"""Type g.node.instance.gt, version 000"""

import json
import logging
from typing import Any
from typing import Dict
from typing import Literal
from typing import Optional

import dotenv
from gw.errors import DcError
from gw.errors import GwTypeError
from gw.utils import is_pascal_case
from gw.utils import pascal_to_snake
from gw.utils import snake_to_pascal
from pydantic import BaseModel
from pydantic import Field
from pydantic import field_validator

from gwbase.config import EnumSettings
from gwbase.data_classes.g_node import GNode
from gwbase.data_classes.g_node_instance import GNodeInstance
from gwbase.enums import GniStatus
from gwbase.enums import StrategyName


ENCODE_ENUMS = EnumSettings(_env_file=dotenv.find_dotenv()).encode

LOG_FORMAT = (
    "%(levelname) -10s %(asctime)s %(name) -30s %(funcName) "
    "-35s %(lineno) -5d: %(message)s"
)
LOGGER = logging.getLogger(__name__)


class GNodeInstanceGt(BaseModel):
    """
    Used to send and receive updates about GNodeInstances.

    One of the layers of abstraction connecting a GNode with a running app in a Docker container.

    [More info](https://gridworks.readthedocs.io/en/latest/g-node-instance.html)
    """

    g_node_instance_id: str = Field(
        title="Immutable identifier for GNodeInstance (Gni)",
    )
    g_node_id: str = Field(
        title="The GNode represented by the Gni",
    )
    strategy: StrategyName = Field(
        title="Used to determine the code running in a GNode actor application",
    )
    status: GniStatus = Field(
        title="Lifecycle Status for Gni",
    )
    supervisor_container_id: str = Field(
        title="The Id of the docker container where the Gni runs",
    )
    start_time_unix_s: int = Field(
        title="When the gni starts representing the GNode",
        description=(
            "Specifically, when the Status changes from Pending to Active. Note that this is "
            "time in the GNode's World, which may not be real time if it is a simulation."
        ),
    )
    end_time_unix_s: int = Field(
        title="When the gni stops representing the GNode",
        description="Specifically, when the Status changes from Active to Done.",
    )
    algo_address: Optional[str] = Field(
        title="Algorand address for Gni",
        default=None,
    )
    type_name: Literal["g.node.instance.gt"] = "g.node.instance.gt"
    version: Literal["000"] = "000"

    class Config:
        extra = "allow"
        populate_by_name = True
        alias_generator = snake_to_pascal

    @field_validator("g_node_instance_id")
    def _check_g_node_instance_id(cls, v: str) -> str:
        try:
            check_is_uuid_canonical_textual(v)
        except ValueError as e:
            raise ValueError(
                f"GNodeInstanceId failed UuidCanonicalTextual format validation: {e}"
            )
        return v

    @field_validator("g_node_id")
    def _check_g_node_id(cls, v: str) -> str:
        try:
            check_is_uuid_canonical_textual(v)
        except ValueError as e:
            raise ValueError(
                f"GNodeId failed UuidCanonicalTextual format validation: {e}"
            )
        return v

    @field_validator("supervisor_container_id")
    def _check_supervisor_container_id(cls, v: str) -> str:
        try:
            check_is_uuid_canonical_textual(v)
        except ValueError as e:
            raise ValueError(
                f"SupervisorContainerId failed UuidCanonicalTextual format validation: {e}"
            )
        return v

    @field_validator("start_time_unix_s")
    def _check_start_time_unix_s(cls, v: int) -> int:
        try:
            check_is_reasonable_unix_time_s(v)
        except ValueError as e:
            raise ValueError(
                f"StartTimeUnixS failed ReasonableUnixTimeS format validation: {e}"
            )
        return v

    @field_validator("algo_address")
    def _check_algo_address(cls, v: Optional[str]) -> Optional[str]:
        if v is None:
            return v
        try:
            check_is_algo_address_string_format(v)
        except ValueError as e:
            raise ValueError(
                f"AlgoAddress failed AlgoAddressStringFormat format validation: {e}"
            )
        return v

    def as_dict(self) -> Dict[str, Any]:
        """
        Main step in serializing the object. Encodes enums as their 8-digit random hex symbol if
        settings.encode_enums = 1.
        """
        if ENCODE_ENUMS:
            return self.enum_encoded_dict()
        else:
            return self.plain_enum_dict()

    def plain_enum_dict(self) -> Dict[str, Any]:
        """
        Returns enums as their values.
        """
        d = {
            snake_to_pascal(key): value
            for key, value in self.model_dump().items()
            if value is not None
        }
        d["Strategy"] = d["Strategy"].value
        d["Status"] = d["Status"].value
        return d

    def enum_encoded_dict(self) -> Dict[str, Any]:
        """
        Encodes enums as their 8-digit random hex symbol
        """
        d = {
            snake_to_pascal(key): value
            for key, value in self.model_dump().items()
            if value is not None
        }
        del d["Strategy"]
        d["StrategyGtEnumSymbol"] = StrategyName.value_to_symbol(self.strategy)
        del d["Status"]
        d["StatusGtEnumSymbol"] = GniStatus.value_to_symbol(self.status)
        return d

    def as_type(self) -> bytes:
        """
        Serialize to the g.node.instance.gt.000 representation designed to send in a message.

        Recursively encodes enums as hard-to-remember 8-digit random hex symbols
        unless settings.encode_enums is set to 0.
        """
        json_string = json.dumps(self.as_dict())
        return json_string.encode("utf-8")

    def __hash__(self):
        return hash((type(self),) + tuple(self.__dict__.values()))  # noqa


class GNodeInstanceGt_Maker:
    type_name = "g.node.instance.gt"
    version = "000"

    @classmethod
    def tuple_to_type(cls, tuple: GNodeInstanceGt) -> bytes:
        """
        Given a Python class object, returns the serialized JSON type object.
        """
        return tuple.as_type()

    @classmethod
    def type_to_tuple(cls, b: bytes) -> GNodeInstanceGt:
        """
        Given the bytes in a message, returns the corresponding class object.

        Args:
            b (bytes): candidate type instance

        Raises:
           GwTypeError: if the bytes are not a g.node.instance.gt.000 type

        Returns:
            GNodeInstanceGt instance
        """
        try:
            d = json.loads(b)
        except TypeError:
            raise GwTypeError("Type must be string or bytes!")
        if not isinstance(d, dict):
            raise GwTypeError(f"Deserializing  must result in dict!\n <{b}>")
        return cls.dict_to_tuple(d)

    @classmethod
    def dict_to_tuple(cls, d: dict[str, Any]) -> GNodeInstanceGt:
        """
        Translates a dict representation of a g.node.instance.gt.000 message object
        into the Python class object.
        """
        for key in d.keys():
            if not is_pascal_case(key):
                raise GwTypeError(f"Key '{key}' is not PascalCase")
        d2 = dict(d)
        if "GNodeInstanceId" not in d2.keys():
            raise GwTypeError(f"dict missing GNodeInstanceId: <{d2}>")
        if "GNodeId" not in d2.keys():
            raise GwTypeError(f"dict missing GNode: <{d2}>")
        if "StrategyGtEnumSymbol" in d2.keys():
            value = StrategyName.symbol_to_value(d2["StrategyGtEnumSymbol"])
            d2["Strategy"] = StrategyName(value)
            del d2["StrategyGtEnumSymbol"]
        elif "Strategy" in d2.keys():
            if d2["Strategy"] not in StrategyName.values():
                d2["Strategy"] = StrategyName.default()
            else:
                d2["Strategy"] = StrategyName(d2["Strategy"])
        else:
            raise GwTypeError(
                f"both StrategyGtEnumSymbol and Strategy missing from dict <{d2}>"
            )
        if "StatusGtEnumSymbol" in d2.keys():
            value = GniStatus.symbol_to_value(d2["StatusGtEnumSymbol"])
            d2["Status"] = GniStatus(value)
            del d2["StatusGtEnumSymbol"]
        elif "Status" in d2.keys():
            if d2["Status"] not in GniStatus.values():
                d2["Status"] = GniStatus.default()
            else:
                d2["Status"] = GniStatus(d2["Status"])
        else:
            raise GwTypeError(
                f"both StatusGtEnumSymbol and Status missing from dict <{d2}>"
            )
        if "SupervisorContainerId" not in d2.keys():
            raise GwTypeError(f"dict missing SupervisorContainerId: <{d2}>")
        if "StartTimeUnixS" not in d2.keys():
            raise GwTypeError(f"dict missing StartTimeUnixS: <{d2}>")
        if "EndTimeUnixS" not in d2.keys():
            raise GwTypeError(f"dict missing EndTimeUnixS: <{d2}>")
        if "TypeName" not in d2.keys():
            raise GwTypeError(f"TypeName missing from dict <{d2}>")
        if "Version" not in d2.keys():
            raise GwTypeError(f"Version missing from dict <{d2}>")
        if d2["Version"] != "000":
            LOGGER.debug(
                f"Attempting to interpret g.node.instance.gt version {d2['Version']} as version 000"
            )
            d2["Version"] = "000"
        d3 = {pascal_to_snake(key): value for key, value in d2.items()}
        return GNodeInstanceGt(**d3)

    @classmethod
    def tuple_to_dc(cls, t: GNodeInstanceGt) -> GNodeInstance:
        if t.g_node_instance_id in GNodeInstance.by_id.keys():
            dc = GNodeInstance.by_id[t.g_node_instance_id]
        else:
            try:
                g_node = GNode.by_id[t.g_node_id]
            except:
                raise DcError(f"Missing GNode with id {t.g_node_id}")
            dc = GNodeInstance(
                g_node_instance_id=t.g_node_instance_id,
                g_node=g_node,
                strategy=t.strategy,
                status=t.status,
                supervisor_container_id=t.supervisor_container_id,
                start_time_unix_s=t.start_time_unix_s,
                end_time_unix_s=t.end_time_unix_s,
                algo_address=t.algo_address,
            )
        return dc

    @classmethod
    def dc_to_tuple(cls, dc: GNodeInstance) -> GNodeInstanceGt:
        return GNodeInstanceGt(
            g_node_instance_id=dc.g_node_instance_id,
            g_node_id=dc.g_node_id,
            strategy=dc.strategy,
            status=dc.status,
            supervisor_container_id=dc.supervisor_container_id,
            start_time_unix_s=dc.start_time_unix_s,
            end_time_unix_s=dc.end_time_unix_s,
            algo_address=dc.algo_address,
        )

    @classmethod
    def type_to_dc(cls, t: str) -> GNodeInstance:
        return cls.tuple_to_dc(cls.type_to_tuple(t))

    @classmethod
    def dc_to_type(cls, dc: GNodeInstance) -> str:
        return cls.dc_to_tuple(dc).as_type()

    @classmethod
    def dict_to_dc(cls, d: dict[Any, str]) -> GNodeInstance:
        return cls.tuple_to_dc(cls.dict_to_tuple(d))


def check_is_algo_address_string_format(v: str) -> None:
    """
    AlgoAddressStringFormat format: The public key of a private/public Ed25519
    key pair, transformed into an  Algorand address, by adding a 4-byte checksum
    to the end of the public key and then encoding in base32.

    Raises:
        ValueError: if not AlgoAddressStringFormat format
    """
    import algosdk

    at = algosdk.abi.AddressType()
    try:
        result = at.decode(at.encode(v))
    except Exception as e:
        raise ValueError(f"Not AlgoAddressStringFormat: {e}")


def check_is_reasonable_unix_time_s(v: int) -> None:
    """Checks ReasonableUnixTimeS format

    ReasonableUnixTimeS format: unix seconds between Jan 1 2000 and Jan 1 3000

    Args:
        v (int): the candidate

    Raises:
        ValueError: if v is not ReasonableUnixTimeS format
    """
    from datetime import datetime
    from datetime import timezone

    start_date = datetime(2000, 1, 1, tzinfo=timezone.utc)
    end_date = datetime(3000, 1, 1, tzinfo=timezone.utc)

    start_timestamp = int(start_date.timestamp())
    end_timestamp = int(end_date.timestamp())

    if v < start_timestamp:
        raise ValueError(f"{v} must be after Jan 1 2000")
    if v > end_timestamp:
        raise ValueError(f"{v} must be before Jan 1 3000")


def check_is_uuid_canonical_textual(v: str) -> None:
    """Checks UuidCanonicalTextual format

    UuidCanonicalTextual format:  A string of hex words separated by hyphens
    of length 8-4-4-4-12.

    Args:
        v (str): the candidate

    Raises:
        ValueError: if v is not UuidCanonicalTextual format
    """
    try:
        x = v.split("-")
    except AttributeError as e:
        raise ValueError(f"Failed to split on -: {e}")
    if len(x) != 5:
        raise ValueError(f"<{v}> split by '-' did not have 5 words")
    for hex_word in x:
        try:
            int(hex_word, 16)
        except ValueError:
            raise ValueError(f"Words of <{v}> are not all hex")
    if len(x[0]) != 8:
        raise ValueError(f"<{v}> word lengths not 8-4-4-4-12")
    if len(x[1]) != 4:
        raise ValueError(f"<{v}> word lengths not 8-4-4-4-12")
    if len(x[2]) != 4:
        raise ValueError(f"<{v}> word lengths not 8-4-4-4-12")
    if len(x[3]) != 4:
        raise ValueError(f"<{v}> word lengths not 8-4-4-4-12")
    if len(x[4]) != 12:
        raise ValueError(f"<{v}> word lengths not 8-4-4-4-12")
