Reminder Bot

npm install @botmesh/core @botmesh/baileys

// bot.js
import { Bot, defineBot, isMainModule } from '@botmesh/core'
import { BaileysProvider } from '@botmesh/baileys'

const createBot = defineBot((provider) => {
  const bot = new Bot({ provider })
  const pending = new Map() // chat id → Set of pending reminder tasks
  const subscribers = new Set() // chat ids that get the daily tip

  // "remind 10m call mom": a one-off task with bot.delay()
  bot.when(/^remind\s/i, async (ctx) => {
    const match = /^remind\s+(\d+[smhd])\s+(.+)$/i.exec(ctx.body)
    if (!match) return ctx.reply('Usage: remind <10s|5m|2h|1d> <text>')
    const [, wait, text] = match
    const chatId = ctx.from
    const tasks = pending.get(chatId) ?? new Set()
    pending.set(chatId, tasks)
    const task = bot.delay(wait, async () => {
      tasks.delete(task)
      await bot.send(chatId, `⏰ Reminder: ${text}`)
    })
    tasks.add(task)
    await ctx.reply(`👍 I will remind you in ${wait}.`)
  })

  bot.when('reminders', (ctx) => ctx.reply(`📋 Pending reminders: ${pending.get(ctx.from)?.size ?? 0}`))

  bot.when('cancel reminders', async (ctx) => {
    const tasks = pending.get(ctx.from) ?? new Set()
    for (const task of tasks) task.cancel()
    await ctx.reply(`🗑️ Cancelled ${tasks.size} reminder(s).`)
    tasks.clear()
  })

  // Every day at 9:00, Bogota time, wherever the server runs
  bot.schedule('0 9 * * *', { timeZone: 'America/Bogota' }, async () => {
    for (const chatId of subscribers) await bot.send(chatId, '☀️ Tip of the day: drink a glass of water.')
  })
  bot.when('daily on', (ctx) => {
    subscribers.add(ctx.from)
    return ctx.reply('☀️ Subscribed: a tip every day at 9:00 (Bogota time).')
  })
  bot.when('daily off', (ctx) => {
    subscribers.delete(ctx.from)
    return ctx.reply('👋 Unsubscribed from the daily tip.')
  })

  bot.onMessage((ctx) => ctx.reply('Try: remind 10m call mom · reminders · cancel reminders · daily on'))

  return bot
})

export default createBot

// `node bot.js` connects to WhatsApp; `npx botmesh dev bot.js` skips this block
if (isMainModule(import.meta)) {
  const bot = await createBot(new BaileysProvider({ session: 'reminder-bot' }))
  bot.on('ready', () => console.log('✅ Connected. Send "remind 1m test" from another phone.'))
  await bot.start()
}

user › remind 2s stretch your legs
bot › 👍 I will remind you in 2s.
bot › ⏰ Reminder: stretch your legs
user › remind 1h call mom
bot › 👍 I will remind you in 1h.
user › reminders
bot › 📋 Pending reminders: 1
user › cancel reminders
bot › 🗑️ Cancelled 1 reminder(s).
user › remind tomorrow
bot › Usage: remind <10s|5m|2h|1d> <text>
user › daily on
bot › ☀️ Subscribed: a tip every day at 9:00 (Bogota time).