from .api import Request, Response
from .types import Array, Int8, Int16, Int32, Int64, Schema, String

UNKNOWN_OFFSET = -1


class OffsetResetStrategy(object):
    LATEST = -1
    EARLIEST = -2
    NONE = 0


class OffsetResponse_v0(Response):
    API_KEY = 2
    API_VERSION = 0
    SCHEMA = Schema(
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                (
                    "partitions",
                    Array(
                        ("partition", Int32),
                        ("error_code", Int16),
                        ("offsets", Array(Int64)),
                    ),
                ),
            ),
        )
    )


class OffsetResponse_v1(Response):
    API_KEY = 2
    API_VERSION = 1
    SCHEMA = Schema(
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                (
                    "partitions",
                    Array(
                        ("partition", Int32),
                        ("error_code", Int16),
                        ("timestamp", Int64),
                        ("offset", Int64),
                    ),
                ),
            ),
        )
    )


class OffsetResponse_v2(Response):
    API_KEY = 2
    API_VERSION = 2
    SCHEMA = Schema(
        ("throttle_time_ms", Int32),
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                (
                    "partitions",
                    Array(
                        ("partition", Int32),
                        ("error_code", Int16),
                        ("timestamp", Int64),
                        ("offset", Int64),
                    ),
                ),
            ),
        ),
    )


class OffsetResponse_v3(Response):
    """
    on quota violation, brokers send out responses before throttling
    """

    API_KEY = 2
    API_VERSION = 3
    SCHEMA = OffsetResponse_v2.SCHEMA


class OffsetResponse_v4(Response):
    """
    Add leader_epoch to response
    """

    API_KEY = 2
    API_VERSION = 4
    SCHEMA = Schema(
        ("throttle_time_ms", Int32),
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                (
                    "partitions",
                    Array(
                        ("partition", Int32),
                        ("error_code", Int16),
                        ("timestamp", Int64),
                        ("offset", Int64),
                        ("leader_epoch", Int32),
                    ),
                ),
            ),
        ),
    )


class OffsetResponse_v5(Response):
    """
    adds a new error code, OFFSET_NOT_AVAILABLE
    """

    API_KEY = 2
    API_VERSION = 5
    SCHEMA = OffsetResponse_v4.SCHEMA


class OffsetRequest_v0(Request):
    API_KEY = 2
    API_VERSION = 0
    RESPONSE_TYPE = OffsetResponse_v0
    SCHEMA = Schema(
        ("replica_id", Int32),
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                (
                    "partitions",
                    Array(
                        ("partition", Int32),
                        ("timestamp", Int64),
                        ("max_offsets", Int32),
                    ),
                ),
            ),
        ),
    )
    DEFAULTS = {"replica_id": -1}


class OffsetRequest_v1(Request):
    API_KEY = 2
    API_VERSION = 1
    RESPONSE_TYPE = OffsetResponse_v1
    SCHEMA = Schema(
        ("replica_id", Int32),
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                ("partitions", Array(("partition", Int32), ("timestamp", Int64))),
            ),
        ),
    )
    DEFAULTS = {"replica_id": -1}


class OffsetRequest_v2(Request):
    API_KEY = 2
    API_VERSION = 2
    RESPONSE_TYPE = OffsetResponse_v2
    SCHEMA = Schema(
        ("replica_id", Int32),
        ("isolation_level", Int8),  # <- added isolation_level
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                ("partitions", Array(("partition", Int32), ("timestamp", Int64))),
            ),
        ),
    )
    DEFAULTS = {"replica_id": -1}


class OffsetRequest_v3(Request):
    API_KEY = 2
    API_VERSION = 3
    RESPONSE_TYPE = OffsetResponse_v3
    SCHEMA = OffsetRequest_v2.SCHEMA
    DEFAULTS = {"replica_id": -1}


class OffsetRequest_v4(Request):
    """
    Add current_leader_epoch to request
    """

    API_KEY = 2
    API_VERSION = 4
    RESPONSE_TYPE = OffsetResponse_v4
    SCHEMA = Schema(
        ("replica_id", Int32),
        ("isolation_level", Int8),  # <- added isolation_level
        (
            "topics",
            Array(
                ("topic", String("utf-8")),
                (
                    "partitions",
                    Array(
                        ("partition", Int32),
                        ("current_leader_epoch", Int64),
                        ("timestamp", Int64),
                    ),
                ),
            ),
        ),
    )
    DEFAULTS = {"replica_id": -1}


class OffsetRequest_v5(Request):
    API_KEY = 2
    API_VERSION = 5
    RESPONSE_TYPE = OffsetResponse_v5
    SCHEMA = OffsetRequest_v4.SCHEMA
    DEFAULTS = {"replica_id": -1}


OffsetRequest = [
    OffsetRequest_v0,
    OffsetRequest_v1,
    OffsetRequest_v2,
    OffsetRequest_v3,
    OffsetRequest_v4,
    OffsetRequest_v5,
]
OffsetResponse = [
    OffsetResponse_v0,
    OffsetResponse_v1,
    OffsetResponse_v2,
    OffsetResponse_v3,
    OffsetResponse_v4,
    OffsetResponse_v5,
]