function setupIntentsPanel() {
    $("#newIntent")
        .dialog({
            autoOpen: false,
            title: "Create new intent",
            height: "auto",
            width: "auto",
            autoResize: true,
            resizable: false,
            modal: true,
            closeOnEscase: true,
            draggable: false,
            open: function() {
                $("input").val("");
                $(".ui-state-error").hide();
                $(this)
                    .find("input:visible")
                    .first()
                    .focus();
                $(this).dialog("option", "title", "Create new intent");
            },
            buttons: {
                "Create new intent": function() {
                    var name = $("#newIntent #intentName")
                        .val()
                        .trim();
                    if (!canUpdateDB()) return;
                    // check intent name
                    if (!isValidEntityName(name)) {
                        $("#newIntent .ui-state-error")
                            .text("Invalid intent name")
                            .show();
                        return;
                    }
                    createIntent(name);
                    $(this).dialog("close");
                },
                Cancel: function() {
                    $(this).dialog("close");
                }
            }
        })
        .keydown(function(event) {
            if (event.which === $.ui.keyCode.ENTER) return false;
            return true;
        });

    if (canUpdateDB())
        $("#createNewIntentButton")
            .button()
            .click(function() {
                $("#newIntent")
                    .data("vp3IntentName", name)
                    .dialog("open");
            });
    else $("#createNewIntentButton").hide();

    setupIntentsTable();
}

function setupIntentsTable() {
    setupNiceTable($("#intentssTable"), {
        headers: {0: {sorter: false}, 3: {sorter: "shortDate"}},
        dblClick: function($tr) {
            getIntent($tr, "edit");
        },
        cmenuDelegate: ".intentMenu",
        cmenu: [
            {
                title: "View",
                uiIcon: "ui-icon-document",
                action: function(event, ui) {
                    setTimeout(function() {
                        getIntent($niceTableCurrentTR, "view");
                    }, 0);
                }
            },
            {
                title: "Edit",
                uiIcon: "ui-icon-pencil",
                disabled: !canUpdateDB(),
                action: function(event, ui) {
                    setTimeout(function() {
                        getIntent($niceTableCurrentTR, "edit");
                    }, 0);
                }
            },
            {title: "---"},
            {
                title: "Create new intent",
                uiIcon: "ui-icon-plus",
                disabled: !canUpdateDB(),
                action: function(event, ui) {
                    setTimeout(function() {
                        $("#newIntent")
                            .data("vp3Action", "create")
                            .data("vp3IntentName", name)
                            .dialog("open");
                    }, 0);
                }
            },
            {
                title: "Delete",
                uiIcon: "ui-icon-trash",
                disabled: !canUpdateDB(),
                action: function(event, ui) {
                    setTimeout(function() {
                        deleteIntent($niceTableCurrentTR);
                    }, 0);
                }
            },
            {
                title: "Rename",
                uiIcon: "ui-icon-grip-dotted-horizontal",
                disabled: true,
                action: function(event, ui) {
                    setTimeout(function() {
                        var name = $niceTableCurrentTR
                            .find(".intentName")
                            .text()
                            .trim();
                        if (name) renameEntity(name, "intent");
                    });
                }
            }
        ]
    });
}

function getIntent($tr, action) {
    var name = $tr
        .find(".intentName")
        .text()
        .trim();
    var url = getIntentUrl(name);
    switch (action) {
        case "view":
            window.open(url, name);
            break;
        case "edit":
            window.open(url + "/edit", name);
            break;
    }
}

function deleteIntent($tr) {
    var name = $tr
        .find(".intentName")
        .text()
        .trim();
    if (!name) return;

    showDialog("Are you sure you want to delete intent '" + name + "'?", "Confirm Delete", "highlight", {
        Cancel: function() {
            $(this).dialog("close");
        },
        "Yes, Delete!": function() {
            $(this).dialog("close");
            $.ajax({
                type: "DELETE",
                url: formatEndpoint(getIntentUrl(name)),
                success: function(data, textStatus, jqXHR) {
                    switch (data.severity) {
                        case "information":
                            $tr.remove();
                            showInfo(data.message);
                            break;
                        case "error":
                            showError(data.message);
                            break;
                        case "warning":
                            showWarning(data.message);
                            break;
                    }
                },
                error: function(jqXHR, textStatus, errorThrown) {
                    showError("Cannot delete intent - " + errorThrown);
                }
            });
        }
    });
}

function createIntent(intentName) {
    $.ajax({
        type: "PUT",
        url: formatEndpoint(getIntentUrl(intentName)),
        processData: false,
        success: function(data, textStatus, jqXHR) {
            switch (data.severity) {
                case "information":
                    var $firstRow = $(".intentRow:first");
                    $tr = $firstRow.clone().insertBefore($firstRow);
                    $tr.find(".intentName").text(intentName);
                    $tr.find(".updateTime").text(new Date(data.serverTime).toLocaleString());
                    $tr.find(".updateUser").text(data.serverUser);
                    showInfo(data.message);
                    break;
                case "error":
                    showError(data.message);
                    break;
                case "warning":
                    showWarning(data.message);
                    break;
            }
        },
        error: function(jqXHR, textStatus, errorThrown) {
            showError("Cannot create intent - " + errorThrown);
        }
    });
}