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

    // 初始化数据
    initVersion();

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

            let postData = {};
            let url = '/version/add';
            switch (model) {
                case 'all':
                    postData = {model: model, name: name, standard_bill_id: standardBill, ration_lib_id: rationLib,
                        standard_bill: standardBillString, ration_lib: rationLibString};
                    break;
                case 'bill':
                    url = '/version/addLib';
                    postData = {model: model, standard_bill_id: standardBill, standard_bill: standardBillString, id: id};
                    break;
                case 'ration':
                    url = '/version/addLib';
                    postData = {model: model, ration_lib_id: rationLib, ration_lib: rationLibString, id: id};
                    break;
            }
            $.ajax({
                url: url,
                type: 'post',
                data: postData,
                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);
        }
    });

    // 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").show();
                $("#ration-area").show();
                $("#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');
    });

    // 移除操作
    let isDeleting = false;
    $(".remove-version").click(function() {
        let model = $(this).data('model');
        let id = $("#version-id").val();
        let deleteId = $(this).data('id');
        deleteId = parseInt(deleteId);

        if (model === undefined || model === '' || isNaN(deleteId)) {
            return false;
        }
        if (isDeleting) {
            return false;
        }

        $.ajax({
            url: '/version/deleteLib',
            type: 'post',
            data: {id: id, model: model, delete_id: deleteId},
            error: function() {
                isDeleting = false;
            },
            beforeSend: function() {
                isDeleting = true;
            },
            success: function(response) {
                isDeleting = false;
                if (response.err === 0) {
                    window.location.reload();
                } else {
                    let msg = response.msg === undefined ? '未知错误' : response.msg;
                    alert(msg);
                }
            }
        });

    });

});

/**
 * 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']").val();
    let rationLib = $("select[name='ration_lib']").val();

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

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

    if ((model === 'all' || 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];
}