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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'));

        }

    }

});