Module: MarkdownAdapter

Defined in:
lib/taf/markdown_adapter.rb

Constant Summary collapse

TAG_PREFIX =

Markdown format constants

"#".freeze
TODO_PREFIX = 
"- [ ]".freeze
DONE_PREFIX = 
"- [x]".freeze
INDENT_SIZE =

Number of spaces per indent level

2

Class Method Summary collapse

Class Method Details

.flatten_item(item, indent_level, rows) ⇒ Object

Recursively flattens a tree item and its children



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# File 'lib/taf/markdown_adapter.rb', line 81

def self.flatten_item(item, indent_level, rows)
  prefix = item.status == "todo" ? TODO_PREFIX : DONE_PREFIX
  indent = ' ' * (indent_level * INDENT_SIZE)
  rows << "#{indent}#{prefix} #{item.text}"

  # Recursively add children
  item.children.each do |child|
    flatten_item(child, indent_level + 1, rows)
  end
end

.read(file) ⇒ Object

Reads markdown and returns data as a tree structure



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# File 'lib/taf/markdown_adapter.rb', line 12

def self.read(file)
  return {} unless File.exist?(file)

  rows = File
    .readlines(file)
    .map(&:rstrip)
    .reject { |line| line.nil? || line.empty? }

  {}.tap do |data|
    tag = TafHelper::DEFAULT_TAG
    # Stack to track parent at each indent level
    stack = []

    rows.each do |row|
      if row.start_with?("#{TAG_PREFIX} ")
        tag = row.delete_prefix("#{TAG_PREFIX} ")
        data[tag] ||= []
        stack = [] # Reset stack for new tag
      elsif tag.nil?
        next
      else
        # Calculate indent level from leading spaces
        leading_spaces = row[/^\s*/].length
        indent_level = leading_spaces / INDENT_SIZE
        stripped_row = row.lstrip

        # Trim stack to current indent level
        stack = stack[0...indent_level]

        # Determine parent
        parent = indent_level > 0 ? stack[indent_level - 1] : nil

        # Create the item
        status = stripped_row.start_with?("#{TODO_PREFIX} ") ? "todo" : "done"
        prefix = status == "todo" ? TODO_PREFIX : DONE_PREFIX
        item = Todo.new(
          status: status,
          text: stripped_row.delete_prefix("#{prefix} "),
          children: [],
          parent: parent
        )

        # Add to parent's children or to root
        if indent_level == 0
          data[tag] << item
        else
          parent.children << item
        end

        # Push current item onto stack
        stack[indent_level] = item
      end
    end
  end
end

.write(file, data) ⇒ Object

Writes data to markdown file (flattens tree structure)



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# File 'lib/taf/markdown_adapter.rb', line 69

def self.write(file, data)
  rows = []
  data.each do |tag, items|
    rows << "#{TAG_PREFIX} #{tag}"
    items.each do |item|
      flatten_item(item, 0, rows)
    end
  end
  File.write(file, rows.join("\n"))
end