from __future__ import unicode_literals


class AgentSettings(object):
    """
    Agent port configuration.

    :ivar actuating_receiver_port: Port for receiving actuation commands.
    :vartype actuating_receiver_port: int
    :ivar main_receiver_port: Port for receiving main messages.
    :vartype main_receiver_port: int
    :ivar video_sender_port: Port used for sending video frames.
    :vartype video_sender_port: int
    :ivar audio_sender_port: Port used for sending audio data.
    :vartype audio_sender_port: int
    """
    def __init__(
        self, 
        actuating_receiver_port=5557, 
        main_receiver_port=5555,
        video_sender_port=5556, 
        audio_sender_port=5558,
    ):
        self.actuating_receiver_port = actuating_receiver_port
        self.main_receiver_port = main_receiver_port
        self.video_sender_port = video_sender_port
        self.audio_sender_port = audio_sender_port


class VideoConfig(object):
    """
    Video configuration constants.

    :ivar camera_index: Index of the camera used.
    :vartype camera_index: int
    :ivar resolution: Video resolution mode.
    :vartype resolution: int
    :ivar color_space: Color space identifier.
    :vartype color_space: int
    :ivar fps: Frames per second of the video stream.
    :vartype fps: int
    :ivar stream_name: Name of the video stream.
    :vartype stream_name: str
    :ivar image_buffer: Internal buffer size for video frames.
    :vartype image_buffer: int
    """
    def __init__(
        self,
        camera_index=0,
        resolution=2,
        color_space=11,
        fps=15,
        stream_name="Pepper Video",
        image_buffer=6,
    ):
        self.camera_index = camera_index
        self.resolution = resolution
        self.color_space = color_space
        self.fps = fps
        self.stream_name = stream_name  
        self.image_buffer  = image_buffer


class AudioConfig(object):
    """
    Audio configuration constants.

    :ivar sample_rate: Audio sampling rate in Hz.
    :vartype sample_rate: int
    :ivar chunk_size: Size of audio chunks to capture/process.
    :vartype chunk_size: int
    :ivar channels: Number of audio channels.
    :vartype channels: int
    """
    def __init__(self, sample_rate=16000, chunk_size=512, channels=1):
        self.sample_rate = sample_rate
        self.chunk_size = chunk_size
        self.channels = channels


class MainConfig(object):
    """
    Main system configuration.

    :ivar poll_timeout_ms: Timeout for polling events, in milliseconds.
    :vartype poll_timeout_ms: int
    :ivar max_handler_time_ms: Maximum allowed handler time, in milliseconds.
    :vartype max_handler_time_ms: int
    """
    def __init__(self, poll_timeout_ms=100, max_handler_time_ms=50):
        self.poll_timeout_ms = poll_timeout_ms
        self.max_handler_time_ms = max_handler_time_ms


class Settings(object):
    """
    Global settings container.

    :ivar agent_settings: Agent-related port configuration.
    :vartype agent_settings: AgentSettings
    :ivar video_config: Video stream configuration.
    :vartype video_config: VideoConfig
    :ivar audio_config: Audio stream configuration.
    :vartype audio_config: AudioConfig
    :ivar main_config: Main system-level configuration.
    :vartype main_config: MainConfig
    """
    def __init__(self, agent_settings=None, video_config=None, audio_config=None, main_config=None):
        self.agent_settings = agent_settings or AgentSettings()
        self.video_config = video_config or VideoConfig()
        self.audio_config = audio_config or AudioConfig()
        self.main_config = main_config or MainConfig()


settings = Settings()