'use strict';

/**
 *
 *
 * @author Mai
 * @date
 * @version
 */

const itemsPre = 'id_';

class baseTree {
    /**
     * 构造函数
     */
    constructor (ctx, setting) {
        this.ctx = ctx;
        // 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;
    }
    clear() {
        // 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 = [];
    }

    /**
     * 根据id获取树结构节点数据
     * @param {Number} id
     * @returns {Object}
     */
    getItems (id) {
        return this.items[itemsPre + id];
    };
    /**
     * 查找node的parent
     * @param {Object} node
     * @returns {Object}
     */
    getParent (node) {
        return this.getItems(node[this.setting.pid]);
    };
    /**
     * 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;
    };
    /**
     * 获取节点的 index
     * @param node
     * @returns {number}
     */
    getNodeSerialNo(node) {
        return this.nodes.indexOf(node);
    }

    /**
     * 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) {
        // 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[this.setting.pid] === this.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);
    }

    /**
     * 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.getNodeSerialNo(x) - self.getNodeSerialNo(y);
        });
        return posterity;
    };

    /**
     * 根据 字段名称 获取数据
     * @param fields
     * @returns {Array}
     */
    getDatas (fields) {
        const datas = [];
        for (const node of this.nodes) {
            if (node.b_code && node.b_code !== '') node.chapter = this.ctx.helper.getChapterCode(node.b_code);
            node.is_leaf = !node.children || node.children.length === 0;
            const data = {};
            for (const field of fields) {
                data[field] = node[field];
            }
            datas.push(data);
        }
        return datas;
    }
    /**
     * 排除 某些字段 获取数据
     * @param fields
     * @returns {Array}
     */
    getDatasWithout (fields, filter) {
        const datas = [];
        for (const node of this.nodes) {
            if (filter && filter(node)) {
                continue;
            }
            if (node.b_code && node.b_code !== '') node.chapter = this.ctx.helper.getChapterCode(node.b_code);
            node.is_leaf = !node.children || node.children.length === 0;
            const data = {};
            for (const field in node) {
                if (fields.indexOf(field) === -1) {
                    data[field] = node[field];
                }
            }
            datas.push(data);
        }
        return datas;
    }
    /**
     * 获取默认数据 剔除一些树结构需要的缓存数据
     * @returns {Array}
     */
    getDefaultDatas(filter) {
        return this.getDatasWithout(['expanded', 'visible', 'children', 'index'], filter);
    }

    _mapTreeNode () {
        let map = {}, maxLevel = 0;
        for (const node of this.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];
    }
    _calculateNode (node, fun) {
        const self = this;
        if (node.children && node.children.length > 0) {
            const gather = node.children.reduce(function (rst, x) {
                const result = {};
                for (const cf of self.setting.calcFields) {
                    result[cf] = self.ctx.helper.add(rst[cf], x[cf]);
                }
                return result;
            });
            // 汇总子项
            for (const cf of this.setting.calcFields) {
                if (gather[cf]) {
                    node[cf] = gather[cf];
                } else {
                    node[cf] = null;
                }
            }
        }
        // 自身运算
        if (fun) {
            fun(node);
        } else if (this.setting.calc) {
            this.setting.calc(node, this.ctx.helper);
        }
    }
    calculateAll(fun) {
        const [maxLevel, levelMap] = this._mapTreeNode();
        for (let i = maxLevel; i >= 0; i--) {
            const levelNodes = levelMap[i];
            if (levelNodes && levelNodes.length > 0) {
                for (const node of levelNodes) {
                    this._calculateNode(node, fun);
                }
            }
        }
    }
}

class billsTree 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;
    }
}

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[this.setting.pid] === this.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 filterGatherTree 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 = this.ctx.helper._.find(this.items, data);
        if (item) return item;

        item = data;
        item.drawing_code = [];
        item.memo = [];
        item.postil = [];
        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;
    }

    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);
        }
    }

    sortTreeNodeCustom(fun) {
        const sortNodes = function (nodes) {
            nodes.sort(fun);
            for (const [i, node] of nodes.entries()) {
                node.order = i + 1;
            }
            for (const node of nodes) {
                if (node.children && node.children.length > 1) {
                    sortNodes(node.children);
                }
            }
        };
        this.nodes = [];
        this.children = this.getChildren(null);
        sortNodes(this.children);
        this.generateSortNodes();
    }
}

class gatherTree extends baseTree {

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

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

    loadGatherNode(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.loadGatherNode(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);
        }
    }

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

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

class pos {
    /**
     * 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]);
        }
    }

    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(fun) {
        const calcFun = fun ? fun : this.setting.calc;
        if (!calcFun) return;

        for (const pos of this.datas) {
            calcFun(pos);
        }
    }

    getDatas () {
        return this.datas;
    }
}

class checkData {
    constructor(ctx) {
        this.ctx = ctx;
        this.checkBills = new billsTree(ctx, { id: 'ledger_id', pid: 'ledger_pid', order: 'order', level: 'level', rootId: -1 });
        this.checkPos = new pos({ id: 'id', ledgerId: 'lid' });
    }

    _check3f(data, limit, ratio) {
        if (limit === 0) {
            if (data.contract_tp || data.pre_contract_tp) return 1; // 违规
        }
        if (limit === 1) {
            if (ratio === 0) {
                if (!data.contract_tp && !data.pre_contract_tp) return 2; // 漏计
            } else {
                const tp = this.ctx.helper.mul(data.total_price, this.ctx.helper.div(ratio, 100, 4), this.ctx.tender.info.decimal.tp);
                const checkTp = this.ctx.helper.add(data.contract_tp, data.pre_contract_tp);
                if (tp > checkTp) return 1; // 违规
                if (tp < checkTp) return 2; // 漏计
            }
        }
        return 0; // 合法
    }
    _check3fQty(data, limit, ratio, unit) {
        if (limit === 0) {
            if (data.contract_qty || data.qc_qty || data.pre_contract_qty || data.pre_qc_qty) return 1; // 违规
        }
        if (limit === 1) {
            if (!ratio || ratio === 0) {
                if (!data.contract_qty && !data.qc_qty && !data.pre_contract_qty && !data.pre_qc_qty) return 2; // 漏计
            } else {
                const precision = this.ctx.helper.findPrecision(this.ctx.tender.info.precision, unit);
                const checkQty = this.ctx.helper.mul(data.quantity, this.ctx.helper.div(ratio, 100, 4), precision.value);
                const qty = this.ctx.helper.add(data.contract_qty, data.pre_contract_qty);
                if (qty > checkQty) return 1; // 违规
                if (qty < checkQty) return 2; // 漏计
            }
        }
        return 0; // 合法
    }

    _getRatio(type, status) {
        if (type === 'gxby') return null;
        const gs = this.ctx.session.sessionProject.dagl_status.find(x => { return x.value === status });
        return gs ? gs.ratio : null;
    }


    _getValid = function (type, status, limit) {
        if (limit) {
            const statusConst = type === 'gxby' ? this.ctx.session.sessionProject.gxby_status : this.ctx.session.sessionProject.dagl_status;
            const sc = statusConst.find(x => { return x.value === status; });
            return sc ? (sc.limit ? 1 : 0) : 0;
        } else {
            return -1;
        }
    };

    _checkLeafBills3fLimit(checkType, bills, result, checkInfo) {
        const over = [], lost = [];
        const posRange = this.checkPos.getLedgerPos(bills.id);
        if (posRange && posRange.length > 0) {
            for (const p of posRange) {
                const posCheckInfo = this.ctx.helper._.assign({}, checkInfo);
                for (const ct of checkType) {
                    if (p[ct + '_limit'] > 0) {
                        posCheckInfo[ct + '_limit'] = p[ct + '_limit'];
                    }
                }
                for (const ct of checkType) {
                    const checkResult = this._check3fQty(p, this._getValid(ct, p[ct + '_status'], posCheckInfo[ct + '_limit']), this._getRatio(ct, p[ct+'_status']), bills.unit);
                    if (checkResult === 1) {
                        if (over.indexOf(ct) === -1) over.push(ct);
                    }
                    if (checkResult === 2) {
                        if (lost.indexOf(ct) === -1) lost.push(ct);
                    }
                }
            }
        } else {
            for (const ct of checkType) {
                const checkResult = bills.is_tp
                    ? this._check3f(bills, this._getValid(ct, bills[ct + '_status'], checkInfo[ct + '_limit']), this._getRatio(ct, bills[ct+'_status']))
                    : this._check3fQty(bills, this._getValid(ct, bills[ct + '_status'], checkInfo[ct + '_limit']), this._getRatio(ct, bills[ct+'_status']), bills.unit);
                if (checkResult === 1) {
                    if (over.indexOf(ct) === -1) over.push(ct);
                }
                if (checkResult === 2) {
                    if (lost.indexOf(ct) === -1) lost.push(ct);
                }
            }
        }
        if (over.length + lost.length > 0) {
            for (const o of over) {
                result.error.push({
                    ledger_id: bills.ledger_id,
                    b_code: bills.b_code,
                    name: bills.name,
                    errorType: 's2b_over_' + o,
                });
            }
            for (const l of lost) {
                result.error.push({
                    ledger_id: bills.ledger_id,
                    b_code: bills.b_code,
                    name: bills.name,
                    errorType: 's2b_lost_' + l,
                });
            }
            result.source.bills.push(bills);
            if (posRange && posRange.length > 0) result.source.pos.push(...posRange);
        }
    }
    _recursiveCheckBills3fLimit(checkType, bills, result, parentCheckInfo) {
        const checkInfo = this.ctx.helper._.assign({}, parentCheckInfo);
        for (const ct of checkType) {
            if (bills[ct + '_limit'] > 0) {
                checkInfo[ct + '_limit'] = bills[ct + '_limit'];
            }
        }
        if (bills.children && bills.children.length > 0) {
            for (const c of bills.children) {
                this._recursiveCheckBills3fLimit(checkType, c, result, checkInfo);
            }
        } else {
            this._checkLeafBills3fLimit(checkType, bills, result, checkInfo);
        }
    }

    loadData(bills, pos) {
        this.checkBills.loadDatas(bills);
        this.checkPos.loadDatas(pos);
    }

    checkSibling() {
        const error = [];
        for (const node of this.checkBills.nodes) {
            if (!node.children || node.children.length === 0) continue;
            let hasXmj, hasGcl;
            for (const child of node.children) {
                if (child.b_code) hasXmj = true;
                if (!child.b_code) hasGcl = true;
            }
            if (hasXmj && hasGcl) error.push({
                ledger_id: node.ledger_id,
                b_code: node.b_code,
                name: node.name,
                errorType: 'sibling',
            });
        }
        return error;
    }

    checkSameCode() {
        const error = [];
        let xmj = this.checkBills.nodes.filter(x => { return /^((GD*)|G)?[0-9]+/.test(x.code); });
        let check = null;
        while (xmj.length > 0) {
            [check, xmj] = this.ctx.helper._.partition(xmj, x => { return x.code === xmj[0].code; });
            if (check.length > 1) {
                for (const c of check) {
                    error.push({
                        ledger_id: c.ledger_id,
                        b_code: c.b_code,
                        name: c.name,
                        errorType: 'same_code',
                    })
                }
            }
        }
        return error;
    }

    check3fLimit(tender) {
        const result = {
            error: [],
            source: {bills: [], pos: []},
        };

        const check = [];
        if (tender.s2b_gxby_limit) check.push('gxby');
        if (tender.s2b_dagl_limit) check.push('dagl');
        if (check.length === 0) return result;

        for (const b of this.checkBills.children) {
            this._recursiveCheckBills3fLimit(check, b, result, {});
        }
        return result;
    }
}

module.exports = {
    billsTree,
    pos,
    filterTree,
    filterGatherTree,
    gatherTree,
    checkData,
};