'use strict';

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

const status = require('../const/audit').stage.status;
const reviseStatus = require('../const/audit').revise.status;
const shenpiConst = require('../const/shenpi');
const _ = require('lodash');

module.exports = options => {
    /**
     * 期校验 中间件
     * 1. 读取期数据
     * 2. 检验用户是否参与期（不校验具体权限）
     *
     * 写入ctx.stage数据
     * 其中:
     * stage.auditors: 审批人列表(退回原报时，加载上一流程)
     * stage.curAuditor: 当前审批人(未上报为空，审批通过 or 退回原报时，为空)
     * stage.readonly: 登录人，是否可操作
     * stage.curTimes: 当前登录人，操作、查阅数据times
     * stage.curOrder: 当前登录人，操作、查阅数据order
     *
     * 该方法为通用方法，如需stage其他数据，请在controller中查询
     *
     * @param {function} next - 中间件继续执行的方法
     * @return {void}
     */
    return function* stageCheck(next) {
        try {
            // 读取标段数据
            const stageOrder = parseInt(this.params.order);
            if (stageOrder <= 0) {
                throw '您访问的期不存在';
            }
            const stage = yield this.service.stage.getDataByCondition({
                tid: this.tender.id,
                order: stageOrder,
            });
            if (!stage) {
                throw '期数据错误';
            }

            // 读取原报、审核人数据
            stage.auditors = yield this.service.stageAudit.getAuditors(stage.id, stage.times);
            stage.curAuditor = yield this.service.stageAudit.getCurAuditor(stage.id, stage.times);

            // 历史台账
            if (stage.status === status.checked) {
                stage.ledgerHis = yield this.service.ledgerHistory.getDataById(stage.his_id);
            }

            // 获取最新的期
            stage.highOrder = yield this.service.stage.count({
                tid: this.tender.id,
            });
            const materials = yield this.service.material.getAllDataByCondition({ columns: ['stage_id', 's_order'], where: { tid: this.tender.id } });
            stage.hadMaterial = materials.find(function(item) {
                return item.s_order.split(',').indexOf(stage.highOrder.toString()) !== -1;
            });
            // 权限相关
            // todo 校验权限 （标段参与人、分享、游客）
            const accountId = this.session.sessionUser.accountId,
                auditorIds = _.map(stage.auditors, 'aid');
            let auditAssists = yield this.service.stageAuditAss.getData(stage);
            // 过滤无效的协审人
            auditAssists = auditAssists.filter(x => {
                return x.user_id === stage.user_id || auditorIds.indexOf(x.user_id) >= 0;
            });
            stage.userAssists = auditAssists.filter(x => { return x.user_id === stage.user_id; }); // 原报协同人
            stage.auditAssists = auditAssists.filter(x => { return x.user_id !== stage.user_id; }); // 审批协同人
            const userAssistIds = _.map(stage.userAssists, 'ass_user_id'),
                auditAssistIds = _.map(stage.auditAssists, 'ass_user_id'),
                shareIds = [];
            stage.users = stage.status === status.uncheck ? [stage.user_id, ...userAssistIds] : [stage.user_id, ...userAssistIds, ...auditorIds, ...auditAssistIds];
            stage.relaAssists = auditAssists.filter(x => { return x.user_id === accountId });
            if (stage.status === status.uncheck) {
                stage.readOnly = accountId !== stage.user_id && userAssistIds.indexOf(accountId) < 0;
                if (!stage.readOnly) {
                    stage.assist = stage.userAssists.find(x => { return x.ass_user_id === accountId; });
                }
                stage.curTimes = stage.times;
                stage.curOrder = 0;
            } else if (stage.status === status.checkNo) {
                stage.readOnly = accountId !== stage.user_id && userAssistIds.indexOf(accountId) < 0;
                const checkNoAudit = yield this.service.stageAudit.getDataByCondition({
                    sid: stage.id, times: stage.times - 1, status: status.checkNo,
                });
                if (!stage.readOnly) {
                    stage.assist = stage.userAssists.find(x => { return x.ass_user_id === accountId; });
                    stage.curTimes = stage.times;
                    stage.curOrder = 0;
                } else {
                    stage.curTimes = stage.times - 1;
                    stage.curOrder = checkNoAudit.order;
                }
            } else if (stage.status === status.checked) {
                stage.readOnly = true;
                stage.curTimes = stage.times;
                stage.curOrder = _.max(_.map(stage.auditors, 'order'));
            } else {
                const ass = stage.auditAssists.find(x => { return x.user_id === stage.curAuditor.aid && x.ass_user_id === accountId; });
                stage.readOnly = stage.curAuditor.aid !== accountId && !ass;
                stage.curTimes = stage.times;
                if (!stage.readOnly) {
                    stage.assist = ass;
                    stage.curOrder = stage.curAuditor.order;
                } else {
                    stage.curOrder = stage.curAuditor.order - 1;
                }
            }
            if (stage.readOnly) {
                stage.assist = accountId === stage.user_id || auditorIds.indexOf(accountId) >= 0 ? null : auditAssists.find(x => { return x.ass_user_id === accountId});
            }

            const permission = this.session.sessionUser.permission;
            if (stage.users.indexOf(accountId) >= 0) {
                stage.filePermission = true;
            } else {
                if (shareIds.indexOf(accountId) !== -1 || (permission !== null && permission.tender !== undefined && permission.tender.indexOf('2') !== -1)) {// 分享人
                    if (stage.status === status.uncheck) {
                        throw '您无权查看该数据';
                    }
                    stage.filePermission = false;
                } else if (this.tender.isTourist || this.session.sessionUser.is_admin) {
                    stage.filePermission = this.tender.touristPermission.file || auditorIds.indexOf(accountId) !== -1;
                } else {
                    throw '您无权查看该数据';
                }
            }

            // 获取当前审批人的上一个审批人，判断是否是当前登录人，并赋予撤回功能，（当审批人存在有审批过时，上一人不允许再撤回）
            stage.cancancel = 0;
            if (stage.status !== status.checked && stage.status !== status.uncheck) {
                if (stage.status !== status.checkNo) {
                    // 找出当前操作人上一个审批人，包括审批完成的和退回上一个审批人的，同时当前操作人为第一人时，就是则为原报
                    const onAuditor = _.find(stage.auditors, function(item) {
                        return item.aid === stage.curAuditor.aid && item.status === status.checking;
                    });
                    const preAudit = onAuditor.order !== 1 ? _.find(stage.auditors, { order: onAuditor.order - 1 }) : false;
                    const preAid = preAudit ? (preAudit.status !== status.checkAgain ? preAudit.aid : false) : stage.user_id;// 已发起重审无法撤回
                    if ((onAuditor.aid === preAid && preAudit.status === status.checkCancel) || preAudit.is_old === 1) {
                        stage.cancancel = 0;// 不可以多次撤回
                    } else if (preAid === accountId && preAid !== stage.user_id) {
                        if (preAudit.status === status.checked) {
                            stage.cancancel = 2;// 审批人撤回审批通过
                        } else if (preAudit.status === status.checkNoPre) {
                            stage.cancancel = 3;// 审批人撤回审批退回上一人
                        }
                        stage.preAudit = preAudit;
                    } else if (preAid === accountId && preAid === stage.user_id) {
                        stage.cancancel = 1;// 原报撤回
                    }
                } else {
                    const lastAuditors = yield this.service.stageAudit.getAuditors(stage.id, stage.times - 1);
                    const onAuditor = _.find(lastAuditors, { status: status.checkNo });
                    if (onAuditor.aid === accountId) {
                        stage.cancancel = 4;// 审批人撤回退回原报
                    }
                }
            }

            const lastRevise = yield this.service.ledgerRevise.getLastestRevise(this.tender.id);
            stage.revising = (lastRevise && lastRevise.status !== reviseStatus.checked) || false;
            this.stage = stage;
            // 根据状态判断是否需要更新审批人列表
            if ((stage.status === status.uncheck || stage.status === status.checkNo) && this.tender.info.shenpi.stage !== shenpiConst.sp_status.sqspr) {
                const shenpi_status = this.tender.info.shenpi.stage;
                // 进一步比较审批流是否与审批流程设置的相同，不同则替换为固定审批流或固定的终审
                const auditList = yield this.service.stageAudit.getAllDataByCondition({ where: { sid: stage.id, times: stage.times }, orders: [['order', 'asc']] });
                const auditIdList = _.map(auditList, 'aid');
                if (shenpi_status === shenpiConst.sp_status.gdspl) {
                    const shenpiList = yield this.service.shenpiAudit.getAllDataByCondition({ where: { tid: stage.tid, sp_type: shenpiConst.sp_type.stage, sp_status: shenpi_status } });
                    const shenpiIdList = _.map(shenpiList, 'audit_id');
                    // 判断2个id数组是否相同，不同则删除原审批流，切换成固定的审批流
                    if (!_.isEqual(auditIdList, shenpiIdList)) {
                        yield this.service.stageAudit.updateNewAuditList(stage, shenpiIdList);
                    }
                } else if (shenpi_status === shenpiConst.sp_status.gdzs) {
                    const shenpiInfo = yield this.service.shenpiAudit.getDataByCondition({ tid: stage.tid, sp_type: shenpiConst.sp_type.stage, sp_status: shenpi_status });
                    // 判断最后一个id是否与固定终审id相同，不同则删除原审批流中如果存在的id和添加终审
                    if (shenpiInfo && shenpiInfo.audit_id !== _.last(auditIdList)) {
                        yield this.service.stageAudit.updateLastAudit(stage, auditList, shenpiInfo.audit_id);
                    } else if (!shenpiInfo) {
                        // 不存在终审人的状态下这里恢复为授权审批人
                        this.tender.info.shenpi.stage = shenpiConst.sp_status.sqspr;
                    }
                }
            }
            yield next;
        } catch (err) {
            console.log(err);
            this.helper.log(err);
            // 输出错误到日志
            if (err.stack) {
                this.logger.error(err);
            } else {
                this.getLogger('fail').info(JSON.stringify({
                    error: err,
                    project: this.session.sessionProject,
                    user: this.session.sessionUser,
                    body: this.session.body,
                }));
            }
            // 重定向值标段管理
            this.redirect(this.request.headers.referer);
        }
    };
};