@s-hiroshi/bks/dist/model/HistoryReader.js

Cli bookmarks application

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.HistoryReader = void 0;
const fs = require("fs");
const readLinesToArray_1 = require("../service/readLinesToArray");
class HistoryReader {
    constructor(filePath) {
        this.filePath = filePath;
    }
    async init() {
        const rawHistories = await (0, readLinesToArray_1.readLinesToArray)(this.filePath);
        this.histories = rawHistories.reverse();
    }
    getRows() {
        return this.histories.length;
    }
    read(start, offset) {
        const targetHistories = [];
        this.histories.forEach((history, i) => {
            if (start <= i && i < start + offset) {
                targetHistories.push(history);
            }
        });
        return targetHistories;
    }
    readReverse(start, offset) {
        const targetHistories = [];
        this.histories.forEach((history, i) => {
            if (start - offset <= i && i < start) {
                targetHistories.push(history);
            }
        });
        return targetHistories;
    }
}
exports.HistoryReader = HistoryReader;
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