"""
移除成员 Use Case 测试
"""

from unittest.mock import Mock

import pytest

from packages.application.workspace.remove_member_use_case import (
    LeaveWorkspaceRequest,
    LeaveWorkspaceUseCase,
    RemoveMemberRequest,
    RemoveMemberUseCase,
)
from packages.domain.entities import Workspace, WorkspaceMember, WorkspaceMemberRole


class TestRemoveMemberUseCase:
    """移除成员测试"""

    @pytest.fixture
    def mock_workspace_repo(self):
        repo = Mock()
        repo.find_by_id = Mock(return_value=None)
        return repo

    @pytest.fixture
    def mock_member_repo(self):
        repo = Mock()
        repo.find_by_workspace_and_user = Mock(return_value=None)
        repo.delete = Mock(return_value=True)
        return repo

    @pytest.fixture
    def use_case(self, mock_workspace_repo, mock_member_repo):
        return RemoveMemberUseCase(
            workspace_repository=mock_workspace_repo,
            workspace_member_repository=mock_member_repo,
        )

    @pytest.fixture
    def test_workspace(self):
        return Workspace(
            id="workspace-123",
            name="Test Workspace",
            owner_user_id="owner-id",
        )

    def test_remove_member_success_by_owner(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试 Owner 移除成员成功"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        owner_member = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="owner-id",
            role=WorkspaceMemberRole.OWNER,
        )

        target_member = WorkspaceMember(
            id="member-2",
            workspace_id="workspace-123",
            user_id="target-id",
            role=WorkspaceMemberRole.MEMBER,
        )

        mock_member_repo.find_by_workspace_and_user.side_effect = [
            owner_member,
            target_member,
        ]

        request = RemoveMemberRequest(
            workspace_id="workspace-123",
            requester_user_id="owner-id",
            target_user_id="target-id",
        )

        success, error = use_case.execute(request)

        assert success is True
        assert error is None
        mock_member_repo.delete.assert_called_once_with("member-2")

    def test_remove_member_success_by_admin(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试 Admin 移除普通成员成功"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        admin_member = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="admin-id",
            role=WorkspaceMemberRole.ADMIN,
        )

        target_member = WorkspaceMember(
            id="member-2",
            workspace_id="workspace-123",
            user_id="target-id",
            role=WorkspaceMemberRole.VIEWER,
        )

        mock_member_repo.find_by_workspace_and_user.side_effect = [
            admin_member,
            target_member,
        ]

        request = RemoveMemberRequest(
            workspace_id="workspace-123",
            requester_user_id="admin-id",
            target_user_id="target-id",
        )

        success, error = use_case.execute(request)

        assert success is True
        assert error is None

    def test_remove_member_cannot_remove_owner(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试不能移除 Owner"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        admin_member = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="admin-id",
            role=WorkspaceMemberRole.ADMIN,
        )

        owner_member = WorkspaceMember(
            id="member-2",
            workspace_id="workspace-123",
            user_id="owner-id",
            role=WorkspaceMemberRole.OWNER,
        )

        mock_member_repo.find_by_workspace_and_user.side_effect = [
            admin_member,
            owner_member,
        ]

        request = RemoveMemberRequest(
            workspace_id="workspace-123",
            requester_user_id="admin-id",
            target_user_id="owner-id",
        )

        success, error = use_case.execute(request)

        assert success is False
        assert error == "Cannot remove the workspace owner"

    def test_remove_member_admin_cannot_remove_admin(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试 Admin 不能移除另一个 Admin"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        admin_member1 = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="admin-id-1",
            role=WorkspaceMemberRole.ADMIN,
        )

        admin_member2 = WorkspaceMember(
            id="member-2",
            workspace_id="workspace-123",
            user_id="admin-id-2",
            role=WorkspaceMemberRole.ADMIN,
        )

        mock_member_repo.find_by_workspace_and_user.side_effect = [
            admin_member1,
            admin_member2,
        ]

        request = RemoveMemberRequest(
            workspace_id="workspace-123",
            requester_user_id="admin-id-1",
            target_user_id="admin-id-2",
        )

        success, error = use_case.execute(request)

        assert success is False
        assert error == "Admins cannot remove other admins"

    def test_remove_member_cannot_remove_self(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试不能移除自己"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        admin_member = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="admin-id",
            role=WorkspaceMemberRole.ADMIN,
        )

        mock_member_repo.find_by_workspace_and_user.return_value = admin_member

        request = RemoveMemberRequest(
            workspace_id="workspace-123",
            requester_user_id="admin-id",
            target_user_id="admin-id",
        )

        success, error = use_case.execute(request)

        assert success is False
        assert "Cannot remove yourself" in error

    def test_remove_member_no_permission(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试普通成员没有权限移除"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        regular_member = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="user-id",
            role=WorkspaceMemberRole.MEMBER,
        )

        mock_member_repo.find_by_workspace_and_user.return_value = regular_member

        request = RemoveMemberRequest(
            workspace_id="workspace-123",
            requester_user_id="user-id",
            target_user_id="target-id",
        )

        success, error = use_case.execute(request)

        assert success is False
        assert error == "Only owners and admins can remove members"


class TestLeaveWorkspaceUseCase:
    """离开 Workspace 测试"""

    @pytest.fixture
    def mock_workspace_repo(self):
        repo = Mock()
        repo.find_by_id = Mock(return_value=None)
        return repo

    @pytest.fixture
    def mock_member_repo(self):
        repo = Mock()
        repo.find_by_workspace_and_user = Mock(return_value=None)
        repo.delete = Mock(return_value=True)
        return repo

    @pytest.fixture
    def use_case(self, mock_workspace_repo, mock_member_repo):
        return LeaveWorkspaceUseCase(
            workspace_repository=mock_workspace_repo,
            workspace_member_repository=mock_member_repo,
        )

    @pytest.fixture
    def test_workspace(self):
        return Workspace(
            id="workspace-123",
            name="Test Workspace",
            owner_user_id="owner-id",
        )

    def test_leave_workspace_success(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试离开工作空间成功"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        member = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="user-id",
            role=WorkspaceMemberRole.MEMBER,
        )
        mock_member_repo.find_by_workspace_and_user.return_value = member

        request = LeaveWorkspaceRequest(
            workspace_id="workspace-123",
            user_id="user-id",
        )

        success, error = use_case.execute(request)

        assert success is True
        assert error is None
        mock_member_repo.delete.assert_called_once_with("member-1")

    def test_leave_workspace_owner_cannot_leave(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试 Owner 不能离开"""
        mock_workspace_repo.find_by_id.return_value = test_workspace

        owner_member = WorkspaceMember(
            id="member-1",
            workspace_id="workspace-123",
            user_id="owner-id",
            role=WorkspaceMemberRole.OWNER,
        )
        mock_member_repo.find_by_workspace_and_user.return_value = owner_member

        request = LeaveWorkspaceRequest(
            workspace_id="workspace-123",
            user_id="owner-id",
        )

        success, error = use_case.execute(request)

        assert success is False
        assert "Owner cannot leave workspace" in error

    def test_leave_workspace_not_member(
        self,
        use_case,
        mock_workspace_repo,
        mock_member_repo,
        test_workspace,
    ):
        """测试不是成员"""
        mock_workspace_repo.find_by_id.return_value = test_workspace
        mock_member_repo.find_by_workspace_and_user.return_value = None

        request = LeaveWorkspaceRequest(
            workspace_id="workspace-123",
            user_id="user-id",
        )

        success, error = use_case.execute(request)

        assert success is False
        assert error == "You are not a member of this workspace"