Full search implementation

index.ts

app.intent('Play', async (conv: Conv, params: {search: string}) => {
  // "Forest: Day" -> "forest day"
  const search = params.search.toLowerCase()
  const searchResults = []

  for (const track of conv.data.json.tracks) {
    const title = track.track_title.replace(/:/g, '').toLowerCase()
    const genres = track.track_genre.map((g: string) => g.toLowerCase())
    const tags = track.tags.map((t: string) => t.toLowerCase())
    if (title.indexOf(search) > -1) {
      conv.ask(`Here is ${track.track_title}.`)
      conv.ask(generateMediaResponse(track))
      conv.ask(getSuggestions(conv.data.json.tracks))
      conv.data.currentTrack = track
      return
    }
    if (genres.includes(search) || tags.includes(search)) {
      // Pick a random item from the result
      searchResults.push(track)
    }
  }
  if (searchResults.length) {
      const track = searchResults[Math.floor(Math.random() * searchResults.length)]
      conv.ask(`I found several tracks for the category ${search}. Here is one at random: `+
        `${track.track_title}.`)
      conv.ask(generateMediaResponse(track))
      conv.ask(getSuggestions(conv.data.json.tracks))
      conv.data.currentTrack = track
      return
  }
  const suggestions: Suggestions = getSuggestions(conv.data.json.tracks)
  conv.ask(`I can't find a track with that description, but I found others like ` +
      `${suggestions.suggestions[0].title}. ` +
      `What would you like to listen to?`)
  conv.ask(suggestions)
})