// shared hint printed when the CLI has no bridge or no desktop companion.

import { findDesktopCompanion } from '../desktop-companion'
import type { BridgeSimInfo } from '../ws-bridge'

export function printMissingCompanionHint() {
  console.error('  no rnx desktop companion found.')
  console.error('')
  console.error('  install the desktop app:')
  console.error('    rnx desktop install')
  console.error('')
  console.error('  or install the recommended background service:')
  console.error('    rnx daemon install')
  console.error('')
}

export function printMissingBridgeHint(port: number) {
  const companion = findDesktopCompanion()
  console.log(`  note: no rnx bridge detected on port ${port}`)
  if (companion) {
    console.log(`  launch the installed companion with:`)
    console.log(`    rnx desktop`)
    return
  }
  console.log('')
  console.log('  run `rnx daemon install` to enable the faster background service,')
  console.log('  or run `rnx serve` in another shell for a foreground bridge.')
}

export function printMissingSimHint(port: number) {
  console.error('')
  console.error(`  no sim is connected to the rnx bridge on port ${port}.`)
  console.error('')
  console.error('  start your app dev server, then open it in rnx:')
  console.error('    npx expo start --localhost --port 8081')
  console.error('    rnx open 8081')
  console.error('')
  console.error('  then inspect the live app:')
  console.error('    rnx describe')
}

// printed when a command targeted a specific `--sim <id>` that the bridge
// does not know — distinct from printMissingSimHint, which assumes the bridge
// has no sims at all. when other sims *are* connected, "no sim is connected"
// is a flat-out lie; list the valid ids instead so the user can pick one.
export async function printUnknownSimHint(
  bridge: { listSims: () => Promise<BridgeSimInfo[]> },
  port: number,
  requestedId: string,
) {
  let sims: BridgeSimInfo[] = []
  try {
    sims = await bridge.listSims()
  } catch {
    // bridge unreachable while reporting — fall through to the generic hint
  }
  console.error('')
  if (sims.length === 0) {
    printMissingSimHint(port)
    return
  }
  console.error(
    `  no sim with id "${requestedId}" is connected to the bridge on port ${port}.`,
  )
  console.error('')
  console.error('  connected sims:')
  for (const sim of sims) {
    const flags = [
      sim.isPrimary ? 'primary' : null,
      sim.readyState,
      sim.userVisible === false ? 'hidden' : sim.userVisible === true ? 'visible' : null,
      sim.userFocused ? 'focused' : null,
    ]
      .filter(Boolean)
      .join(', ')
    console.error(`    ${sim.id}  (${flags})`)
  }
  console.error('')
  console.error('  pass a valid --sim id, or run `rnx list` to see all sessions.')
}