module BannerReport

# File lib/banner_report.rb, line 90
def art_rows(heading, engine_picker:, runner:, glyphs: nil, engine_option: nil)
  id = engine_picker.call
  block_glyphs = id == :blocks ? glyphs : nil
  result = runner.render(id, heading, glyphs: block_glyphs, engine_option: engine_option)
  if result[:error]
    result = runner.render(:blocks, heading, glyphs: glyphs)
    id = :blocks
    engine_option = nil
  end
  { id: id, lines: result[:lines], option_label: engine_option&.fetch(:label) }
end

# File lib/banner_report.rb, line 83
def error_result(message)
  {
    error: true,
    reply: IrcReply.error(tag: REPLY_TAG, message: message, heading_style: STYLE_TITLE)
  }
end

# File lib/banner_report.rb, line 102
def footer_label(id, option_label)
  option_label ? "#{id} · #{option_label}" : id.to_s
end

# File lib/banner_report.rb, line 36
def format_command(args, engine_picker: nil, runner: BannerEngineRunner, network: nil, channel: nil, store: RabbotDb, rng: Random)
  parsed = BannerParse.parse(args)
  return error_result(parsed[:error]) if parsed[:error]

  picker = engine_picker || BannerEnginePick.picker_for(parsed[:engine])
  engine_option = parsed[:engine] ? BannerEngineOptions.pick(parsed[:engine], rng: rng) : nil

  {
    error: false,
    reply: format_reply(
      parsed,
      engine_picker: picker,
      runner: runner,
      network: network,
      channel: channel,
      store: store,
      engine_option: engine_option
    )
  }
end

# File lib/banner_report.rb, line 57
def format_reply(parsed, engine_picker:, runner:, network: nil, channel: nil, store: RabbotDb, engine_option: nil)
  style = title_style(fg: parsed[:title_fg], bg: parsed[:title_bg])
  lines = []
  lines << IrcFormat.report_header(tag: REPLY_TAG, title: parsed[:heading], style: style)

  glyphs = glyphs_for_channel(network: network, channel: channel, store: store)
  art = art_rows(parsed[:heading], engine_picker: engine_picker, runner: runner, glyphs: glyphs, engine_option: engine_option)
  colour_art = parsed.key?(:title_fg) || art[:id] == :blocks
  art[:lines].each do |row|
    line = colour_art ? IrcFormat.decorate(row, style) : row
    lines << line
  end

  parsed[:subheadings].each_with_index do |sub, index|
    style = SUB_STYLES[index % SUB_STYLES.length]
    label = IrcFormat.decorate(sub[:label], style)
    body = sub[:body].to_s
    line = body.empty? ? label : "#{label}#{IrcFormat::RESET} — #{body}"
    lines << line
  end

  footer = IrcFormat.report_footer(footer_label(art[:id], art[:option_label]), "banner")
  lines << footer unless footer.to_s.strip.empty?
  lines.join("\n")
end

# File lib/banner_report.rb, line 107
def glyphs_for_channel(network:, channel:, store: RabbotDb)
  return nil if network.to_s.strip.empty? || channel.to_s.strip.empty?

  BannerFontStore.effective_glyphs(network: network, channel: channel, store: store)
end

# File lib/banner_report.rb, line 29
def title_style(fg: nil, bg: nil)
  return STYLE_TITLE if fg.nil? && bg.nil?
  return IrcFormat.color(fg) if bg.nil?

  IrcFormat.color(fg, bg)
end