/**
 * 版本管理相关js
 *
 * @author CaiAoLin
 * @date 2017/7/28
 * @version
 */
$(document).ready(function() {
    let isAdding = false;
    let model = '';
    let section = 'bill';
    let id = $("#version-id").val();

    // 计价规则页面初始化数据
    if ($("#section").length > 0) {
        initVersion();
    }

    // 计价类型选择
    $(".nav-tabs li > a").click(function() {
        section = $(this).attr("aria-controls");
    });

    // 新增版本
    $("#add-version").click(function() {
        try {
            let [name, standardBill, rationLib, standardBillString, rationLibString] = getAndValidData(model);

            let url = '/version/add';
            if (model === 'all') {
                // 新增版本操作
                $.ajax({
                    url: url,
                    type: 'post',
                    data: {name: name},
                    error: function() {
                        isAdding = false;
                    },
                    beforeSend: function() {
                        isAdding = true;
                    },
                    success: function(response) {
                        isAdding = false;
                        if (response.err === 0) {
                            window.location.reload();
                        } else {
                            let msg = response.msg === undefined ? '未知错误' : response.msg;
                            alert(msg);
                        }
                    }
                });
            } else {
                // 新增标准清单/定额库
                let addLib = {
                    name: '',
                    id: ''
                };
                switch (model) {
                    case 'bill':
                        addLib.name = standardBillString;
                        addLib.id = standardBill;
                        break;
                    case 'ration':
                        addLib.name = rationLibString;
                        addLib.id = rationLib;
                        break;
                }
                // 判断是否有重复的数据
                if ($("input:hidden[name='"+ model +"_lib'][data-id='"+ addLib.id +"']").length > 0) {
                    alert('重复添加数据!');
                    return false;
                }

                let removeHtml = '<a class="pull-right text-danger remove-lib" data-model="bill" ' +
                    'title="移除"><span class="glyphicon glyphicon-remove"></span></a>';
                let tmpHtml = '<p class="form-control-static">' + removeHtml + addLib.name +
                    '<input type="hidden" data-id="'+ addLib.id +'" name=\'' + model + '_lib\' value=\'' + JSON.stringify(addLib) + '\'>' + '</p>';
                $("." + model + "-list").append(tmpHtml);
                $('#addversion').modal('hide');
            }

        } catch (error) {
            alert(error);
        }
    });

    // 新增计价规则
    $("#add-valuation").click(function() {
        try {
            if (id === '') {
                throw '页面数据有误';
            }
            let name = $("input[name='valuation_name']").val();
            if (name === '') {
                throw '请填写计价规则名称';
            }

            $.ajax({
                url: '/version/add-valuation',
                type: 'post',
                data: {name: name, id: id, section: section},
                error: function() {
                    isAdding = false;
                },
                beforeSend: function() {
                    isAdding = true;
                },
                success: function(response) {
                    isAdding = false;
                    if (response.err === 0) {
                        window.location.reload();
                    } else {
                        let msg = response.msg === undefined ? '未知错误' : response.msg;
                        alert(msg);
                    }
                }
            });
        } catch (error) {
            alert(error);
            return false;
        }
    });

    // 选择省份后读取数据
    $("select[name='standard_bill_province'],select[name='ration_lib_province']").change(function() {
        let name = $(this).attr('name');

        let billListData = billList === undefined ? [] : JSON.parse(billList);
        let rationLibData = rationList === undefined ? [] : JSON.parse(rationList);
        if (billListData.length <= 0 || rationLibData.length <= 0) {
            return false;
        }
        let sourceData = name === 'standard_bill_province' ? billListData : rationLibData;
        let selectedId = $(this).val();
        if (sourceData[selectedId] === undefined) {
            return false;
        }
        let defaultString = name === 'standard_bill_province' ? '请选择标准清单' : '请选择定额库';
        let html = '<option value="">' + defaultString + '</option>';
        for(let tmp of sourceData[selectedId]) {
            let tmpHtml = '<option value="' + tmp.id + '">' + tmp.name + '</option>';
            html += tmpHtml;
        }

        // 渲染
        let targetSelector = name === 'standard_bill_province' ? $("select[name='standard_bill']") : $("select[name='ration_lib']");
        targetSelector.children('option').remove();
        targetSelector.html(html);
    });

    // 添加
    $(".add-version").click(function() {
        model = $(this).data('model');
        switch (model) {
            case 'all':
                $("#name-area").show();
                $("#bill-area").hide();
                $("#ration-area").hide();
                $("#add-version-title").text('添加新版本');
                break;
            case 'bill':
                $("#name-area").hide();
                $("#bill-area").show();
                $("#ration-area").hide();
                $("#add-version-title").text('添加标准清单');
                break;
            case 'ration':
                $("#name-area").hide();
                $("#bill-area").hide();
                $("#ration-area").show();
                $("#add-version-title").text('添加定额库');
                break;
        }

        $("#addversion").modal('show');
    });

    // 保存计价规则
    $("#save-valuation").click(function() {
        if (validValuation()) {
            $("form").submit();
        }
    });

    // 移除操作
    $(".bill-list, .ration-list").on("click", ".remove-lib", function() {
        $(this).parent().remove();
    });

    // 计价规则启用/禁止
    $(".enable").click(function() {
        let goingChangeStatus = switchChange($(this));
        let id = $(this).data('id');
        if (id === undefined || id === '' || isAdding) {
            return false;
        }
        $.ajax({
            url: '/version/valuation/' + section + '/enable',
            type: 'post',
            dataType: "json",
            data: {id: id, enable: goingChangeStatus},
            error: function() {
                isAdding = false;
                switchChange($(this));
            },
            beforeSend: function() {
                isAdding = true;
            },
            success: function(response) {
                isAdding = false;
                if (response.err !== 0) {
                    switchChange($(this));
                    alert('更改失败');
                }
            }
        });
    });


});

/**
 * 初始化
 *
 * @return {void|boolean}
 */
function initVersion() {
    if (province === undefined) {
        alert('初始化失败!');
        return false;
    }

    province = JSON.parse(province);
    if (province.length <= 0) {
        alert('省份数据加载失败!');
        return false;
    }

    let billProvinceElement = $("select[name='standard_bill_province']");
    let rationProvinceElement = $("select[name='ration_lib_province']");
    let html = '';
    for (let tmp of province) {
        let tmpHtml = '<option value="' + tmp.id + '">' + tmp.name + '</option>';
        html += tmpHtml;
    }

    billProvinceElement.children('option').first().after(html);
    rationProvinceElement.children('option').first().after(html);
}

/**
 * 校验数据
 *
 * @param {String} model
 * @return {Array}
 */
function getAndValidData(model) {
    let name = $("input[name='version_name']").val();
    let standardBill = $("select[name='standard_bill']").children("option:selected").val();
    let rationLib = $("select[name='ration_lib']").children("option:selected").val();

    if (name === '' && model === 'all') {
        throw '版本名字不能为空';
    }

    if ( model === 'bill' && (standardBill === '' || standardBill === undefined)) {
        throw '请选择标准清单库';
    }

    if (model === 'ration' && (rationLib === '' || rationLib === undefined)) {
        throw '请选择定额库';
    }

    let standardBillString = $("select[name='standard_bill']").children("option:selected").text();
    let rationLibString = $("select[name='ration_lib']").children("option:selected").text();

    return [name, standardBill, rationLib, standardBillString, rationLibString];
}

/**
 * 验证计价规则数据
 *
 * @return {boolean}
 */
function validValuation() {
    let result = false;
    try {
        let valuationName = $("input[name='name']").val();
        if (valuationName === '') {
            throw '请填写计价规则名称';
        }

        let engineering = $("select[name='engineering']").val();
        if (engineering === '' || engineering <= 0) {
            throw '请选择工程专业';
        }

        if ($("input:hidden[name='bill_lib']").length <= 0) {
            throw '请添加标准清单';
        }

        if ($("input:hidden[name='ration_lib']").length <= 0) {
            throw '请添加定额库';
        }

        result = true;
    } catch (error) {
        alert(error);
        result = false;
    }

    return result;
}

/**
 * 切换switch效果
 *
 * @param {Object} element
 * @return {boolean}
 */
function switchChange(element) {
    // 第一个元素判断当前的状态
    let firstButton = element.children("button").first();
    let secondButton = element.children("button").eq(1);
    let currentStatus = firstButton.is(":disabled");
    if (currentStatus) {
        // 当前为true切换到false
        firstButton.removeClass('btn-success').removeClass('disabled').addClass('btn-default').removeAttr("disabled");
        firstButton.text('开启');
        secondButton.removeClass("btn-default").addClass("btn-danger").addClass("disabled").attr("disabled", "disabled");
        secondButton.text('已禁用');
    } else {
        // 当前false切换到true
        firstButton.removeClass("btn-default").addClass("btn-success").addClass("disabled").attr("disabled", "disabled");
        firstButton.text('已开启');
        secondButton.removeClass('btn-danger').removeClass('disabled').addClass('btn-default').removeAttr("disabled");
        secondButton.text('禁用');
    }

    return !currentStatus;
}