import { mkdtempSync, rmSync } from 'fs'
import { tmpdir } from 'os'
import { join } from 'path'
import { afterEach, describe, expect, it } from 'vitest'
import { encodePairingOffer } from './pairing'
import {
  RuntimeEnvironmentStoreError,
  addEnvironmentFromPairingCode,
  listEnvironments
} from './runtime-environment-store'

function pairingCode(endpoint = 'ws://127.0.0.1:6768'): string {
  return encodePairingOffer({
    v: 2,
    endpoint,
    deviceToken: 'device-token',
    publicKeyB64: Buffer.from(new Uint8Array(32).fill(1)).toString('base64')
  })
}

describe('runtime environment store', () => {
  const tempDirs: string[] = []

  afterEach(() => {
    for (const dir of tempDirs.splice(0)) {
      rmSync(dir, { recursive: true, force: true })
    }
  })

  it('rejects duplicate server names instead of silently replacing the saved server', () => {
    const userDataPath = mkdtempSync(join(tmpdir(), 'orca-runtime-env-store-'))
    tempDirs.push(userDataPath)

    const first = addEnvironmentFromPairingCode(userDataPath, {
      name: 'dev box',
      pairingCode: pairingCode('ws://127.0.0.1:6768')
    })

    expect(() =>
      addEnvironmentFromPairingCode(userDataPath, {
        name: 'dev box',
        pairingCode: pairingCode('ws://192.0.2.10:6768')
      })
    ).toThrow(RuntimeEnvironmentStoreError)
    expect(listEnvironments(userDataPath)).toEqual([first])
  })
})