# frozen_string_literal: true

module Notare
  class Style
    attr_reader :name, :bold, :italic, :underline, :strike, :highlight, :color, :size, :font,
                :align, :indent, :spacing_before, :spacing_after

    ALIGNMENTS = %i[left center right justify].freeze
    HIGHLIGHT_COLORS = %w[
      black blue cyan darkBlue darkCyan darkGray darkGreen darkMagenta
      darkRed darkYellow green lightGray magenta red white yellow
    ].freeze

    def initialize(name, bold: nil, italic: nil, underline: nil, strike: nil,
                   highlight: nil, color: nil, size: nil, font: nil, align: nil,
                   indent: nil, spacing_before: nil, spacing_after: nil)
      @name = name
      @bold = bold
      @italic = italic
      @underline = underline
      @strike = strike
      @highlight = validate_highlight(highlight)
      @color = normalize_color(color)
      @size = size
      @font = font
      @align = validate_align(align)
      @indent = indent
      @spacing_before = spacing_before
      @spacing_after = spacing_after
    end

    def style_id
      name.to_s.split("_").map(&:capitalize).join
    end

    def display_name
      name.to_s.split("_").map(&:capitalize).join(" ")
    end

    def paragraph_properties?
      !!(align || indent || spacing_before || spacing_after)
    end

    def text_properties?
      !!(bold || italic || underline || strike || highlight || color || size || font)
    end

    # Size in half-points for OOXML (14pt = 28 half-points)
    def size_half_points
      size ? (size * 2).to_i : nil
    end

    private

    def normalize_color(color)
      return nil if color.nil?

      hex = color.to_s.sub(/^#/, "").upcase
      return hex if hex.match?(/\A[0-9A-F]{6}\z/)

      raise ArgumentError, "Invalid color: #{color}. Use 6-digit hex (e.g., 'FF0000')"
    end

    def validate_align(align)
      return nil if align.nil?
      return align if ALIGNMENTS.include?(align)

      raise ArgumentError, "Invalid alignment: #{align}. Use #{ALIGNMENTS.join(", ")}"
    end

    def validate_highlight(highlight)
      return nil if highlight.nil?

      color = highlight.to_s
      return color if HIGHLIGHT_COLORS.include?(color)

      raise ArgumentError, "Invalid highlight color: #{highlight}. Use one of: #{HIGHLIGHT_COLORS.join(", ")}"
    end
  end
end