"""This component provides basic support for Foscam IP cameras."""
import logging

import voluptuous as vol

from homeassistant.components.camera import (
    Camera, PLATFORM_SCHEMA, SUPPORT_STREAM)
from homeassistant.const import (
    CONF_NAME, CONF_USERNAME, CONF_PASSWORD, CONF_PORT)
from homeassistant.helpers import config_validation as cv

_LOGGER = logging.getLogger(__name__)

CONF_IP = 'ip'
CONF_RTSP_PORT = 'rtsp_port'

DEFAULT_NAME = 'Foscam Camera'
DEFAULT_PORT = 88

FOSCAM_COMM_ERROR = -8

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
    vol.Required(CONF_IP): cv.string,
    vol.Required(CONF_PASSWORD): cv.string,
    vol.Required(CONF_USERNAME): cv.string,
    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
    vol.Optional(CONF_RTSP_PORT): cv.port
})


def setup_platform(hass, config, add_entities, discovery_info=None):
    """Set up a Foscam IP Camera."""
    add_entities([FoscamCam(config)])


class FoscamCam(Camera):
    """An implementation of a Foscam IP camera."""

    def __init__(self, device_info):
        """Initialize a Foscam camera."""
        from libpyfoscam import FoscamCamera

        super(FoscamCam, self).__init__()

        ip_address = device_info.get(CONF_IP)
        port = device_info.get(CONF_PORT)
        self._username = device_info.get(CONF_USERNAME)
        self._password = device_info.get(CONF_PASSWORD)
        self._name = device_info.get(CONF_NAME)
        self._motion_status = False

        self._foscam_session = FoscamCamera(
            ip_address, port, self._username, self._password, verbose=False)

        self._rtsp_port = device_info.get(CONF_RTSP_PORT)
        if not self._rtsp_port:
            result, response = self._foscam_session.get_port_info()
            if result == 0:
                self._rtsp_port = response.get('rtspPort') or \
                                  response.get('mediaPort')

    def camera_image(self):
        """Return a still image response from the camera."""
        # Send the request to snap a picture and return raw jpg data
        # Handle exception if host is not reachable or url failed
        result, response = self._foscam_session.snap_picture_2()
        if result == FOSCAM_COMM_ERROR:
            return None

        return response

    @property
    def supported_features(self):
        """Return supported features."""
        if self._rtsp_port:
            return SUPPORT_STREAM
        return 0

    @property
    def stream_source(self):
        """Return the stream source."""
        if self._rtsp_port:
            return 'rtsp://{}:{}@{}:{}/videoMain'.format(
                self._username,
                self._password,
                self._foscam_session.host,
                self._rtsp_port)
        return None

    @property
    def motion_detection_enabled(self):
        """Camera Motion Detection Status."""
        return self._motion_status

    def enable_motion_detection(self):
        """Enable motion detection in camera."""
        try:
            ret = self._foscam_session.enable_motion_detection()
            self._motion_status = ret == FOSCAM_COMM_ERROR
        except TypeError:
            _LOGGER.debug("Communication problem")
            self._motion_status = False

    def disable_motion_detection(self):
        """Disable motion detection."""
        try:
            ret = self._foscam_session.disable_motion_detection()
            self._motion_status = ret == FOSCAM_COMM_ERROR
        except TypeError:
            _LOGGER.debug("Communication problem")
            self._motion_status = False

    @property
    def name(self):
        """Return the name of this camera."""
        return self._name