#!/usr/bin/env ruby
# Copyright (C) 2023 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.

require 'rubygems'

begin
    require 'json'
rescue LoadError
    $stderr.puts "Error: some required gems are not installed!"
    $stderr.puts
    $stderr.puts "Try running:"
    $stderr.puts
    $stderr.puts "sudo gem install json"
    exit 1
end

def dump(database)
  database["traces"].each do |stackTrace|
    next if stackTrace["frames"].empty?
    line = stackTrace["frames"].reverse.map do |frame|
        hash, category, offset = frame["location"].split(":")
        "#{frame["name"]}#{hash}".gsub(/;/, '_').gsub(/[\n\r]/, ' ')
    end.join(';')
    puts "#{line} 1"
  end
end

def main
    json = nil
    if ARGV.empty?
        json = JSON.parse(STDIN.read)
    else
        json = JSON::parse(IO::read(ARGV[0]))
    end
    dump(json)
end

main