'use strict';

/**
 *
 *
 * @author Mai
 * @date
 * @version
 */
const LedgerTree = require('./ledger');
const xlsx = require('js-xlsx');
const measureType = require('../const/tender').measureType;

class exportExcel {

    constructor(ctx) {
        this.ctx = ctx;
        this.setting = null;
        this.xlsxData = {
            SheetNames: [],
            Sheets: {}
        };
    }

    export2Sheet(xlsxData, name, data) {
        if (xlsxData.SheetNames.indexOf(name) >= 0) throw '存在同名Sheet';

        if (this.setting) {
            xlsxData.SheetNames.push(name);
            xlsxData.Sheets[name] = this.ctx.helper.simpleXlsxSheetData(this.setting, data);
        }
    }

    async export2File(fileName) {
        this.export2Sheet(this.xlsxData, 'Sheet1', []);
        xlsx.writeFile(this.xlsxData, fileName);
    }
}

class exportLedger2Excel extends exportExcel {
    constructor(ctx) {
        super(ctx);
        this.setting = {
            header: ['项目节编号', '清单子目号', '计量单元', '名称', '单位', '清单数量', '设计数量1', '设计数量2', '单价', '合价', '图号', '备注'],
            width: [100, 70, 70, 300, 60, 80, 80, 80, 80, 80, 100, 100],
            hAlign: ['left', 'left', 'left', 'left','center', 'right', 'right', 'right', 'right', 'right', 'left', 'left'],
        };
    }

    async sortLedgerData(billsTree, pos) {
        const result = [];
        for (const node of billsTree.nodes) {
            result.push([node.code, node.b_code, '', node.name, node.unit,
                node.quantity, node.dgn_qty1, node.dgn_qty2, node.unit_price, node.total_price,
                node.drawing_code, node.memo
            ]);
            const posRange = pos.getLedgerPos(node.id);
            if (posRange && posRange.length > 0) {
                for (const [i, p] of posRange.entries()) {
                    result.push([
                        '', '', (i + 1) + '', p.name, '',
                        p.quantity, null, null, null, null,
                        p.drawing_code, p.memo
                    ]);
                }
            }
        }
        return result;
    }

    async getLedgerMapData() {
        const billsData = await this.ctx.service.ledger.getData(this.ctx.tender.id);
        const billsTree = new LedgerTree.billsTree(this.ctx, {
            id: 'ledger_id',
            pid: 'ledger_pid',
            order: 'order',
            level: 'level',
            rootId: -1,
            keys: ['id', 'tender_id', 'ledger_id'],
            stageId: 'id',
            calcFields: ['deal_tp', 'total_price']
        });
        billsTree.loadDatas(billsData);
        billsTree.calculateAll();

        const posData = this.ctx.tender.data.measure_type === measureType.tz.value
            ? await this.ctx.service.pos.getPosData({tid: this.ctx.tender.id}) : [];
        const pos = new LedgerTree.pos({id: 'id', ledgerId: 'lid'});
        pos.loadDatas(posData);

        return this.sortLedgerData(billsTree, pos);
    }

    async export2File(fileName) {
        const ledgerData = await this.getLedgerMapData();
        this.export2Sheet(this.xlsxData, '台账分解', ledgerData);
        xlsx.writeFile(this.xlsxData, fileName);
    }
}

module.exports = {
    exportLedger2Excel
};