module ThemePaint

# File lib/theme_paint.rb, line 21
def apply!(theme, network:, channel:, store: RabbotDb)
  rules = Array(theme[:paint_rules])
  plugins = rules.map { |rule| rule[:plugin].to_s }.uniq
  plugins.each do |name|
    PaintStore.remove_for_plugin!(network: network, channel: channel, plugin: name, store: store)
  end

  saved = []
  rules.each do |rule|
    lines = PaintSamples.lines(rule[:plugin])
    next unless lines

    line_index = rule[:line].to_i - 1
    next if line_index.negative? || line_index >= lines.length

    line_text = lines[line_index]
    result = IrcPaint.recolor_at(line_text, rule[:pos], fg: rule[:fg], bg: rule[:bg])
    saved << PaintStore.save_override!(
      network: network,
      channel: channel,
      override: {
        plugin: rule[:plugin],
        line: rule[:line],
        plain_start: result[:plain_start],
        plain_end: result[:plain_end],
        fg: result[:fg],
        bg: result[:bg],
        snippet: nil
      },
      store: store
    )
  end
  saved
end

# File lib/theme_paint.rb, line 15
def commands(theme, plugin: nil)
  rules = Array(theme[:paint_rules])
  rules = rules.select { |rule| rule[:plugin].to_s == plugin.to_s } if plugin
  rules.map { |rule| format_command(rule) }
end

# File lib/theme_paint.rb, line 56
def format_command(rule)
  colour = rule[:bg] ? "#{rule[:fg]},#{rule[:bg]}" : rule[:fg].to_s
  "!paint #{rule[:plugin]} #{rule[:line]} #{rule[:pos]} #{colour}"
end