function persistPatronSelections(form) {
    var selected_patrons;
    var persistence_checkbox = $("#maintain_selections_" + form)[0];
    var persist = persistence_checkbox.checked
    if (form === 'patron-merge-form' && persist) {
        // We should only keep the id for the patron that is being kept in the merge
        var keeper_checkboxes = $(".keeper")
        var patron_to_keep = keeper_checkboxes.filter(":checked")
        var patron_id = patron_to_keep[0].value
        selected_patrons = [ patron_id ]
    } else {
        selected_patrons = persist ? JSON.parse(localStorage.getItem("patron_search_selections")) : [];
    }
    localStorage.setItem('patron_search_selections', JSON.stringify(selected_patrons));
}

function showPatronSelections(number) {
    if (number === 0) {
        $("#table_search_selections").hide()
    } else {
        $("#table_search_selections").show().find("span").text(__("Patrons selected: %s").format(number));
    }
}

function prepSelections() {
    var selected_patrons = JSON.parse(localStorage.getItem("patron_search_selections"));
    if (selected_patrons && selected_patrons.length > 0) {
        showPatronSelections(selected_patrons.length);

        $('#merge-patrons').prop('disabled', true);
        $("input.selection").each(function () {
            var cardnumber = $(this).val();
            if (selected_patrons.indexOf(cardnumber) >= 0) {
                $(this).prop("checked", true);
            }
        });

        if (selected_patrons.length > 1) {
            $('#batch-mod-patrons, #merge-patrons, #patronlist-menu').removeClass("disabled").prop('disabled', false);
        }
    } else {
        showPatronSelections(0);
        $('#merge-patrons').prop('disabled', true);
        $("input.selection").each(function () {
            $(this).prop("checked", false);
        });
        $('#batch-mod-patrons, #merge-patrons, #patronlist-menu').addClass("disabled").prop('disabled', true);
    }
}

$(document).ready(function () {
    var form_identifier = $("#form-identifier").data();
    if(form_identifier && form_identifier.hasOwnProperty('identifier') && form_identifier.identifier) {
        var form_id = form_identifier.identifier;
        if (form_id !== 'new-patron-list_form') {
            $("#" + form_id).on("submit", function(e){
                persistPatronSelections(form_id)
            });
        }
    }
})