"""Support for Axis camera streaming."""

from homeassistant.components.camera import SUPPORT_STREAM
from homeassistant.components.mjpeg.camera import (
    CONF_MJPEG_URL,
    CONF_STILL_IMAGE_URL,
    MjpegCamera,
    filter_urllib3_logging,
)
from homeassistant.const import (
    CONF_AUTHENTICATION,
    CONF_DEVICE,
    CONF_HOST,
    CONF_MAC,
    CONF_NAME,
    CONF_PASSWORD,
    CONF_PORT,
    CONF_USERNAME,
    HTTP_DIGEST_AUTHENTICATION,
)
from homeassistant.helpers.dispatcher import async_dispatcher_connect

from .axis_base import AxisEntityBase
from .const import DOMAIN as AXIS_DOMAIN

AXIS_IMAGE = "http://{}:{}/axis-cgi/jpg/image.cgi"
AXIS_VIDEO = "http://{}:{}/axis-cgi/mjpg/video.cgi"
AXIS_STREAM = "rtsp://{}:{}@{}/axis-media/media.amp?videocodec=h264"


async def async_setup_entry(hass, config_entry, async_add_entities):
    """Set up the Axis camera video stream."""
    filter_urllib3_logging()

    serial_number = config_entry.data[CONF_MAC]
    device = hass.data[AXIS_DOMAIN][serial_number]

    config = {
        CONF_NAME: config_entry.data[CONF_NAME],
        CONF_USERNAME: config_entry.data[CONF_DEVICE][CONF_USERNAME],
        CONF_PASSWORD: config_entry.data[CONF_DEVICE][CONF_PASSWORD],
        CONF_MJPEG_URL: AXIS_VIDEO.format(
            config_entry.data[CONF_DEVICE][CONF_HOST],
            config_entry.data[CONF_DEVICE][CONF_PORT],
        ),
        CONF_STILL_IMAGE_URL: AXIS_IMAGE.format(
            config_entry.data[CONF_DEVICE][CONF_HOST],
            config_entry.data[CONF_DEVICE][CONF_PORT],
        ),
        CONF_AUTHENTICATION: HTTP_DIGEST_AUTHENTICATION,
    }
    async_add_entities([AxisCamera(config, device)])


class AxisCamera(AxisEntityBase, MjpegCamera):
    """Representation of a Axis camera."""

    def __init__(self, config, device):
        """Initialize Axis Communications camera component."""
        AxisEntityBase.__init__(self, device)
        MjpegCamera.__init__(self, config)

    async def async_added_to_hass(self):
        """Subscribe camera events."""
        self.unsub_dispatcher.append(
            async_dispatcher_connect(
                self.hass, self.device.event_new_address, self._new_address
            )
        )

        await super().async_added_to_hass()

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

    async def stream_source(self):
        """Return the stream source."""
        return AXIS_STREAM.format(
            self.device.config_entry.data[CONF_DEVICE][CONF_USERNAME],
            self.device.config_entry.data[CONF_DEVICE][CONF_PASSWORD],
            self.device.host,
        )

    def _new_address(self):
        """Set new device address for video stream."""
        port = self.device.config_entry.data[CONF_DEVICE][CONF_PORT]
        self._mjpeg_url = AXIS_VIDEO.format(self.device.host, port)
        self._still_image_url = AXIS_IMAGE.format(self.device.host, port)

    @property
    def unique_id(self):
        """Return a unique identifier for this device."""
        return "{}-camera".format(self.device.serial)
