from sanic import response


def valid_royalty_params(royalty_params):
    assert sum([x['value'] for x in royalty_params]) == 10000, "Values of royalties should sum to 10000"
    for field_key, field_value in {
        'address': lambda x: isinstance(x, str),
        'value': lambda x: (isinstance(x, int) and 0 <= x <= 10000)
    }.items():
        assert field_key in royalty_params, f"No {field_key} provided"
        assert field_value(royalty_params[field_key]), f"Invalid {field_key} provided"
    return True


async def s_api_v1_blockchain_send_new_content_message(request):
    assert request.json, "No data provided"

    for field_key, field_value in {
        'title': lambda x: isinstance(x, str),
        'authors': lambda x: isinstance(x, list),
        'content': lambda x: isinstance(x, str),
        'image': lambda x: isinstance(x, str),
        'description': lambda x: isinstance(x, str),
        'price': lambda x: (isinstance(x, str) and x.isdigit()),
        'allowResale': lambda x: isinstance(x, bool),
        'royaltyParams': lambda x: (isinstance(x, dict) and valid_royalty_params(x)),

    }.items():
        assert field_key in request.json, f"No {field_key} provided"
        assert field_value(request.json[field_key]), f"Invalid {field_key} provided"

    assert request.json.get("title"), "No title provided"
    return response.json({"message": "Transaction requested"})


async def s_api_v1_blockchain_send_purchase_content_message(request):
    assert request.json, "No data provided"

    for field_key, field_value in {
        'content_address': lambda x: isinstance(x, str),
        'price': lambda x: (isinstance(x, str) and x.isdigit()),
    }.items():
        assert field_key in request.json, f"No {field_key} provided"
        assert field_value(request.json[field_key]), f"Invalid {field_key} provided"

    return response.json({"message": "Transaction requested"})