from collections import OrderedDict
import copy
import datetime
from typing import Any, Dict, Iterable, List, Optional

from dateutil.tz import tzutc

from moto.core import BaseBackend, BackendDict, BaseModel, CloudFormationModel
from moto.core.utils import iso_8601_datetime_with_milliseconds
from moto.ec2 import ec2_backends
from moto.moto_api._internal import mock_random
from .exceptions import (
    ClusterAlreadyExistsFaultError,
    ClusterNotFoundError,
    ClusterParameterGroupNotFoundError,
    ClusterSecurityGroupNotFoundError,
    ClusterSnapshotAlreadyExistsError,
    ClusterSnapshotNotFoundError,
    ClusterSubnetGroupNotFoundError,
    InvalidParameterCombinationError,
    InvalidParameterValueError,
    InvalidSubnetError,
    ResourceNotFoundFaultError,
    SnapshotCopyAlreadyDisabledFaultError,
    SnapshotCopyAlreadyEnabledFaultError,
    SnapshotCopyDisabledFaultError,
    SnapshotCopyGrantAlreadyExistsFaultError,
    SnapshotCopyGrantNotFoundFaultError,
    UnknownSnapshotCopyRegionFaultError,
    ClusterSecurityGroupNotFoundFaultError,
    InvalidClusterSnapshotStateFaultError,
)


class TaggableResourceMixin:
    resource_type = ""

    def __init__(
        self, account_id: str, region_name: str, tags: Optional[List[Dict[str, Any]]]
    ):
        self.account_id = account_id
        self.region = region_name
        self.tags = tags or []

    @property
    def resource_id(self) -> str:
        return ""

    @property
    def arn(self) -> str:
        return (
            f"arn:aws:redshift:{self.region}:{self.account_id}"
            f":{self.resource_type}:{self.resource_id}"
        )

    def create_tags(self, tags: List[Dict[str, str]]) -> List[Dict[str, str]]:
        new_keys = [tag_set["Key"] for tag_set in tags]
        self.tags = [tag_set for tag_set in self.tags if tag_set["Key"] not in new_keys]
        self.tags.extend(tags)
        return self.tags

    def delete_tags(self, tag_keys: List[str]) -> List[Dict[str, str]]:
        self.tags = [tag_set for tag_set in self.tags if tag_set["Key"] not in tag_keys]
        return self.tags


class Cluster(TaggableResourceMixin, CloudFormationModel):
    resource_type = "cluster"

    def __init__(
        self,
        redshift_backend: "RedshiftBackend",
        cluster_identifier: str,
        node_type: str,
        master_username: str,
        master_user_password: str,
        db_name: str,
        cluster_type: str,
        cluster_security_groups: List[str],
        vpc_security_group_ids: List[str],
        cluster_subnet_group_name: str,
        availability_zone: str,
        preferred_maintenance_window: str,
        cluster_parameter_group_name: str,
        automated_snapshot_retention_period: str,
        port: str,
        cluster_version: str,
        allow_version_upgrade: str,
        number_of_nodes: str,
        publicly_accessible: str,
        encrypted: str,
        region_name: str,
        tags: Optional[List[Dict[str, str]]] = None,
        iam_roles_arn: Optional[List[str]] = None,
        enhanced_vpc_routing: Optional[str] = None,
        restored_from_snapshot: bool = False,
        kms_key_id: Optional[str] = None,
    ):
        super().__init__(redshift_backend.account_id, region_name, tags)
        self.redshift_backend = redshift_backend
        self.cluster_identifier = cluster_identifier
        self.create_time = iso_8601_datetime_with_milliseconds()
        self.status = "available"
        self.node_type = node_type
        self.master_username = master_username
        self.master_user_password = master_user_password
        self.db_name = db_name if db_name else "dev"
        self.vpc_security_group_ids = vpc_security_group_ids
        self.enhanced_vpc_routing = (
            enhanced_vpc_routing if enhanced_vpc_routing is not None else False
        )
        self.cluster_subnet_group_name = cluster_subnet_group_name
        self.publicly_accessible = publicly_accessible
        self.encrypted = encrypted

        self.allow_version_upgrade = (
            allow_version_upgrade if allow_version_upgrade is not None else True
        )
        self.cluster_version = cluster_version if cluster_version else "1.0"
        self.port = int(port) if port else 5439
        self.automated_snapshot_retention_period = (
            int(automated_snapshot_retention_period)
            if automated_snapshot_retention_period
            else 1
        )
        self.preferred_maintenance_window = (
            preferred_maintenance_window
            if preferred_maintenance_window
            else "Mon:03:00-Mon:03:30"
        )

        if cluster_parameter_group_name:
            self.cluster_parameter_group_name = [cluster_parameter_group_name]
        else:
            self.cluster_parameter_group_name = ["default.redshift-1.0"]

        if cluster_security_groups:
            self.cluster_security_groups = cluster_security_groups
        else:
            self.cluster_security_groups = ["Default"]

        if availability_zone:
            self.availability_zone = availability_zone
        else:
            # This could probably be smarter, but there doesn't appear to be a
            # way to pull AZs for a region in boto
            self.availability_zone = region_name + "a"

        if cluster_type == "single-node":
            self.number_of_nodes = 1
        elif number_of_nodes:
            self.number_of_nodes = int(number_of_nodes)
        else:
            self.number_of_nodes = 1

        self.iam_roles_arn = iam_roles_arn or []
        self.restored_from_snapshot = restored_from_snapshot
        self.kms_key_id = kms_key_id
        self.cluster_snapshot_copy_status: Optional[Dict[str, Any]] = None

    @staticmethod
    def cloudformation_name_type() -> str:
        return ""

    @staticmethod
    def cloudformation_type() -> str:
        # https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-redshift-cluster.html
        return "AWS::Redshift::Cluster"

    @classmethod
    def create_from_cloudformation_json(  # type: ignore[misc]
        cls,
        resource_name: str,
        cloudformation_json: Any,
        account_id: str,
        region_name: str,
        **kwargs: Any,
    ) -> "Cluster":
        redshift_backend = redshift_backends[account_id][region_name]
        properties = cloudformation_json["Properties"]

        if "ClusterSubnetGroupName" in properties:
            subnet_group_name = properties[
                "ClusterSubnetGroupName"
            ].cluster_subnet_group_name
        else:
            subnet_group_name = None

        cluster = redshift_backend.create_cluster(
            cluster_identifier=resource_name,
            node_type=properties.get("NodeType"),
            master_username=properties.get("MasterUsername"),
            master_user_password=properties.get("MasterUserPassword"),
            db_name=properties.get("DBName"),
            cluster_type=properties.get("ClusterType"),
            cluster_security_groups=properties.get("ClusterSecurityGroups", []),
            vpc_security_group_ids=properties.get("VpcSecurityGroupIds", []),
            cluster_subnet_group_name=subnet_group_name,
            availability_zone=properties.get("AvailabilityZone"),
            preferred_maintenance_window=properties.get("PreferredMaintenanceWindow"),
            cluster_parameter_group_name=properties.get("ClusterParameterGroupName"),
            automated_snapshot_retention_period=properties.get(
                "AutomatedSnapshotRetentionPeriod"
            ),
            port=properties.get("Port"),
            cluster_version=properties.get("ClusterVersion"),
            allow_version_upgrade=properties.get("AllowVersionUpgrade"),
            enhanced_vpc_routing=properties.get("EnhancedVpcRouting"),
            number_of_nodes=properties.get("NumberOfNodes"),
            publicly_accessible=properties.get("PubliclyAccessible"),
            encrypted=properties.get("Encrypted"),
            region_name=region_name,
            kms_key_id=properties.get("KmsKeyId"),
        )
        return cluster

    @classmethod
    def has_cfn_attr(cls, attr: str) -> bool:
        return attr in ["Endpoint.Address", "Endpoint.Port"]

    def get_cfn_attribute(self, attribute_name: str) -> Any:
        from moto.cloudformation.exceptions import UnformattedGetAttTemplateException

        if attribute_name == "Endpoint.Address":
            return self.endpoint
        if attribute_name == "Endpoint.Port":
            return self.port
        raise UnformattedGetAttTemplateException()

    @property
    def endpoint(self) -> str:
        return f"{self.cluster_identifier}.cg034hpkmmjt.{self.region}.redshift.amazonaws.com"

    @property
    def security_groups(self) -> List["SecurityGroup"]:
        return [
            security_group
            for security_group in self.redshift_backend.describe_cluster_security_groups()
            if security_group.cluster_security_group_name
            in self.cluster_security_groups
        ]

    @property
    def vpc_security_groups(self) -> List["SecurityGroup"]:
        return [
            security_group
            for security_group in self.redshift_backend.ec2_backend.describe_security_groups()
            if security_group.id in self.vpc_security_group_ids
        ]

    @property
    def parameter_groups(self) -> List["ParameterGroup"]:
        return [
            parameter_group
            for parameter_group in self.redshift_backend.describe_cluster_parameter_groups()
            if parameter_group.cluster_parameter_group_name
            in self.cluster_parameter_group_name
        ]

    @property
    def resource_id(self) -> str:
        return self.cluster_identifier

    def pause(self) -> None:
        self.status = "paused"

    def resume(self) -> None:
        self.status = "available"

    def to_json(self) -> Dict[str, Any]:
        json_response = {
            "MasterUsername": self.master_username,
            "MasterUserPassword": "****",
            "ClusterVersion": self.cluster_version,
            "VpcSecurityGroups": [
                {"Status": "active", "VpcSecurityGroupId": group.id}  # type: ignore
                for group in self.vpc_security_groups
            ],
            "ClusterSubnetGroupName": self.cluster_subnet_group_name,
            "AvailabilityZone": self.availability_zone,
            "ClusterStatus": self.status,
            "NumberOfNodes": self.number_of_nodes,
            "AutomatedSnapshotRetentionPeriod": self.automated_snapshot_retention_period,
            "PubliclyAccessible": self.publicly_accessible,
            "Encrypted": self.encrypted,
            "DBName": self.db_name,
            "PreferredMaintenanceWindow": self.preferred_maintenance_window,
            "ClusterParameterGroups": [
                {
                    "ParameterApplyStatus": "in-sync",
                    "ParameterGroupName": group.cluster_parameter_group_name,
                }
                for group in self.parameter_groups
            ],
            "ClusterSecurityGroups": [
                {
                    "Status": "active",
                    "ClusterSecurityGroupName": group.cluster_security_group_name,
                }
                for group in self.security_groups
            ],
            "Port": self.port,
            "NodeType": self.node_type,
            "ClusterIdentifier": self.cluster_identifier,
            "AllowVersionUpgrade": self.allow_version_upgrade,
            "Endpoint": {"Address": self.endpoint, "Port": self.port},
            "ClusterCreateTime": self.create_time,
            "PendingModifiedValues": [],
            "Tags": self.tags,
            "EnhancedVpcRouting": self.enhanced_vpc_routing,
            "IamRoles": [
                {"ApplyStatus": "in-sync", "IamRoleArn": iam_role_arn}
                for iam_role_arn in self.iam_roles_arn
            ],
            "KmsKeyId": self.kms_key_id,
        }
        if self.restored_from_snapshot:
            json_response["RestoreStatus"] = {
                "Status": "completed",
                "CurrentRestoreRateInMegaBytesPerSecond": 123.0,
                "SnapshotSizeInMegaBytes": 123,
                "ProgressInMegaBytes": 123,
                "ElapsedTimeInSeconds": 123,
                "EstimatedTimeToCompletionInSeconds": 123,
            }
        if self.cluster_snapshot_copy_status is not None:
            json_response[
                "ClusterSnapshotCopyStatus"
            ] = self.cluster_snapshot_copy_status
        return json_response


class SnapshotCopyGrant(TaggableResourceMixin, BaseModel):
    resource_type = "snapshotcopygrant"

    def __init__(self, snapshot_copy_grant_name: str, kms_key_id: str):
        self.snapshot_copy_grant_name = snapshot_copy_grant_name
        self.kms_key_id = kms_key_id

    def to_json(self) -> Dict[str, Any]:
        return {
            "SnapshotCopyGrantName": self.snapshot_copy_grant_name,
            "KmsKeyId": self.kms_key_id,
        }


class SubnetGroup(TaggableResourceMixin, CloudFormationModel):
    resource_type = "subnetgroup"

    def __init__(
        self,
        ec2_backend: Any,
        cluster_subnet_group_name: str,
        description: str,
        subnet_ids: List[str],
        region_name: str,
        tags: Optional[List[Dict[str, str]]] = None,
    ):
        super().__init__(ec2_backend.account_id, region_name, tags)
        self.ec2_backend = ec2_backend
        self.cluster_subnet_group_name = cluster_subnet_group_name
        self.description = description
        self.subnet_ids = subnet_ids
        if not self.subnets:
            raise InvalidSubnetError(subnet_ids)

    @staticmethod
    def cloudformation_name_type() -> str:
        return ""

    @staticmethod
    def cloudformation_type() -> str:
        # https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-redshift-clustersubnetgroup.html
        return "AWS::Redshift::ClusterSubnetGroup"

    @classmethod
    def create_from_cloudformation_json(  # type: ignore[misc]
        cls,
        resource_name: str,
        cloudformation_json: Any,
        account_id: str,
        region_name: str,
        **kwargs: Any,
    ) -> "SubnetGroup":
        redshift_backend = redshift_backends[account_id][region_name]
        properties = cloudformation_json["Properties"]

        subnet_group = redshift_backend.create_cluster_subnet_group(
            cluster_subnet_group_name=resource_name,
            description=properties.get("Description"),
            subnet_ids=properties.get("SubnetIds", []),
            region_name=region_name,
        )
        return subnet_group

    @property
    def subnets(self) -> Any:  # type: ignore[misc]
        return self.ec2_backend.describe_subnets(filters={"subnet-id": self.subnet_ids})

    @property
    def vpc_id(self) -> str:
        return self.subnets[0].vpc_id

    @property
    def resource_id(self) -> str:
        return self.cluster_subnet_group_name

    def to_json(self) -> Dict[str, Any]:
        return {
            "VpcId": self.vpc_id,
            "Description": self.description,
            "ClusterSubnetGroupName": self.cluster_subnet_group_name,
            "SubnetGroupStatus": "Complete",
            "Subnets": [
                {
                    "SubnetStatus": "Active",
                    "SubnetIdentifier": subnet.id,
                    "SubnetAvailabilityZone": {"Name": subnet.availability_zone},
                }
                for subnet in self.subnets
            ],
            "Tags": self.tags,
        }


class SecurityGroup(TaggableResourceMixin, BaseModel):
    resource_type = "securitygroup"

    def __init__(
        self,
        cluster_security_group_name: str,
        description: str,
        account_id: str,
        region_name: str,
        tags: Optional[List[Dict[str, str]]] = None,
    ):
        super().__init__(account_id, region_name, tags)
        self.cluster_security_group_name = cluster_security_group_name
        self.description = description
        self.ingress_rules: List[str] = []

    @property
    def resource_id(self) -> str:
        return self.cluster_security_group_name

    def to_json(self) -> Dict[str, Any]:
        return {
            "EC2SecurityGroups": [],
            "IPRanges": [],
            "Description": self.description,
            "ClusterSecurityGroupName": self.cluster_security_group_name,
            "Tags": self.tags,
        }


class ParameterGroup(TaggableResourceMixin, CloudFormationModel):
    resource_type = "parametergroup"

    def __init__(
        self,
        cluster_parameter_group_name: str,
        group_family: str,
        description: str,
        account_id: str,
        region_name: str,
        tags: Optional[List[Dict[str, str]]] = None,
    ):
        super().__init__(account_id, region_name, tags)
        self.cluster_parameter_group_name = cluster_parameter_group_name
        self.group_family = group_family
        self.description = description

    @staticmethod
    def cloudformation_name_type() -> str:
        return ""

    @staticmethod
    def cloudformation_type() -> str:
        # https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-redshift-clusterparametergroup.html
        return "AWS::Redshift::ClusterParameterGroup"

    @classmethod
    def create_from_cloudformation_json(  # type: ignore[misc]
        cls,
        resource_name: str,
        cloudformation_json: Any,
        account_id: str,
        region_name: str,
        **kwargs: Any,
    ) -> "ParameterGroup":
        redshift_backend = redshift_backends[account_id][region_name]
        properties = cloudformation_json["Properties"]

        parameter_group = redshift_backend.create_cluster_parameter_group(
            cluster_parameter_group_name=resource_name,
            description=properties.get("Description"),
            group_family=properties.get("ParameterGroupFamily"),
            region_name=region_name,
        )
        return parameter_group

    @property
    def resource_id(self) -> str:
        return self.cluster_parameter_group_name

    def to_json(self) -> Dict[str, Any]:
        return {
            "ParameterGroupFamily": self.group_family,
            "Description": self.description,
            "ParameterGroupName": self.cluster_parameter_group_name,
            "Tags": self.tags,
        }


class Snapshot(TaggableResourceMixin, BaseModel):
    resource_type = "snapshot"

    def __init__(
        self,
        cluster: Any,
        snapshot_identifier: str,
        account_id: str,
        region_name: str,
        tags: Optional[List[Dict[str, str]]] = None,
        iam_roles_arn: Optional[List[str]] = None,
        snapshot_type: str = "manual",
    ):
        super().__init__(account_id, region_name, tags)
        self.cluster = copy.copy(cluster)
        self.snapshot_identifier = snapshot_identifier
        self.snapshot_type = snapshot_type
        self.status = "available"
        self.create_time = iso_8601_datetime_with_milliseconds()
        self.iam_roles_arn = iam_roles_arn or []

    @property
    def resource_id(self) -> str:
        return f"{self.cluster.cluster_identifier}/{self.snapshot_identifier}"

    def to_json(self) -> Dict[str, Any]:
        return {
            "SnapshotIdentifier": self.snapshot_identifier,
            "ClusterIdentifier": self.cluster.cluster_identifier,
            "SnapshotCreateTime": self.create_time,
            "Status": self.status,
            "Port": self.cluster.port,
            "AvailabilityZone": self.cluster.availability_zone,
            "MasterUsername": self.cluster.master_username,
            "ClusterVersion": self.cluster.cluster_version,
            "SnapshotType": self.snapshot_type,
            "NodeType": self.cluster.node_type,
            "NumberOfNodes": self.cluster.number_of_nodes,
            "DBName": self.cluster.db_name,
            "Tags": self.tags,
            "EnhancedVpcRouting": self.cluster.enhanced_vpc_routing,
            "IamRoles": [
                {"ApplyStatus": "in-sync", "IamRoleArn": iam_role_arn}
                for iam_role_arn in self.iam_roles_arn
            ],
        }


class RedshiftBackend(BaseBackend):
    def __init__(self, region_name: str, account_id: str):
        super().__init__(region_name, account_id)
        self.clusters: Dict[str, Cluster] = {}
        self.subnet_groups: Dict[str, SubnetGroup] = {}
        self.security_groups: Dict[str, SecurityGroup] = {
            "Default": SecurityGroup(
                "Default", "Default Redshift Security Group", account_id, region_name
            )
        }
        self.parameter_groups: Dict[str, ParameterGroup] = {
            "default.redshift-1.0": ParameterGroup(
                "default.redshift-1.0",
                "redshift-1.0",
                "Default Redshift parameter group",
                self.account_id,
                self.region_name,
            )
        }
        self.ec2_backend = ec2_backends[self.account_id][self.region_name]
        self.snapshots: Dict[str, Snapshot] = OrderedDict()
        self.RESOURCE_TYPE_MAP: Dict[str, Dict[str, TaggableResourceMixin]] = {
            "cluster": self.clusters,  # type: ignore
            "parametergroup": self.parameter_groups,  # type: ignore
            "securitygroup": self.security_groups,  # type: ignore
            "snapshot": self.snapshots,  # type: ignore
            "subnetgroup": self.subnet_groups,  # type: ignore
        }
        self.snapshot_copy_grants: Dict[str, SnapshotCopyGrant] = {}

    @staticmethod
    def default_vpc_endpoint_service(
        service_region: str, zones: List[str]
    ) -> List[Dict[str, str]]:
        """Default VPC endpoint service."""
        return BaseBackend.default_vpc_endpoint_service_factory(
            service_region, zones, "redshift"
        ) + BaseBackend.default_vpc_endpoint_service_factory(
            service_region, zones, "redshift-data", policy_supported=False
        )

    def enable_snapshot_copy(self, **kwargs: Any) -> Cluster:
        cluster_identifier = kwargs["cluster_identifier"]
        cluster = self.clusters[cluster_identifier]
        if cluster.cluster_snapshot_copy_status is None:
            if (
                cluster.encrypted == "true"
                and kwargs["snapshot_copy_grant_name"] is None
            ):
                raise InvalidParameterValueError(
                    "SnapshotCopyGrantName is required for Snapshot Copy on KMS encrypted clusters."
                )
            if kwargs["destination_region"] == self.region_name:
                raise UnknownSnapshotCopyRegionFaultError(
                    f"Invalid region {self.region_name}"
                )
            status = {
                "DestinationRegion": kwargs["destination_region"],
                "RetentionPeriod": kwargs["retention_period"],
                "SnapshotCopyGrantName": kwargs["snapshot_copy_grant_name"],
            }
            cluster.cluster_snapshot_copy_status = status
            return cluster
        raise SnapshotCopyAlreadyEnabledFaultError(cluster_identifier)

    def disable_snapshot_copy(self, **kwargs: Any) -> Cluster:
        cluster_identifier = kwargs["cluster_identifier"]
        cluster = self.clusters[cluster_identifier]
        if cluster.cluster_snapshot_copy_status is not None:
            cluster.cluster_snapshot_copy_status = None
            return cluster
        raise SnapshotCopyAlreadyDisabledFaultError(cluster_identifier)

    def modify_snapshot_copy_retention_period(
        self, cluster_identifier: str, retention_period: str
    ) -> Cluster:
        cluster = self.clusters[cluster_identifier]
        if cluster.cluster_snapshot_copy_status is not None:
            cluster.cluster_snapshot_copy_status["RetentionPeriod"] = retention_period
            return cluster
        else:
            raise SnapshotCopyDisabledFaultError(cluster_identifier)

    def create_cluster(self, **cluster_kwargs: Any) -> Cluster:
        cluster_identifier = cluster_kwargs["cluster_identifier"]
        if cluster_identifier in self.clusters:
            raise ClusterAlreadyExistsFaultError()
        cluster = Cluster(self, **cluster_kwargs)
        self.clusters[cluster_identifier] = cluster
        snapshot_id = (
            f"rs:{cluster_identifier}-"
            f"{datetime.datetime.now(tzutc()).strftime('%Y-%m-%d-%H-%M')}"
        )
        # Automated snapshots don't copy over the tags
        self.create_cluster_snapshot(
            cluster_identifier,
            snapshot_id,
            cluster.region,
            None,
            snapshot_type="automated",
        )
        return cluster

    def pause_cluster(self, cluster_id: str) -> Cluster:
        if cluster_id not in self.clusters:
            raise ClusterNotFoundError(cluster_identifier=cluster_id)
        self.clusters[cluster_id].pause()
        return self.clusters[cluster_id]

    def resume_cluster(self, cluster_id: str) -> Cluster:
        if cluster_id not in self.clusters:
            raise ClusterNotFoundError(cluster_identifier=cluster_id)
        self.clusters[cluster_id].resume()
        return self.clusters[cluster_id]

    def describe_clusters(
        self, cluster_identifier: Optional[str] = None
    ) -> List[Cluster]:
        if cluster_identifier:
            if cluster_identifier in self.clusters:
                return [self.clusters[cluster_identifier]]
            raise ClusterNotFoundError(cluster_identifier)
        return list(self.clusters.values())

    def modify_cluster(self, **cluster_kwargs: Any) -> Cluster:
        cluster_identifier = cluster_kwargs.pop("cluster_identifier")
        new_cluster_identifier = cluster_kwargs.pop("new_cluster_identifier", None)

        cluster_type = cluster_kwargs.get("cluster_type")
        if cluster_type and cluster_type not in ["multi-node", "single-node"]:
            raise InvalidParameterValueError(
                "Invalid cluster type. Cluster type can be one of multi-node or single-node"
            )
        if cluster_type == "single-node":
            # AWS will always silently override this value for single-node clusters.
            cluster_kwargs["number_of_nodes"] = 1
        elif cluster_type == "multi-node":
            if cluster_kwargs.get("number_of_nodes", 0) < 2:
                raise InvalidParameterCombinationError(
                    "Number of nodes for cluster type multi-node must be greater than or equal to 2"
                )

        cluster = self.describe_clusters(cluster_identifier)[0]

        for key, value in cluster_kwargs.items():
            setattr(cluster, key, value)

        if new_cluster_identifier:
            dic = {
                "cluster_identifier": cluster_identifier,
                "skip_final_snapshot": True,
                "final_cluster_snapshot_identifier": None,
            }
            self.delete_cluster(**dic)
            cluster.cluster_identifier = new_cluster_identifier
            self.clusters[new_cluster_identifier] = cluster

        return cluster

    def delete_automated_snapshots(self, cluster_identifier: str) -> None:
        snapshots = self.describe_cluster_snapshots(
            cluster_identifier=cluster_identifier
        )
        for snapshot in snapshots:
            if snapshot.snapshot_type == "automated":
                self.snapshots.pop(snapshot.snapshot_identifier)

    def delete_cluster(self, **cluster_kwargs: Any) -> Cluster:
        cluster_identifier = cluster_kwargs.pop("cluster_identifier")
        cluster_skip_final_snapshot = cluster_kwargs.pop("skip_final_snapshot")
        cluster_snapshot_identifer = cluster_kwargs.pop(
            "final_cluster_snapshot_identifier"
        )

        if cluster_identifier in self.clusters:
            if (
                cluster_skip_final_snapshot is False
                and cluster_snapshot_identifer is None
            ):
                raise InvalidParameterCombinationError(
                    "FinalClusterSnapshotIdentifier is required unless "
                    "SkipFinalClusterSnapshot is specified."
                )
            if (
                cluster_skip_final_snapshot is False
                and cluster_snapshot_identifer is not None
            ):  # create snapshot
                cluster = self.describe_clusters(cluster_identifier)[0]
                self.create_cluster_snapshot(
                    cluster_identifier,
                    cluster_snapshot_identifer,
                    cluster.region,
                    cluster.tags,
                )
            self.delete_automated_snapshots(cluster_identifier)
            return self.clusters.pop(cluster_identifier)
        raise ClusterNotFoundError(cluster_identifier)

    def create_cluster_subnet_group(
        self,
        cluster_subnet_group_name: str,
        description: str,
        subnet_ids: List[str],
        region_name: str,
        tags: Optional[List[Dict[str, str]]] = None,
    ) -> SubnetGroup:
        subnet_group = SubnetGroup(
            self.ec2_backend,
            cluster_subnet_group_name,
            description,
            subnet_ids,
            region_name,
            tags,
        )
        self.subnet_groups[cluster_subnet_group_name] = subnet_group
        return subnet_group

    def describe_cluster_subnet_groups(
        self, subnet_identifier: Optional[str] = None
    ) -> List[SubnetGroup]:
        if subnet_identifier:
            if subnet_identifier in self.subnet_groups:
                return [self.subnet_groups[subnet_identifier]]
            raise ClusterSubnetGroupNotFoundError(subnet_identifier)
        return list(self.subnet_groups.values())

    def delete_cluster_subnet_group(self, subnet_identifier: str) -> SubnetGroup:
        if subnet_identifier in self.subnet_groups:
            return self.subnet_groups.pop(subnet_identifier)
        raise ClusterSubnetGroupNotFoundError(subnet_identifier)

    def create_cluster_security_group(
        self,
        cluster_security_group_name: str,
        description: str,
        tags: Optional[List[Dict[str, str]]] = None,
    ) -> SecurityGroup:
        security_group = SecurityGroup(
            cluster_security_group_name,
            description,
            self.account_id,
            self.region_name,
            tags,
        )
        self.security_groups[cluster_security_group_name] = security_group
        return security_group

    def describe_cluster_security_groups(
        self, security_group_name: Optional[str] = None
    ) -> List[SecurityGroup]:
        if security_group_name:
            if security_group_name in self.security_groups:
                return [self.security_groups[security_group_name]]
            raise ClusterSecurityGroupNotFoundError(security_group_name)
        return list(self.security_groups.values())

    def delete_cluster_security_group(
        self, security_group_identifier: str
    ) -> SecurityGroup:
        if security_group_identifier in self.security_groups:
            return self.security_groups.pop(security_group_identifier)
        raise ClusterSecurityGroupNotFoundError(security_group_identifier)

    def authorize_cluster_security_group_ingress(
        self, security_group_name: str, cidr_ip: str
    ) -> SecurityGroup:
        security_group = self.security_groups.get(security_group_name)
        if not security_group:
            raise ClusterSecurityGroupNotFoundFaultError()

        # just adding the cidr_ip as ingress rule for now as there is no security rule
        security_group.ingress_rules.append(cidr_ip)

        return security_group

    def create_cluster_parameter_group(
        self,
        cluster_parameter_group_name: str,
        group_family: str,
        description: str,
        region_name: str,
        tags: Optional[List[Dict[str, str]]] = None,
    ) -> ParameterGroup:
        parameter_group = ParameterGroup(
            cluster_parameter_group_name,
            group_family,
            description,
            self.account_id,
            region_name,
            tags,
        )
        self.parameter_groups[cluster_parameter_group_name] = parameter_group

        return parameter_group

    def describe_cluster_parameter_groups(
        self, parameter_group_name: Optional[str] = None
    ) -> List[ParameterGroup]:
        if parameter_group_name:
            if parameter_group_name in self.parameter_groups:
                return [self.parameter_groups[parameter_group_name]]
            raise ClusterParameterGroupNotFoundError(parameter_group_name)
        return list(self.parameter_groups.values())

    def delete_cluster_parameter_group(
        self, parameter_group_name: str
    ) -> ParameterGroup:
        if parameter_group_name in self.parameter_groups:
            return self.parameter_groups.pop(parameter_group_name)
        raise ClusterParameterGroupNotFoundError(parameter_group_name)

    def create_cluster_snapshot(
        self,
        cluster_identifier: str,
        snapshot_identifier: str,
        region_name: str,
        tags: Optional[List[Dict[str, str]]],
        snapshot_type: str = "manual",
    ) -> Snapshot:
        cluster = self.clusters.get(cluster_identifier)
        if not cluster:
            raise ClusterNotFoundError(cluster_identifier)
        if self.snapshots.get(snapshot_identifier) is not None:
            raise ClusterSnapshotAlreadyExistsError(snapshot_identifier)
        snapshot = Snapshot(
            cluster,
            snapshot_identifier,
            self.account_id,
            region_name,
            tags,
            snapshot_type=snapshot_type,
        )
        self.snapshots[snapshot_identifier] = snapshot
        return snapshot

    def describe_cluster_snapshots(
        self,
        cluster_identifier: Optional[str] = None,
        snapshot_identifier: Optional[str] = None,
        snapshot_type: Optional[str] = None,
    ) -> List[Snapshot]:
        snapshot_types = (
            ["automated", "manual"] if snapshot_type is None else [snapshot_type]
        )
        if cluster_identifier:
            cluster_snapshots = []
            for snapshot in self.snapshots.values():
                if snapshot.cluster.cluster_identifier == cluster_identifier:
                    if snapshot.snapshot_type in snapshot_types:
                        cluster_snapshots.append(snapshot)
            if cluster_snapshots:
                return cluster_snapshots

        if snapshot_identifier:
            if snapshot_identifier in self.snapshots:
                if self.snapshots[snapshot_identifier].snapshot_type in snapshot_types:
                    return [self.snapshots[snapshot_identifier]]
            raise ClusterSnapshotNotFoundError(snapshot_identifier)

        return list(self.snapshots.values())

    def delete_cluster_snapshot(self, snapshot_identifier: str) -> Snapshot:
        if snapshot_identifier not in self.snapshots:
            raise ClusterSnapshotNotFoundError(snapshot_identifier)

        snapshot = self.describe_cluster_snapshots(
            snapshot_identifier=snapshot_identifier
        )[0]
        if snapshot.snapshot_type == "automated":
            raise InvalidClusterSnapshotStateFaultError(snapshot_identifier)
        deleted_snapshot = self.snapshots.pop(snapshot_identifier)
        deleted_snapshot.status = "deleted"
        return deleted_snapshot

    def restore_from_cluster_snapshot(self, **kwargs: Any) -> Cluster:
        snapshot_identifier = kwargs.pop("snapshot_identifier")
        snapshot = self.describe_cluster_snapshots(
            snapshot_identifier=snapshot_identifier
        )[0]
        create_kwargs = {
            "node_type": snapshot.cluster.node_type,
            "master_username": snapshot.cluster.master_username,
            "master_user_password": snapshot.cluster.master_user_password,
            "db_name": snapshot.cluster.db_name,
            "cluster_type": "multi-node"
            if snapshot.cluster.number_of_nodes > 1
            else "single-node",
            "availability_zone": snapshot.cluster.availability_zone,
            "port": snapshot.cluster.port,
            "cluster_version": snapshot.cluster.cluster_version,
            "number_of_nodes": snapshot.cluster.number_of_nodes,
            "encrypted": snapshot.cluster.encrypted,
            "tags": snapshot.cluster.tags,
            "restored_from_snapshot": True,
            "enhanced_vpc_routing": snapshot.cluster.enhanced_vpc_routing,
        }
        create_kwargs.update(kwargs)
        return self.create_cluster(**create_kwargs)

    def create_snapshot_copy_grant(self, **kwargs: Any) -> SnapshotCopyGrant:
        snapshot_copy_grant_name = kwargs["snapshot_copy_grant_name"]
        kms_key_id = kwargs["kms_key_id"]
        if snapshot_copy_grant_name not in self.snapshot_copy_grants:
            snapshot_copy_grant = SnapshotCopyGrant(
                snapshot_copy_grant_name, kms_key_id
            )
            self.snapshot_copy_grants[snapshot_copy_grant_name] = snapshot_copy_grant
            return snapshot_copy_grant
        raise SnapshotCopyGrantAlreadyExistsFaultError(snapshot_copy_grant_name)

    def delete_snapshot_copy_grant(self, **kwargs: Any) -> SnapshotCopyGrant:
        snapshot_copy_grant_name = kwargs["snapshot_copy_grant_name"]
        if snapshot_copy_grant_name in self.snapshot_copy_grants:
            return self.snapshot_copy_grants.pop(snapshot_copy_grant_name)
        raise SnapshotCopyGrantNotFoundFaultError(snapshot_copy_grant_name)

    def describe_snapshot_copy_grants(self, **kwargs: Any) -> List[SnapshotCopyGrant]:
        copy_grants = list(self.snapshot_copy_grants.values())
        snapshot_copy_grant_name = kwargs["snapshot_copy_grant_name"]
        if snapshot_copy_grant_name:
            if snapshot_copy_grant_name in self.snapshot_copy_grants:
                return [self.snapshot_copy_grants[snapshot_copy_grant_name]]
            raise SnapshotCopyGrantNotFoundFaultError(snapshot_copy_grant_name)
        return copy_grants

    def _get_resource_from_arn(self, arn: str) -> TaggableResourceMixin:
        try:
            arn_breakdown = arn.split(":")
            resource_type = arn_breakdown[5]
            if resource_type == "snapshot":
                resource_id = arn_breakdown[6].split("/")[1]
            else:
                resource_id = arn_breakdown[6]
        except IndexError:
            resource_type = resource_id = arn
        resources = self.RESOURCE_TYPE_MAP.get(resource_type)
        if resources is None:
            message = (
                "Tagging is not supported for this type of resource: "
                f"'{resource_type}' (the ARN is potentially malformed, "
                "please check the ARN documentation for more information)"
            )
            raise ResourceNotFoundFaultError(message=message)
        try:
            resource = resources[resource_id]
        except KeyError:
            raise ResourceNotFoundFaultError(resource_type, resource_id)
        return resource

    @staticmethod
    def _describe_tags_for_resources(resources: Iterable[Any]) -> List[Dict[str, Any]]:  # type: ignore[misc]
        tagged_resources = []
        for resource in resources:
            for tag in resource.tags:
                data = {
                    "ResourceName": resource.arn,
                    "ResourceType": resource.resource_type,
                    "Tag": {"Key": tag["Key"], "Value": tag["Value"]},
                }
                tagged_resources.append(data)
        return tagged_resources

    def _describe_tags_for_resource_type(
        self, resource_type: str
    ) -> List[Dict[str, Any]]:
        resources = self.RESOURCE_TYPE_MAP.get(resource_type)
        if not resources:
            raise ResourceNotFoundFaultError(resource_type=resource_type)
        return self._describe_tags_for_resources(resources.values())

    def _describe_tags_for_resource_name(
        self, resource_name: str
    ) -> List[Dict[str, Any]]:
        resource = self._get_resource_from_arn(resource_name)
        return self._describe_tags_for_resources([resource])

    def create_tags(self, resource_name: str, tags: List[Dict[str, str]]) -> None:
        resource = self._get_resource_from_arn(resource_name)
        resource.create_tags(tags)

    def describe_tags(
        self, resource_name: str, resource_type: str
    ) -> List[Dict[str, Any]]:
        if resource_name and resource_type:
            raise InvalidParameterValueError(
                "You cannot filter a list of resources using an Amazon "
                "Resource Name (ARN) and a resource type together in the "
                "same request. Retry the request using either an ARN or "
                "a resource type, but not both."
            )
        if resource_type:
            return self._describe_tags_for_resource_type(resource_type.lower())
        if resource_name:
            return self._describe_tags_for_resource_name(resource_name)
        # If name and type are not specified, return all tagged resources.
        # TODO: Implement aws marker pagination
        tagged_resources = []
        for resource_type in self.RESOURCE_TYPE_MAP:
            try:
                tagged_resources += self._describe_tags_for_resource_type(resource_type)
            except ResourceNotFoundFaultError:
                pass
        return tagged_resources

    def delete_tags(self, resource_name: str, tag_keys: List[str]) -> None:
        resource = self._get_resource_from_arn(resource_name)
        resource.delete_tags(tag_keys)

    def get_cluster_credentials(
        self,
        cluster_identifier: str,
        db_user: str,
        auto_create: bool,
        duration_seconds: int,
    ) -> Dict[str, Any]:
        if duration_seconds < 900 or duration_seconds > 3600:
            raise InvalidParameterValueError(
                "Token duration must be between 900 and 3600 seconds"
            )
        expiration = datetime.datetime.now(tzutc()) + datetime.timedelta(
            0, duration_seconds
        )
        if cluster_identifier in self.clusters:
            user_prefix = "IAM:" if auto_create is False else "IAMA:"
            db_user = user_prefix + db_user
            return {
                "DbUser": db_user,
                "DbPassword": mock_random.get_random_string(32),
                "Expiration": expiration,
            }
        raise ClusterNotFoundError(cluster_identifier)


redshift_backends = BackendDict(RedshiftBackend, "redshift")
