import { describe, it, expect } from 'vitest'
import { loadLib } from './helpers/loadLib.js'

const { chipState, chipLabel, panelDefaults, addRequest, renameOffer } = loadLib('chip.js', [
  'chipState',
  'chipLabel',
  'panelDefaults',
  'addRequest',
  'renameOffer'
])

const discord = (extra = {}) => ({
  platform: 'discord',
  slug: '111/222',
  discord: {
    server_id: '111',
    channel_id: '222',
    server_name: 'Studio',
    channel_name: 'drops',
    server_url: 'https://discord.com/channels/111',
    channel_url: 'https://discord.com/channels/111/222'
  },
  ...extra
})

describe('chip state and label', () => {
  it('keeps the one-click wording on creator platforms', () => {
    expect(chipLabel({ state: 'new', platform: 'patreon' }, 'Patreon')).toBe('+ Add to FabledCurator')
    expect(
      chipLabel({ state: 'artist_match', platform: 'patreon', artist: { name: 'Atole' } }, 'Patreon')
    ).toBe('+ Add Patreon source to Atole')
    expect(chipLabel({ state: 'source_match', platform: 'patreon' }, 'Patreon')).toBe(
      '✓ In FabledCurator · Patreon'
    )
  })

  it('offers the channel by name on Discord, whatever the suggestion', () => {
    expect(chipLabel(discord({ state: 'new' }), 'Discord')).toBe('+ Add #drops to FabledCurator')
    expect(chipLabel(discord({ state: 'artist_match', artist: { name: 'A' } }), 'Discord')).toBe(
      '+ Add #drops to FabledCurator'
    )
  })

  it('says "this channel" when the token could not read the name', () => {
    const p = discord({ state: 'new' })
    p.discord.channel_name = null
    expect(chipLabel(p, 'Discord')).toBe('+ Add this channel to FabledCurator')
  })

  it('says whose source a Discord channel already is, and when the server covers it', () => {
    const artist = { name: 'Tamada', slug: 'tamada' }
    expect(chipLabel(discord({ state: 'source_match', artist, covered_by_server: false }), 'Discord')).toBe(
      '✓ In FabledCurator · Tamada'
    )
    expect(chipLabel(discord({ state: 'source_match', artist, covered_by_server: true }), 'Discord')).toBe(
      '✓ Whole server in FabledCurator · Tamada'
    )
  })

  it('falls back to the generic add when the probe failed', () => {
    expect(chipState({ error: 'x' })).toBe('new')
    expect(chipLabel({ error: 'x' }, '')).toBe('+ Add to FabledCurator')
    expect(chipState({ state: 'source_match' })).toBe('source-match')
  })
})

describe('Add panel on Discord', () => {
  it('opens on the channel with the suggested artist preselected', () => {
    const d = panelDefaults(discord({ state: 'artist_match', artist: { id: 7, name: 'Tamada' } }))
    expect(d.scope).toBe('channel')
    expect(d.artist).toEqual({ id: 7, name: 'Tamada' })
    expect(d.artistName).toBe('Tamada')
  })

  it('proposes a new artist named after the server when nothing is suggested', () => {
    const d = panelDefaults(discord({ state: 'new' }))
    expect(d.artist).toBe(null)
    expect(d.artistName).toBe('Studio')
  })

  it('sends a picked artist by id', () => {
    const choice = panelDefaults(discord({ state: 'artist_match', artist: { id: 7, name: 'Tamada' } }))
    expect(addRequest(choice)).toEqual({
      url: 'https://discord.com/channels/111/222',
      artistId: 7
    })
  })

  it('sends a typed name once the picked artist has been edited away', () => {
    const choice = panelDefaults(discord({ state: 'artist_match', artist: { id: 7, name: 'Tamada' } }))
    choice.artistName = 'Tamada Alt'
    expect(addRequest(choice)).toEqual({
      url: 'https://discord.com/channels/111/222',
      artistName: 'Tamada Alt'
    })
  })

  it('adds the whole server when the operator picks it', () => {
    const choice = panelDefaults(discord({ state: 'new' }))
    choice.scope = 'server'
    expect(addRequest(choice).url).toBe('https://discord.com/channels/111')
  })

  it('has nothing to send without an artist', () => {
    const choice = panelDefaults(discord({ state: 'new' }))
    choice.artistName = '   '
    expect(addRequest(choice)).toBe(null)
  })
})

const { squashName, exactArtistMatch, inlineCompletion } = loadLib('chip.js', [
  'squashName',
  'exactArtistMatch',
  'inlineCompletion'
])

describe('artist matching for the Add panel', () => {
  const results = [
    { id: 1, name: 'TamadaHeijun' },
    { id: 2, name: 'Tamago' },
    { id: 3, name: 'Sabu Art' }
  ]

  it('treats spacing, case and punctuation as the same name', () => {
    expect(squashName('Tamada Heijun')).toBe('tamadaheijun')
    expect(squashName('sabu_art!')).toBe('sabuart')
    expect(squashName('玉田 平順')).toBe('玉田平順')
  })

  it('finds the result that is the query, spacing aside', () => {
    expect(exactArtistMatch('tamada heijun', results)).toEqual({ id: 1, name: 'TamadaHeijun' })
    expect(exactArtistMatch('Tama', results)).toBe(null)
    expect(exactArtistMatch('  ', results)).toBe(null)
  })

  it('autofills the first name that extends what was typed', () => {
    expect(inlineCompletion('tamad', results)).toEqual({ id: 1, name: 'TamadaHeijun' })
    expect(inlineCompletion('Sab', results).name).toBe('Sabu Art')
    // Nothing to add once the name is complete, or when nothing extends it.
    expect(inlineCompletion('Sabu Art', results)).toBe(null)
    expect(inlineCompletion('heijun', results)).toBe(null)
    expect(inlineCompletion('', results)).toBe(null)
  })
})

describe('Add panel on Patreon and SubscribeStar', () => {
  const PAGE = 'https://www.patreon.com/cw/tamadaheijun'
  const patreon = (extra = {}) => ({ platform: 'patreon', slug: 'tamadaheijun', ...extra })

  it('opens on the Patreon display name as a new artist', () => {
    const c = panelDefaults(patreon({ state: 'new', display_name: 'Tamada Heijun' }), PAGE)
    expect(c.scope).toBe('page')
    expect(c.artistName).toBe('Tamada Heijun')
    expect(addRequest(c)).toEqual({ url: PAGE, artistName: 'Tamada Heijun' })
  })

  it('leaves an untouched URL handle to the server to resolve', () => {
    const c = panelDefaults(patreon({ state: 'new' }), PAGE)
    expect(c.artistName).toBe('tamadaheijun')
    expect(addRequest(c)).toEqual({ url: PAGE })
    c.artistName = 'Someone Else'
    expect(addRequest(c)).toEqual({ url: PAGE, artistName: 'Someone Else' })
  })

  it('offers the Patreon name when joining an artist known by another name', () => {
    const c = panelDefaults(patreon({ state: 'new', display_name: 'Tamada Heijun' }), PAGE)
    c.artist = { id: 4, name: 'tamada' }
    c.artistName = 'tamada'
    expect(renameOffer(c)).toEqual({ from: 'tamada', to: 'Tamada Heijun' })
    expect(addRequest(c)).toEqual({ url: PAGE, artistId: 4, usePlatformName: true })
    c.adoptPlatformName = false
    expect(addRequest(c)).toEqual({ url: PAGE, artistId: 4 })
  })

  it('offers no rename when the names agree or the name was not read', () => {
    const same = panelDefaults(patreon({ state: 'new', display_name: 'Tamada Heijun' }), PAGE)
    same.artist = { id: 4, name: 'Tamada Heijun' }
    expect(renameOffer(same)).toBe(null)
    const unread = panelDefaults(patreon({ state: 'new' }), PAGE)
    unread.artist = { id: 4, name: 'tamada' }
    expect(renameOffer(unread)).toBe(null)
  })

  it('never renames from SubscribeStar or Discord — Patreon is the canon', () => {
    const ss = panelDefaults(
      { platform: 'subscribestar', slug: 'tamada', state: 'new', display_name: 'SS Tamada' },
      'https://subscribestar.adult/tamada'
    )
    ss.artist = { id: 4, name: 'Tamada Heijun' }
    ss.artistName = 'Tamada Heijun'
    expect(renameOffer(ss)).toBe(null)
    expect(addRequest(ss)).toEqual({ url: 'https://subscribestar.adult/tamada', artistId: 4 })
  })

  it('preselects the artist the URL already names', () => {
    const c = panelDefaults(patreon({ state: 'artist_match', artist: { id: 9, name: 'Tamada' } }), PAGE)
    expect(c.artist).toEqual({ id: 9, name: 'Tamada' })
    expect(c.artistName).toBe('Tamada')
  })
})