import { Router } from 'express'
import axios from 'axios'

const router = Router()

router.get('/current', async (_req, res) => {
  try {
    const location = process.env.WEATHER_LOCATION
    if (!location) {
      res.status(503).json({ error: 'WEATHER_LOCATION not configured' })
      return
    }

    const response = await axios.get(
      `https://wttr.in/${encodeURIComponent(location)}?format=j1`,
      { headers: { Accept: 'application/json' }, timeout: 8000 }
    )

    const data     = response.data
    const c        = data.current_condition[0]
    const area     = data.nearest_area?.[0]
    const today    = data.weather?.[0]

    const hourly = (today?.hourly ?? []).map((h: Record<string, unknown>) => ({
      hour:   Math.floor(Number(h.time) / 100),
      tempC:  Number(h.tempC),
      code:   Number(h.weatherCode),
      desc:   (h.weatherDesc as { value: string }[])[0]?.value ?? '',
    }))

    res.json({
      tempC:      Number(c.temp_C),
      feelsLikeC: Number(c.FeelsLikeC),
      humidity:   Number(c.humidity),
      windKmph:   Number(c.windspeedKmph),
      desc:       c.weatherDesc[0].value as string,
      code:       Number(c.weatherCode),
      city:       area?.areaName?.[0]?.value ?? location,
      todayMin:   Number(today?.mintempC ?? c.temp_C),
      todayMax:   Number(today?.maxtempC ?? c.temp_C),
      hourly,
    })
  } catch (err: unknown) {
    const msg = err instanceof Error ? err.message : 'Unknown error'
    res.status(500).json({ error: msg })
  }
})

export default router