class Sentry::StacktraceBuilder

def build(backtrace:, &frame_callback)
  parsed_lines = parse_backtrace_lines(backtrace).select(&:file)
  frames = parsed_lines.reverse.map do |line|
    frame = convert_parsed_line_into_frame(line)
    frame = frame_callback.call(frame) if frame_callback
    frame
  end.compact
  StacktraceInterface.new(frames: frames)
end

def convert_parsed_line_into_frame(line)
  frame = StacktraceInterface::Frame.new(project_root, line)
  frame.set_context(linecache, context_lines) if context_lines
  frame
end

def initialize(project_root:, app_dirs_pattern:, linecache:, context_lines:, backtrace_cleanup_callback: nil)
  @project_root = project_root
  @app_dirs_pattern = app_dirs_pattern
  @linecache = linecache
  @context_lines = context_lines
  @backtrace_cleanup_callback = backtrace_cleanup_callback
end

def parse_backtrace_lines(backtrace)
  Backtrace.parse(
    backtrace, project_root, app_dirs_pattern, &backtrace_cleanup_callback
  ).lines
end