"""
    schema: Observation Message sent by platforms when points of
    interest are found.
"""

hits_schema = {
    "type": "object",
    "properties": {
        "latitude": {
            "type": "number",
            "format": "float",
            "description": "Identified y-coordinate of point of interest",
            "example": 178.2,
        },
        "longitude": {
            "type": "number",
            "format": "float",
            "description": "Identified x-coordinate of point of interest",
            "example": -10.122,
        },
        "quality_of_point": {
            "type": "number",
            "format": "float",
            "description": "Quality/strength of points from features of"
            + " interest identified by platform.",  # TODO: DEFINE FORMAT.
            "example": 0.98,
        },
    },
    "required": ["latitude", "longitude"],
}

observation_schema = {
    "type": "object",
    "properties": {
        "message_type": {
            "type": "string",
            "description": "Type of message",
            "example": "observation",
            "enum": ["observation"],
        },
        "platform_ID": {
            "type": "string",
            "description": "Unique identifier for this platform",
            "example": "reav-x-1",
        },
        "points_of_interest": {
            "type": "array",
            "items": hits_schema,
            "description": "Points from features of interest identified by"
            + " platform if any found.",  # TODO: DEFINE FORMAT.
        },
        "region_surveyed": {
            "nullable": True,
            "description": "Region surveyed by given platform."
            + " GEOJSON",  # TODO: DEFINE FORMAT.
            "example": "",
        },
        "additional_data": {
            "description": "Placeholder field for any additional data",
            "example": {"sensor_payload": False},
        },
    },
    "required": ["message_type", "platform_ID"],
}