#!/usr/bin/env ruby

ROOT = ARGV[0]
SNIPPETS = File.join(File.dirname(__FILE__), "snippets")

def nav cat
  html = "<nav>"
  html += "<a href='/about.html'><img src='/pdp8.png' id='logo' alt='pdp8'></a>"
  ["music", "pictures", "videos", "code", "newsletter"].each do |c|
    c == cat ? cl = 'item current' : cl = 'item'
    html += "<a class='#{cl}' href='/#{c}.html'>#{c}</a>"
  end
  html += "<a id='menu' href='#' onclick='show_vertical_menu()'>"
  html += "<div class='fa fa-bars' aria-hidden='true'></div>"
  html += "</a>"
  html += "</nav>"
  html
end

def file_html basename
  path = File.join(SNIPPETS, basename + ".html")
  html = File.read(File.join(SNIPPETS, "head.html"))
  html += nav basename
  html += "<div class='post'>"
  html += File.read(path)
  html += "</div>"
  html += File.read(File.join(SNIPPETS, "tail.html"))
  print_html basename, html
end

def print_html basename, html
  out = File.join(ROOT, basename + ".html")
  puts out
  File.open(out, "w+") { |f| f.puts html }
  puts `tidy -iqm -w 0 #{out} 2>&1`
end

def music_html
  music = Dir[File.join(ROOT, "music", "*")].sort.reverse
  music.each_with_index do |dir, i|
    html = File.read(File.join(SNIPPETS, "head.html"))
    html += nav "music"
    html += "<div class='post'>"
    title = File.basename(dir).split("_")[1..-1].join(" ")
    html += "<h1>#{title}</h1>"
    html += File.read(File.join(dir, "README")) + "<p>"
    cover = File.join("/", dir.sub(ROOT, ''), "cover.jpeg")
    html += "<a title='Download cover.jpeg' href='#{cover}' download>
        <img src='#{cover}' alt='cover'></a>
        <p>"
    Dir[File.join(dir, "*mp3")].each do |f|
      f = "/" + f.sub(ROOT, '')
      html += "<audio controls>
        <source src='#{f}' type='audio/mpeg'>
        <a href='#{f}'>#{f}</a>
        </audio>&nbsp;
        <a title='Download #{f}' href='#{f}' class='btn' download>
          #{File.basename(f, '.mp3')}</a><br>
        "
    end
    bc = "https://pdp8.bandcamp.com/#{title.gsub(' ', '-')}"
    html += "<p>Bandcamp: <a href='#{bc}'>#{bc}</a>"
    html += "</div>"
    html += "<div class='pager'>"
    j = (i - 1) % music.size
    p = File.join("/", File.basename(music[j]) + ".html")
    html += "<a class='btn-left' href='#{p}'>
      <div class='fa fa-caret-left' aria-hidden='true'></div>&nbsp;previous
      </a>"
    html += ""
    j = (i + 1) % music.size
    n = File.join("/", File.basename(music[j]) + ".html")
    html += "<a class='btn-right' href='#{n}'>
      [#{i + 1}/#{music.size}] next <div class='fa fa-caret-right' aria-hidden='true'></div>
      </a>"

    html += "</div>"
    html += File.read(File.join(SNIPPETS, "tail.html"))
    print_html File.basename(dir), html
    if i == 0
      print_html "music", html
    end
  end
end

def video_html
  videos = Dir[File.join(ROOT, "videos", "*")].sort.reverse
  videos.each_with_index do |dir, i|
    html = File.read(File.join(SNIPPETS, "head.html"))
    html += nav "videos"
    html += "<div class='post'>"
    title = File.basename(dir).split("_")[1..-1].join(" ")
    html += "<h1>#{title}</h1>"
    txt = File.read(File.join(dir, "README"))
    txt = txt.gsub(/(http\S*)/, '<a href="\1">\1</a>')
    lines = txt.split("\n")
    html += lines.shift + "<p>"
    mp4 =   File.join("/videos", File.basename(dir), title.gsub(" ", "_") + ".mp4")
    webm = File.join("/videos", File.basename(dir), title.gsub(" ", "_") + ".webm")

    html += "<video controls>
        <source src='#{mp4}' type='video/mpeg'>
        <source src='#{webm}' type='video/webm'>
        <a href='#{mp4}'>#{mp4}</a>
        </video><p>
        "
    html += lines.join("<br>")
    html += "</div>"
    html += "<div class='pager'>"
    j = (i - 1) % videos.size
    p = File.join("/", File.basename(videos[j]) + ".html")
    html += "<a class='btn-left' href='#{p}'>
      <div class='fa fa-caret-left' aria-hidden='true'></div>&nbsp;previous
      </a>"
    html += ""
    j = (i + 1) % videos.size
    n = File.join("/", File.basename(videos[j]) + ".html")
    html += "<a class='btn-right' href='#{n}'>
      [#{i + 1}/#{videos.size}] next <div class='fa fa-caret-right' aria-hidden='true'></div>
      </a>"

    html += "</div>"
    html += File.read(File.join(SNIPPETS, "tail.html"))
    print_html File.basename(dir), html
    if i == 0
      print_html "videos", html
    end
  end
end

music_html
video_html

["about", "code", "pictures", "newsletter"].each do |basename|
  file_html basename
end

["pdp8.png", "style.css", "distances.js", "images.js"].each { |f| `rsync -av "#{File.join(SNIPPETS, f)}" "#{ROOT}"` }
`rsync -av #{File.join(SNIPPETS, "Fork-Awesome-1.2.0")} "#{ROOT}"`
# rss