import pytest

from copilot.rpc import PermissionDecisionApproveOnce, PermissionDecisionUserNotAvailable
from copilot.session import CopilotSession, PermissionHandler, PermissionNoResult
from copilot.session_events import (
    PermissionRequestCustomTool,
    PermissionRequestedData,
    PermissionRequestRead,
)


def test_permission_event_exposes_managed_approval_required() -> None:
    data = PermissionRequestedData.from_dict(
        {
            "permissionRequest": {
                "kind": "read",
                "intention": "Read managed content",
                "path": "/workspace/file.txt",
                "managedApprovalRequired": True,
            },
            "requestId": "permission-1",
        }
    )

    assert data.permission_request.managed_approval_required is True
    assert data.to_dict()["permissionRequest"]["managedApprovalRequired"] is True


def test_managed_metadata_preserves_existing_positional_constructor_order() -> None:
    request = PermissionRequestCustomTool(
        "Run a custom tool",
        "custom_tool",
        {"value": 1},
        "tool-call-1",
    )

    assert request.tool_call_id == "tool-call-1"
    assert request.managed_approval_required is None

    read_request = PermissionRequestRead(
        "Read content",
        "/workspace/file.txt",
        True,
        False,
        "Use the sandbox",
        "tool-call-2",
    )

    assert read_request.managed_approval_required is True
    assert read_request.request_sandbox_bypass is False
    assert read_request.request_sandbox_bypass_reason == "Use the sandbox"
    assert read_request.tool_call_id == "tool-call-2"


def test_approve_all_rejects_managed_settings_session() -> None:
    request = PermissionRequestRead(
        intention="Read ordinary content",
        path="/workspace/file.txt",
    )

    with pytest.raises(RuntimeError, match="managed settings are enabled"):
        PermissionHandler.approve_all(
            request,
            {"session_id": "session-1", "managed_settings_enabled": True},
        )


def test_approve_all_rejects_managed_request_in_managed_settings_session() -> None:
    request = PermissionRequestRead(
        intention="Read managed content",
        path="/workspace/file.txt",
        managed_approval_required=True,
    )

    with pytest.raises(RuntimeError, match="managed settings are enabled"):
        PermissionHandler.approve_all(
            request,
            {"session_id": "session-1", "managed_settings_enabled": True},
        )


def test_approve_all_approves_ordinary_request() -> None:
    request = PermissionRequestRead(
        intention="Read ordinary content",
        path="/workspace/file.txt",
    )

    assert isinstance(
        PermissionHandler.approve_all(
            request,
            {"session_id": "session-1", "managed_settings_enabled": False},
        ),
        PermissionDecisionApproveOnce,
    )


def test_approve_all_leaves_managed_request_pending_when_session_flag_is_absent() -> None:
    request = PermissionRequestRead(
        intention="Read managed content",
        path="/workspace/file.txt",
        managed_approval_required=True,
    )

    assert isinstance(
        PermissionHandler.approve_all(request, {"session_id": "session-1"}),
        PermissionNoResult,
    )


async def test_legacy_permission_callback_rejects_no_result() -> None:
    request = PermissionRequestRead(
        intention="Read managed content",
        path="/workspace/file.txt",
        managed_approval_required=True,
    )
    session = CopilotSession("session-1", client=None)
    session._register_permission_handler(lambda _request, _invocation: PermissionNoResult())

    result = await session._handle_permission_request(request)

    assert isinstance(result, PermissionDecisionUserNotAvailable)