Play selected video using media player

[nimcoon.git] / clitube.nim

import htmlparser
import httpClient
import os
import osproc
import sequtils, sugar
import strtabs
import strutils
import uri
import xmltree

# Supported video players in order of preference
let supportedPlayers = @["mpv", "mplayer", "vlc"]

# Only show these many results
let limit = 10

# Hard-coded terminal colors
proc reset(): string {.procvar.} = "\e[0m"
proc bold*(s: string): string {.procvar.} = "\e[1m" & s & reset()

proc fgMagenta*(s: string): string {.procvar.} = "\e[35m" & s & reset()
proc fgCyan*(s: string): string {.procvar.} = "\e[36m" & s & reset()

type SearchResult = tuple[title: string, url: string]

proc selectMediaPlayer(): string =
  let availablePlayers = filterIt(supportedPlayers, execProcess("which " & it).len != 0)
  if len(availablePlayers) == 0:
    echo "Please install one of the supported media players: ", supportedPlayers
    raise newException(OSError, "No supported media player found")
  else:
    return availablePlayers[0]

proc getYoutubePage(searchQuery: string): string =
  let queryParam = encodeUrl(searchQuery)
  var client = newHttpClient()
  let response = get(client, "https://www.youtube.com/results?hl=en&search_query=" & queryParam)
  writeFile("/tmp/cli-tube-page.html", response.body)
  return "/tmp/cli-tube-page.html"

proc extractTitlesAndUrls(htmlFile: string): seq[SearchResult] =
  loadHtml(htmlFile).findAll("a").
    filter(a => "watch" in a.attrs["href"] and a.attrs.hasKey "title").
    map(a => (a.attrs["title"], "https://www.youtube.com" & a.attrs["href"]))[..(limit-1)]

proc presentVideoOptions(searchResults: seq[SearchResult]) =
  echo ""
  for index, (title, url) in searchResults:
    echo index, ". ", title.bold.fgMagenta, "\n", url.fgCyan, "\n"

let searchResults = extractTitlesAndUrls(getYoutubePage(paramStr(1)))

presentVideoOptions(searchResults)

stdout.write "Choose video number: "
var number: int = parseInt(readLine(stdin))

var player = selectMediaPlayer()
echo "\n", "Playing ", searchResults[number].title.bold.fgMagenta

# Play the video in the media player
discard execProcess(player & " " & searchResults[number].url)