import test from 'node:test'
import assert from 'node:assert/strict'
import { mkdtempSync } from 'node:fs'
import { tmpdir } from 'node:os'
import path from 'node:path'
import { buildApp } from '../src/app.js'
import { settingsStore } from '../src/settings.js'
import { ntfySettings, ntfyNotifier } from '../src/ntfy.js'
import { makeTesters } from '../src/testers.js'

function tmpDataDir() {
  return mkdtempSync(path.join(tmpdir(), 'lyssnarr-test-'))
}

const baseConfig = {
  appPassword: 'testlösen',
  sessionSecret: 'x'.repeat(32),
  dataDir: '/tmp',
  lidarr: { url: 'http://stub', apiKey: 'k', qualityProfileId: 3, metadataProfileId: 1, rootFolder: '/music' },
  jellyfin: { url: 'http://jellyfin:8096', apiKey: '' },
  gemini: { apiKey: '', model: 'gemini-2.5-flash' },
  ntfy: { url: 'https://ntfy.env-fallback', topic: '' },
}

async function loggedIn(app) {
  const login = await app.inject({ method: 'POST', url: '/api/login', payload: { password: 'testlösen' } })
  return login.headers['set-cookie']
}

test('ntfySettings: sparat har företräde, env är fallback, enabled kräver explicit true', () => {
  const def = ntfySettings(baseConfig, {})
  assert.equal(def.enabled, false)
  assert.equal(def.url, 'https://ntfy.env-fallback')

  const s = ntfySettings(baseConfig, { ntfy: { url: 'https://ntfy.ui/', topic: 'media-hamtningar', enabled: true } })
  assert.equal(s.enabled, true)
  assert.equal(s.url, 'https://ntfy.ui', 'avslutande / ska trimmas')
  assert.equal(s.topic, 'media-hamtningar')

  const utanConfig = ntfySettings({}, {})
  assert.equal(utanConfig.url, '', 'config utan ntfy-sektion får inte krascha')
})

test('publish skickar bara när påslagen och komplett', async () => {
  const store = settingsStore(tmpDataDir())
  const sent = []
  const fetchImpl = async (url, opts) => {
    sent.push({ url, body: JSON.parse(opts.body) })
    return { ok: true }
  }
  const notifier = ntfyNotifier({ config: baseConfig, store, fetchImpl })

  assert.equal(await notifier.publish('t', 'm'), false, 'avstängd => inget skickas')
  assert.equal(sent.length, 0)

  store.save({ ntfy: { url: 'https://ntfy.test', topic: 'media-hamtningar', enabled: true } })
  assert.equal(await notifier.publish('Tillagt', 'Powerwolf – Interludium'), true)
  assert.equal(sent.length, 1)
  assert.deepEqual(sent[0].body, {
    topic: 'media-hamtningar',
    title: 'Tillagt',
    message: 'Powerwolf – Interludium',
    tags: ['musical_note'],
  })
})

test('POST /api/add notifierar vid nytt tillägg men inte vid dubblett', async () => {
  const hit = {
    album: {
      foreignAlbumId: 'mbid-album-1',
      title: 'Interludium',
      artist: { artistName: 'Powerwolf', foreignArtistId: 'mbid-artist-1' },
    },
  }
  const lidarr = {
    search: async () => [hit],
    addAlbum: async () => ({}),
  }
  const published = []
  const ntfy = {
    settings: () => ({ enabled: true, url: 'x', topic: 'y' }),
    publish: async (title, message) => {
      published.push({ title, message })
      return true
    },
  }
  const app = buildApp(baseConfig, { lidarr, musicbrainz: {}, store: settingsStore(tmpDataDir()), ntfy })
  const cookie = await loggedIn(app)

  const res = await app.inject({
    method: 'POST',
    url: '/api/add',
    headers: { cookie },
    payload: { kind: 'album', mbid: 'mbid-album-1' },
  })
  assert.equal(res.statusCode, 200)
  assert.deepEqual(res.json(), { ok: true, already: false })
  // fire-and-forget: ge event-loopen ett varv
  await new Promise((r) => setImmediate(r))
  assert.equal(published.length, 1)
  assert.equal(published[0].title, 'Tillagt för nedladdning')
  assert.equal(published[0].message, 'Powerwolf – Interludium')

  hit.album.id = 42 // finns redan i Lidarr
  const dup = await app.inject({
    method: 'POST',
    url: '/api/add',
    headers: { cookie },
    payload: { kind: 'album', mbid: 'mbid-album-1' },
  })
  assert.deepEqual(dup.json(), { ok: true, already: true })
  await new Promise((r) => setImmediate(r))
  assert.equal(published.length, 1, 'dubblett ska inte notifiera')
  await app.close()
})

test('misslyckad notis fäller inte add-svaret', async () => {
  const hit = {
    artist: { foreignArtistId: 'mbid-artist-1', artistName: 'Powerwolf' },
  }
  const lidarr = { search: async () => [hit], addArtist: async () => ({}) }
  const ntfy = {
    settings: () => ({ enabled: true, url: 'x', topic: 'y' }),
    publish: async () => {
      throw new Error('ntfy nere')
    },
  }
  const app = buildApp(baseConfig, { lidarr, musicbrainz: {}, store: settingsStore(tmpDataDir()), ntfy })
  const cookie = await loggedIn(app)
  const res = await app.inject({
    method: 'POST',
    url: '/api/add',
    headers: { cookie },
    payload: { kind: 'artist', mbid: 'mbid-artist-1' },
  })
  assert.equal(res.statusCode, 200)
  assert.deepEqual(res.json(), { ok: true, already: false })
  await app.close()
})

test('PUT + GET /api/settings hanterar ntfy-sektionen, enabled=false består', async () => {
  const store = settingsStore(tmpDataDir())
  const app = buildApp(baseConfig, { lidarr: {}, musicbrainz: {}, store })
  const cookie = await loggedIn(app)

  await app.inject({
    method: 'PUT',
    url: '/api/settings',
    headers: { cookie },
    payload: { ntfy: { url: 'https://ntfy.test', topic: 'media-hamtningar', enabled: true } },
  })
  let body = (await app.inject({ method: 'GET', url: '/api/settings', headers: { cookie } })).json()
  assert.deepEqual(body.ntfy, { enabled: true, url: 'https://ntfy.test', topic: 'media-hamtningar' })

  await app.inject({
    method: 'PUT',
    url: '/api/settings',
    headers: { cookie },
    payload: { ntfy: { enabled: false } },
  })
  body = (await app.inject({ method: 'GET', url: '/api/settings', headers: { cookie } })).json()
  assert.equal(body.ntfy.enabled, false, 'false ska sparas, inte ignoreras')
  assert.equal(body.ntfy.topic, 'media-hamtningar', 'övriga fält ska behållas')
  await app.close()
})

test('ntfy-testern skickar testnotis och skiljer på saknad konfig', async () => {
  const store = settingsStore(tmpDataDir())
  const sent = []
  const fetchImpl = async (url, opts) => {
    sent.push(JSON.parse(opts.body))
    return { ok: true }
  }
  const testers = makeTesters({ config: { ...baseConfig, ntfy: { url: '', topic: '' } }, store, fetchImpl })
  assert.equal((await testers.ntfy()).ok, false, 'utan konfig => fel')

  store.save({ ntfy: { url: 'https://ntfy.test', topic: 'media-hamtningar' } })
  const out = await testers.ntfy()
  assert.equal(out.ok, true)
  assert.match(out.message, /avstängda/, 'ska påminna om att notiser inte är påslagna')
  assert.equal(sent.length, 1)
  assert.equal(sent[0].topic, 'media-hamtningar')
})