$(document).ready(function() {
    $('body a, body button').attr('tabindex', -1);
    check_add_item_val();
    if (site.settings.set_focus != 1) {
        $('#add_item').focus();
    }
    // Order level shipping and discoutn localStorage
    if ((qudiscount = localStorage.getItem('qudiscount'))) {
        $('#qudiscount').val(qudiscount);
    }
    $('#qutax2').change(function(e) {
        localStorage.setItem('qutax2', $(this).val());
        $('#qutax2').val($(this).val());
    });
    if ((qutax2 = localStorage.getItem('qutax2'))) {
        $('#qutax2').select2('val', qutax2);
    }
    $('#qustatus').change(function(e) {
        localStorage.setItem('qustatus', $(this).val());
    });
    if ((qustatus = localStorage.getItem('qustatus'))) {
        $('#qustatus').select2('val', qustatus);
    }
    var old_shipping;
    $('#qushipping')
        .focus(function() {
            old_shipping = $(this).val();
        })
        .change(function() {
            if (!is_numeric($(this).val())) {
                $(this).val(old_shipping);
                bootbox.alert(lang.unexpected_value);
                return;
            } else {
                shipping = $(this).val() ? parseFloat($(this).val()) : '0';
            }
            localStorage.setItem('qushipping', shipping);
            var gtotal = total + invoice_tax - order_discount + shipping;
            $('#gtotal').text(formatMoney(gtotal));
            $('#tship').text(formatMoney(shipping));
        });
    if ((qushipping = localStorage.getItem('qushipping'))) {
        shipping = parseFloat(qushipping);
        $('#qushipping').val(shipping);
    } else {
        shipping = 0;
    }

    $('#qusupplier').change(function(e) {
        localStorage.setItem('qusupplier', $(this).val());
        $('#supplier_id').val($(this).val());
    });
    if ((qusupplier = localStorage.getItem('qusupplier'))) {
        $('#qusupplier')
            .val(qusupplier)
            .select2({
                minimumInputLength: 1,
                data: [],
                initSelection: function(element, callback) {
                    $.ajax({
                        type: 'get',
                        async: false,
                        url: site.base_url + 'suppliers/getSupplier/' + $(element).val(),
                        dataType: 'json',
                        success: function(data) {
                            callback(data[0]);
                        },
                    });
                },
                ajax: {
                    url: site.base_url + 'suppliers/suggestions',
                    dataType: 'json',
                    quietMillis: 15,
                    data: function(term, page) {
                        return {
                            term: term,
                            limit: 10,
                        };
                    },
                    results: function(data, page) {
                        if (data.results != null) {
                            return { results: data.results };
                        } else {
                            return { results: [{ id: '', text: 'No Match Found' }] };
                        }
                    },
                },
            });
    } else {
        nsSupplier();
    }

    // If there is any item in localStorage
    if (localStorage.getItem('quitems')) {
        loadItems();
    }

    // clear localStorage and reload
    $('#reset').click(function(e) {
        bootbox.confirm(lang.r_u_sure, function(result) {
            if (result) {
                if (localStorage.getItem('quitems')) {
                    localStorage.removeItem('quitems');
                }
                if (localStorage.getItem('qudiscount')) {
                    localStorage.removeItem('qudiscount');
                }
                if (localStorage.getItem('qutax2')) {
                    localStorage.removeItem('qutax2');
                }
                if (localStorage.getItem('qushipping')) {
                    localStorage.removeItem('qushipping');
                }
                if (localStorage.getItem('quref')) {
                    localStorage.removeItem('quref');
                }
                if (localStorage.getItem('quwarehouse')) {
                    localStorage.removeItem('quwarehouse');
                }
                if (localStorage.getItem('qunote')) {
                    localStorage.removeItem('qunote');
                }
                if (localStorage.getItem('quinnote')) {
                    localStorage.removeItem('quinnote');
                }
                if (localStorage.getItem('qucustomer')) {
                    localStorage.removeItem('qucustomer');
                }
                if (localStorage.getItem('qucurrency')) {
                    localStorage.removeItem('qucurrency');
                }
                if (localStorage.getItem('qudate')) {
                    localStorage.removeItem('qudate');
                }
                if (localStorage.getItem('qustatus')) {
                    localStorage.removeItem('qustatus');
                }
                if (localStorage.getItem('qubiller')) {
                    localStorage.removeItem('qubiller');
                }

                $('#modal-loading').show();
                location.reload();
            }
        });
    });

    // save and load the fields in and/or from localStorage

    $('#quref').change(function(e) {
        localStorage.setItem('quref', $(this).val());
    });
    if ((quref = localStorage.getItem('quref'))) {
        $('#quref').val(quref);
    }
    $('#quwarehouse').change(function(e) {
        localStorage.setItem('quwarehouse', $(this).val());
    });
    if ((quwarehouse = localStorage.getItem('quwarehouse'))) {
        $('#quwarehouse').select2('val', quwarehouse);
    }

    $('#qunote').redactor('destroy');
    $('#qunote').redactor({
        buttons: [
            'formatting',
            '|',
            'alignleft',
            'aligncenter',
            'alignright',
            'justify',
            '|',
            'bold',
            'italic',
            'underline',
            '|',
            'unorderedlist',
            'orderedlist',
            '|',
            'link',
            '|',
            'html',
        ],
        formattingTags: ['p', 'pre', 'h3', 'h4'],
        minHeight: 100,
        changeCallback: function(e) {
            var v = this.get();
            localStorage.setItem('qunote', v);
        },
    });
    if ((qunote = localStorage.getItem('qunote'))) {
        $('#qunote').redactor('set', qunote);
    }
    var $customer = $('#qucustomer');
    $customer.change(function(e) {
        localStorage.setItem('qucustomer', $(this).val());
    });
    if ((qucustomer = localStorage.getItem('qucustomer'))) {
        $customer.val(qucustomer).select2({
            minimumInputLength: 1,
            data: [],
            initSelection: function(element, callback) {
                $.ajax({
                    type: 'get',
                    async: false,
                    url: site.base_url + 'customers/getCustomer/' + $(element).val(),
                    dataType: 'json',
                    success: function(data) {
                        callback(data[0]);
                    },
                });
            },
            ajax: {
                url: site.base_url + 'customers/suggestions',
                dataType: 'json',
                quietMillis: 15,
                data: function(term, page) {
                    return {
                        term: term,
                        limit: 10,
                    };
                },
                results: function(data, page) {
                    if (data.results != null) {
                        return { results: data.results };
                    } else {
                        return { results: [{ id: '', text: 'No Match Found' }] };
                    }
                },
            },
        });
    } else {
        nsCustomer();
    }

    // prevent default action upon enter
    $('body').bind('keypress', function(e) {
        if ($(e.target).hasClass('redactor_editor')) {
            return true;
        }
        if (e.keyCode == 13) {
            e.preventDefault();
            return false;
        }
    });

    // Order tax calculation
    if (site.settings.tax2 != 0) {
        $('#qutax2').change(function() {
            localStorage.setItem('qutax2', $(this).val());
            loadItems();
            return;
        });
    }

    // Order discount calculation
    var old_qudiscount;
    $('#qudiscount')
        .focus(function() {
            old_qudiscount = $(this).val();
        })
        .change(function() {
            var new_discount = $(this).val() ? $(this).val() : '0';
            if (is_valid_discount(new_discount)) {
                localStorage.removeItem('qudiscount');
                localStorage.setItem('qudiscount', new_discount);
                loadItems();
                return;
            } else {
                $(this).val(old_qudiscount);
                bootbox.alert(lang.unexpected_value);
                return;
            }
        });

    /* ----------------------
     * Delete Row Method
     * ---------------------- */
    $(document).on('click', '.qudel', function() {
        var row = $(this).closest('tr');
        var item_id = row.attr('data-item-id');
        delete quitems[item_id];
        row.remove();
        if (quitems.hasOwnProperty(item_id)) {
        } else {
            localStorage.setItem('quitems', JSON.stringify(quitems));
            loadItems();
            return;
        }
    });

    /* -----------------------
     * Edit Row Modal Hanlder
     ----------------------- */
    $(document).on('click', '.edit', function() {
        var row = $(this).closest('tr');
        var row_id = row.attr('id');
        item_id = row.attr('data-item-id');
        item = quitems[item_id];
        var qty = row
                .children()
                .children('.rquantity')
                .val(),
            product_option = row
                .children()
                .children('.roption')
                .val(),
            unit_price = formatDecimal(
                row
                    .children()
                    .children('.ruprice')
                    .val()
            ),
            discount = row
                .children()
                .children('.rdiscount')
                .val();
        if (item.options !== false) {
            $.each(item.options, function() {
                if (this.id == item.row.option && this.price != 0 && this.price != '' && this.price != null) {
                    unit_price = parseFloat(item.row.real_unit_price) + parseFloat(this.price);
                }
            });
        }
        var real_unit_price = item.row.real_unit_price;
        var net_price = unit_price;
        $('#prModalLabel').text(item.row.name + ' (' + item.row.code + ')');
        if (site.settings.tax1) {
            $('#ptax').select2('val', item.row.tax_rate);
            $('#old_tax').val(item.row.tax_rate);
            var item_discount = 0,
                ds = discount ? discount : '0';
            if (ds.indexOf('%') !== -1) {
                var pds = ds.split('%');
                if (!isNaN(pds[0])) {
                    item_discount = formatDecimal(parseFloat((unit_price * parseFloat(pds[0])) / 100), 4);
                } else {
                    item_discount = parseFloat(ds);
                }
            } else {
                item_discount = parseFloat(ds);
            }
            net_price -= item_discount;
            var pr_tax = item.row.tax_rate,
                pr_tax_val = 0;
            if (pr_tax !== null && pr_tax != 0) {
                $.each(tax_rates, function() {
                    if (this.id == pr_tax) {
                        if (this.type == 1) {
                            if (quitems[item_id].row.tax_method == 0) {
                                pr_tax_val = formatDecimal((net_price * parseFloat(this.rate)) / (100 + parseFloat(this.rate)), 4);
                                pr_tax_rate = formatDecimal(this.rate) + '%';
                                net_price -= pr_tax_val;
                            } else {
                                pr_tax_val = formatDecimal((net_price * parseFloat(this.rate)) / 100, 4);
                                pr_tax_rate = formatDecimal(this.rate) + '%';
                            }
                        } else if (this.type == 2) {
                            pr_tax_val = parseFloat(this.rate);
                            pr_tax_rate = this.rate;
                        }
                    }
                });
            }
        }
        if (site.settings.product_serial !== 0) {
            $('#pserial').val(
                row
                    .children()
                    .children('.rserial')
                    .val()
            );
        }
        var opt = '<p style="margin: 12px 0 0 0;">n/a</p>';
        if (item.options !== false) {
            var o = 1;
            opt = $('<select id="poption" name="poption" class="form-control select" />');
            $.each(item.options, function() {
                if (o == 1) {
                    if (product_option == '') {
                        product_variant = this.id;
                    } else {
                        product_variant = product_option;
                    }
                }
                $('<option />', { value: this.id, text: this.name }).appendTo(opt);
                o++;
            });
        } else {
            product_variant = 0;
        }

        uopt = '<p style="margin: 12px 0 0 0;">n/a</p>';
        if (item.units) {
            uopt = $('<select id="punit" name="punit" class="form-control select" />');
            $.each(item.units, function() {
                if (this.id == item.row.unit) {
                    $('<option />', { value: this.id, text: this.name, selected: true }).appendTo(uopt);
                } else {
                    $('<option />', { value: this.id, text: this.name }).appendTo(uopt);
                }
            });
        }

        $('#poptions-div').html(opt);
        $('#punits-div').html(uopt);
        $('select.select').select2({ minimumResultsForSearch: 7 });
        $('#pquantity').val(qty);
        $('#old_qty').val(qty);
        $('#pprice').val(unit_price);
        $('#punit_price').val(formatDecimal(parseFloat(unit_price) + parseFloat(pr_tax_val)));
        $('#poption').select2('val', item.row.option);
        $('#old_price').val(unit_price);
        $('#row_id').val(row_id);
        $('#item_id').val(item_id);
        $('#pserial').val(
            row
                .children()
                .children('.rserial')
                .val()
        );
        $('#pdiscount').val(discount);
        $('#net_price').text(formatMoney(net_price - item_discount));
        $('#pro_tax').text(formatMoney(pr_tax_val));
        $('#prModal')
            .appendTo('body')
            .modal('show');
    });

    $('#prModal').on('shown.bs.modal', function(e) {
        if ($('#poption').select2('val') != '') {
            $('#poption').select2('val', product_variant);
            product_variant = 0;
        }
    });

    $(document).on('change', '#pprice, #ptax, #pdiscount', function() {
        var row = $('#' + $('#row_id').val());
        var item_id = row.attr('data-item-id');
        var unit_price = parseFloat($('#pprice').val());
        var item = quitems[item_id];
        var ds = $('#pdiscount').val() ? $('#pdiscount').val() : '0';
        if (ds.indexOf('%') !== -1) {
            var pds = ds.split('%');
            if (!isNaN(pds[0])) {
                item_discount = parseFloat((unit_price * parseFloat(pds[0])) / 100);
            } else {
                item_discount = parseFloat(ds);
            }
        } else {
            item_discount = parseFloat(ds);
        }
        unit_price -= item_discount;
        var pr_tax = $('#ptax').val(),
            item_tax_method = item.row.tax_method;
        var pr_tax_val = 0,
            pr_tax_rate = 0;
        if (pr_tax !== null && pr_tax != 0) {
            $.each(tax_rates, function() {
                if (this.id == pr_tax) {
                    if (this.type == 1) {
                        if (item_tax_method == 0) {
                            pr_tax_val = formatDecimal((unit_price * parseFloat(this.rate)) / (100 + parseFloat(this.rate)), 4);
                            pr_tax_rate = formatDecimal(this.rate) + '%';
                            unit_price -= pr_tax_val;
                        } else {
                            pr_tax_val = formatDecimal((unit_price * parseFloat(this.rate)) / 100, 4);
                            pr_tax_rate = formatDecimal(this.rate) + '%';
                        }
                    } else if (this.type == 2) {
                        pr_tax_val = parseFloat(this.rate);
                        pr_tax_rate = this.rate;
                    }
                }
            });
        }

        $('#net_price').text(formatMoney(unit_price));
        $('#pro_tax').text(formatMoney(pr_tax_val));
    });

    $(document).on('change', '#punit', function() {
        var row = $('#' + $('#row_id').val());
        var item_id = row.attr('data-item-id');
        var item = quitems[item_id];
        if (!is_numeric($('#pquantity').val()) || parseFloat($('#pquantity').val()) < 0) {
            $(this).val(old_row_qty);
            bootbox.alert(lang.unexpected_value);
            return;
        }
        var opt = $('#poption').val(),
            unit = $('#punit').val(),
            base_quantity = $('#pquantity').val(),
            aprice = 0;
        if (item.options !== false) {
            $.each(item.options, function() {
                if (this.id == opt && this.price != 0 && this.price != '' && this.price != null) {
                    aprice = parseFloat(this.price);
                }
            });
        }
        if (item.units && unit != quitems[item_id].row.base_unit) {
            $.each(item.units, function() {
                if (this.id == unit) {
                    base_quantity = unitToBaseQty($('#pquantity').val(), this);
                    $('#pprice')
                        .val(formatDecimal(parseFloat(item.row.base_unit_price + aprice) * unitToBaseQty(1, this), 4))
                        .change();
                }
            });
        } else {
            $('#pprice')
                .val(formatDecimal(item.row.base_unit_price + aprice))
                .change();
        }
    });

    /* -----------------------
     * Edit Row Method
     ----------------------- */
    $(document).on('click', '#editItem', function() {
        var row = $('#' + $('#row_id').val());
        var item_id = row.attr('data-item-id'),
            new_pr_tax = $('#ptax').val(),
            new_pr_tax_rate = false;
        if (new_pr_tax) {
            $.each(tax_rates, function() {
                if (this.id == new_pr_tax) {
                    new_pr_tax_rate = this;
                }
            });
        }
        var price = parseFloat($('#pprice').val());
        if (item.options !== false) {
            var opt = $('#poption').val();
            $.each(item.options, function() {
                if (this.id == opt && this.price != 0 && this.price != '' && this.price != null) {
                    price = price - parseFloat(this.price);
                }
            });
        }
        if (site.settings.product_discount == 1 && $('#pdiscount').val()) {
            if (!is_valid_discount($('#pdiscount').val()) || $('#pdiscount').val() > price) {
                bootbox.alert(lang.unexpected_value);
                return false;
            }
        }
        if (!is_numeric($('#pquantity').val()) || parseFloat($('#pquantity').val()) < 0) {
            $(this).val(old_row_qty);
            bootbox.alert(lang.unexpected_value);
            return;
        }
        var unit = $('#punit').val();
        var base_quantity = parseFloat($('#pquantity').val());
        if (unit != quitems[item_id].row.base_unit) {
            $.each(quitems[item_id].units, function() {
                if (this.id == unit) {
                    base_quantity = unitToBaseQty($('#pquantity').val(), this);
                }
            });
        }

        (quitems[item_id].row.fup = 1),
            (quitems[item_id].row.qty = parseFloat($('#pquantity').val())),
            (quitems[item_id].row.base_quantity = parseFloat(base_quantity)),
            (quitems[item_id].row.real_unit_price = price),
            (quitems[item_id].row.unit = unit),
            (quitems[item_id].row.tax_rate = new_pr_tax),
            (quitems[item_id].tax_rate = new_pr_tax_rate),
            (quitems[item_id].row.discount = $('#pdiscount').val() ? $('#pdiscount').val() : ''),
            (quitems[item_id].row.option = $('#poption').val() ? $('#poption').val() : ''),
            (quitems[item_id].row.serial = $('#pserial').val());
        localStorage.setItem('quitems', JSON.stringify(quitems));
        $('#prModal').modal('hide');

        loadItems();
        return;
    });

    /* -----------------------
     * Product option change
     ----------------------- */
    $(document).on('change', '#poption', function() {
        var row = $('#' + $('#row_id').val()),
            opt = $(this).val();
        var item_id = row.attr('data-item-id');
        var item = quitems[item_id];
        var unit = $('#punit').val(),
            base_quantity = parseFloat($('#pquantity').val()),
            base_unit_price = item.row.base_unit_price;
        if (unit != quitems[item_id].row.base_unit) {
            $.each(quitems[item_id].units, function() {
                if (this.id == unit) {
                    base_unit_price = formatDecimal(parseFloat(item.row.base_unit_price) * unitToBaseQty(1, this), 4);
                    base_quantity = unitToBaseQty($('#pquantity').val(), this);
                }
            });
        }
        if (item.options !== false) {
            $.each(item.options, function() {
                if (this.id == opt && this.price != 0 && this.price != '' && this.price != null) {
                    $('#pprice')
                        .val(parseFloat(base_unit_price) + parseFloat(this.price) * parseFloat(base_quantity))
                        .trigger('change');
                }
            });
        }
    });

    /* ------------------------------
     * Show manual item addition modal
     ------------------------------- */
    $(document).on('click', '#addManually', function(e) {
        if (count == 1) {
            quitems = {};
            if ($('#quwarehouse').val() && $('#qucustomer').val()) {
                $('#qucustomer').select2('readonly', true);
                $('#quwarehouse').select2('readonly', true);
            } else {
                bootbox.alert(lang.select_above);
                item = null;
                return false;
            }
        }
        $('#mnet_price').text('0.00');
        $('#mpro_tax').text('0.00');
        $('#mModal')
            .appendTo('body')
            .modal('show');
        return false;
    });

    $(document).on('click', '#addItemManually', function(e) {
        var mid = new Date().getTime(),
            mcode = $('#mcode').val(),
            mname = $('#mname').val(),
            mtax = parseInt($('#mtax').val()),
            munit = parseInt($('#munit').val()),
            mqty = parseFloat($('#mquantity').val()),
            mdiscount = $('#mdiscount').val() ? $('#mdiscount').val() : '0',
            unit_price = parseFloat($('#mprice').val()),
            mtax_rate = {};
        if (mcode && mname && mqty && unit_price) {
            $.each(tax_rates, function() {
                if (this.id == mtax) {
                    mtax_rate = this;
                }
            });

            quitems[mid] = {
                id: mid,
                item_id: mid,
                label: mname + ' (' + mcode + ')',
                row: {
                    id: mid,
                    code: mcode,
                    name: mname,
                    quantity: mqty,
                    price: unit_price,
                    unit_price: unit_price,
                    real_unit_price: unit_price,
                    tax_rate: mtax,
                    unit: munit,
                    tax_method: 0,
                    qty: mqty,
                    type: 'manual',
                    discount: mdiscount,
                    serial: '',
                    option: '',
                },
                tax_rate: mtax_rate,
                options: false,
            };
            localStorage.setItem('quitems', JSON.stringify(quitems));
            loadItems();
        }
        $('#mModal').modal('hide');
        $('#mcode').val('');
        $('#mname').val('');
        $('#mtax').val('');
        $('#munit').val('');
        $('#mquantity').val('');
        $('#mdiscount').val('');
        $('#mprice').val('');
        return false;
    });

    $(document).on('change', '#mprice, #mtax, #mdiscount', function() {
        var unit_price = parseFloat($('#mprice').val());
        var ds = $('#mdiscount').val() ? $('#mdiscount').val() : '0';
        if (ds.indexOf('%') !== -1) {
            var pds = ds.split('%');
            if (!isNaN(pds[0])) {
                item_discount = parseFloat((unit_price * parseFloat(pds[0])) / 100);
            } else {
                item_discount = parseFloat(ds);
            }
        } else {
            item_discount = parseFloat(ds);
        }
        unit_price -= item_discount;
        var pr_tax = $('#mtax').val(),
            item_tax_method = 0;
        var pr_tax_val = 0,
            pr_tax_rate = 0;
        if (pr_tax !== null && pr_tax != 0) {
            $.each(tax_rates, function() {
                if (this.id == pr_tax) {
                    if (this.type == 1) {
                        if (item_tax_method == 0) {
                            pr_tax_val = formatDecimal((unit_price * parseFloat(this.rate)) / (100 + parseFloat(this.rate)));
                            pr_tax_rate = formatDecimal(this.rate) + '%';
                            unit_price -= pr_tax_val;
                        } else {
                            pr_tax_val = formatDecimal((unit_price * parseFloat(this.rate)) / 100);
                            pr_tax_rate = formatDecimal(this.rate) + '%';
                        }
                    } else if (this.type == 2) {
                        pr_tax_val = parseFloat(this.rate);
                        pr_tax_rate = this.rate;
                    }
                }
            });
        }

        $('#mnet_price').text(formatMoney(unit_price));
        $('#mpro_tax').text(formatMoney(pr_tax_val));
    });

    /* --------------------------
     * Edit Row Quantity Method
     -------------------------- */
    var old_row_qty;
    $(document)
        .on('focus', '.rquantity', function() {
            old_row_qty = $(this).val();
        })
        .on('change', '.rquantity', function() {
            var row = $(this).closest('tr');
            if (!is_numeric($(this).val()) || parseFloat($(this).val()) < 0) {
                $(this).val(old_row_qty);
                bootbox.alert(lang.unexpected_value);
                return;
            }
            var new_qty = parseFloat($(this).val()),
                item_id = row.attr('data-item-id');
            quitems[item_id].row.base_quantity = new_qty;
            if (quitems[item_id].row.unit != quitems[item_id].row.base_unit) {
                $.each(quitems[item_id].units, function() {
                    if (this.id == quitems[item_id].row.unit) {
                        quitems[item_id].row.base_quantity = unitToBaseQty(new_qty, this);
                    }
                });
            }
            quitems[item_id].row.qty = new_qty;
            localStorage.setItem('quitems', JSON.stringify(quitems));
            loadItems();
        });

    /* --------------------------
     * Edit Row Price Method
     -------------------------- */
    var old_price;
    $(document)
        .on('focus', '.rprice', function() {
            old_price = $(this).val();
        })
        .on('change', '.rprice', function() {
            var row = $(this).closest('tr');
            if (!is_numeric($(this).val())) {
                $(this).val(old_price);
                bootbox.alert(lang.unexpected_value);
                return;
            }
            var new_price = parseFloat($(this).val()),
                item_id = row.attr('data-item-id');
            quitems[item_id].row.price = new_price;
            localStorage.setItem('quitems', JSON.stringify(quitems));
            loadItems();
        });

    $(document).on('click', '#removeReadonly', function() {
        $('#qucustomer').select2('readonly', false);
        //$('#quwarehouse').select2('readonly', false);
        return false;
    });
});
/* -----------------------
 * Misc Actions
 ----------------------- */

// hellper function for customer if no localStorage value
function nsCustomer() {
    $('#qucustomer').select2({
        minimumInputLength: 1,
        ajax: {
            url: site.base_url + 'customers/suggestions',
            dataType: 'json',
            quietMillis: 15,
            data: function(term, page) {
                return {
                    term: term,
                    limit: 10,
                };
            },
            results: function(data, page) {
                if (data.results != null) {
                    return { results: data.results };
                } else {
                    return { results: [{ id: '', text: 'No Match Found' }] };
                }
            },
        },
    });
}

function nsSupplier() {
    $('#qusupplier').select2({
        minimumInputLength: 1,
        ajax: {
            url: site.base_url + 'suppliers/suggestions',
            dataType: 'json',
            quietMillis: 15,
            data: function(term, page) {
                return {
                    term: term,
                    limit: 10,
                };
            },
            results: function(data, page) {
                if (data.results != null) {
                    return { results: data.results };
                } else {
                    return { results: [{ id: '', text: 'No Match Found' }] };
                }
            },
        },
    });
}

//localStorage.clear();
function loadItems() {
    if (localStorage.getItem('quitems')) {
        total = 0;
        count = 1;
        an = 1;
        product_tax = 0;
        invoice_tax = 0;
        product_discount = 0;
        order_discount = 0;
        total_discount = 0;

        $('#quTable tbody').empty();
        quitems = JSON.parse(localStorage.getItem('quitems'));
        sortedItems =
            site.settings.item_addition == 1
                ? _.sortBy(quitems, function(o) {
                      return [parseInt(o.order)];
                  })
                : quitems;
        $('#add_sale, #edit_sale').attr('disabled', false);
        $.each(sortedItems, function() {
            var item = this;
            var item_id = site.settings.item_addition == 1 ? item.item_id : item.id;
            item.order = item.order ? item.order : new Date().getTime();
            var product_id = item.row.id,
                item_type = item.row.type,
                combo_items = item.combo_items,
                item_price = item.row.price,
                item_qty = item.row.qty,
                item_aqty = item.row.quantity,
                item_tax_method = item.row.tax_method,
                item_ds = item.row.discount,
                item_discount = 0,
                item_option = item.row.option,
                item_code = item.row.code,
                item_serial = item.row.serial,
                item_name = item.row.name.replace(/"/g, '&#034;').replace(/'/g, '&#039;');

            var unit_price = item.row.real_unit_price;
            var product_unit = item.row.unit,
                base_quantity = item.row.base_quantity;
            if (item.units && item.row.fup != 1 && product_unit != item.row.base_unit) {
                $.each(item.units, function() {
                    if (this.id == product_unit) {
                        base_quantity = formatDecimal(unitToBaseQty(item.row.qty, this), 4);
                        unit_price = formatDecimal(parseFloat(item.row.base_unit_price) * unitToBaseQty(1, this), 4);
                    }
                });
            }
            if (item.options !== false) {
                $.each(item.options, function() {
                    if (this.id == item.row.option && this.price != 0 && this.price != '' && this.price != null) {
                        item_price = parseFloat(unit_price) + parseFloat(this.price);
                        unit_price = item_price;
                    }
                });
            }

            var ds = item_ds ? item_ds : '0';
            if (ds.indexOf('%') !== -1) {
                var pds = ds.split('%');
                if (!isNaN(pds[0])) {
                    item_discount = formatDecimal((unit_price * parseFloat(pds[0])) / 100, 4);
                } else {
                    item_discount = formatDecimal(ds);
                }
            } else {
                item_discount = formatDecimal(ds);
            }
            product_discount += parseFloat(item_discount * item_qty);

            unit_price = formatDecimal(unit_price - item_discount);
            var pr_tax = item.tax_rate;
            var pr_tax_val = 0,
                pr_tax_rate = 0;
            if (site.settings.tax1 == 1) {
                if (pr_tax !== false) {
                    if (pr_tax.type == 1) {
                        if (item_tax_method == '0') {
                            pr_tax_val = formatDecimal((unit_price * parseFloat(pr_tax.rate)) / (100 + parseFloat(pr_tax.rate)), 4);
                            pr_tax_rate = formatDecimal(pr_tax.rate) + '%';
                        } else {
                            pr_tax_val = formatDecimal((unit_price * parseFloat(pr_tax.rate)) / 100, 4);
                            pr_tax_rate = formatDecimal(pr_tax.rate) + '%';
                        }
                    } else if (pr_tax.type == 2) {
                        pr_tax_val = parseFloat(pr_tax.rate);
                        pr_tax_rate = pr_tax.rate;
                    }
                    product_tax += pr_tax_val * item_qty;
                }
            }
            pr_tax_val = formatDecimal(pr_tax_val);
            item_price = item_tax_method == 0 ? formatDecimal(unit_price - pr_tax_val, 4) : formatDecimal(unit_price);
            unit_price = formatDecimal(unit_price + item_discount, 4);
            var sel_opt = '';
            $.each(item.options, function() {
                if (this.id == item_option) {
                    sel_opt = this.name;
                }
            });
            var row_no = item.id;
            var newTr = $('<tr id="row_' + row_no + '" class="row_' + item_id + '" data-item-id="' + item_id + '"></tr>');
            tr_html =
                '<td><input name="product_id[]" type="hidden" class="rid" value="' +
                product_id +
                '"><input name="product_type[]" type="hidden" class="rtype" value="' +
                item_type +
                '"><input name="product_code[]" type="hidden" class="rcode" value="' +
                item_code +
                '"><input name="product_name[]" type="hidden" class="rname" value="' +
                item_name +
                '"><input name="product_option[]" type="hidden" class="roption" value="' +
                item_option +
                '"><span class="sname" id="name_' +
                row_no +
                '">' +
                item_code +
                ' - ' +
                item_name +
                (sel_opt != '' ? ' (' + sel_opt + ')' : '') +
                '</span> <i class="pull-right fa fa-edit tip pointer edit" id="' +
                row_no +
                '" data-item="' +
                item_id +
                '" title="Edit" style="cursor:pointer;"></i></td>';
            tr_html +=
                '<td class="text-right"><input class="form-control input-sm text-right rprice" name="net_price[]" type="hidden" id="price_' +
                row_no +
                '" value="' +
                formatDecimal(item_price) +
                '"><input class="ruprice" name="unit_price[]" type="hidden" value="' +
                unit_price +
                '"><input class="realuprice" name="real_unit_price[]" type="hidden" value="' +
                item.row.real_unit_price +
                '"><span class="text-right sprice" id="sprice_' +
                row_no +
                '">' +
                formatMoney(item_price) +
                '</span></td>';
            tr_html +=
                '<td><input class="form-control text-center rquantity" tabindex="' +
                (site.settings.set_focus == 1 ? an : an + 1) +
                '" name="quantity[]" type="text" value="' +
                formatQuantity2(item_qty) +
                '" data-id="' +
                row_no +
                '" data-item="' +
                item_id +
                '" id="quantity_' +
                row_no +
                '" onClick="this.select();"><input name="product_unit[]" type="hidden" class="runit" value="' +
                product_unit +
                '"><input name="product_base_quantity[]" type="hidden" class="rbase_quantity" value="' +
                base_quantity +
                '"></td>';
            if ((site.settings.product_discount == 1 && allow_discount == 1) || item_discount) {
                tr_html +=
                    '<td class="text-right"><input class="form-control input-sm rdiscount" name="product_discount[]" type="hidden" id="discount_' +
                    row_no +
                    '" value="' +
                    item_ds +
                    '"><span class="text-right sdiscount text-danger" id="sdiscount_' +
                    row_no +
                    '">' +
                    formatMoney(0 - item_discount * item_qty) +
                    '</span></td>';
            }
            if (site.settings.tax1 == 1) {
                tr_html +=
                    '<td class="text-right"><input class="form-control input-sm text-right rproduct_tax" name="product_tax[]" type="hidden" id="product_tax_' +
                    row_no +
                    '" value="' +
                    pr_tax.id +
                    '"><span class="text-right sproduct_tax" id="sproduct_tax_' +
                    row_no +
                    '">' +
                    (pr_tax_rate ? '(' + formatDecimal(pr_tax_rate) + ')' : '') +
                    ' ' +
                    formatMoney(pr_tax_val * item_qty) +
                    '</span></td>';
            }
            tr_html +=
                '<td class="text-right"><span class="text-right ssubtotal" id="subtotal_' +
                row_no +
                '">' +
                formatMoney((parseFloat(item_price) + parseFloat(pr_tax_val)) * parseFloat(item_qty)) +
                '</span></td>';
            tr_html +=
                '<td class="text-center"><i class="fa fa-times tip pointer qudel" id="' +
                row_no +
                '" title="Remove" style="cursor:pointer;"></i></td>';
            newTr.html(tr_html);
            newTr.prependTo('#quTable');
            total += formatDecimal((parseFloat(item_price) + parseFloat(pr_tax_val)) * parseFloat(item_qty), 4);
            count += parseFloat(item_qty);
            an++;
            if (item_type == 'standard' && item.options !== false) {
                $.each(item.options, function() {
                    if (this.id == item_option && base_quantity > this.quantity) {
                        $('#row_' + row_no).addClass('danger');
                        if (site.settings.overselling != 1) {
                            $('#add_sale, #edit_sale').attr('disabled', true);
                        }
                    }
                });
            } else if (item_type == 'standard' && base_quantity > item_aqty) {
                $('#row_' + row_no).addClass('danger');
            } else if (item_type == 'combo') {
                if (combo_items === false) {
                    $('#row_' + row_no).addClass('danger');
                } else {
                    $.each(combo_items, function() {
                        if (parseFloat(this.quantity) < parseFloat(this.qty) * base_quantity && this.type == 'standard') {
                            $('#row_' + row_no).addClass('danger');
                        }
                    });
                }
            }
        });

        var col = 2;
        var tfoot =
            '<tr id="tfoot" class="tfoot active"><th colspan="' +
            col +
            '">Total</th><th class="text-center">' +
            formatQty(parseFloat(count) - 1) +
            '</th>';
        if ((site.settings.product_discount == 1 && allow_discount == 1) || product_discount) {
            tfoot += '<th class="text-right">' + formatMoney(product_discount) + '</th>';
        }
        if (site.settings.tax1 == 1) {
            tfoot += '<th class="text-right">' + formatMoney(product_tax) + '</th>';
        }
        tfoot +=
            '<th class="text-right">' +
            formatMoney(total) +
            '</th><th class="text-center"><i class="fa fa-trash-o" style="opacity:0.5; filter:alpha(opacity=50);"></i></th></tr>';
        $('#quTable tfoot').html(tfoot);

        // Order level discount calculations
        if ((qudiscount = localStorage.getItem('qudiscount'))) {
            var ds = qudiscount;
            if (ds.indexOf('%') !== -1) {
                var pds = ds.split('%');
                if (!isNaN(pds[0])) {
                    order_discount = formatDecimal((total * parseFloat(pds[0])) / 100, 4);
                } else {
                    order_discount = formatDecimal(ds);
                }
            } else {
                order_discount = formatDecimal(ds);
            }
        }

        // Order level tax calculations
        if (site.settings.tax2 != 0) {
            if ((qutax2 = localStorage.getItem('qutax2'))) {
                $.each(tax_rates, function() {
                    if (this.id == qutax2) {
                        if (this.type == 2) {
                            invoice_tax = formatDecimal(this.rate);
                        }
                        if (this.type == 1) {
                            invoice_tax = formatDecimal(((total - order_discount) * this.rate) / 100, 4);
                        }
                    }
                });
            }
        }
        total_discount = parseFloat(order_discount + product_discount);
        // Totals calculations after item addition
        var gtotal = parseFloat(total + invoice_tax - order_discount + shipping);
        $('#total').text(formatMoney(total));
        $('#titems').text(an - 1 + ' (' + formatQty(parseFloat(count) - 1) + ')');
        $('#total_items').val(parseFloat(count) - 1);
        $('#tds').text(formatMoney(order_discount));
        if (site.settings.tax2 != 0) {
            $('#ttax2').text(formatMoney(invoice_tax));
        }
        $('#tship').text(formatMoney(shipping));
        $('#gtotal').text(formatMoney(gtotal));
        if (an > parseInt(site.settings.bc_fix) && parseInt(site.settings.bc_fix) > 0) {
            $('html, body').animate({ scrollTop: $('#sticker').offset().top }, 500);
            $(window).scrollTop($(window).scrollTop() + 1);
        }
        set_page_focus();
    }
}

/* -----------------------------
 * Add Quotation Item Function
 * @param {json} item
 * @returns {Boolean}
 ---------------------------- */
function add_invoice_item(item) {
    if (count == 1) {
        quitems = {};
        if ($('#quwarehouse').val() && $('#qucustomer').val()) {
            $('#qucustomer').select2('readonly', true);
            $('#quwarehouse').select2('readonly', true);
        } else {
            bootbox.alert(lang.select_above);
            item = null;
            return;
        }
    }
    if (item == null) return;

    var item_id = site.settings.item_addition == 1 ? item.item_id : item.id;
    if (quitems[item_id]) {
        var new_qty = parseFloat(quitems[item_id].row.qty) + 1;
        quitems[item_id].row.base_quantity = new_qty;
        if (quitems[item_id].row.unit != quitems[item_id].row.base_unit) {
            $.each(quitems[item_id].units, function() {
                if (this.id == quitems[item_id].row.unit) {
                    quitems[item_id].row.base_quantity = unitToBaseQty(new_qty, this);
                }
            });
        }
        quitems[item_id].row.qty = new_qty;
    } else {
        quitems[item_id] = item;
    }
    quitems[item_id].order = new Date().getTime();
    localStorage.setItem('quitems', JSON.stringify(quitems));
    loadItems();
    return true;
}

if (typeof Storage === 'undefined') {
    $(window).bind('beforeunload', function(e) {
        if (count > 1) {
            var message = 'You will loss data!';
            return message;
        }
    });
}
