'use strict';

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

const readOnlyFields = ['id', 'spid', 'tree_id', 'tree_pid', 'tree_order', 'tree_level', 'tree_full_path', 'tree_is_leaf'];
const defaultData = [
    { code: '1', name: '前期阶段', tree_id: 1, tree_pid: -1, tree_level: 1, tree_order: 1, tree_full_path: '1', tree_is_leaf: 1 },
    { code: '2', name: '实施阶段', tree_id: 2, tree_pid: -1, tree_level: 1, tree_order: 2, tree_full_path: '2', tree_is_leaf: 1 },
    { code: '3', name: '竣（交）工阶段', tree_id: 3, tree_pid: -1, tree_level: 1, tree_order: 3, tree_full_path: '3', tree_is_leaf: 1 },
];

module.exports = app => {
    class SubProjProgress extends app.BaseTreeService {

        /**
         * 构造函数
         *
         * @param {Object} ctx - egg全局变量
         * @param {String} tableName - 表名
         * @return {void}
         */
        constructor(ctx) {
            super(ctx, {
                mid: 'spid',
                kid: 'tree_id',
                pid: 'tree_pid',
                order: 'tree_order',
                level: 'tree_level',
                isLeaf: 'tree_is_leaf',
                fullPath: 'tree_full_path',
                cacheKey: false,
                uuid: true,
            });
            this.tableName = 'sub_project_progress';
        }

        _getDefaultData(data, spid) {
            data.id = this.uuid.v4();
            data.spid = spid;
            data.add_user_id = this.ctx.session.sessionUser.accountId;
            data.update_user_id = this.ctx.session.sessionUser.accountId;
        }

        async init(subProj) {
            if (!subProj) throw '阶段进度数据错误';

            const insertData = [];
            for (const b of defaultData) {
                const bills = JSON.parse(JSON.stringify(b));
                this._getDefaultData(bills, subProj.id);
                insertData.push(bills);
            }

            const operate = await this.db.insert(this.tableName, insertData);
            return operate.affectedRows === insertData.length;
        }

        async getData(subProj) {
            let result = await this.getAllDataByCondition({ where: { spid: subProj.id } });
            if (result.length === 0) {
                await this.init(subProj);
                result = await this.getAllDataByCondition({ where: { spid: subProj.id } });
            }
            return result;
        }

        async addChild(spid, select, count) {
            const maxId = await this._getMaxLid(spid);
            const children = await this.getChildrenByParentId(spid, select[this.setting.kid]);
            const newDatas = [];
            for (let i = 1; i < count + 1; i++) {
                const newData = {};
                newData[this.setting.kid] = maxId + i;
                newData[this.setting.pid] = select[this.setting.kid];
                newData[this.setting.level] = select[this.setting.level] + 1;
                newData[this.setting.order] = children.length + i;
                newData[this.setting.fullPath] = select[this.setting.fullPath] + '-' + newData[this.setting.kid];
                newData[this.setting.isLeaf] = true;
                this._getDefaultData(newData, spid);
                newDatas.push(newData);
            }

            this.transaction = await this.db.beginTransaction();
            try {
                const result = await this.transaction.insert(this.tableName, newDatas);
                if (children.length === 0) await this.transaction.update(this.tableName, { id: select.id, tree_is_leaf: 0 });
                await this.transaction.commit();
            } catch(err) {
                this.transaction.rollback();
                throw err;
            }

            // 查询应返回的结果
            const resultData = {};
            resultData.create = await this.getNextsData(spid, select[this.setting.kid], children.length);
            if (children.length === 0) resultData.update = await this.getDataByKid(spid, select[this.setting.kid]);
            return resultData;
        }

        async addNextSibling(spid, select, count) {
            const maxId = await this._getMaxLid(spid);
            const newDatas = [];

            for (let i = 1; i < count + 1; i++) {
                const newData = {};
                newData[this.setting.kid] = maxId + i;
                newData[this.setting.pid] = select ? select[this.setting.pid] : this.rootId;
                newData[this.setting.level] = select ? select[this.setting.level] : 1;
                newData[this.setting.order] = select ? select[this.setting.order] + i : i;
                newData[this.setting.fullPath] = newData[this.setting.level] > 1
                    ? select[this.setting.fullPath].replace('-' + select[this.setting.kid], '-' + newData[this.setting.kid])
                    : newData[this.setting.kid] + '';
                newData[this.setting.isLeaf] = true;
                this._getDefaultData(newData, spid);
                newDatas.push(newData);
            }

            this.transaction = await this.db.beginTransaction();
            try {
                if (select) await this._updateChildrenOrder(spid, select[this.setting.pid], select[this.setting.order] + 1, count);
                const insertResult = await this.transaction.insert(this.tableName, newDatas);
                if (insertResult.affectedRows !== count) throw '新增节点数据错误';
                await this.transaction.commit();
            } catch (err) {
                await this.transaction.rollback();
                this.transaction = null;
                throw err;
            }

            if (select) {
                const createData = await this.getChildBetween(spid, select[this.setting.pid], select[this.setting.order], select[this.setting.order] + count + 1);
                const updateData = await this.getNextsData(spid, select[this.setting.pid], select[this.setting.order] + count);
                return {create: createData, update: updateData};
            } else {
                const createData = await this.getChildBetween(spid, -1, 0, count + 1);
                return {create: createData};
            }
        }

        async addProgressNode(spid, targetId, count) {
            if (!spid) return null;

            const select = targetId ? await this.getDataByKid(spid, targetId) : null;
            if (targetId && !select) throw '新增节点数据错误';

            if (select[this.setting.level] === 1) {
                return await this.addChild(spid, select, count);
            } else {
                return await this.addNextSibling(spid, select, count);
            }
        }

        async _deleteRelaData(spid, deleteData) {
            if (!this.transaction) throw '删除相关数据错误';
            await this.transaction.update(this.ctx.service.subProjFile.tableName, {is_deleted: 1},
                { where: { spid, type: 'progress', rela_id: deleteData.map(x => { return x.id; })} });
        }

        async updateInfos(spid, data) {
            if (!spid) throw '数据错误';

            const datas = Array.isArray(data) ? data : [data];
            const orgDatas = await this.getAllDataByCondition({ where: { id: datas.map(x => { return x.id; })} });

            const updateDatas = [];
            for (const d of datas) {
                const node = orgDatas.find(x => { return x.id === d.id; });
                if (!node || node.spid !== spid) throw '提交数据错误';
                d.update_user_id = this.ctx.session.sessionUser.accountId;
                updateDatas.push(this._filterUpdateInvalidField(node.id, d));
            }
            await this.db.updateRows(this.tableName, updateDatas);

            const resultData = await this.getDataById(this._.map(datas, 'id'));
            return { update: resultData };
        }
    }

    return SubProjProgress;
}