from __future__ import annotations

from typing import Any
from unittest.mock import AsyncMock, MagicMock

import pytest

from remnic_hermes import register
from remnic_hermes.client import RemnicClient
from remnic_hermes.provider import RemnicMemoryProvider


@pytest.fixture
def client() -> RemnicClient:
    return RemnicClient(host="127.0.0.1", port=4318, token="test-token")


@pytest.mark.asyncio
async def test_issue_810_client_methods_call_daemon_mcp_tools(client: RemnicClient) -> None:
    response = MagicMock()
    response.json.return_value = {"jsonrpc": "2.0", "id": 1, "result": {"ok": True}}
    client._http = MagicMock()
    client._http.post = AsyncMock(return_value=response)

    await client.compounding_weekly_synthesize(weekId="2026-W18")
    await client.compounding_promote_candidate(
        week_id="2026-W18",
        candidate_id="candidate-1",
        dryRun=True,
    )

    calls = client._http.post.await_args_list
    tool_names = [call.kwargs["json"]["params"]["name"] for call in calls]
    assert tool_names == [
        "engram.compounding_weekly_synthesize",
        "engram.compounding_promote_candidate",
    ]
    assert calls[0].kwargs["json"]["params"]["arguments"] == {"weekId": "2026-W18"}
    assert calls[1].kwargs["json"]["params"]["arguments"] == {
        "weekId": "2026-W18",
        "candidateId": "candidate-1",
        "dryRun": True,
    }


class FakeContext:
    def __init__(self) -> None:
        self.config: dict[str, Any] = {"remnic": {}}
        self.provider: RemnicMemoryProvider | None = None
        self.tools: dict[str, dict[str, Any]] = {}

    def register_memory_provider(self, provider: RemnicMemoryProvider) -> None:
        self.provider = provider

    def register_tool(self, name: str, schema: dict[str, Any], handler: Any) -> None:
        self.tools[name] = {"schema": schema, "handler": handler}


def test_issue_810_tools_are_registered_with_primary_and_legacy_names() -> None:
    ctx = FakeContext()

    register(ctx)

    expected_primary = {
        "remnic_compounding_weekly_synthesize",
        "remnic_compounding_promote_candidate",
    }
    expected_legacy = {name.replace("remnic_", "engram_") for name in expected_primary}

    assert expected_primary.issubset(ctx.tools)
    assert expected_legacy.issubset(ctx.tools)
    assert ctx.tools["remnic_compounding_promote_candidate"]["schema"]["parameters"]["required"] == [
        "weekId",
        "candidateId",
    ]
    assert "weekId" in ctx.tools["remnic_compounding_weekly_synthesize"]["schema"]["parameters"]["properties"]
    assert ctx.tools["engram_compounding_promote_candidate"]["schema"]["name"] == (
        "engram_compounding_promote_candidate"
    )


@pytest.mark.asyncio
async def test_issue_810_provider_handlers_return_not_connected_before_initialize() -> None:
    provider = RemnicMemoryProvider({})

    assert await provider.compounding_weekly_synthesize() == {"error": "Not connected to Remnic"}
    assert await provider.compounding_promote_candidate("2026-W18", "candidate-1") == {
        "error": "Not connected to Remnic"
    }
