"""Authorization and access control scenarios.

Tests for role-based access control (RBAC), attribute-based access control (ABAC),
resource ownership, and permission validation.
"""

from typing import Any
from unittest.mock import patch

import pytest

from tests.test_constants import COUNT_THREE


@pytest.fixture
def mock_permission_manager() -> None:
    """Mock permission manager."""
    with patch("tracertm.api.main.PermissionManager") as mock:
        yield mock.return_value


@pytest.fixture
def user_contexts() -> None:
    """Common user contexts for testing."""
    return {
        "admin": {"user_id": "admin_1", "role": "admin"},
        "user": {"user_id": "user_1", "role": "user"},
        "guest": {"user_id": "guest_1", "role": "guest"},
        "service": {"user_id": "service_1", "role": "service"},
    }


class TestRoleBasedAccessControl:
    """Test role-based access control."""

    def test_admin_role_access(self, mock_permission_manager: Any) -> None:
        """Test admin role has full access."""
        mock_permission_manager.has_permission.return_value = True

        has_access = mock_permission_manager.has_permission(user_role="admin", action="delete", resource="project")

        assert has_access is True

    def test_user_role_limited_access(self, mock_permission_manager: Any) -> None:
        """Test regular user has limited access."""
        mock_permission_manager.has_permission.side_effect = [
            True,  # Can read
            True,  # Can write
            False,  # Cannot delete
        ]

        can_read = mock_permission_manager.has_permission("user", "read", "project")
        can_write = mock_permission_manager.has_permission("user", "write", "project")
        can_delete = mock_permission_manager.has_permission("user", "delete", "project")

        assert can_read is True
        assert can_write is True
        assert can_delete is False

    def test_guest_role_readonly(self, mock_permission_manager: Any) -> None:
        """Test guest role has read-only access."""
        mock_permission_manager.has_permission.side_effect = [
            True,  # Can read
            False,  # Cannot write
            False,  # Cannot delete
        ]

        can_read = mock_permission_manager.has_permission("guest", "read", "project")
        can_write = mock_permission_manager.has_permission("guest", "write", "project")
        can_delete = mock_permission_manager.has_permission("guest", "delete", "project")

        assert can_read is True
        assert can_write is False
        assert can_delete is False

    def test_service_role_specific_access(self, mock_permission_manager: Any) -> None:
        """Test service role has specific access for integrations."""
        mock_permission_manager.has_permission.side_effect = [
            True,  # Can write webhooks
            False,  # Cannot access user data
        ]

        can_write_webhooks = mock_permission_manager.has_permission("service", "write", "webhooks")
        can_access_users = mock_permission_manager.has_permission("service", "read", "user")

        assert can_write_webhooks is True
        assert can_access_users is False

    def test_role_hierarchy(self, mock_permission_manager: Any) -> None:
        """Test role hierarchy (admin > user > guest)."""
        mock_permission_manager.get_role_hierarchy.return_value = {
            "admin": 3,
            "user": 2,
            "guest": 1,
        }

        hierarchy = mock_permission_manager.get_role_hierarchy()

        assert hierarchy["admin"] > hierarchy["user"]
        assert hierarchy["user"] > hierarchy["guest"]


class TestResourceOwnershipControl:
    """Test resource ownership and access control."""

    def test_owner_can_access_own_resource(self, mock_permission_manager: Any) -> None:
        """Test that owners can access their own resources."""
        mock_permission_manager.is_owner.return_value = True

        is_owner = mock_permission_manager.is_owner(user_id="user_1", resource_id="project_1", resource_type="project")

        assert is_owner is True

    def test_non_owner_cannot_access_resource(self, mock_permission_manager: Any) -> None:
        """Test that non-owners cannot access others' resources."""
        mock_permission_manager.is_owner.return_value = False

        is_owner = mock_permission_manager.is_owner(user_id="user_1", resource_id="project_2", resource_type="project")

        assert is_owner is False

    def test_shared_resource_access(self, mock_permission_manager: Any) -> None:
        """Test access to shared resources."""
        mock_permission_manager.has_shared_access.return_value = True

        has_access = mock_permission_manager.has_shared_access(
            user_id="user_2",
            resource_id="project_1",
            resource_type="project",
        )

        assert has_access is True

    def test_resource_ownership_transfer(self, mock_permission_manager: Any) -> None:
        """Test resource ownership transfer."""
        mock_permission_manager.transfer_ownership.return_value = {
            "old_owner": "user_1",
            "new_owner": "user_2",
        }

        result = mock_permission_manager.transfer_ownership(resource_id="project_1", new_owner="user_2")

        assert result["new_owner"] == "user_2"

    def test_ownership_verification(self, mock_permission_manager: Any) -> None:
        """Test ownership verification before operations."""
        mock_permission_manager.verify_ownership.return_value = True

        is_verified = mock_permission_manager.verify_ownership(user_id="user_1", resource_id="project_1")

        assert is_verified is True


class TestAttributeBasedAccessControl:
    """Test attribute-based access control."""

    def test_attribute_based_access_check(self, mock_permission_manager: Any) -> None:
        """Test attribute-based access control."""
        mock_permission_manager.check_attributes.return_value = True

        has_access = mock_permission_manager.check_attributes(
            user_id="user_1",
            attributes={"department": "engineering", "level": "senior"},
            required_attributes={"department": "engineering"},
        )

        assert has_access is True

    def test_multiple_attribute_validation(self, mock_permission_manager: Any) -> None:
        """Test validation of multiple attributes."""
        mock_permission_manager.check_attributes.side_effect = [
            True,  # Has department
            True,  # Has level
            True,  # Has project access
        ]

        dept = mock_permission_manager.check_attributes(
            "user_1",
            attributes={"department": "engineering"},
            required_attributes={"department": "engineering"},
        )
        level = mock_permission_manager.check_attributes(
            "user_1",
            attributes={"level": "senior"},
            required_attributes={"level": "senior"},
        )
        project = mock_permission_manager.check_attributes(
            "user_1",
            attributes={"project_id": "proj_1"},
            required_attributes={"project_id": "proj_1"},
        )

        assert all([dept, level, project])

    def test_time_based_access_control(self, mock_permission_manager: Any) -> None:
        """Test time-based access control."""
        mock_permission_manager.check_time_based_access.return_value = True

        has_access = mock_permission_manager.check_time_based_access(
            user_id="user_1",
            start_time="09:00",
            end_time="17:00",
            timezone="UTC",
        )

        assert has_access is True

    def test_location_based_access_control(self, mock_permission_manager: Any) -> None:
        """Test location-based access control."""
        mock_permission_manager.check_location.return_value = True

        has_access = mock_permission_manager.check_location(
            user_id="user_1",
            ip_address="192.168.1.1",
            allowed_networks=["192.168.0.0/16"],
        )

        assert has_access is True


class TestPermissionCaching:
    """Test permission caching and invalidation."""

    def test_permission_caching(self, mock_permission_manager: Any) -> None:
        """Test permission caching for performance."""
        mock_permission_manager.get_cached_permission.return_value = True

        # First call should cache
        result1 = mock_permission_manager.get_cached_permission("user_1", "read:projects")

        # Second call should use cache
        result2 = mock_permission_manager.get_cached_permission("user_1", "read:projects")

        assert result1 == result2 is True

    def test_permission_cache_invalidation(self, mock_permission_manager: Any) -> None:
        """Test cache invalidation on permission change."""
        mock_permission_manager.invalidate_cache.return_value = True

        is_invalidated = mock_permission_manager.invalidate_cache("user_1")

        assert is_invalidated is True

    def test_permission_cache_expiration(self, mock_permission_manager: Any) -> None:
        """Test permission cache expiration."""
        mock_permission_manager.get_cache_ttl.return_value = 300  # 5 minutes

        ttl = mock_permission_manager.get_cache_ttl()

        assert ttl == 300


class TestProjectLevelAccess:
    """Test project-level access control."""

    def test_project_admin_access(self, mock_permission_manager: Any) -> None:
        """Test project admin has full project access."""
        mock_permission_manager.is_project_admin.return_value = True

        is_admin = mock_permission_manager.is_project_admin(user_id="user_1", project_id="project_1")

        assert is_admin is True

    def test_project_member_access(self, mock_permission_manager: Any) -> None:
        """Test project member access."""
        mock_permission_manager.is_project_member.return_value = True

        is_member = mock_permission_manager.is_project_member(user_id="user_1", project_id="project_1")

        assert is_member is True

    def test_project_non_member_denied(self, mock_permission_manager: Any) -> None:
        """Test non-member denied project access."""
        mock_permission_manager.is_project_member.return_value = False

        is_member = mock_permission_manager.is_project_member(user_id="user_1", project_id="project_2")

        assert is_member is False

    def test_project_role_based_access(self, mock_permission_manager: Any) -> None:
        """Test role-based access within project."""
        mock_permission_manager.get_project_role.return_value = "editor"

        role = mock_permission_manager.get_project_role(user_id="user_1", project_id="project_1")

        assert role == "editor"

    def test_project_permission_override_by_admin(self, mock_permission_manager: Any) -> None:
        """Test that project admins can override permissions."""
        mock_permission_manager.can_override_permission.return_value = True

        can_override = mock_permission_manager.can_override_permission(user_id="admin_1", project_id="project_1")

        assert can_override is True


class TestItemLevelAccess:
    """Test item-level access control."""

    def test_item_read_access_check(self, mock_permission_manager: Any) -> None:
        """Test item read access check."""
        mock_permission_manager.can_read_item.return_value = True

        can_read = mock_permission_manager.can_read_item(user_id="user_1", item_id="item_1")

        assert can_read is True

    def test_item_write_access_check(self, mock_permission_manager: Any) -> None:
        """Test item write access check."""
        mock_permission_manager.can_write_item.return_value = True

        can_write = mock_permission_manager.can_write_item(user_id="user_1", item_id="item_1")

        assert can_write is True

    def test_item_delete_access_check(self, mock_permission_manager: Any) -> None:
        """Test item delete access check."""
        mock_permission_manager.can_delete_item.return_value = False

        can_delete = mock_permission_manager.can_delete_item(user_id="user_1", item_id="item_1")

        assert can_delete is False

    def test_item_visibility_based_on_status(self, mock_permission_manager: Any) -> None:
        """Test item visibility based on status."""
        mock_permission_manager.is_item_visible.return_value = False

        is_visible = mock_permission_manager.is_item_visible(
            user_id="user_1",
            item_id="draft_item",
            item_status="draft",
        )

        assert is_visible is False


class TestDelegatedAccess:
    """Test delegated access and impersonation."""

    def test_admin_can_delegate_access(self, mock_permission_manager: Any) -> None:
        """Test admin can delegate access to others."""
        mock_permission_manager.delegate_access.return_value = {
            "delegated_to": "user_2",
            "resource": "project_1",
            "permission": "admin",
        }

        result = mock_permission_manager.delegate_access(
            from_user="admin_1",
            to_user="user_2",
            resource="project_1",
            permission="admin",
        )

        assert result["delegated_to"] == "user_2"

    def test_delegated_access_revocation(self, mock_permission_manager: Any) -> None:
        """Test revoking delegated access."""
        mock_permission_manager.revoke_delegated_access.return_value = True

        is_revoked = mock_permission_manager.revoke_delegated_access(delegation_id="deleg_1")

        assert is_revoked is True

    def test_admin_impersonation_logging(self, mock_permission_manager: Any) -> None:
        """Test that admin impersonation is logged."""
        mock_permission_manager.impersonate_user.return_value = {
            "impersonating_user": "admin_1",
            "impersonated_user": "user_1",
            "timestamp": "2024-01-01T00:00:00",
        }

        result = mock_permission_manager.impersonate_user(admin_id="admin_1", user_id="user_1")

        assert result["impersonating_user"] == "admin_1"


class TestConditionalAccess:
    """Test conditional access policies."""

    def test_ip_whitelist_enforcement(self, mock_permission_manager: Any) -> None:
        """Test IP whitelist enforcement."""
        mock_permission_manager.check_ip_whitelist.return_value = True

        is_allowed = mock_permission_manager.check_ip_whitelist(user_id="user_1", ip_address="192.168.1.1")

        assert is_allowed is True

    def test_device_trust_check(self, mock_permission_manager: Any) -> None:
        """Test device trust check."""
        mock_permission_manager.is_device_trusted.return_value = True

        is_trusted = mock_permission_manager.is_device_trusted(user_id="user_1", device_id="device_1")

        assert is_trusted is True

    def test_mfa_required_for_sensitive_resources(self, mock_permission_manager: Any) -> None:
        """Test MFA requirement for sensitive resources."""
        mock_permission_manager.requires_mfa.return_value = True

        requires_mfa = mock_permission_manager.requires_mfa(user_id="user_1", resource="admin_panel")

        assert requires_mfa is True

    def test_risk_based_access_control(self, mock_permission_manager: Any) -> None:
        """Test risk-based access control."""
        mock_permission_manager.evaluate_risk.return_value = "high"

        risk_level = mock_permission_manager.evaluate_risk(
            user_id="user_1",
            action="delete_project",
            context={"login_location": "new", "time": "unusual"},
        )

        assert risk_level in {"low", "medium", "high"}


class TestPermissionInheritance:
    """Test permission inheritance in hierarchies."""

    def test_permission_inheritance_from_parent(self, mock_permission_manager: Any) -> None:
        """Test permission inheritance from parent resource."""
        mock_permission_manager.has_inherited_permission.return_value = True

        has_permission = mock_permission_manager.has_inherited_permission(
            user_id="user_1",
            resource_id="item_1",
            parent_resource_id="project_1",
        )

        assert has_permission is True

    def test_permission_override_in_child(self, mock_permission_manager: Any) -> None:
        """Test permission override in child resource."""
        mock_permission_manager.get_effective_permission.return_value = "deny"

        permission = mock_permission_manager.get_effective_permission(user_id="user_1", resource_id="item_1")

        assert permission == "deny"


class TestBulkPermissionOperations:
    """Test bulk permission operations."""

    def test_grant_permissions_to_multiple_users(self, mock_permission_manager: Any) -> None:
        """Test granting permissions to multiple users."""
        mock_permission_manager.grant_bulk_permissions.return_value = {
            "granted": 3,
            "users": ["user_1", "user_2", "user_3"],
        }

        result = mock_permission_manager.grant_bulk_permissions(
            resource_id="project_1",
            users=["user_1", "user_2", "user_3"],
            permission="editor",
        )

        assert result["granted"] == COUNT_THREE

    def test_revoke_permissions_from_multiple_users(self, mock_permission_manager: Any) -> None:
        """Test revoking permissions from multiple users."""
        mock_permission_manager.revoke_bulk_permissions.return_value = {
            "revoked": 3,
        }

        result = mock_permission_manager.revoke_bulk_permissions(
            resource_id="project_1",
            users=["user_1", "user_2", "user_3"],
        )

        assert result["revoked"] == COUNT_THREE


class TestPermissionExplanation:
    """Test permission explanation for debugging."""

    def test_explain_permission_decision(self, mock_permission_manager: Any) -> None:
        """Test explaining why access was granted/denied."""
        mock_permission_manager.explain_permission.return_value = {
            "decision": "allow",
            "reasons": ["User has admin role", "Admin role has all permissions"],
        }

        explanation = mock_permission_manager.explain_permission(user_id="admin_1", action="delete:project")

        assert explanation["decision"] == "allow"
        assert len(explanation["reasons"]) > 0

    def test_explain_access_denial(self, mock_permission_manager: Any) -> None:
        """Test explaining why access was denied."""
        mock_permission_manager.explain_permission.return_value = {
            "decision": "deny",
            "reasons": [
                "User role is 'guest'",
                "Guest role does not have write permission",
            ],
        }

        explanation = mock_permission_manager.explain_permission(user_id="guest_1", action="write:project")

        assert explanation["decision"] == "deny"
