class Envirobly::Git::Commit

def archive_and_upload(bucket:, credentials:)
  git(%(archive --format=tar.gz #{ref} | #{credentials.as_inline_env_vars} aws s3 cp - #{archive_uri(bucket)}))
end

def archive_uri(bucket)
  "s3://#{bucket}/#{ref}.tar.gz"
end

def dir_exists?(path)
  suffix = path.end_with?("/") ? nil : "/"
  git(%(cat-file -t #{@ref}:#{path}#{suffix})).stdout.strip == "tree"
end

def exists?
  git(%(cat-file -t #{@ref})).stdout.strip == "commit"
end

def file_content(path)
  git(%(show #{@ref}:#{path})).stdout
end

def file_exists?(path)
  git(%(cat-file -t #{@ref}:#{path})).stdout.strip == "blob"
end

def git(cmd)
  Open3.popen3("git #{cmd}", chdir: @working_dir) do |stdin, stdout, stderr, thread|
    stdin.close
    OUTPUT.new stdout.read, stderr.read, thread.value.exitstatus, thread.value.success?
  end
end

def initialize(ref, working_dir: Dir.getwd)
  @ref = ref
  @working_dir = working_dir
end

def message
  git(%(log #{@ref} -n1 --pretty=%B)).stdout.strip
end

def objects_with_checksum_at(path)
  git(%{ls-tree #{@ref} --format='%(objectname) %(path)' #{path}}).stdout.lines.map(&:chomp).
    reject { _1.split(" ").last == Envirobly::Config::DIR }
end

def ref
  @normalized_ref ||= git(%(rev-parse #{@ref})).stdout.strip
end

def time
  Time.parse git(%(log #{@ref} -n1 --date=iso --pretty=format:"%ad")).stdout
end