代码优化标注

getlinexiaohaoData(param).then(res => {
    const { vehicle, charging, delete: deleted, gasoline, dieselOil, gas, electric } = res.data.data;

    const getUniqueNames = (data) => [...new Set(data.map(item => item.name))].sort();

    const getDataSeries = (data, names, defaultValue = 0) => {
        return names.map(name => {
            const index = data.findIndex(item => item.name === name);
            return index > -1 ? data[index].amount : defaultValue;
        });
    };

    if (this.params.endTime === this.params.startTime) {
        if (vehicle && vehicle.length) {
            const uniqueNames = getUniqueNames(vehicle);
            this.xdatas = uniqueNames;
            this.lineseries[0] = {
                name: '消耗金额',
                type: 'line',
                smooth: false,
                data: getDataSeries(vehicle, uniqueNames)
            };
        } else {
            this.lineseries = [];
        }
    } else {
        const combined = [...charging, ...deleted];
        this.xdatas = getUniqueNames(combined);

        this.lineseries[0] = {
            name: '消耗金额',
            type: 'line',
            smooth: false,
            data: getDataSeries(charging, this.xdatas)
        };

        this.lineseries[1] = {
            name: '添加金额',
            type: 'line',
            smooth: false,
            data: getDataSeries(deleted, this.xdatas)
        };

        const addSeriesData = (data, seriesName) => {
            if (data && data.length) {
                let seriesData = [];
                this.xdatas.forEach((item, index) => {
                    const indexInData = data.findIndex(item1 => item === item1.name);
                    if (indexInData > -1) {
                        data[indexInData].data.forEach((y) => {
                            seriesData.push({
                                name: `${data[indexInData].name}-${seriesData.length}`,
                                value: [index, y]
                            });
                        });
                    } else {
                        seriesData.push({ name: `${item}-0`, value: [index, '0'] });
                    }
                });
                this.lineseries.push({ name: seriesName, type: 'line', smooth: false, data: seriesData });
            }
        };

        if (gasoline) addSeriesData(gasoline, '汽油');
        if (dieselOil) addSeriesData(dieselOil, '柴油');
        if (gas) addSeriesData(gas, '燃气');
        if (electric) addSeriesData(electric, '电');
    }
});