    function syncHrm() {
        if (!HOLDING_LANG.sync_hrm_url) return;
        $.ajax({
            method: 'POST',
            url: HOLDING_LANG.sync_hrm_url,
            dataType: 'json',
            headers: { 'X-Requested-With': 'XMLHttpRequest', 'Accept': 'application/json', 'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content') },
            success: function(result) {
                if (result.success) {
                    toastr.success(result.msg);
                    window.location.hash = '#assignments_tab';
                    window.location.reload();
                } else {
                    toastr.error(result.msg);
                }
            }
        });
    }

    $('#holding_sync_hrm_form').on('submit', function(e) { e.preventDefault(); syncHrm(); });
    $('#holding_sync_hrm_btn').on('click', function() { syncHrm(); });

    $(document).on('click', '.holding-delete', function() {
        var url = $(this).data('href');
        var tab = $(this).data('tab') || '';
        swal({
            title: LANG.sure,
            text: typeof HOLDING_LANG !== 'undefined' ? HOLDING_LANG.confirm_delete : LANG.sure,
            icon: 'warning',
            buttons: true,
            dangerMode: true
        }).then(function(willDelete) {
            if (!willDelete) return;
            $.ajax({
                method: 'DELETE',
                url: url,
                dataType: 'json',
                headers: { 'X-Requested-With': 'XMLHttpRequest', 'Accept': 'application/json' },
                success: function(result) {
                    if (result.success) {
                        toastr.success(result.msg);
                        window.location.hash = tab ? '#' + tab : '';
                        window.location.reload();
                    } else {
                        toastr.error(result.msg);
                    }
                }
            });
        });
    });
});