module YtReport

# File lib/yt_report.rb, line 13
def self.irc_color(fg, bg = nil)
  bg ? "#{IRC_CTRL}#{fg},#{bg}" : "#{IRC_CTRL}#{fg}"
end

# File lib/yt_report.rb, line 25
def decorate(value, style: STYLE_CHIP)
  return nil if value.nil? || value.to_s.strip.empty?

  "#{style}#{value}#{IRC_RESET}"
end

# File lib/yt_report.rb, line 98
def format_auth_pending_reply
  IrcReply.card(
    tag: "YT",
    title: "auth pending",
    body_lines: ["Authorization not complete yet — finish in your browser, then !yt auth status."],
    footer_parts: ["youtube.com"]
  )
end

# File lib/yt_report.rb, line 116
def format_auth_setup_reply
  IrcReply.card(
    tag: "YT",
    title: "setup",
    body_lines: YtConfig.signup_steps,
    footer_parts: ["manual Gmail signup", "youtube.com"]
  )
end

# File lib/yt_report.rb, line 85
def format_auth_start_reply(device)
  IrcReply.card(
    tag: "YT",
    title: "link account",
    body_lines: [
      "Visit #{device[:verification_url]} and enter code #{device[:user_code]}.",
      "Then PM !yt auth status to finish linking this bot persona.",
      "Gmail signup is manual — see !yt auth help for setup steps."
    ],
    footer_parts: ["device flow", "expires #{device[:expires_in]}s"]
  )
end

# File lib/yt_report.rb, line 107
def format_auth_success_reply(account)
  IrcReply.card(
    tag: "YT",
    title: "linked",
    body_lines: ["YouTube channel #{account['channel_title']} linked to this bot persona."],
    footer_parts: [account["channel_id"], "youtube.com"]
  )
end

# File lib/yt_report.rb, line 193
def format_error(message)
  IrcReply.error(tag: "YT", message: message)
end

# File lib/yt_report.rb, line 72
def format_help_reply
  IrcReply.card(
    tag: "YT",
    title: "commands",
    body_lines: [
      "Passive: post a YouTube link for video info.",
      "PM: !yt auth | auth status | logout",
      "Channel: !yt whoami | playlist list | show | create | delete | add | rem"
    ],
    footer_parts: ["youtube.com"]
  )
end

# File lib/yt_report.rb, line 143
def format_logout_reply
  IrcReply.card(
    tag: "YT",
    title: "logged out",
    body_lines: ["YouTube account unlinked from this bot persona."],
    footer_parts: ["youtube.com"]
  )
end

# File lib/yt_report.rb, line 35
def format_message(info)
  description = info[:description].to_s
  parts = []

  parts << decorate(info[:title], style: STYLE_TITLE)

  channel = info[:channel].to_s.strip
  parts << "#{STYLE_MUTED}by#{IRC_RESET} #{decorate(channel)}" unless channel.empty?

  duration = YtLookup.format_duration(info[:duration], info[:duration_text])
  parts << decorate(duration) unless duration.empty?

  quality = info[:quality].to_s.strip
  parts << decorate(quality) unless quality.empty?

  published = YtLookup.format_published_date(info[:published])
  parts << decorate(published) unless published.empty?

  views = YtLookup.format_views(info[:views])
  parts << decorate(views) unless views == "0 views"

  likes = YtLookup.format_likes(info[:likes])
  parts << decorate(likes) unless likes.empty?

  subscribers = YtLookup.format_subscribers(info[:subscribers])
  parts << decorate(subscribers) unless subscribers.empty?

  time_ago = YtLookup.format_time_ago(info[:published])
  parts << decorate(time_ago) unless time_ago.empty?

  message = parts.compact.join(" #{separator} ")
  unless description.empty?
    message = "#{message} #{STYLE_MUTED}—#{IRC_RESET} #{STYLE_MUTED}#{description}#{IRC_RESET}"
  end
  message
end

# File lib/yt_report.rb, line 184
def format_playlist_action_reply(action, detail)
  IrcReply.card(
    tag: "YT",
    title: action,
    body_lines: [detail],
    footer_parts: ["youtube.com"]
  )
end

# File lib/yt_report.rb, line 152
def format_playlist_list_reply(playlists)
  lines = playlists.map do |playlist|
    privacy = playlist[:privacy].to_s
    label = privacy.empty? ? playlist[:title] : "#{playlist[:title]} (#{privacy})"
    "#{playlist[:id]} — #{label}"
  end
  lines = ["No playlists yet."] if lines.empty?

  IrcReply.card(
    tag: "YT",
    title: "playlists",
    body_lines: lines,
    footer_parts: ["#{playlists.size} total", "youtube.com"]
  )
end

# File lib/yt_report.rb, line 168
def format_playlist_show_reply(playlist, items)
  title = playlist[:title].to_s
  lines = items.each_with_index.map do |item, index|
    pos = index + 1
    "#{pos}. #{item[:title]} — #{item[:video_id]}"
  end
  lines = ["Playlist is empty."] if lines.empty?

  IrcReply.card(
    tag: "YT",
    title: title,
    body_lines: lines.first(6),
    footer_parts: [playlist[:id], "#{items.size} videos", "youtube.com"]
  )
end

# File lib/yt_report.rb, line 197
def format_recent(channel_url:, body_line:)
  parts = []
  url = channel_url.to_s.strip
  parts << decorate(url, style: STYLE_BANNER) unless url.empty?

  body = body_line.to_s
  parts << body unless body.empty?

  parts.join(" #{separator} ")
end

# File lib/yt_report.rb, line 125
def format_whoami_reply(account)
  unless account
    return IrcReply.card(
      tag: "YT",
      title: "not linked",
      body_lines: ["No YouTube account linked — PM !yt auth to start device flow."],
      footer_parts: ["youtube.com"]
    )
  end

  IrcReply.card(
    tag: "YT",
    title: account["channel_title"].to_s,
    body_lines: ["YouTube channel linked to this bot persona."],
    footer_parts: [account["channel_id"], "youtube.com"]
  )
end

# File lib/yt_report.rb, line 31
def separator
  "#{STYLE_SEP}|#{IRC_RESET}"
end