class Riffer::Rig::Tools::Read

# File lib/riffer/rig/tools/read.rb, line 22
def call(context:, path:, offset: nil, limit: DEFAULT_LIMIT)
  resolved = File.expand_path(path, context&.[](:cwd))
  return error("File not found: #{path}", type: :not_found) unless File.file?(resolved)
  return error('offset must be >= 1', type: :invalid_argument) if offset && offset < 1

  start = offset ? offset - 1 : 0
  lines = File.readlines(resolved, chomp: true, encoding: Encoding::UTF_8)
  slice = (lines[start, limit] || []).map(&:scrub)

  numbered = slice.each_with_index.map do |line, i|
    format("%<lineno>6d\t%<text>s", lineno: start + i + 1, text: line)
  end

  text(numbered.join("\n"))
end