Implement styles

lib/ezdoc/style.rb

@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+module Ezdoc
+  class Style
+    attr_reader :name, :bold, :italic, :underline, :color, :size, :font,
+                :align, :indent, :spacing_before, :spacing_after
+
+    ALIGNMENTS = %i[left center right justify].freeze
+
+    def initialize(name, bold: nil, italic: nil, underline: 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
+      @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 || 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
+  end
+end