Calculation/app/public/js/path_tree.js

/**
 * （需使用 decimal.min.js, zh_calc.js）
 *
 * 构建pathTree
 * 可动态加载子节点，要求子节点获取接口按/xxx/get-children定义
 *
 * 所台账结构数据均用到该文件，请勿随意修改。
 * @param {Object} setting - 设置
 * @returns {PathTree}
 */

'use strict';

const itemsPre = 'id_';

class PosData {
    /**
     * 构造函数
     * @param {id|Number, masterId|Number} setting
     */
    constructor(setting) {
        // 无索引
        this.datas = [];
        // 以key为索引
        this.items = {};
        // 以分类id为索引的有序
        this.ledgerPos = {};
        // pos设置
        this.setting = setting;
    }

    /**
     * 加载部位明细数据
     * @param datas
     */
    loadDatas(datas) {
        this.datas = datas;
        this.items = {};
        this.ledgerPos = {};
        for (const data of this.datas) {
            const key = itemsPre + data[this.setting.id];
            this.items[key] = data;

            const masterKey = itemsPre + data[this.setting.ledgerId];
            if (!this.ledgerPos[masterKey]) {
                this.ledgerPos[masterKey] = [];
            }
            this.ledgerPos[masterKey].push(data);
        }
        for (const prop in this.ledgerPos) {
            this.resortLedgerPos(this.ledgerPos[prop]);
        }
    }

    /**
     * 更新数据
     * @param datas
     */
    updateDatas(data) {
        const datas = data instanceof Array ? data : [data];
        const result = { create: [], update: [] }, resort = [];
        for (const d of datas) {
            const key = itemsPre + d[this.setting.id];
            if (!this.items[key]) {
                this.datas.push(d);
                this.items[key] = d;

                const masterKey = itemsPre + d[this.setting.ledgerId];
                if (!this.ledgerPos[masterKey]) {
                    this.ledgerPos[masterKey] = [];
                }
                this.ledgerPos[masterKey].push(d);
                result.create.push(d);
            } else {
                const pos = this.items[key];
                for (const prop in d) {
                    pos[prop] = d[prop];
                }
                result.update.push(pos);
            }
            const masterKey = itemsPre + d[this.setting.ledgerId];
            if (resort.indexOf(masterKey) === -1) {
                resort.push(masterKey);
            }
        }
        if (this.setting.calcFun) {
            for (const u of result.update) {
                this.setting.calcFun(u);
            }
            for (const c of result.create) {
                this.setting.calcFun(c);
            }
        }
        for (const s of resort) {
            this.resortLedgerPos(this.ledgerPos[s]);
        }
        return result;

    }

    /**
     * 移除数据
     * @param datas
     */
    removeDatas(data) {
        if (!data) { return; }
        const datas = data instanceof Array ? data : [data];
        for (let i = datas.length - 1; i >= 0; i--) {
            const id = datas[i];
            const d = this.getPos(id);
            this.datas.splice(this.datas.indexOf(d), 1);
            const key = itemsPre + d[this.setting.id];
            delete this.items[key];
            const masterKey = itemsPre + d[this.setting.ledgerId];
            const range = this.ledgerPos[masterKey];
            range.splice(range.indexOf(d), 1);
            if (range.length === 0) {
                delete this.ledgerPos[masterKey];
            }
        }
    }

    /**
     * 移除数据 - 根据分类id
     * @param mid
     */
    removeDatasByMasterId(mid) {
        const masterKey = itemsPre + mid;
        const range = this.ledgerPos[masterKey];
        if (range) {
            delete this.ledgerPos[masterKey];
            for (const r of range) {
                this.datas.splice(this.datas.indexOf(r), 1);
                const key = itemsPre + r[this.setting.id];
                delete this.items[key];
            }
        }
    }

    getPos(id) {
        return this.items[itemsPre + id];
    }

    getLedgerPos(mid) {
        return this.ledgerPos[itemsPre + mid];
    }

    resortLedgerPos(ledgerPos) {
        if (ledgerPos instanceof Array) {
            ledgerPos.sort(function (a, b) {
                return a.porder - b.porder;
            })
        }
    }

    /**
     * 计算全部
     */
    calculateAll() {
        if (!this.setting.calcFun) { return; }
        for (const pos of this.datas) {
            this.setting.calcFun(pos);
        }
    }
}

class StagePosData extends PosData {
    loadStageData(datas, fieldPre, fields) {
        if (!datas) { return; }
        datas = datas instanceof Array ? datas : [datas];
        const loadedData = [];
        for (const data of datas) {
            let node = this.getPos(data.pid);
            if (node) {
                for (const prop of fields) {
                    if (data[prop] !== undefined) {
                        node[fieldPre + prop] = data[prop];
                    }
                }
                if (this.setting.calcFun) {
                    this.setting.calcFun(node);
                }
                loadedData.push(node);
            }
        }

    }

    loadPreStageData(datas) {
        this.loadStageData(datas, 'pre_', this.setting.updateFields);
    }

    loadCurStageData(datas) {
        this.loadStageData(datas, '', this.setting.updateFields);
    }
}

class MasterPosData extends PosData {
    /**
     * 构造函数
     * @param {id|Number, masterId|Number} setting
     */
    constructor(setting) {
        super(setting);
        // 关联索引
        this.masterItems = {};
    }
    /**
     * 加载主数据
     * @param datas
     */
    loadDatas(datas) {
        super.loadDatas(datas);
        // 清空旧数据
        this.masterItems = {};
        // minor数据缓存
        this.minorData = {};
        // 加载全部数据
        for (const data of this.datas) {
            const keyName = itemsPre + data[this.setting.masterId];
            this.masterItems[keyName] = data;
        }
    }
    /**
     * 根据关联id，查找节点
     * @param id
     * @returns {*}
     */
    getMasterItems(id) {
        return this.masterItems[itemsPre + id];
    }
    /**
     * 加载关联数据
     *
     * @param {Array|Object}datas - 需要关联的数据
     * @param {String} fieldPre - 关联字段前缀（关联结果）
     * @param {Array} fields - 关联字段
     * @returns {Array}
     */
    loadMinorData(datas, fieldSuf, fields) {
        if (!datas) return;
        datas = datas instanceof Array ? datas : [datas];
        this.minorData[fieldSuf] = datas;
        const loadedData = [];
        for (const data of datas) {
            let node = this.getMasterItems(data[this.setting.minorId]);
            if (node) {
                for (const prop of fields) {
                    if (data[prop] !== undefined) {
                        node[prop + fieldSuf] = data[prop];
                    }
                }
                loadedData.push(node);
            }
        }
        return loadedData;
    }
}

const createNewPathTree = function (type, setting) {
    class BaseTree {
        /**
         * 构造函数
         */
        constructor(setting) {
            const self = this;
            // 无索引
            this.datas = [];
            // 以key为索引
            this.items = {};
            // 以排序为索引
            this.nodes = [];
            // 根节点
            this.children = [];
            // 树设置
            this.setting = setting;

            if (this.setting.markFoldKey) {
                const markStr = getLocalCache(this.setting.markFoldKey);
                const markData = markStr ? markStr.split('|') : ['', ''];
                try {
                    this.markFold = markData[0] === this.setting.markFoldSubKey
                        ? (markData[1] ? markData[1].split(',').map(x => { return parseInt(x) }) : [])
                        : [];
                } catch {
                    this.markFold = [];
                }
            }
            // if (this.setting.treeCacheKey) {
            //     localforage.getItem(this.setting.treeCacheKey).then(function (v) {
            //         self.markFold = v && v.markFold ? v.markFold : [];
            //     });
            // }
        }
        /**
         * 树结构根据显示排序
         */
        sortTreeNode(isResort) {
            const self = this;
            const addSortNodes = function (nodes) {
                if (!nodes) { return }
                for (let i = 0; i < nodes.length; i++) {
                    self.nodes.push(nodes[i]);
                    nodes[i].index = self.nodes.length - 1;
                    if (!isResort) {
                        nodes[i].children = self.getChildren(nodes[i]);
                    } else {
                        nodes[i].children.sort(function (a, b) {
                            return a.order - b.order;
                        })
                    }
                    addSortNodes(nodes[i].children);
                }
            };
            this.nodes = [];
            if (!isResort) {
                this.children = this.getChildren();
            } else {
                this.children.sort(function (a, b) {
                    return a.order - b.order;
                })
            }
            addSortNodes(this.children);
        }
        /**
         * 加载数据(初始化), 并给数据添加部分树结构必须数据
         * @param datas
         */
        loadDatas(datas) {
            self = this;
            // 清空旧数据
            this.items = {};
            this.nodes = [];
            this.datas = [];
            this.children = [];
            // 加载全部数据
            datas.sort(function (a, b) {
                return a.level - b.level;
            });
            for (const data of datas) {
                const keyName = itemsPre + data[this.setting.id];
                if (!this.items[keyName]) {
                    const item = JSON.parse(JSON.stringify(data));
                    item.children = [];
                    item.expanded = true;
                    item.visible = true;
                    this.items[keyName] = item;
                    this.datas.push(item);
                    if (item[setting.pid] === setting.rootId) {
                        this.children.push(item);
                    } else {
                        const parent = this.getParent(item);
                        if (parent) {
                            parent.children.push(item);
                        }
                    }
                }
            }
            this.children.sort(function (a, b) {
                return a.order - b.order;
            });
            this.sortTreeNode(true);
            if (this.setting.autoExpand >= 0) this.expandByLevel(this.setting.autoExpand);
            if (this.setting.markFoldKey) this.expandByCustom(function (node) {
                return self.markFold.indexOf(node[self.setting.id]) === -1;
            });
        }

        getItemsByIndex(index) {
            return this.nodes[index];
        }
        /**
         * 根据id获取树结构节点数据
         * @param {Number} id
         * @returns {Object}
         */
        getItems(id) {
            return this.items[itemsPre + id];
        };
        getNodeIndex(node) {
            return this.nodes.indexOf(node);
        }
        /**
         * 查找node的parent
         * @param {Object} node
         * @returns {Object}
         */
        getParent(node) {
            return this.getItems(node[this.setting.pid]);
        };
        getAllParents(node) {
            const parents = [];
            if (node.full_path && node.full_path !== '') {
                const parentIds = node.full_path.split('-');
                for (const id of parentIds) {
                    if (id !== node[this.setting.id]) {
                        parents.push(this.getItems(id));
                    }
                }
            } else {
                let vP = this.getParent(node);
                while (vP) {
                    parents.push(vP);
                    vP = this.getParent(vP);
                }
            }
            return parents;
        }

        /**
         * 查找node的前兄弟节点
         * @param node
         * @returns {*}
         */
        getPreSiblingNode(node) {
            if (!node) return null;
            const parent = this.getParent(node);
            const siblings = parent ? parent.children : this.children;
            const index = siblings.indexOf(node);
            return (index > 0) ? siblings[index - 1] : null;
        }
        /**
         * 查找node的后兄弟节点
         * @param node
         * @returns {*}
         */
        getNextSiblingNode(node) {
            const parent = this.getParent(node);
            const siblings = parent ? parent.children : this.children;
            const index = siblings.indexOf(node);
            if (index >= 0 && index < siblings.length - 1) {
                return siblings[index + 1];
            } else {
                return null;
            }
        }

        /**
         * 根据path查找完整节点
         * @param {Number} path
         */
        getFullPathNodes(path) {
            const self = this, ids = path.split('-');
            if (ids.length > 0) {
                return this.nodes.filter((x) => {
                    return ids.indexOf('' + x[self.setting.id]) >= 0;
                });
            } else {
                return [];
            }
        };
        /**
         * 查询node的已下载子节点
         * @param {Object} node
         * @returns {Array}
         */
        getChildren(node) {
            const setting = this.setting;
            const pid = node ? node[setting.id] : setting.rootId;
            const children = this.datas.filter(function (x) {
                return x[setting.pid] === pid;
            });
            children.sort(function (a, b) {
                return a.order - b.order;
            });
            return children;
        };

        /**
         * 递归方式 查询node的已下载的全部后代 (兼容full_path不存在的情况)
         * @param node
         * @returns {*}
         * @private
         */
        _recursiveGetPosterity(node) {
            let posterity = node.children;
            for (const c of node.children) {
                posterity = posterity.concat(this._recursiveGetPosterity(c));
            }
            return posterity;
        };
        /**
         * 查询node的已下载的全部后代
         * @param {Object} node
         * @returns {Array}
         */
        getPosterity(node) {
            const self = this;
            let posterity;
            if (node.full_path !== '') {
                const reg = new RegExp('^' + node.full_path + '-');
                posterity = this.datas.filter(function (x) {
                    return reg.test(x.full_path);
                });
            } else {
                posterity = this._recursiveGetPosterity(node);
            }
            posterity.sort(function (x, y) {
                return self.getNodeIndex(x) - self.getNodeIndex(y);
            });
            return posterity;
        };
        /**
         * 查询node是否是父节点的最后一个子节点
         * @param {Object} node
         * @returns {boolean}
         */
        isLastSibling(node) {
            const siblings = this.getChildren(this.getParent(node));
            return (siblings && siblings.length > 0) ? node.order === siblings[siblings.length - 1].order : false;
        };

        /**
         * 提取节点key和索引数据
         * @param {Object} node - 节点
         * @returns {key}
         */
        getNodeKeyData(node) {
            const data = {};
            for (const key of this.setting.keys) {
                data[key] = node[key];
            }
            return data;
        };
        /**
         * 得到树结构构成id
         * @param node
         * @returns {*}
         */
        getNodeKey(node) {
            return node[this.setting.id];
        };

        _markFold(node) {
            if (!this.setting.markFoldKey || !this.setting.markFoldSubKey) return;
            // if (!this.setting.treeCacheKey) return;

            if (!node.expanded) {
                if (this.markFold.indexOf(node[this.setting.id]) === -1) this.markFold.push(node[this.setting.id]);
            } else {
                if (this.markFold.indexOf(node[this.setting.id]) >= 0) this.markFold.splice(this.markFold.indexOf(node[this.setting.id]), 1);
            }
        }
        _saveMarkFold() {
            if (this.setting.markFoldKey && this.setting.markFoldSubKey) {
                setLocalCache(this.setting.markFoldKey, this.setting.markFoldSubKey + '|' + this.markFold.join(','));
            }
            // if (this.setting.treeCacheKey) {
            //     localforage.setItem(this.setting.treeCacheKey, {
            //         markFold: this.markFold,
            //         time: new Date(),
            //     });
            // }
        }
        /**
         * 刷新子节点是否可见
         * @param {Object} node
         * @private
         */
        _refreshChildrenVisible(node) {
            if (!node.children) {
                node.children = this.getChildren(node);
            }
            if (node.children && node.children.length > 0) {
                for (const child of node.children) {
                    child.visible = node.expanded && node.visible;
                    this._refreshChildrenVisible(child);
                }
            }
        };
        /**
         * 设置节点是否展开, 并控制子节点可见
         * @param {Object} node
         * @param {Boolean} expanded
         */
        setExpanded(node, expanded) {
            node.expanded = expanded;
            this._markFold(node);
            this._refreshChildrenVisible(node);
            this._saveMarkFold();
        };
        /**
         * 递归 设置节点展开状态
         * @param {Array} nodes - 需要设置状态的节点
         * @param {Object} parent - nodes的父节点
         * @param {Function} checkFun - 判断节点展开状态的方法
         * @private
         */
        _recursiveExpand(nodes, parent, checkFun) {
            for (const node of nodes) {
                const expanded = checkFun(node);
                if (node.expanded !== expanded) {
                    node.expanded = expanded;
                    this._markFold(node);
                }
                node.visible = parent ? (parent.expanded && parent.visible) : true;
                this._recursiveExpand(node.children, node, checkFun);
            }
        }
        /**
         * 自定义展开规则
         * @param checkFun
         */
        expandByCustom(checkFun) {
            this._recursiveExpand(this.children, null, checkFun);
            this._saveMarkFold();
        }
        /**
         * 展开到第几层
         * @param {Number} level - 展开层数
         */
        expandByLevel(level) {
            this.expandByCustom(function (n) {
                return n.level < level;
            });
        }

        /**
         * 自动展开节点node
         * @param node
         * @returns {*}
         */
        autoExpandNode(node) {
            const parents = this.getAllParents(node);
            const reload = [];
            for (const p of parents) {
                if (!p.expanded) {
                    reload.push(p);
                    this.setExpanded(p, true);
                }
            }
            return reload;
        }

        /**
         * 加载数据(动态)，只加载不同部分
         * @param {Array} datas
         * @return {Array} 加载到树的数据
         * @privateA
         */
        _updateData(datas) {
            datas = datas instanceof Array ? datas : [datas];
            let loadedData = [];
            for (const data of datas) {
                let node = this.getItems(data[this.setting.id]);
                if (node) {
                    for (const prop in data) {
                        if (data[prop] !== undefined && data[prop] !== node[prop]) {
                            if (prop === this.setting.pid) {
                                loadedData.push(this.getItems(node[this.setting.pid]));
                                loadedData.push(this.getItems(data[this.setting.pid]));
                            }
                            if (prop === this.setting.order) {
                                loadedData = loadedData.concat(this.getPosterity(node));
                            }
                            node[prop] = data[prop];
                        }
                    }
                    loadedData.push(node);
                }
            }
            loadedData = _.uniq(loadedData);
            for (const node of loadedData) {
                if (node) {
                    node.children = this.getChildren(node);
                    node.expanded = node.children.length === 0 ? true : node.children[0].visible;
                } else {
                    this.children = this.getChildren(null);
                }
            }
            this.sortTreeNode(true);
            return loadedData;
        };
        /**
         * 加载数据(动态)，只加载不同部分
         * @param {Array} datas
         * @return {Array} 加载到树的数据
         * @privateA
         */
        _loadData(datas) {
            datas = datas instanceof Array ? datas : [datas];
            const loadedData = [], resortData = [];
            for (const data of datas) {
                let node = this.getItems(data[this.setting.id]);
                if (node) {
                    const parent = this.getItems(node[this.setting.pid]);
                    for (const prop in data) {
                        if (data[prop] !== undefined && data[prop] !== node[prop]) {
                            node[prop] = data[prop];
                            if (parent && resortData.indexOf(parent) === -1) {
                                resortData.push(parent);
                            }
                        }
                    }
                    loadedData.push(node);
                } else {
                    const keyName = itemsPre + data[this.setting.id];
                    const node = JSON.parse(JSON.stringify(data));
                    this.items[keyName] = node;
                    this.datas.push(node);
                    node.expanded = true;
                    node.visible = true;
                    loadedData.push(node);
                    if (resortData.indexOf(node) === -1) {
                        resortData.push(node);
                    }
                    const parent = this.getItems(node[this.setting.pid]);
                    if (parent && resortData.indexOf(parent) === -1) {
                        resortData.push(parent);
                    } else {
                        resortData.push(this.setting.rootId);
                    }
                }
            }
            for (const node of resortData) {
                if (node && node !== this.setting.rootId) {
                    node.children = this.getChildren(node);
                } else {
                    this.children = this.getChildren(null);
                }
            }
            this.sortTreeNode(true);
            for (const node of loadedData) {
                if (!node.expanded) {
                    this.setExpanded(node, true);
                }
            }
            return loadedData;
        };
        /**
         * 清理数据(动态)
         * @param datas
         * @private
         */
        _freeData(datas) {
            datas = datas instanceof Array ? datas : [datas];
            const freeDatas = [];
            const removeArrayData = function (array, data) {
                const index = array.indexOf(data);
                array.splice(index, 1);
            };
            for (const data of datas) {
                const node = this.getItems(data[this.setting.id]);
                if (node) {
                    freeDatas.push(node);
                    node.deleteIndex = this.nodes.indexOf(node);
                    delete this.items[itemsPre + node[this.setting.id]];
                    if (node[this.setting.pid] !== this.setting.rootId) {
                        const parent = this.getItems(node[this.setting.pid]);
                        if (parent) {
                            removeArrayData(parent.children, node);
                        }
                    } else {
                        removeArrayData(this.children, node);
                    }
                    removeArrayData(this.datas, node);
                }
            }
            for (const node of freeDatas) {
                removeArrayData(this.nodes, node);
            }
            return freeDatas;
        };
        /**
         * 加载需展开的数据
         * @param {Array} datas
         * @returns {Array}
         * @private
         */
        _loadExpandData(datas) {
            datas = datas instanceof Array ? datas : [datas];
            const loadedData = [], existData = [], expandData = [], resortData = [];
            for (const data of datas) {
                let node = this.getItems(data[this.setting.id]);
                if (node) {
                    existData.push(node);
                } else {
                    const keyName = itemsPre + data[this.setting.id];
                    const node = JSON.parse(JSON.stringify(data));
                    this.items[keyName] = node;
                    this.datas.push(node);
                    node.expanded = false;
                    node.visible = true;
                    loadedData.push(node);

                    if (resortData.indexOf(node) === -1) {
                        resortData.push(node);
                    }
                    const parent = this.getItems(node[this.setting.pid]);
                    if (parent && resortData.indexOf(parent) === -1) {
                        resortData.push(parent);
                    }
                }
            }
            for (const node of resortData) {
                node.children = this.getChildren(node);
            }
            this.sortTreeNode(true);
            for (const node of loadedData) {
                if (!node.expanded) {
                    this.setExpanded(node, true);
                }
            }
            for (const node of existData) {
                const parent = this.getItems(node[this.setting.pid]);
                if (expandData.indexOf(parent) === -1) {
                    expandData.push(parent);
                    if (!parent.expanded) {
                        this.setExpanded(parent, true);
                    }
                }
                if (!node.expanded) {
                    this.setExpanded(node, true);
                }
            }
            return [loadedData, expandData];
        };

        /**
         * 因为提交其他数据，引起的树结构数据更新，调用该方法
         *
         * @param data - 更新的数据 {update, create, delete}
         * @returns {{}}
         */
        loadPostData(data) {
            const result = {};
            if (data.delete) {
                result.delete = this._freeData(data.delete);
            }
            if (data.create) {
                result.create = this._loadData(data.create);
            }
            if (data.update) {
                result.update = this._updateData(data.update);
            }
            return result;
        }
        /**
         * 加载子节点
         * @param {Object} node
         * @param {function} callback
         */
        loadChildren(node, callback) {
            if (this.setting.url !== '') {
                const self = this;
                postData(this.setting.url, { postType: 'load-child', id: this.getNodeKeyData(node) }, function (data) {
                    self._loadData(data);
                    callback();
                });
            }
        };

        _getDefaultNodeData(node) {
            const result = {};
            for (const prop in node) {
                if (['children', 'visible', 'expanded'].indexOf(prop) >= 0) continue;
                result[prop] = node[prop];
            }
            return result;
        }

        getDefaultData(node) {
            if (node instanceof Array) {
                const arr = [];
                for (const n of node) {
                    arr.push(this._getDefaultNodeData(n));
                }
                return arr;
            } else {
                this._getDefaultNodeData(node);
            }
        }
    }

    class MeasureTree extends BaseTree {
        addData(datas) {
            const loadedData = [];
            for (const data of datas) {
                let node = this.getItems(data[this.setting.id]);
                if (node) {
                    for (const prop in data) {
                        if (data[prop] !== undefined) {
                            node[prop] = data[prop];
                        }
                    }
                    loadedData.push(node);
                } else {
                    const keyName = itemsPre + data[this.setting.id];
                    const node = JSON.parse(JSON.stringify(data));
                    this.items[keyName] = node;
                    this.datas.push(node);
                    node.expanded = false;
                    node.visible = true;
                    loadedData.push(node);
                }
            }
            this.sortTreeNode();
            for (const node of loadedData) {
                const children = node.children;
                if (!node.expanded && children.length > 0) {
                    node.expanded = true;
                    this._refreshChildrenVisible(node);
                }
            }
            return loadedData;
        }
        removeData(datas) {
            datas.sort(function (a, b) {
                return b.level - a.level;
            });
            const removeArrayData = function (array, data) {
                const index = array.indexOf(data);
                array.splice(index, 1);
            };
            for (const data of datas) {
                const node = this.getItems(data[this.setting.id]);
                if (node && this.getChildren(node).length === 0) {
                    delete this.items[itemsPre + node[this.setting.id]];
                    if (node[this.setting.pid] !== this.setting.rootId) {
                        const parent = this.items[itemsPre + node[this.setting.pid]];
                        removeArrayData(parent.children, node);
                    }
                    removeArrayData(this.datas, node);
                    removeArrayData(this.nodes, node);
                }
            }
        };
        loadLeafData(data) {
            const datas = data instanceof Array ? data : [data];
            for (const d of datas) {
                let node = this.getItems(d[this.setting.id]);
                if (node && node.is_leaf) {
                    for (const prop in d) {
                        if (data[prop] !== undefined) {
                            node[prop] = d[prop];
                        }
                    }
                }
            }
        };
    }

    class FxTree extends BaseTree {

        /**
         * 检查节点是否是最底层项目节
         * @param node
         * @returns {boolean}
         */
        isLeafXmj(node) {
            if (node.b_code && node.b_code !== '') {
                return false;
            }
            for (const child of node.children) {
                if (!child.b_code || child.b_code === '') {
                    return false;
                }
            }
            return true;
        }

        /**
         * 查询最底层项目节(本身或父项)
         * @param {Object} node - 查询节点
         * @returns {Object}
         */
        getLeafXmjParent(node) {
            let parent = node;
            while (parent) {
                if (this.isLeafXmj(parent)) {
                    return parent;
                } else {
                    parent = this.getParent(parent);
                }
            }
            return null;
        }

        /**
         * 展开至最底层项目节
         */
        expandToLeafXmj() {
            const self = this;
            this.expandByCustom(function (node) {
                if (node.b_code && node.b_code !== '') {
                    return false;
                } else {
                    return !self.isLeafXmj(node);
                }
            })
        }

        /**
         * 展开至计算项
         */
        expandByCalcFields() {
            const self = this;
            this.expandByCustom(function (node) {
                for (const field of self.setting.calcFields) {
                    if (node[field]) {
                        return true;
                    }
                }
                return false;
            })
        }
    }

    class LedgerTree extends FxTree {
        /**
         *
         * @param parent
         * @param node
         * @private
         */
        _getNodesParents(parents, nodes) {
            for (const node of nodes) {
                const parent = this.getParent(node);
                if (parent) {
                    const paths = this.getFullPathNodes(parent.full_path);
                    for (const p of paths) {
                        if (parents.indexOf(p) === -1) {
                            parents.push(p);
                        }
                    }
                }
                if (this.getItems(node.ledger_id) && node.children.length > 0) {
                    parents.push(node);
                }
            }
        }

        _getReCalcNodes(reCalcNodes, nodes) {
            for (const node of nodes) {
                const parent = this.getParent(node);
                if (parent) {
                    const paths = this.getFullPathNodes(parent.full_path);
                    for (const p of paths) {
                        if (reCalcNodes.indexOf(p) === -1) {
                            reCalcNodes.push(p);
                        }
                    }
                }
                // 最底层项目节，也需要计算
                //if (this.getItems(node.ledger_id) && node.children.length > 0) {
                reCalcNodes.push(node);
                //}
            }
        }

        /**
         * 因为提交其他数据，引起的树结构数据更新，调用该方法
         *
         * @param data - 更新的数据 {update, create, delete}
         * @returns {{}}
         */
        loadPostData(data) {
            const result = {}, reCalcNodes = [];
            if (!data) return result;
            if (data.delete) {
                result.delete = this._freeData(data.delete);
                this._getReCalcNodes(reCalcNodes, result.delete);
            }
            if (data.create) {
                result.create = this._loadData(data.create);
                this._getReCalcNodes(reCalcNodes, result.create);
            }
            if (data.update) {
                result.update = this._updateData(data.update);
                this._getReCalcNodes(reCalcNodes, result.update);
            }
            reCalcNodes.sort((a, b) => {
                return b.level - a.level;
            });
            for (const node of reCalcNodes) {
                treeCalc.calculateNode(this, node, this.setting.calcFields, this.setting.calcFun);
            }
            result.update = result.update ? result.update.concat(reCalcNodes) : reCalcNodes;
            return result;
        }
    }

    class ReviseTree extends LedgerTree {
        checkNodeUsed(node, pos) {
            if (node.children && node.children.length > 0) {
                for (const child of node.children) {
                    const used = this.checkNodeUsed(child, pos);
                    if (used) return used;
                }
            } else {
                if (node.used) return node.used;
                const posRange = pos.getLedgerPos(node.id);
                if (posRange && posRange.length > 0) {
                    for (const p of posRange) {
                        if (p.used) return p.used;
                    }
                }
            }
            return false;
        }
    }

    class StageTree extends FxTree {
        /**
         * 构造函数
         */
        constructor(setting) {
            super(setting);
            // stage关联索引
            this.stageItems = {};
        }
        /**
         * 加载数据(初始化), 并给数据添加部分树结构必须数据
         * @param datas
         */
        loadDatas(datas) {
            super.loadDatas(datas);
            // 清空旧数据
            this.stageItems = {};
            // 加载全部数据
            for (const data of this.datas) {
                const keyName = itemsPre + data[this.setting.stageId];
                this.stageItems[keyName] = data;
            }
        }
        getStageItems(id) {
            return this.stageItems[itemsPre + id];
        }

        loadStageData(datas, fieldPre, fields) {
            datas = datas instanceof Array ? datas : [datas];
            const loadedData = [];
            for (const data of datas) {
                let node = this.getStageItems(data.lid);
                if (node) {
                    for (const prop of fields) {
                        if (data[prop] !== undefined) {
                            node[fieldPre + prop] = data[prop];
                        }
                    }
                    loadedData.push(node);
                }
            }
        }

        loadPreStageData(datas) {
            this.loadStageData(datas, 'pre_', this.setting.updateFields);
        }

        loadCurStageData(datas) {
            this.loadStageData(datas, '', this.setting.updateFields);
        }

        /**
         * 加载数据(动态)，只加载不同部分
         * @param {Array} datas
         * @return {Array} 加载到树的数据
         * @privateA
         */
        _updateData(datas) {
            datas = datas instanceof Array ? datas : [datas];
            let loadedData = [];
            for (const data of datas) {
                let node = this.getItems(data[this.setting.id]);
                if (node) {
                    for (const prop in data) {
                        if (prop === this.setting.pid && data[prop] !== node[prop]) {

                        }
                        if (data[prop] !== undefined && data[prop] !== node[prop]) {
                            if (prop === this.setting.pid) {
                                loadedData.push(this.getItems(node[this.setting.pid]));
                                loadedData.push(this.getItems(data[this.setting.pid]));
                            }
                            node[prop] = data[prop];
                        }
                    }
                    loadedData.push(node);
                }
            }
            loadedData = _.uniq(loadedData);
            for (const node of loadedData) {
                node.children = this.getChildren(node);
                node.expanded = node.children.length === 0 ? true : node.children[0].visible;
            }
            this.sortTreeNode(true);
            return loadedData;
        };

        /**
         * 加载数据(动态)，只加载不同部分
         * @param {Array} datas
         * @return {Array} 加载到树的数据
         * @privateA
         */
        _updateStageData(datas) {
            datas = datas instanceof Array ? datas : [datas];
            const loadedData = [];
            for (const data of datas) {
                let node = this.getStageItems(data.lid);
                if (node) {
                    for (const prop of this.setting.updateFields) {
                        if (data[prop] !== undefined) {
                            node[prop] = data[prop];
                        }
                    }
                    loadedData.push(node);
                }
            }
            return loadedData;
        };
        /**
         *
         * @param parent
         * @param node
         * @private
         */
        _getNodesParents(parents, nodes) {
            for (const node of nodes) {
                const parent = this.getParent(node);
                if (parent) {
                    const paths = this.getFullPathNodes(parent.full_path);
                    for (const p of paths) {
                        if (parents.indexOf(p) === -1) {
                            parents.push(p);
                        }
                    }
                }
                if (node.children && node.children.length > 0) {
                    parents.push(node);
                }
            }
        }

        _updateDgnData(datas) {
            datas = datas instanceof Array ? datas : [datas];
            let loadedData = [];
            for (const data of datas) {
                let node = this.getStageItems(data.id);
                if (node) {
                    for (const prop in data) {
                        if (data[prop] !== undefined && data[prop] !== node[prop]) {
                            node[prop] = data[prop];
                        }
                    }
                    loadedData.push(node);
                }
            }
            return loadedData;
        }

        /**
         * 提交数据至后端，返回的前端树结构应刷新的部分
         * StageTree仅有更新CurStage部分，不需要增删
         *
         * @param data - 需要更新的数据
         * @returns {Array} - 界面需要刷新的数据
         */
        loadPostStageData(data) {
            let result, parents = [];
            if (data.bills) {
                result = this._updateData(data.bills);
                this._getNodesParents(parents, result);
            }
            if (data.curStageData) {
                result = this._updateStageData(data.curStageData);
                this._getNodesParents(parents, result);
            }
            if (data.dgn) {
                const dgnResult = this._updateDgnData(data.dgn);
                result = result ? result.concat(dgnResult) : dgnResult;
            }
            result = result ? result.concat(parents) : parents;
            result.sort((a, b) => {
                return b.level - a.level;
            });
            for (const node of result) {
                treeCalc.calculateNode(this, node);
            }
            return result;
        }
    }

    class MasterTree extends FxTree {
        /**
         * 构造函数
         */
        constructor(setting) {
            super(setting);
            // 关联索引
            this.masterItems = {};
        }
        /**
         * 加载数据(初始化), 并给数据添加部分树结构必须数据
         * @param datas
         */
        loadDatas(datas) {
            super.loadDatas(datas);
            // 清空旧数据
            this.masterItems = {};
            // minor数据缓存
            this.minorData = {};
            // 加载全部数据
            for (const data of this.datas) {
                const keyName = itemsPre + data[this.setting.masterId];
                this.masterItems[keyName] = data;
            }
        }

        /**
         * 根据关联id，查找节点
         * @param id
         * @returns {*}
         */
        getMasterItems(id) {
            return this.masterItems[itemsPre + id];
        }
        /**
         * 加载关联数据
         *
         * @param {Array|Object}datas - 需要关联的数据
         * @param {String} fieldPre - 关联字段前缀（关联结果）
         * @param {Array} fields - 关联字段
         * @returns {Array}
         */
        loadMinorData(datas, fieldSuf, fields, calcFields) {
            for (const cf of calcFields) {
                this.setting.calcFields.push(cf + fieldSuf);
            }
            if (!datas) return;
            datas = datas instanceof Array ? datas : [datas];
            this.minorData[fieldSuf] = datas;
            const loadedData = [];
            for (const data of datas) {
                let node = this.getMasterItems(data[this.setting.minorId]);
                if (node) {
                    for (const prop of fields) {
                        if (data[prop] !== undefined) {
                            node[prop + fieldSuf] = data[prop];
                        }
                    }
                    loadedData.push(node);
                }
            }
            return loadedData;
        }
    }

    class FilterTree extends BaseTree {
        addData(data, fields) {
            const item = {};
            for (const prop in data) {
                if (fields.indexOf(prop) >= 0) {
                    item[prop] = data[prop];
                }
            }
            const keyName = itemsPre + item[this.setting.id];
            if (!this.items[keyName]) {
                item.children = [];
                item.is_leaf = true;
                item.expanded = true;
                item.visible = true;
                this.items[keyName] = item;
                this.datas.push(item);
                if (item[setting.pid] === setting.rootId) {
                    this.children.push(item);
                } else {
                    const parent = this.getParent(item);
                    if (parent) {
                        parent.is_leaf = false;
                        parent.children.push(item);
                    }
                }
            } else {
                return this.items[keyName];
            }
            return item;
        }
    }

    class GatherTree extends BaseTree {
        clearDatas() {
            this.items = {};
            this.nodes = [];
            this.datas = [];
            this.children = [];
        }

        get newId() {
            if (!this._maxId) {
                this._maxId = 0;
            }
            this._maxId++;
            return this._maxId;
        }

        addNode(data, parent) {
            data[this.setting.pid] = parent ? parent[this.setting.id] : this.setting.rootId;
            let item = _.find(this.items, data);
            if (item) return item;

            item = data;
            item[this.setting.id] = this.newId;
            const keyName = itemsPre + item[this.setting.id];
            item.children = [];
            item.is_leaf = true;
            item.expanded = true;
            item.visible = true;
            this.items[keyName] = item;
            this.datas.push(item);
            if (parent) {
                item[this.setting.fullPath] = parent[this.setting.fullPath] + '-' + item[this.setting.id];
                item[this.setting.level] = parent[this.setting.level] + 1;
                item[this.setting.order] = parent.children.length + 1;
                parent.is_leaf = false;
                parent.children.push(item);
            } else {
                item[this.setting.fullPath] = '' + item[this.setting.id];
                item[this.setting.level] = 1;
                item[this.setting.order] = this.children.length + 1;
                this.children.push(item);
            }
            return item;
        }

        sortTreeNodeCustom(field, fun, isResort) {
            const self = this;
            const sortNodes = function (nodes) {
                nodes.sort(function (a, b) {
                    return fun(a[field], b[field]);
                });
                for (const [i, node] of nodes.entries()) {
                    node.order = i + 1;
                }
            };
            const addSortNodes = function (nodes) {
                if (!nodes) { return }
                for (let i = 0; i < nodes.length; i++) {
                    self.nodes.push(nodes[i]);
                    nodes[i].index = self.nodes.length - 1;
                    if (!isResort) {
                        nodes[i].children = self.getChildren(nodes[i]);
                    }
                    sortNodes(nodes[i].children);
                    addSortNodes(nodes[i].children);
                }
            };
            this.nodes = [];
            if (!isResort) {
                this.children = this.getChildren();
            }
            sortNodes(this.children);
            addSortNodes(this.children);
        }
    }

    class CompareTree extends FxTree {

        constructor(setting) {
            super(setting);
            this._newId = 1;
        }

        get newId() {
            return this._newId++;
        }

        loadCompareNode(node, parent, loadFun) {
            const siblings = parent ? parent.children : this.children;
            let cur = siblings.find(function (x) {
                return node.b_code
                    ? x.b_code === node.b_code && x.name === node.name && x.unit === node.unit && x.unit_price === node.unit_price
                    : x.code === node.code && x.name === node.name;
            });
            if (!cur) {
                const id = this.newId;
                cur = {
                    id: id,
                    pid: parent ? parent.id : this.setting.rootId,
                    full_path: parent ? parent.full_path + '-' + id : '' + id,
                    level: parent ? parent.level + 1 : 1,
                    order: siblings.length + 1,
                    children: [],
                    code: node.code, b_code: node.b_code, name: node.name,
                    unit: node.unit, unit_price: node.unit_price,
                };
                siblings.push(cur);
                this.datas.push(cur);
            }
            loadFun(cur, node);
            for (const c of node.children) {
                this.loadCompareNode(c, cur, loadFun);
            }
        }
    
        generateSortNodes() {
            const self = this;
            const addSortNode = function (node) {
                self.nodes.push(node);
                for (const c of node.children) {
                    addSortNode(c);
                }
            }
            this.nodes = [];
            for (const n of this.children) {
                addSortNode(n);
            }
        }
    
        loadCompareTree(data, loadFun) {
            for (const c of data.billsTree.children) {
                this.loadCompareNode(c, null, loadFun);
            }
            // todo load Pos Data;
        }
    
        calculateDiffer() {
            if (this.setting.calcDiffer) {
                for (const d of this.datas) {
                    this.setting.calcDiffer(d);
                }
            }
        }
    
        loadCompareData(data1, data2) {
            this.loadCompareTree(data1, this.setting.loadInfo1);
            this.loadCompareTree(data2, this.setting.loadInfo2);
            for (const d of this.datas) {
                d.is_leaf = d.children.length === 0;
                d.expanded = true;
                d.visible = true;
                this.items[itemsPre + d[this.setting.id]] = d;
            }
            this.generateSortNodes();
            this.calculateDiffer();
        }
    }

    class TreeGatherTree extends FxTree {

        constructor(setting) {
            super(setting);
            this._newId = 1;
        }

        get newId() {
            return this._newId++;
        }

        loadGatherNode(node, parent, index, loadFun) {
            const siblings = parent ? parent.children : this.children;
            let cur = siblings.find(function (x) {
                return node.b_code
                    ? x.b_code === node.b_code && x.name === node.name && x.unit === node.unit && x.unit_price === node.unit_price
                    : x.code === node.code && x.name === node.name;
            });
            if (!cur) {
                const id = this.newId;
                cur = {
                    id: id,
                    pid: parent ? parent.id : this.setting.rootId,
                    full_path: parent ? parent.full_path + '-' + id : '' + id,
                    level: parent ? parent.level + 1 : 1,
                    order: siblings.length + 1,
                    children: [],
                    code: node.code, b_code: node.b_code, name: node.name,
                    unit: node.unit, unit_price: node.unit_price,
                };
                siblings.push(cur);
                this.datas.push(cur);
            }
            loadFun(cur, node, index);
            for (const c of node.children) {
                this.loadGatherNode(c, cur, index, loadFun);
            }
        }

        generateSortNodes() {
            const self = this;
            const addSortNode = function (node) {
                self.nodes.push(node);
                for (const c of node.children) {
                    addSortNode(c);
                }
            }
            this.nodes = [];
            for (const n of this.children) {
                addSortNode(n);
            }
        }

        loadGatherTree(data, index, loadFun) {
            for (const c of data.billsTree.children) {
                this.loadGatherNode(c, null, index, loadFun);
            }
            // todo load Pos Data;
        }

        calculateSum() {
            if (this.setting.calcSum) {
                for (const d of this.datas) {
                    this.setting.calcSum(d, this.count);
                }
            }
        }

        loadGatherData(datas) {
            this.count = datas.length;
            for (const [i, data] of datas.entries()) {
                this.loadGatherTree(data, i+1, this.setting.loadInfo);
            }
            for (const d of this.datas) {
                d.is_leaf = d.children.length === 0;
                d.expanded = true;
                d.visible = true;
                this.items[itemsPre + d[this.setting.id]] = d;
            }
            this.generateSortNodes();
            this.calculateSum();
        }
    }

    if (type === 'base') {
        return new BaseTree(setting);
    } else if (type === 'fx') {
        return new FxTree(setting);
    } else if (type === 'stage') {
        return new StageTree(setting);
    } else if (type === 'ledger') {
        return new LedgerTree(setting);
    } else if (type === 'revise') {
        return new ReviseTree(setting);
    } else if (type === 'measure') {
        return new MeasureTree(setting);
    } else if (type === 'master') {
        return new MasterTree(setting);
    } else if (type === 'filter') {
        return new FilterTree(setting);
    } else if (type === 'gather') {
        return new GatherTree(setting);
    } else if (type === 'compare') {
        return new CompareTree(setting);
    } else if (type === 'tree-gather') {
        return new TreeGatherTree(setting);
    }
};

const treeCalc = {
    mapTreeNode: function (tree) {
        let map = {}, maxLevel = 0;
        for (const node of tree.nodes) {
            let levelArr = map[node.level];
            if (!levelArr) {
                levelArr = [];
                map[node.level] = levelArr;
            }
            if (node.level > maxLevel) {
                maxLevel = node.level;
            }
            levelArr.push(node);
        }
        return [maxLevel, map];
    },
    getMaxLevel: function (tree) {
        return Math.max.apply(Math, tree.datas.map(function (o) { return o.level }));
    },
    calculateNode: function (tree, node) {
        if (node.children && node.children.length > 0) {
            const gather = node.children.reduce(function (rst, x) {
                const result = {};
                for (const cf of tree.setting.calcFields) {
                    result[cf] = ZhCalc.add(rst[cf], x[cf]);
                }
                return result;
            });
            // 汇总子项
            for (const cf of tree.setting.calcFields) {
                if (gather[cf]) {
                    node[cf] = gather[cf];
                } else {
                    node[cf] = null;
                }
            }
        }
        // 自身运算
        if (tree.setting.calcFun) {
            tree.setting.calcFun(node);
        }
    },
    calculateLevelNode: function (tree, level) {
        const nodes = tree.datas.filter((n) => { return n.level === level });
        for (const node of nodes) {
            this.calculateNode(tree, node);
        }
    },
    calculateAll: function (tree) {
        const [maxLevel, levelMap] = this.mapTreeNode(tree);
        for (let i = maxLevel; i >= 0; i--) {
            const levelNodes = levelMap[i];
            if (levelNodes && levelNodes.length > 0) {
                for (const node of levelNodes) {
                    this.calculateNode(tree, node);
                }
            }
        }
    },
    calculateParent: function (tree, node) {
        const nodes = tree.getFullPathNodes(node.full_path);
        nodes.sort((a, b) => {
            return b.level - a.level;
        });
        for (const n of nodes) {
            this.calculateNode(tree, n);
        }
        return nodes;
    }
};