example_generator.ts

import * as fs from "fs";
import * as path from "path";
import * as moment from "moment";

let root_folder = __dirname;
let subfolder = "diary";
let dateFormat = "YYYY-MM-DD";
let startDate = moment("2021-01-01", dateFormat);
let endDate = moment("2021-12-31", dateFormat);

function randomIntFromInterval(min: number, max: number) {
    return Math.floor(Math.random() * (max - min + 1) + min);
}

function randomFloatFromInterval(min: number, max: number) {
    return Math.random() * (max - min + 1) + min;
}

// Check subfolder exists
let subfolderPath = path.join(root_folder, subfolder);
if (!fs.existsSync(subfolderPath)) {
    fs.mkdirSync(subfolderPath);
}

let dayCount = 0;
for (
    let curDate = startDate.clone();
    curDate <= endDate;
    curDate.add(1, "days")
) {
    dayCount++;
    let fileName = curDate.format(dateFormat);
    let filePath = path.join(subfolderPath, fileName + ".md");

    let fh = fs.openSync(filePath, "w+");

    let content: string = "";

    // fontmatter
    let frontmatter = "---\n";
    let weekday = curDate.weekday();
    // front matter tags
    if (weekday == 0 || weekday == 6) {
        frontmatter += "tags: " + "\n";
    } else {
        frontmatter += "tags: " + "work_log" + "\n";
    }
    // frontmatter mood
    let mood = randomIntFromInterval(1, 10);
    frontmatter += "mood: " + mood + "\n";

    // blood pressure
    let progress = dayCount;
    if (progress > 100) {
        progress = 100;
    }
    let systolicStart = 180;
    let diastolicStart = 120;
    let systolicEnd = 120;
    let diastolicEnd = 100;
    let systolicDeviation = randomIntFromInterval(-5, 5);
    let diastolicDeviation = randomIntFromInterval(-2, 2);
    let systolic =
        ((systolicEnd - systolicStart) * dayCount) / 100 +
        systolicStart +
        systolicDeviation;
    let diastolic =
        ((diastolicEnd - diastolicStart) * dayCount) / 100 +
        diastolicStart +
        diastolicDeviation;
    frontmatter += "bloodpressure: " + systolic + "/" + diastolic + "\n";

    frontmatter += "---\n";
    content += frontmatter;

    content += "\n";

    // weight
    let weight = randomFloatFromInterval(60.0, 80.0);
    let tagWeight = "#weight:" + weight.toFixed(1) + "kg";
    content += tagWeight + "\n";

    content += "\n";

    // excercise
    // pushup
    let numPushup = randomIntFromInterval(30, 50);
    let tagPushup = "#exercise-pushup:" + numPushup;
    content += tagPushup + "\n";
    //plank
    let numPlank = randomIntFromInterval(30, 120);
    let tagPlank = "#exercise-plank:" + numPlank + "sec";
    content += tagPlank + "\n";

    content += "\n";

    // meditation
    let tagMeditation = "#meditation";
    let missedMeditation = randomIntFromInterval(0, 1);
    if (!missedMeditation) {
        content += tagMeditation + "\n";
    }

    content += "\n";

    // star
    let textStar = "⭐";
    let numStar = randomIntFromInterval(0, 5);
    content += textStar.repeat(numStar) + "\n";

    content += "\n";

    // finance
    let tagFinanceBank1 = "#finance/bank1";
    let tagFinanceBank2 = "#finance/bank2";

    let expense = randomFloatFromInterval(2.0, 3.0);
    content += tagFinanceBank1 + ":-" + expense.toFixed(1) + "USD" + "\n";

    if (dayCount % 30 == 0) {
        content += tagFinanceBank2 + ":" + "200USD" + "\n";
        content += tagFinanceBank2 + "/transfer:" + "-100USD" + "\n";
        content += tagFinanceBank1 + "/transfer:" + "100USD" + "\n";
    }

    content += "\n";

    // wiki links
    content += "[[todo_family|To-Do @Family]]" + "\n";
    content += "[[todo_work|To-Do @Work]]" + "\n";

    content += "\n";

    // searching text use regex
    let addEmail1 = randomIntFromInterval(0, 1);
    if (addEmail1) {
        content += "obsidian-tracker@gmail.com" + "\n";
    }
    let addEmail2 = randomIntFromInterval(0, 1);
    if (addEmail2) {
        content += "obsidian-tracker+1@gmail.com" + "\n";
    }
    let addEmail3 = randomIntFromInterval(0, 1);
    if (addEmail3) {
        content += "obsidian-tracker@yahoo.com" + "\n";
    }

    content += "\n";

    let countWeightLifting = randomIntFromInterval(10, 20);
    let addWeightLifting = randomIntFromInterval(0, 5);
    if (addWeightLifting > 0) {
        content += "weightlifting: " + countWeightLifting + "\n";
    }

    content += "\n";

    let amplitude = 1.0;
    let period = 30; // how many days to complete a sin period
    let numSinValues = 9;
    let initPhaseShift = -1.0;
    let shiftPhase = 1.0;
    let sinValues: Array<string> = [];
    for (let ind = 0; ind < numSinValues; ind++) {
        let shift = initPhaseShift + ind * shiftPhase;
        let sinValue =
            amplitude *
            Math.sin(((2.0 * Math.PI) / period) * (dayCount + shift));
        sinValues.push(sinValue.toFixed(5));
    }

    let tagSin = "#sin";

    content += tagSin + ":" + sinValues.join("/") + "\n";

    content += "\n";

    let sinSquareValues: Array<string> = [];
    for (let ind = 0; ind < numSinValues; ind++) {
        let shift = initPhaseShift + ind * shiftPhase;
        let sinSquareValue =
            (amplitude *
                Math.sin(((2.0 * Math.PI) / period) * (dayCount + shift))) **
            2;
        sinSquareValues.push(sinSquareValue.toFixed(5));
    }

    let tagSinSquare = "#sinsquare";
    content += tagSinSquare + ":" + sinSquareValues.join("/") + "\n";

    content += "\n";

    fs.writeFileSync(fh, content);
    fs.closeSync(fh);
}