dbmaster-cli/src/transforms/csv2json.transform.js

Tool for converting tables between Fifa Soccer Games

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Csv2JsonTransform = void 0;
const stream_1 = require("stream");
const interfaces_1 = require("../interfaces");
const utils_1 = require("../utils");
class Csv2JsonTransform extends stream_1.Transform {
    constructor(opts) {
        super(opts);
        this.opts = opts;
    }
    _transform(chunk, encoding, callback) {
        const cols = chunk.toString().split(/\t/);
        const { length } = cols;
        if (length === this.opts.fields.length) {
            const object = this.opts.fields
                .sort(utils_1.sortByOrder)
                .reduce((acc, field) => ({ ...acc, [field.name]: this.formatFn(field, cols[field.order]) }), {});
            this.push(JSON.stringify(object));
        }
        callback();
    }
    _flush(callback) {
        callback();
    }
    formatFn(field, value) {
        switch (field.type) {
            case interfaces_1.Datatype.Int:
                return Number(value);
            case interfaces_1.Datatype.Float:
                return Number(value.replace(',', '.'));
            default:
                return value;
        }
    }
}
exports.Csv2JsonTransform = Csv2JsonTransform;