# coding: utf-8

# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
# --------------------------------------------------------------------------

import copy
import pytest
from devtools_testutils import recorded_by_proxy
from _router_test_case import RouterRecordedTestCase
from _decorators import RouterPreparers
from _validators import DistributionPolicyValidator
from azure.communication.jobrouter._shared.utils import parse_connection_str  # pylint:disable=protected-access
from azure.core.exceptions import ResourceNotFoundError
from azure.communication.jobrouter import (
    JobRouterAdministrationClient,
)
from azure.communication.jobrouter.models import (
    BestWorkerMode,
    LongestIdleMode,
    RoundRobinMode,
    DistributionPolicy,
)

min_concurrent_offer_count = 1
max_concurrent_offer_count = 1

distribution_modes = [
    BestWorkerMode(min_concurrent_offers=min_concurrent_offer_count, max_concurrent_offers=max_concurrent_offer_count),
    LongestIdleMode(min_concurrent_offers=min_concurrent_offer_count, max_concurrent_offers=max_concurrent_offer_count),
    RoundRobinMode(min_concurrent_offers=min_concurrent_offer_count, max_concurrent_offers=max_concurrent_offer_count),
]


# The test class name needs to start with "Test" to get collected by pytest
class TestDistributionPolicy(RouterRecordedTestCase):
    def clean_up(self, **kwargs):
        # delete in live mode
        if not self.is_playback():
            router_client: JobRouterAdministrationClient = self.create_admin_client()
            if self._testMethodName in self.distribution_policy_ids and any(
                self.distribution_policy_ids[self._testMethodName]
            ):
                for policy_id in set(self.distribution_policy_ids[self._testMethodName]):
                    router_client.delete_distribution_policy(distribution_policy_id=policy_id)

    @RouterPreparers.router_test_decorator
    @recorded_by_proxy
    def test_create_distribution_policy(self, **kwargs):
        dp_identifier = "_tst_create_dp"
        router_client: JobRouterAdministrationClient = self.create_admin_client()

        for mode in distribution_modes:
            policy: DistributionPolicy = DistributionPolicy(
                offer_expires_after_seconds=10.0,
                mode=mode,
                name=dp_identifier,
            )

            distribution_policy_response = router_client.upsert_distribution_policy(dp_identifier, policy)

            # add for cleanup
            self.distribution_policy_ids[self._testMethodName] = [dp_identifier]

            assert distribution_policy_response is not None
            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=distribution_policy_response,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode,
            )

    @RouterPreparers.router_test_decorator
    @recorded_by_proxy
    def test_update_distribution_policy(self, **kwargs):
        dp_identifier = "_tst_update_dp"
        router_client: JobRouterAdministrationClient = self.create_admin_client()

        for mode in distribution_modes:
            # Arrange

            policy: DistributionPolicy = DistributionPolicy(
                offer_expires_after_seconds=10.0,
                mode=mode,
                name=dp_identifier,
            )

            distribution_policy_response = router_client.upsert_distribution_policy(dp_identifier, policy)

            # add for cleanup
            self.distribution_policy_ids[self._testMethodName] = [dp_identifier]

            assert distribution_policy_response is not None
            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=distribution_policy_response,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode,
            )

            # Act
            mode_copy = copy.deepcopy(mode)
            mode_copy.min_concurrent_offers = 2
            mode_copy.max_concurrent_offers = 2
            distribution_policy_response.mode = mode_copy

            updated_distribution_policy = router_client.upsert_distribution_policy(
                dp_identifier, distribution_policy_response
            )

            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=updated_distribution_policy,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode_copy,
            )

    @RouterPreparers.router_test_decorator
    @recorded_by_proxy
    def test_update_distribution_policy_w_kwargs(self, **kwargs):
        dp_identifier = "_tst_update_dp_w_kwargs"
        router_client: JobRouterAdministrationClient = self.create_admin_client()

        for mode in distribution_modes:
            # Arrange

            policy: DistributionPolicy = DistributionPolicy(
                offer_expires_after_seconds=10.0,
                mode=mode,
                name=dp_identifier,
            )

            distribution_policy_response = router_client.upsert_distribution_policy(dp_identifier, policy)

            # add for cleanup
            self.distribution_policy_ids[self._testMethodName] = [dp_identifier]

            assert distribution_policy_response is not None
            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=distribution_policy_response,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode,
            )

            # Act
            mode_copy = copy.deepcopy(mode)
            mode_copy.min_concurrent_offers = 2
            mode_copy.max_concurrent_offers = 2
            distribution_policy_response.mode = mode_copy

            updated_distribution_policy = router_client.upsert_distribution_policy(
                dp_identifier, mode=distribution_policy_response.mode
            )

            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=updated_distribution_policy,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode_copy,
            )

    @RouterPreparers.router_test_decorator
    @recorded_by_proxy
    def test_get_distribution_policy(self, **kwargs):
        dp_identifier = "_tst_get_dp"
        router_client: JobRouterAdministrationClient = self.create_admin_client()

        for mode in distribution_modes:
            policy: DistributionPolicy = DistributionPolicy(
                offer_expires_after_seconds=10.0,
                mode=mode,
                name=dp_identifier,
            )

            distribution_policy_response = router_client.upsert_distribution_policy(dp_identifier, policy)

            # add for cleanup
            self.distribution_policy_ids[self._testMethodName] = [dp_identifier]

            assert distribution_policy_response is not None
            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=distribution_policy_response,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode,
            )

            queried_distribution_policy = router_client.get_distribution_policy(distribution_policy_id=dp_identifier)
            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=queried_distribution_policy,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode,
            )

    @RouterPreparers.router_test_decorator
    @recorded_by_proxy
    def test_delete_distribution_policy(self, **kwargs):
        dp_identifier = "_tst_delete_dp"
        router_client: JobRouterAdministrationClient = self.create_admin_client()

        for mode in distribution_modes:
            policy: DistributionPolicy = DistributionPolicy(
                offer_expires_after_seconds=10.0,
                mode=mode,
                name=dp_identifier,
            )

            distribution_policy_response = router_client.upsert_distribution_policy(dp_identifier, policy)

            assert distribution_policy_response is not None
            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=distribution_policy_response,
                identifier=dp_identifier,
                name=dp_identifier,
                offer_expires_after_seconds=10.0,
                mode=mode,
            )

            router_client.delete_distribution_policy(distribution_policy_id=dp_identifier)
            with pytest.raises(ResourceNotFoundError) as nfe:
                router_client.get_distribution_policy(distribution_policy_id=dp_identifier)
            assert nfe.value.reason == "Not Found"
            assert nfe.value.status_code == 404

    @RouterPreparers.router_test_decorator
    @recorded_by_proxy
    def test_list_distribution_policy(self, **kwargs):
        dp_identifiers = ["_tst_list_dp_1", "_tst_list_dp_2", "_tst_list_dp_3"]
        created_dp_response = {}
        policy_count = len(dp_identifiers)
        router_client: JobRouterAdministrationClient = self.create_admin_client()
        self.distribution_policy_ids[self._testMethodName] = []

        for identifier in dp_identifiers:
            policy: DistributionPolicy = DistributionPolicy(
                offer_expires_after_seconds=10.0,
                mode=distribution_modes[0],
                name=identifier,
            )

            distribution_policy_response = router_client.upsert_distribution_policy(identifier, policy)

            # add for cleanup
            self.distribution_policy_ids[self._testMethodName].append(identifier)

            assert distribution_policy_response is not None
            DistributionPolicyValidator.validate_distribution_policy(
                distribution_policy=distribution_policy_response,
                identifier=identifier,
                name=identifier,
                offer_expires_after_seconds=10.0,
                mode=distribution_modes[0],
            )
            created_dp_response[distribution_policy_response.id] = distribution_policy_response

        policies = router_client.list_distribution_policies(results_per_page=2)
        for policy_page in policies.by_page():
            list_of_policies = list(policy_page)
            assert len(list_of_policies) <= 2

            for policy_item in list_of_policies:
                response_at_creation = created_dp_response.get(policy_item.id, None)

                if not response_at_creation:
                    continue

                DistributionPolicyValidator.validate_distribution_policy(
                    distribution_policy=policy_item,
                    identifier=response_at_creation.id,
                    name=response_at_creation.name,
                    offer_expires_after_seconds=response_at_creation.offer_expires_after_seconds,
                    mode=response_at_creation.mode,
                )
                policy_count -= 1

        # all policies created were listed
        assert policy_count == 0