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# Copyright (c) 2023-2024 Arista Networks, Inc.
# Use of this source code is governed by the Apache License 2.0
# that can be found in the LICENSE file.
"""Models related to inventory management."""

from __future__ import annotations

import logging
from typing import List, Optional, Union

# Need to keep List for pydantic in python 3.8
from pydantic import BaseModel, ConfigDict, IPvAnyAddress, IPvAnyNetwork, conint, constr

logger = logging.getLogger(__name__)

# Pydantic models for input validation

RFC_1123_REGEX = r"^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$"


class AntaInventoryHost(BaseModel):
    """
    Host definition for user's inventory.

    Attributes:
        host (IPvAnyAddress): IPv4 or IPv6 address of the device
        port (int): (Optional) eAPI port to use Default is 443.
        name (str): (Optional) Name to display during tests report. Default is hostname:port
        tags (list[str]): List of attached tags read from inventory file.
        disable_cache (bool): Disable cache per host. Defaults to False.
    """

    model_config = ConfigDict(extra="forbid")

    name: Optional[str] = None
    host: Union[constr(pattern=RFC_1123_REGEX), IPvAnyAddress]  # type: ignore
    port: Optional[conint(gt=1, lt=65535)] = None  # type: ignore
    tags: Optional[List[str]] = None
    disable_cache: bool = False


class AntaInventoryNetwork(BaseModel):
    """
    Network definition for user's inventory.

    Attributes:
        network (IPvAnyNetwork): Subnet to use for testing.
        tags (list[str]): List of attached tags read from inventory file.
        disable_cache (bool): Disable cache per network. Defaults to False.
    """

    model_config = ConfigDict(extra="forbid")

    network: IPvAnyNetwork
    tags: Optional[List[str]] = None
    disable_cache: bool = False


class AntaInventoryRange(BaseModel):
    """
    IP Range definition for user's inventory.

    Attributes:
        start (IPvAnyAddress): IPv4 or IPv6 address for the begining of the range.
        stop (IPvAnyAddress): IPv4 or IPv6 address for the end of the range.
        tags (list[str]): List of attached tags read from inventory file.
        disable_cache (bool): Disable cache per range of hosts. Defaults to False.
    """

    model_config = ConfigDict(extra="forbid")

    start: IPvAnyAddress
    end: IPvAnyAddress
    tags: Optional[List[str]] = None
    disable_cache: bool = False


class AntaInventoryInput(BaseModel):
    """
    User's inventory model.

    Attributes:
        networks (list[AntaInventoryNetwork],Optional): List of AntaInventoryNetwork objects for networks.
        hosts (list[AntaInventoryHost],Optional): List of AntaInventoryHost objects for hosts.
        range (list[AntaInventoryRange],Optional): List of AntaInventoryRange objects for ranges.
    """

    model_config = ConfigDict(extra="forbid")

    networks: Optional[List[AntaInventoryNetwork]] = None
    hosts: Optional[List[AntaInventoryHost]] = None
    ranges: Optional[List[AntaInventoryRange]] = None