{
    "doc": "A new player is registered in the atp ranking system.",
    "type": "record",
    "name": "PlayerRegistered",
    "namespace": "atp.players",
    "fields": [
        {
            "name": "player_id",
            "type": {
                "type": "string",
                "logicalType": "uuid"
            },
            "doc": "The unique identifier of the registered player (UUID)."
        },
        {
            "name": "full_name",
            "type": "string",
            "doc": "The full name of the registered player."
        },
        {
            "name": "rank",
            "type": "int",
            "doc": "The current ranking of the registered player, start counting from 1."
        },
        {
            "name": "registration_date",
            "type": {
                "type": "int",
                "logicalType": "date"
            },
            "doc": "The date when the player was registered (number of UTC days from the unix epoch)."
        },
        {
            "name": "sponsor_name",
            "type": [
                "null",
                "string"
            ],
            "doc": "The name of the current sponsor (optional)."
        },
        {
            "name": "trainer",
            "type": {
                "name": "Trainer",
                "type": "record",
                "fields": [
                    {
                        "name": "fullname",
                        "type": "string"
                    }
                ]
            }
        },
        {
            "name": "slams_won",
            "type": {
                "type": "array",
                "items": {
                    "type": "record",
                    "name": "Slam",
                    "namespace": "atp.tournaments",
                    "fields": [
                        {
                            "name": "name",
                            "type": "string",
                            "doc": "The name of the slam."
                        },
                        {
                            "name": "year",
                            "type": "int",
                            "doc": "The year the slam was won."
                        },
                        {
                            "name": "surface",
                            "type": {
                                "type": "enum",
                                "name": "Surface",
                                "symbols": [
                                    "CLAY",
                                    "GRASS",
                                    "HARD",
                                    "CARPET",
                                    "GREENSET"
                                ],
                                "doc": "The surface of the slam (e.g., clay, grass, hard, carpet)."
                            }
                        }
                    ]
                }
            },
            "doc": "List of slams won by the player."
        }
    ]
}