import unittest
from types import SimpleNamespace
from unittest.mock import AsyncMock, Mock
from models import AssistantConfig, RuntimeTaskBackend
from services.brains.prompt_tasks import PromptTaskBridge
from services.tool_executor import ToolExecutor
from services.runtime_variables import DynamicVariableStore


class PromptTaskBridgeTest(unittest.IsolatedAsyncioTestCase):
    def config(self, **kwargs):
        return AssistantConfig(task_backend=RuntimeTaskBackend(id="backend_1", type="opencode"), **kwargs)

    async def test_receipt_and_single_terminal_notification(self):
        cfg = self.config(conversation_id="conv_1", dynamic_variables={"system__agent_id": "asst_1"})
        runtime = SimpleNamespace(session_id="conv_1", transport=object(), tool_executor_factory=None, call_end=SimpleNamespace(ending=False), queue_frame=AsyncMock(), llm=SimpleNamespace(queue_frame=AsyncMock()))
        detach = Mock()
        service = SimpleNamespace(subscribe=Mock(return_value=detach), submit=AsyncMock(return_value={"id": "task_1", "status": "queued"}))
        bridge = PromptTaskBridge(cfg, runtime, ToolExecutor(DynamicVariableStore({})), service)
        functions = bridge.functions()
        self.assertEqual(functions[0][0].name, "delegate_task")
        callback = AsyncMock()
        await functions[0][1](SimpleNamespace(arguments={"instruction": "修复测试"}, tool_call_id="call_1", result_callback=callback))
        self.assertEqual(callback.await_args.args[0]["status"], "accepted")
        task = {"id": "task_1", "sequence": 3, "updatedAt": "2026-10-23", "inputRequest": {}, "status": "succeeded", "summary": "完成", "result": "测试通过"}
        await bridge.on_task(task)
        await bridge.on_task(task)
        runtime.llm.queue_frame.assert_awaited_once()
        self.assertFalse(runtime.llm.queue_frame.await_args.args[0].interruptible)
        bridge.close()
        detach.assert_called_once()

    async def test_test_runtime_never_submits_a_real_task(self):
        runtime = SimpleNamespace(session_id="conv_1", transport=None, tool_executor_factory=object())
        service = SimpleNamespace(submit=AsyncMock())
        bridge = PromptTaskBridge(self.config(), runtime, ToolExecutor(DynamicVariableStore({})), service)
        callback = AsyncMock()
        await bridge.functions()[0][1](SimpleNamespace(result_callback=callback))
        service.submit.assert_not_awaited()
        self.assertEqual(callback.await_args.args[0]["status"], "error")

    async def test_test_runtime_never_controls_an_existing_real_task(self):
        runtime = SimpleNamespace(session_id="conv_1", transport=None, tool_executor_factory=object())
        service = SimpleNamespace(get=AsyncMock(), cancel=AsyncMock(), send_input=AsyncMock())
        bridge = PromptTaskBridge(self.config(), runtime, ToolExecutor(DynamicVariableStore({})), service)
        for schema, handler in bridge.functions()[1:]:
            callback = AsyncMock()
            await handler(SimpleNamespace(function_name=schema.name, arguments={"task_id": "real_task", "message": "yes"}, result_callback=callback))
            self.assertEqual(callback.await_args.args[0]["status"], "error")
        service.get.assert_not_awaited()
        service.cancel.assert_not_awaited()
        service.send_input.assert_not_awaited()

    async def test_bound_instruction_sources_and_snapshot_ignore_model_overrides(self):
        cases = [({"source": "literal", "value": "固定任务"}, "固定任务"),
                 ({"source": "template", "value": "检查 {{project}}"}, "检查 demo"),
                 ({"source": "variable", "variable_name": "project"}, "demo")]
        for source, expected in cases:
            with self.subTest(source=source):
                cfg = self.config(conversation_id="conv_1", dynamic_variables={"system__agent_id": "asst_1"})
                cfg.task_backend.instruction_source = source
                runtime = SimpleNamespace(session_id="conv_1", transport=None, tool_executor_factory=None)
                service = SimpleNamespace(submit=AsyncMock(return_value={"id": "task_1"}))
                store = DynamicVariableStore({"project": "demo"})
                bridge = PromptTaskBridge(cfg, runtime, ToolExecutor(store), service)
                schema, handler = bridge.functions()[0]
                self.assertEqual(schema.to_default_dict()["parameters"]["properties"], {})
                callback = AsyncMock()
                await handler(SimpleNamespace(arguments={"instruction": "unauthorized override"}, tool_call_id="call_1", result_callback=callback))
                self.assertEqual(service.submit.await_args.kwargs["instruction"], expected)
                self.assertEqual(service.submit.await_args.kwargs["variable_state"]["values"], store.values)