wren/val Public Public: anyone can read this; nobody can change it.

/**

 * val, in a terminal. The forge runs this on a pty when someone

 * `ssh`es to the app, with FORGE_APP_DATA pointing at the same data the

 * web page uses. j/k move, a adds a note, d deletes the one under the

 * cursor, q leaves. Plain ANSI, no dependencies.

 */

import { Database } from "bun:sqlite";

import { mkdirSync } from "node:fs";

import { join } from "node:path";

const dataDir = process.env.FORGE_APP_DATA ?? "./data";

mkdirSync(dataDir, { recursive: true });

const db = new Database(join(dataDir, "app.db"));

db.exec("PRAGMA journal_mode = WAL");

db.exec(

  "CREATE TABLE IF NOT EXISTS note (id INTEGER PRIMARY KEY, body TEXT NOT NULL, created_at TEXT NOT NULL DEFAULT (datetime('now')))",

);

const where = process.env.FORGE_APP_ENV === "preview" ? `preview of #${process.env.FORGE_APP_PULL ?? "?"}` : (process.env.FORGE_APP_ENV ?? "local");

type Note = { id: number; body: string; created_at: string };

const notes = (): Note[] => db.query<Note, []>("SELECT id, body, created_at FROM note ORDER BY id DESC").all();

let cursor = 0;

let typing: string | undefined;

const out = (s: string): void => { process.stdout.write(s); };

const esc = "\x1b[";

function draw(): void {

  const rows = notes();

  const lines: string[] = [];

  lines.push(`${esc}1mval${esc}0m  ${esc}2m${where}${esc}0m`);

  lines.push("");

  if (rows.length === 0) lines.push(`${esc}2mNo notes yet. Press a to add one.${esc}0m`);

  rows.forEach((n, i) => {

    const mark = i === cursor ? "▸" : " ";

    const body = i === cursor ? `${esc}1m${n.body}${esc}0m` : n.body;

    lines.push(`${mark} ${body}  ${esc}2m${n.created_at}${esc}0m`);

  });

  lines.push("");

  lines.push(typing === undefined ? `${esc}2mj/k move · a add · d delete · q quit${esc}0m` : `New note: ${typing}${esc}7m ${esc}0m`);

  out(`${esc}2J${esc}H` + lines.join("\r\n"));

}

process.stdin.setRawMode?.(true);

process.stdin.resume();

process.stdin.setEncoding("utf8");

draw();

process.stdin.on("data", (key: string) => {

  if (typing !== undefined) {

    if (key === "\r") {

      const body = typing.trim();

      if (body) db.query("INSERT INTO note (body) VALUES (?1)").run(body.slice(0, 500));

      typing = undefined;

      cursor = 0;

    } else if (key === "\x1b") typing = undefined;

    else if (key === "\x7f") typing = typing.slice(0, -1);

    else if (key >= " ") typing += key;

    draw();

    return;

  }

  if (key === "q" || key === "\x03") { out(`${esc}2J${esc}H`); process.exit(0); }

  const count = notes().length;

  if (key === "j" || key === "\x1b[B") cursor = Math.min(cursor + 1, Math.max(0, count - 1));

  if (key === "k" || key === "\x1b[A") cursor = Math.max(cursor - 1, 0);

  if (key === "a") typing = "";

  if (key === "d") {

    const n = notes()[cursor];

    if (n) db.query("DELETE FROM note WHERE id = ?1").run(n.id);

    cursor = Math.min(cursor, Math.max(0, notes().length - 1));

  }

  draw();

});

process.stdout.on("resize", draw);