module WpaCliRuby
  class WpaCliWrapper
    def execute(cmd)
      %x[#{cmd}]
    end

    def self.available?
      system("which wpa_cli > /dev/null 2>&1")
    end

    def scan
      cmd = "wpa_cli scan"
      execute(cmd)
    end

    def scan_results
      cmd = "wpa_cli scan_results"
      execute(cmd)
    end

    def add_network
      cmd = "wpa_cli add_network"
      execute(cmd)
    end

    def set_network(network_id, key, value)
      value = "\"#{value}\"" unless value.is_a? Symbol
      cmd = "wpa_cli set_network #{network_id} #{key} '#{value}'"
      execute(cmd)
    end

    def get_network(network_id, key)
      cmd = "wpa_cli get_network #{network_id} #{key}"
      execute(cmd)
    end

    def enable_network(network_id)
      cmd = "wpa_cli enable_network #{network_id}"
      execute(cmd)
    end

    def save_config
      cmd = "wpa_cli save_config"
      execute(cmd)
    end
  end
end