#!/bin/bash

set -euo pipefail

source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"

run_node_test <<'JS'
const tailscale = requireFromRoot('shell/plugins/panels/tailscale/Model.js')

assertDeepEqual(
  tailscale.filterIPv4(['100.64.0.1', 'fd7a:115c:a1e0::1', '192.168.1.2']),
  ['100.64.0.1'],
  'tailscale keeps only Tailscale IPv4 addresses'
)
assertDeepEqual(
  tailscale.filterIPv6(['100.64.0.1', 'fd7a:115c:a1e0::1', 'fe80::1']),
  ['fd7a:115c:a1e0::1'],
  'tailscale keeps only Tailscale IPv6 addresses'
)

assertEqual(tailscale.cleanDnsName('work.tailnet.ts.net.'), 'work.tailnet.ts.net', 'tailscale strips trailing DNS dot')
assertEqual(tailscale.displayHostName('localhost', 'work.tailnet.ts.net.'), 'work', 'tailscale falls back from localhost to short DNS name')

const status = tailscale.parseStatus(JSON.stringify({
  BackendState: 'Running',
  AuthURL: '',
  TailscaleIPs: ['100.74.97.73', 'fd7a:115c:a1e0::ff32:6149'],
  Self: {
    HostName: 'dhh-fd',
    DNSName: 'dhh-fd.tail32f559.ts.net.',
    TailscaleIPs: ['100.74.97.73']
  },
  Peer: {
    onlineB: {
      HostName: 'zed',
      DNSName: 'zed.tail32f559.ts.net.',
      TailscaleIPs: ['100.1.1.2'],
      Online: true,
      OS: 'linux',
      ExitNodeOption: true,
      ExitNode: true
    },
    offline: {
      HostName: 'offline',
      DNSName: 'offline.tail32f559.ts.net.',
      TailscaleIPs: ['100.1.1.3'],
      Online: false,
      OS: 'linux'
    },
    offlineExit: {
      HostName: 'mbu-ser9',
      DNSName: 'mbu-ser9.tail32f559.ts.net.',
      TailscaleIPs: ['100.125.28.77', 'fd7a:115c:a1e0::1037:1c4d'],
      Online: false,
      OS: 'linux',
      ExitNodeOption: true,
      ExitNode: false
    },
    onlineA: {
      HostName: 'alpha',
      DNSName: 'alpha.tail32f559.ts.net.',
      TailscaleIPs: ['100.1.1.1', 'fd7a:115c:a1e0::1901:334b'],
      Online: true,
      OS: 'macos'
    },
    mullvadExit: {
      HostName: 'al-tia-wg-003',
      DNSName: 'al-tia-wg-003.mullvad.ts.net.',
      TailscaleIPs: ['100.95.87.11'],
      Online: true,
      OS: 'linux',
      ExitNodeOption: true,
      ExitNode: false
    }
  }
}))

assert(status.ok && status.running, 'tailscale parses running status')
assertEqual(status.selfIp, '100.74.97.73', 'tailscale parses self IP')
assertDeepEqual(status.peers.map(peer => peer.HostName), ['alpha', 'zed'], 'tailscale filters offline and Mullvad peers and sorts online peers')
assertDeepEqual(status.peers[0].TailscaleIPv6, ['fd7a:115c:a1e0::1901:334b'], 'tailscale preserves peer IPv6 addresses for copy menu')
assert(status.peers[1].ExitNodeOption && status.peers[1].ExitNode, 'tailscale preserves exit node flags')
assertDeepEqual(status.exitNodes.map(peer => peer.HostName), ['zed'], 'tailscale lists only online tailnet exit nodes')
assert(tailscale.isMullvadPeer({ HostName: 'al-tia-wg-003', DNSName: 'al-tia-wg-003.mullvad.ts.net.' }), 'tailscale detects Mullvad status peers')

const mullvadNodes = tailscale.parseExitNodeList(`
 IP                  HOSTNAME                         COUNTRY            CITY                   STATUS
 100.65.216.13       au-adl-wg-301.mullvad.ts.net     Australia          Any                    -
 100.65.216.13       au-adl-wg-301.mullvad.ts.net     Australia          Adelaide               -
 100.70.240.117      au-bne-wg-301.mullvad.ts.net     Australia          Brisbane               -
 100.66.11.119       dk-cph-wg-001.mullvad.ts.net     Denmark            Copenhagen             -
 100.101.10.10       us-chi-wg-001.mullvad.ts.net     United States      Chicago                -
 100.102.10.10       us-nyc-wg-001.mullvad.ts.net     United States      New York               -
 100.1.2.3           office.tailnet.ts.net             Denmark            Office                 -

# To use an exit node, use tailscale set --exit-node=
`)

assertDeepEqual(
  mullvadNodes.map(node => node.DisplayName),
  ['Adelaide, Australia', 'Brisbane, Australia', 'Copenhagen, Denmark', 'Chicago, United States', 'New York, United States'],
  'tailscale parses Mullvad exit nodes and skips duplicate country rows'
)
assertEqual(mullvadNodes[2].DNSName, 'dk-cph-wg-001.mullvad.ts.net', 'tailscale preserves Mullvad hostname as exit node target')
assertDeepEqual(mullvadNodes[2].TailscaleIPs, ['100.66.11.119'], 'tailscale preserves Mullvad exit node IP')
assert(mullvadNodes.every(node => node.Mullvad === true && node.ExitNodeOption === true), 'tailscale marks Mullvad rows as exit nodes')

const mullvadRegions = tailscale.mullvadRegionOptions(mullvadNodes)
assertDeepEqual(
  mullvadRegions.map(node => node.DisplayName),
  ['Adelaide, Australia', 'Brisbane, Australia', 'Copenhagen, Denmark', 'Chicago, United States', 'New York, United States'],
  'tailscale groups Mullvad exit nodes by unique city region'
)
assertDeepEqual(
  mullvadRegions.filter(node => node.Country === 'United States').map(node => node.City),
  ['Chicago', 'New York'],
  'tailscale keeps multiple Mullvad cities within a country'
)
assertEqual(mullvadRegions[0].DNSName, 'au-adl-wg-301.mullvad.ts.net', 'tailscale uses a concrete city endpoint for grouped regions')
assertEqual(mullvadRegions[2].DNSName, 'dk-cph-wg-001.mullvad.ts.net', 'tailscale preserves first available city endpoint')

const stopped = tailscale.parseStatus(JSON.stringify({
  BackendState: 'Stopped',
  Peer: {
    online: {
      HostName: 'alpha',
      DNSName: 'alpha.tail32f559.ts.net.',
      TailscaleIPs: ['100.1.1.1'],
      Online: true,
      OS: 'macos'
    }
  }
}))

assert(stopped.ok && !stopped.running, 'tailscale parses stopped status')

const accounts = tailscale.parseAccounts(JSON.stringify([
  {
    id: 'db1b',
    nickname: 'Home',
    tailnet: 'dhh.github',
    account: 'dhh@github',
    selected: true
  },
  {
    id: '1785',
    nickname: 'Work',
    tailnet: '37signals.com',
    account: 'david@37signals.com',
    selected: false
  }
]))

assertEqual(accounts.accounts.length, 2, 'tailscale parses multiple connections')
assertEqual(accounts.selectedAccountId, 'db1b', 'tailscale records selected connection id')
assertEqual(accounts.selectedAccountLabel, 'Home', 'tailscale labels connections by nickname')
assertDeepEqual(
  accounts.accounts.map(account => account.nickname),
  ['Home', 'Work'],
  'tailscale preserves connection nicknames'
)
assertEqual(
  tailscale.accountLabel({ nickname: '', tailnet: 'tailnet.example', account: 'user@example', id: 'abcd' }),
  'tailnet.example',
  'tailscale labels connections by tailnet when nickname is missing'
)

assertDeepEqual(tailscale.parseStatus('{'), { ok: false, unavailable: true, message: 'Status error', error: 'Failed to parse tailscale status' }, 'tailscale reports invalid status JSON')
assertDeepEqual(tailscale.parseAccounts('{'), { accounts: [], selectedAccountId: '', selectedAccountLabel: '' }, 'tailscale handles invalid account JSON')
JS