import { storeJson } from './fileModels/storeJson'
import { i18n } from './i18n'
import { sdk } from './sdk'
import {
  dataDir,
  DEFAULT_OPERATOR_RELAY,
  DEFAULT_PLATFORM_MODE,
  SPACED_RPC_URL,
  SPACED_WALLETLOAD_NAME,
  spacesDataDir,
  uiPort,
} from './utils'

type SpacedAuth = { username: string; password: string }

export const main = sdk.setupMain(async ({ effects }) => {
  console.info(i18n('Starting SpacesOps!'))

  // Read with .const() so a store.json change (e.g. from Import Operator Key or
  // Configure Platform) triggers an automatic service restart.
  const store = await storeJson.read().const(effects)
  if (
    !store?.operatorSecretHex ||
    !store?.operatorPublicHex ||
    !store?.sessionSecret
  ) {
    // taskOperatorKeys + taskSessionSecret seed these in init; if they aren't
    // populated yet, init hasn't finished — let StartOS restart us.
    throw new Error(
      'SpacesOps store.json is not yet populated (operator keys / session secret missing).',
    )
  }

  // Mount our own volume at /data AND the Spaces 'main' volume (read-only) at
  // /spaces-data so we can read the spaced RPC credentials Spaces seeded there.
  const mounts = sdk.Mounts.of()
    .mountVolume({
      volumeId: 'main',
      subpath: null,
      mountpoint: dataDir,
      readonly: false,
    })
    .mountDependency({
      dependencyId: 'spaces',
      volumeId: 'main',
      subpath: null,
      mountpoint: spacesDataDir,
      readonly: true,
      type: 'directory',
    })

  const sub = await sdk.SubContainer.of(
    effects,
    { imageId: 'spacesops' },
    mounts,
    'spacesops-sub',
  )

  // setupMain runs in the StartOS runtime, NOT inside the container, so it
  // cannot fs-read the mounted Spaces volume directly. Exec a read inside the
  // subcontainer instead (mirrors how spaces-startos execs space-cli for its
  // sync health check). Throw if the creds aren't there yet — StartOS restarts
  // us until Spaces is installed and its store.json is seeded.
  const probe = await sub.exec(['cat', `${spacesDataDir}/store.json`])
  if (probe.exitCode !== 0) {
    throw new Error(
      `Spaces RPC creds not available yet: could not read ${spacesDataDir}/store.json (exit ${probe.exitCode}). Is the Spaces service installed?`,
    )
  }
  let spacesStore: { spacedAuth?: SpacedAuth | null }
  try {
    spacesStore = JSON.parse((probe.stdout ?? '').toString())
  } catch {
    throw new Error(
      'Spaces RPC creds not available yet: Spaces store.json is not valid JSON.',
    )
  }
  const spacedAuth = spacesStore.spacedAuth
  if (!spacedAuth || !spacedAuth.username || !spacedAuth.password) {
    throw new Error(
      'Spaces RPC creds not available yet: spacedAuth missing from Spaces store.json. Wait for the Spaces service init to finish.',
    )
  }

  const env: Record<string, string> = {
    // The app defaults to 127.0.0.1:3000, which the StartOS proxy cannot reach.
    PLATFORM_HOST: '0.0.0.0',
    PLATFORM_PORT: String(uiPort),
    PLATFORM_DB_PATH: `${dataDir}/local.db`,
    PLATFORM_MODE: store.platformMode ?? DEFAULT_PLATFORM_MODE,
    PLATFORM_SESSION_SECRET: store.sessionSecret,
    OPERATOR_SECRET_HEX: store.operatorSecretHex,
    OPERATOR_PUBLIC_HEX: store.operatorPublicHex,
    OPERATOR_RELAY: store.operatorRelay ?? DEFAULT_OPERATOR_RELAY,
    SPACED_RPC_URL,
    SPACED_RPC_USER: spacedAuth.username,
    SPACED_RPC_PASSWORD: spacedAuth.password,
    SPACED_WALLETLOAD_NAME,
  }

  // Optional integrations — only injected when configured (Configure Platform).
  if (store.coingeckoApiKey) env.COINGECKO_API_KEY = store.coingeckoApiKey
  if (store.coingeckoTokenCoins)
    env.COINGECKO_TOKEN_COINS = store.coingeckoTokenCoins
  if (store.subsdUrl) env.SUBSD_URI_VALUE = store.subsdUrl
  if (store.subsdUser) env.SUBSD_RPC_USER = store.subsdUser
  if (store.subsdPassword) env.SUBSD_RPC_PASSWORD = store.subsdPassword

  return sdk.Daemons.of(effects).addDaemon('spacesops', {
    subcontainer: sub,
    exec: {
      // Keep the image entrypoint: it creates /data dirs, symlinks
      // /app/data -> /data, and loads defaults for any UNSET vars before
      // exec'ing the command.
      command: ['/app/docker-entrypoint.sh', 'node', 'server.js'],
      env,
      cwd: '/app',
      user: 'root',
    },
    ready: {
      display: i18n('Web Interface'),
      fn: () =>
        sdk.healthCheck.checkPortListening(effects, uiPort, {
          successMessage: i18n('The web interface is ready'),
          errorMessage: i18n('The web interface is not ready'),
        }),
      gracePeriod: 60_000,
    },
    requires: [],
  })
})