import 'dotenv/config'
import { networkInterfaces } from 'node:os'
import qrcode from 'qrcode-terminal'
import { loadProjectConfig } from './lib/config.ts'
import { resolveDeck } from './lib/content.ts'
import { runSlidev } from './lib/run-slidev.ts'
import { resolveTheme } from './lib/theme.ts'

const input = process.argv.slice(2).find(argument => !argument.startsWith('-'))
const config = await loadProjectConfig()
const deck = await resolveDeck(input, process.cwd(), config.slidesDir)
const port = process.env.PORT || '3030'
const address = firstLanAddress()
const remoteToken = process.env.SLIDEV_REMOTE_TOKEN || 'easy-slides-local'
const remotePassword = encodeURIComponent(remoteToken)
const presenterUrl = `http://${address}:${port}/presenter/?password=${remotePassword}`
const remoteUrl = `http://${address}:${port}/entry?password=${remotePassword}`

console.log(`\n观众视图：http://${address}:${port}/`)
console.log(`演示者视图：${presenterUrl}`)
console.log(`手机遥控器：${remoteUrl}`)
qrcode.generate(presenterUrl, { small: true })

await runSlidev([
  deck.entry,
  '--theme',
  resolveTheme(config.theme),
  '--port',
  port,
  '--remote',
  remoteToken,
  '--bind',
  '0.0.0.0',
])

function firstLanAddress() {
  for (const entries of Object.values(networkInterfaces())) {
    for (const entry of entries ?? []) {
      if (entry.family === 'IPv4' && !entry.internal)
        return entry.address
    }
  }
  return 'localhost'
}