var loadProxyInfo = (function ($) {
    var i18n = {}, currentProxyType, currentTitle;
    //param names in Basic tab
    var basicParamNamesIgnore = ['toml'];
    var basicParamNames = ['name', 'type', 'localIP', 'localPort', 'customDomains', 'subdomain', 'remotePort', 'useEncryption', 'useCompression'];
    var basicParamNamesMap = {
        useEncryption: 'transport.useEncryption',
        useCompression: 'transport.useCompression'
    }

    /**
     * get proxy info
     * @param lang {{}} language json
     * @param title page title
     * @param proxyType proxy type
     */
    function loadProxyInfo(lang, title, proxyType) {
        if (lang != null)
            i18n = lang;
        if (title != null)
            currentTitle = title;
        if (proxyType != null)
            currentProxyType = proxyType.toLowerCase();
        $("#title").text(currentTitle);
        $('#content').empty();
        var loading = layui.layer.load();

        $.getJSON('/proxy/api/config', {
            type: currentProxyType
        }).done(function (result) {
            if (result.success) {
                $('#content').html($('#proxyListTableTemplate').html());
                renderProxyListTable(result.data);
            } else {
                layui.layer.msg(result.message);
            }
        }).always(function () {
            layui.layer.close(loading);
        });
    }

    /**
     * render proxy list table
     * @param data {[Map<string,string>]} proxy data
     */
    function renderProxyListTable(data) {
        data.forEach(function (temp) {
            temp.name = temp.name || '-';
            temp.localIP = temp.localIP || '-';
            temp.localPort = temp.localPort || '-';
            temp.transport = temp.transport || {};
            temp.transport.useEncryption = temp.transport.useEncryption || false;
            temp.transport.useCompression = temp.transport.useCompression || false;
            if (currentProxyType === 'http' || currentProxyType === 'https') {
                temp.customDomains = temp.customDomains || '-';
                temp.subdomain = temp.subdomain || '-';
            }
        });

        var $section = $('#content > section');
        var cols = [
            {type: 'checkbox'},
            {field: 'name', title: i18n['Name'], sort: true},
            {field: 'type', title: i18n['Type'], width: 110, sort: true},
            {field: 'localIP', title: i18n['LocalIP'], width: 150, sort: true},
            {field: 'localPort', title: i18n['LocalPort'], width: 120, sort: true},
        ];

        if (currentProxyType === 'tcp' || currentProxyType === 'udp') {
            cols.push({field: 'remotePort', title: i18n['RemotePort'], width: 130, sort: true});
        } else if (currentProxyType === 'http' || currentProxyType === 'https') {
            cols.push({field: 'customDomains', title: i18n['CustomDomains'], sort: true});
            cols.push({field: 'subdomain', title: i18n['Subdomain'], width: 150, sort: true});
        }

        cols.push({
            field: 'useEncryption', title: i18n['UseEncryption'], width: 170, templet: function (d) {
                return i18n[d.transport.useEncryption]
            }, sort: true
        });
        cols.push({
            field: 'useCompression', title: i18n['UseCompression'], width: 170, templet: function (d) {
                return i18n[d.transport.useCompression]
            }, sort: true
        });
        cols.push({title: i18n['Operation'], width: 150, toolbar: '#proxyListOperationTemplate'});

        var proxyListTable = layui.table.render({
            elem: '#proxyListTable',
            height: $section.height(),
            text: {none: i18n['EmptyData']},
            cols: [cols],
            page: {
                layout: navigator.language.indexOf("zh") === -1 ? ['first', 'prev', 'next', 'last'] : ['prev', 'page', 'next', 'skip', 'count', 'limit']
            },
            toolbar: '#proxyListToolbarTemplate',
            defaultToolbar: false,
            data: data,
            initSort: {
                field: 'name',
                type: 'asc'
            }
        });

        window.onresize = function () {
            proxyListTable.resize();
        }

        bindFormEvent();
    }

    /**
     * bind event of {{@link layui.form}}
     */
    function bindFormEvent() {
        layui.table.on('toolbar(proxyListTable)', function (obj) {
            var id = obj.config.id;
            var checkStatus = layui.table.checkStatus(id);
            var data = checkStatus.data;

            for (var key in data) {
                data[key] = data[key] === '-' ? '' : data[key];
            }

            switch (obj.event) {
                case 'add':
                    proxyPopup({
                        type: currentProxyType
                    }, false);
                    break
                case 'remove':
                    batchRemovePopup(data);
                    break
            }
        });

        layui.table.on('tool(proxyListTable)', function (obj) {
            var data = obj.data;

            for (var key in data) {
                data[key] = data[key] === '-' ? '' : data[key];
            }

            switch (obj.event) {
                case 'update':
                    proxyPopup(data, true);
                    break;
                case 'remove':
                    batchRemovePopup([data]);
                    break;
            }
        });
    }

    /**
     * addOrUpdate proxy popup
     * @param data {Map<string,object>} proxy data
     * @param update update flag. true - update, false - add
     */
    function proxyPopup(data, update) {
        var basicData = {};
        var extraData = [];
        if (data != null) {
            var tempData = $.extend(true, {}, data);

            basicParamNamesIgnore.forEach(function (basicName) {
                if (basicParamNamesMap.hasOwnProperty(basicName)) {
                    try {
                        eval('delete tempData.' + basicParamNamesMap[basicName])
                    } catch (e) {
                    }
                } else if (data.hasOwnProperty(basicName)) {
                    delete tempData[basicName];
                }
            });

            basicParamNames.forEach(function (basicName) {
                if (basicParamNamesMap.hasOwnProperty(basicName)) {
                    try {
                        basicData[basicName] = eval('tempData.' + basicParamNamesMap[basicName]);
                        eval('delete tempData.' + basicParamNamesMap[basicName])
                    } catch (e) {
                        basicData[basicName] = true;
                    }
                } else if (data.hasOwnProperty(basicName)) {
                    basicData[basicName] = tempData[basicName];
                    delete tempData[basicName];
                }
            });

            for (var key in tempData) {
                extraData.push({
                    name: key,
                    value: tempData[key]
                });
            }
        }
        var html = document.getElementById('addProxyTemplate').innerHTML;
        var content = layui.laytpl(html).render({
            type: currentProxyType,
            extraData: extraData
        });
        layui.layer.open({
            type: 1,
            title: false,
            skin: 'proxy-popup',
            area: ['450px', '400px'],
            content: content,
            btn: [i18n['Confirm'], i18n['Cancel']],
            btn1: function (index) {
                if (layui.form.validate('#addProxyTemplate')) {
                    var formData = layui.form.val('addProxyForm');
                    var $items = $('#addProxyForm .extra-param-tab-item .extra-param-item');
                    $items.each(function () {
                        var name = $(this).find('input').first().val();
                        var value = $(this).find('input').last().val();
                        formData[name] = value;
                    });

                    addOrUpdate(formData, index, update);
                }
            },
            btn2: function (index) {
                layui.layer.close(index);
            },
            success: function (layero, index, that) {
                //get and set old name for update form
                var oldNameKey = layero.find('#oldName').attr('name');
                basicData[oldNameKey] = basicData.name;
                layui.form.val('addProxyForm', basicData);
                proxyPopupSuccess();
            }
        });
    }

    function proxyPopupSuccess() {
        layui.form.render(null, 'addProxyForm');
        layui.form.on('input-affix(addition)', function (obj) {
            var $paramValue = $(obj.elem);
            var $paramName = $paramValue.closest('.layui-form-item').find('input');
            var name = $paramName.first().val();
            var value = $paramValue.val();
            var html = document.getElementById('extraParamAddedTemplate').innerHTML;
            var formItem = layui.laytpl(html).render({
                name: name,
                value: value
            });
            $paramValue.closest('.layui-tab-item').append(formItem);
            $paramName.val('');
            $paramValue.val('');

            layui.form.render();
        });
        layui.form.on('input-affix(subtraction)', function (obj) {
            var $elem = $(obj.elem);
            $elem.closest('.layui-form-item').remove();
        });
    }

    /**
     * addOrUpdate proxy action
     * @param data proxy data
     * @param index popup index
     * @param update update flag. true - update, false - add
     */
    function addOrUpdate(data, index, update) {
        var loading = layui.layer.load();
        var url = '';
        if (update) {
            url = '/update';
        } else {
            url = '/add?type=' + currentProxyType;
        }
        $.ajax({
            url: url,
            type: 'post',
            contentType: 'application/json',
            data: JSON.stringify(data),
            success: function (result) {
                if (result.success) {
                    layui.layer.close(index);
                    reloadTable();
                    layui.layer.msg(i18n['OperateSuccess']);
                } else {
                    errorMsg(result);
                    if (result.code === 5) {
                        layui.layer.close(index);
                        reloadTable();
                    }
                }
            },
            complete: function () {
                layui.layer.close(loading);
            }
        });
    }

    /**
     * batch remove proxy popup
     * @param data {[Map<string,string>]} proxy data list
     */
    function batchRemovePopup(data) {
        if (data.length === 0) {
            layui.layer.msg(i18n['ShouldCheckProxy']);
            return;
        }
        data.forEach(function (temp) {
            for (var key in temp) {
                if (typeof temp[key] === 'boolean') {
                    temp[key] = temp[key] + '';
                }
            }
        });
        layui.layer.confirm(i18n['ConfirmRemoveProxy'], {
            title: i18n['OperationConfirm'],
            btn: [i18n['Confirm'], i18n['Cancel']]
        }, function (index) {
            layui.layer.close(index);

            var loading = layui.layer.load();
            $.post({
                url: '/remove',
                type: 'post',
                contentType: 'application/json',
                data: JSON.stringify(data),
                success: function (result) {
                    if (result.success) {
                        layui.layer.close(index);
                        reloadTable();
                        layui.layer.msg(i18n['OperateSuccess']);
                    } else {
                        errorMsg(result);
                        if (result.code === 5) {
                            layui.layer.close(index);
                            reloadTable();
                        }
                    }
                },
                complete: function () {
                    layui.layer.close(loading);
                }
            });
        });
    }

    /**
     * reload proxy table
     */
    function reloadTable() {
        loadProxyInfo(null, null, null);
    }

    /**
     * show error message popup
     * @param result
     */
    function errorMsg(result) {
        var reason = i18n['OtherError'];
        if (result.code === 1)
            reason = i18n['ParamError'];
        else if (result.code === 2)
            reason = i18n['FrpClientError'];
        else if (result.code === 3)
            reason = i18n['ProxyExist'];
        else if (result.code === 4)
            reason = i18n['ProxyNotExist'];
        if (result.code === 5) {
            layui.layer.alert(result.message, {
                title: i18n['ClientTips'],
                maxWidth: 350,
                btn: [i18n['Confirm']]
            });
        } else {
            layui.layer.msg(i18n['OperateFailed'] + ',' + reason);
        }
    }

    return loadProxyInfo;
})(layui.$);