# frozen_string_literal: true

module Spandx
  class Database
    attr_reader :path, :url

    def initialize(url:)
      @url = url
      @path = path_for(url)
    end

    def update!
      dotgit? ? pull! : clone!
    end

    def read(file)
      full_path = File.join(path, file)
      IO.read(full_path) if File.exist?(full_path)
    end

    private

    def path_for(url)
      uri = URI.parse(url)
      name = uri.path.gsub(/\.git$/, '')
      File.expand_path(File.join(Dir.home, '.local', 'share', name))
    end

    def dotgit?
      File.directory?(File.join(path, '.git'))
    end

    def clone!
      system('git', 'clone', '--quiet', url, path)
    end

    def pull!
      within do
        system('git', 'pull', '--no-rebase', '--quiet', 'origin', 'master')
      end
    end

    def within
      Dir.chdir(path) do
        yield
      end
    end
  end
end