import subprocess
import tempfile

from bureau import Bureau, add_api


class Photography(Bureau):
    """
    The Photography dept. provides document camera and other image
    capture services for the Office.
    """

    name = "Photography Dept."
    prefix = "PX"
    version = 0

    def __init__(self):
        Bureau.__init__(self)

    @add_api("photo", "Get Document Photo")
    def print_fortune(self, data):
        """
        Takes a photograph using the document camera.  Returns
        the file name.
        """
        try:
            cb = data["callback"]
        except KeyError as e:
            print(e)
            # TODO: this should log a real error
            return
        tmpimg = tempfile.NamedTemporaryFile(suffix=".jpg", delete=False)
        tmpimg.close()
        cmd = "fswebcam --jpeg 95 --no-banner --resolution 1920x1080 -D 0.5 "
        cmd += "-F 2 " + tmpimg.name
        subprocess.check_output(cmd.split())
        self.send(cb, {"photo": tmpimg.name})


if __name__ == "__main__":
    px = Photography()
    px.run()