day-one-to-markdown.js

import { readFileSync, writeFileSync } from "fs";
import { DateTime } from "luxon";
import { stringify } from "yaml";

// Subfolder in the vault
const PATH_TO_FOLDER = "/Users/joshcanhelp/Notes/Log/Day One/";

// Day One tags as keys, Obsidian tags as values
const tagMap = {
  FromTag1: "to-tag-1",
  FromTag2: "to-tag-2",
  FromTag3: "to-tag-3",
};

// Fix up location names or return as-is
const mapLocation = (location) => {
  const { localityName, placeName, administrativeArea } = location;

  if (placeName.includes("38th Ave W")) {
    return "983 38th Ave W";
  }

  if (placeName.includes("Sukhumvit")) {
    return "Rung Rueng Noodle";
  }

  if (
    (placeName.includes("701 Broadway"),
    placeName.includes("456 Canyon Dr"),
    placeName.includes("A Random Store"))
  ) {
    return `${localityName}, ${administrativeArea}`;
  }

  return placeName;
};

// File > Export > JSON
const journal = JSON.parse(
  readFileSync("./Journal.json", { encoding: "utf8" }),
);

const unslash = (str) =>
  str
    .replace(/\\\-/g, "-")
    .replace(/\\\(/g, "(")
    .replace(/\\\]/g, "]")
    .replace(/\\\[/g, "[")
    .replace(/\\\)/g, ")")
    .replace(/\\\!/g, "!")
    .replace(/\\\+/g, "+")
    .replace(/\\\./g, ".")
    .replace(/\\\//g, "-");

for (const entry of journal.entries) {
  const frontMatter = {
    places: [],
    uuid: entry.uuid,
    device: `${entry.creationDevice} (${entry.creationOSName || "unknown OS"} ${entry.creationOSVersion || "unknown version"})`,
  };

  if (entry.weather) {
    frontMatter.weather = entry.weather.conditionsDescription;
    frontMatter.temperature =
      Math.round((entry.weather.temperatureCelsius * 9) / 5 + 32) + "°F";
  }

  const entryPhotos = {};
  if (entry.photos) {
    for (const photo of entry.photos) {
      entryPhotos[photo.identifier] = `${photo.md5}.${photo.type}`;
    }
  }

  let entryText = entry.text;
  const imgRegex = /!\[\]\(dayone-moment:\/\/([a-fA-F0-9]+)\)/g;
  const imgMatches = entry.text.matchAll(imgRegex);
  for (const match of imgMatches) {
    entryText = entryText.replace(
      match[0],
      `![[_files/Day One/${entryPhotos[match[1]]}]]`,
    );
  }

  let entryLineOne = entryText.split("\n")[0].trim();
  if (entryLineOne[0] === "#") {
    entryLineOne =
      ` - ` +
      unslash(entryLineOne.replace("# ", "").replace(":", "")).replace(
        /\//g,
        "-",
      );
    entryText = unslash(entryText.split("\n").slice(1).join("\n"));
  } else {
    entryLineOne = "";
  }

  const fileName =
    DateTime.fromISO(entry.creationDate)
      .setZone(entry.timeZone)
      .toFormat("yyyy-MM-dd'T'HH-mm-ss") +
    entryLineOne +
    ".md";

  if (entry.tags) {
    frontMatter.tags = [];
    for (const tag of entry.tags) {
      if (tagMap[tag]) {
        frontMatter.tags.push(tagMap[tag]);
      }
    }
  }

  if (entry.location) {
    if (mapLocation(entry.location)) {
      const locNoteName = mapLocation(entry.location);
      frontMatter.places.push(`[[Places/${locNoteName}|${locNoteName}]]`);
      frontMatter.lat = entry.location.latitude;
      frontMatter.long = entry.location.longitude;
    }
  }

  const fileContent = `---

${stringify(frontMatter)}
---

${entryText}
`;

  writeFileSync(PATH_TO_FOLDER + fileName, fileContent);
}