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$(function () {

    var hotDealModels = [];
    var dealsPage = 1;
    var dealsQuery = '';
    var searchDebounce = null;

    $(document).on('click', ".manage-hot-deals", function () {
        loadHotDeals("main-content");
    });

    // Brand choice drives the add flow: model picker + slot usage for that brand
    $(document).on('change', "#hot-deal-brand", function () {
        var brandId = $(this).val();
        var input = $('#hot-deal-model-search');
        input.val('').removeData('catalogId');
        if (!brandId) {
            input.prop('disabled', true).attr('placeholder', 'Select a brand first...');
            $('#hot-deal-slots').text('');
            $('.add-hot-deal').prop('disabled', false);
            $('#hot-deal-cap-notice').hide();
            return;
        }
        input.prop('disabled', false).attr('placeholder', 'Type 2+ letters to search models...');
        loadHotDealModels(brandId);
        loadSlots(brandId);
    });

    // All five attributes are mandatory with NO defaults - the add form starts empty
    function readAddAttributes() {
        var warranty = $('#hot-deal-warranty').val();
        var condition = $('#hot-deal-condition').val();
        var activated = $('#hot-deal-activated').val();
        var finance = $('#hot-deal-finance').val();
        var affordability = $('#hot-deal-affordability').val();
        if (warranty === '' || warranty === null) {
            alert("Warranty months is required (0 = no warranty, up to 12)");
            return null;
        }
        var warrantyNum = parseInt(warranty, 10);
        if (isNaN(warrantyNum) || warrantyNum < 0 || warrantyNum > 12) {
            alert("Warranty months must be between 0 and 12");
            return null;
        }
        if (!condition) {
            alert("Condition is required");
            return null;
        }
        if (!activated) {
            alert("Activated (Yes/No) is required");
            return null;
        }
        if (!finance) {
            alert("Finance mapping (Yes/No) is required");
            return null;
        }
        if (!affordability) {
            alert("Affordability (Yes/No) is required");
            return null;
        }
        return "&warrantyMonths=" + warrantyNum + "&condition=" + condition
            + "&activated=" + activated + "&financeMapping=" + finance
            + "&affordability=" + affordability;
    }

    $(document).on('click', ".add-hot-deal", function () {
        var brandId = $('#hot-deal-brand').val();
        var catalogId = $('#hot-deal-model-search').data('catalogId');
        var startDate = $('#hot-deal-start-date').val();
        var endDate = $('#hot-deal-end-date').val();
        if (!brandId) {
            alert("Please select a brand");
            return false;
        }
        if (!catalogId) {
            alert("Please select a model from the list");
            return false;
        }
        if (!startDate || !endDate) {
            alert("Start and end dates are required");
            return false;
        }
        if (endDate < startDate) {
            alert("End date cannot be before start date");
            return false;
        }
        var attrParams = readAddAttributes();
        if (attrParams == null) {
            return false;
        }
        doPostAjaxRequestHandler(context + "/hotDeals/add?brandId=" + brandId
            + "&catalogItemId=" + catalogId + "&startDate=" + startDate + "&endDate=" + endDate
            + attrParams,
            function (response) {
                if (response == 'true') {
                    loadDealsTable();
                    loadHotDealModels(brandId);
                    loadSlots(brandId);
                    $('#hot-deal-model-search').val('').removeData('catalogId');
                    $('#hot-deal-warranty').val('');
                    $('#hot-deal-condition, #hot-deal-activated, #hot-deal-finance, #hot-deal-affordability').val('');
                } else {
                    alert(response);
                }
            });
    });

    // Server-side search over the all-deals table (model or brand), debounced
    $(document).on('input', "#hot-deal-table-search", function () {
        var q = $(this).val();
        clearTimeout(searchDebounce);
        searchDebounce = setTimeout(function () {
            dealsQuery = q;
            dealsPage = 1;
            loadDealsTable();
        }, 400);
    });

    $(document).on('click', ".hot-deal-page-prev", function () {
        if (dealsPage > 1) {
            dealsPage--;
            loadDealsTable();
        }
    });

    $(document).on('click', ".hot-deal-page-next", function () {
        var pages = $('#hot-deals-table-panel').data('pages') || 1;
        if (dealsPage < pages) {
            dealsPage++;
            loadDealsTable();
        }
    });

    $(document).on('change', ".hot-deal-row-start, .hot-deal-row-end, .hot-deal-row-field", function () {
        $(this).closest('tr').find('.save-hot-deal').show();
    });

    $(document).on('click', ".save-hot-deal", function () {
        var row = $(this).closest('tr');
        var id = row.data('dealId');
        var startDate = row.find('.hot-deal-row-start').val();
        var endDate = row.find('.hot-deal-row-end').val();
        var warranty = row.find('.hot-deal-row-warranty').val();
        if (!startDate || !endDate) {
            alert("Start and end dates are required");
            return false;
        }
        if (endDate < startDate) {
            alert("End date cannot be before start date");
            return false;
        }
        var warrantyNum = parseInt(warranty, 10);
        if (warranty === '' || isNaN(warrantyNum) || warrantyNum < 0 || warrantyNum > 12) {
            alert("Warranty months must be between 0 and 12");
            return false;
        }
        doPostAjaxRequestHandler(context + "/hotDeals/update?id=" + id
            + "&startDate=" + startDate + "&endDate=" + endDate
            + "&warrantyMonths=" + warrantyNum
            + "&condition=" + row.find('.hot-deal-row-condition').val()
            + "&activated=" + row.find('.hot-deal-row-activated').val()
            + "&financeMapping=" + row.find('.hot-deal-row-finance').val()
            + "&affordability=" + row.find('.hot-deal-row-affordability').val(),
            function (response) {
                if (response == 'true') {
                    loadDealsTable();
                    refreshBrandPanel();
                } else {
                    alert(response);
                }
            });
    });

    $(document).on('click', ".remove-hot-deal", function () {
        var id = $(this).closest('tr').data('dealId');
        if (confirm("Remove this model from hot deals?") == true) {
            doPostAjaxRequestHandler(context + "/hotDeals/remove?id=" + id,
                function (response) {
                    if (response == 'true') {
                        loadDealsTable();
                        refreshBrandPanel();
                    } else {
                        alert(response);
                    }
                });
        }
    });

    function loadHotDeals(domId) {
        doGetAjaxRequestHandler(context + "/manageHotDeals", function (response) {
            $('#' + domId).html(response);
            dealsPage = 1;
            dealsQuery = '';
            setDefaultHotDealDates();
            loadDealsTable();
        });
    }

    function loadDealsTable() {
        doGetAjaxRequestHandler(context + "/hotDeals/all?page=" + dealsPage
            + "&q=" + encodeURIComponent(dealsQuery), function (response) {
            $('#hot-deals-table-container').html(response);
            dealsPage = $('#hot-deals-table-panel').data('page') || 1;
        });
    }

    function refreshBrandPanel() {
        var brandId = $('#hot-deal-brand').val();
        if (brandId) {
            loadHotDealModels(brandId);
            loadSlots(brandId);
        }
    }

    function loadSlots(brandId) {
        doGetAjaxRequestHandler(context + "/hotDeals/slots?brandId=" + brandId, function (response) {
            $('#hot-deal-slots').text(response + " slots used");
            var parts = response.split('/');
            var full = parts.length == 2 && parseInt(parts[0], 10) >= parseInt(parts[1], 10);
            $('#hot-deal-slots').toggleClass('label-danger', full).toggleClass('label-default', !full);
            $('.add-hot-deal').prop('disabled', full);
            $('#hot-deal-cap-notice').toggle(full);
        });
    }

    function loadHotDealModels(brandId) {
        doGetAjaxRequestHandler(context + "/hotDeals/models?brandId=" + brandId, function (response) {
            hotDealModels = JSON.parse(response);
            var input = $('#hot-deal-model-search');
            input.typeahead('destroy').typeahead({
                source: hotDealModels,
                items: 15,
                minLength: 2,
                displayText: function (item) {
                    return item.description;
                },
                autoSelect: true,
                afterSelect: function (item) {
                    input.data('catalogId', item.catalogId);
                }
            });
        });
    }

    function setDefaultHotDealDates() {
        if ($('#hot-deal-start-date').length && !$('#hot-deal-start-date').val()) {
            $('#hot-deal-start-date').val(moment().format('YYYY-MM-DD'));
            $('#hot-deal-end-date').val(moment().add(15, 'days').format('YYYY-MM-DD'));
        }
    }

});