"""Tests for ratatoskr.sessions per docs/contracts/issues/2.contract.md."""

import httpx
import pytest
import respx

from ratatoskr.sessions import (
    SessionApiFailed,
    endpoint_for_plane,
    get_session_bifrost,
)


class TestEndpointForPlane:
    """Issue #17 — endpoint_for_plane: plane name → Worldtree-visible base URL."""

    def test_memory_plane_maps_to_8391(self) -> None:
        """memory [tracer]: 'memory' → http://<host>:8391 (POST-001)."""
        assert endpoint_for_plane("memory", "10.100.10.50") == "http://10.100.10.50:8391"

    def test_affect_plane_maps_to_8390(self) -> None:
        """affect: 'affect' → http://<host>:8390 (POST-001)."""
        assert endpoint_for_plane("affect", "10.100.10.50") == "http://10.100.10.50:8390"

    def test_combined_plane_maps_to_8392(self) -> None:
        """combined [#18 composite]: 'combined' → http://<host>:8392 (POST-001)."""
        assert endpoint_for_plane("combined", "10.100.10.50") == "http://10.100.10.50:8392"

    def test_unknown_plane_raises_value_error(self) -> None:
        """unknown_plane [adversarial]: any other plane → ValueError (PRE-001)."""
        with pytest.raises(ValueError):
            endpoint_for_plane("persona", "10.100.10.50")


class TestGetSessionBifrost:
    """#2 contract — get_session_bifrost (GET /admin/sessions/{id}/bifrost, #176)."""

    @respx.mock
    async def test_happy_uses_admin_bearer(self) -> None:
        """happy [happy,tracer]: 200 → binding dict; request carries the ADMIN bearer (override)."""
        route = respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
            return_value=httpx.Response(
                200,
                json={
                    "endpoint_url": "https://bifrost.example/mcp",
                    "consumer_id": "alice",
                    "connected": True,
                    "capabilities_granted": ["tools:call", "tools:read"],
                    "tools": [{"name": "bifrost.alice.echo", "description": "echo"}],
                },
            )
        )
        async with httpx.AsyncClient(
            base_url="https://w.example",
            headers={"Authorization": "Bearer consumer-key"},
        ) as client:
            state = await get_session_bifrost(client, "s1", admin_key="admin-xyz")
        assert state["connected"] is True
        assert state["tools"][0]["name"] == "bifrost.alice.echo"
        # the request overrode the client's default consumer bearer with the admin key
        assert route.calls[0].request.headers["Authorization"] == "Bearer admin-xyz"

    @respx.mock
    async def test_403_scope_denied(self) -> None:
        """403 [error]: admin key lacks admin.sessions.read → SessionApiFailed(403)."""
        respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
            return_value=httpx.Response(403, json={"error_code": "auth_scope_denied"})
        )
        async with httpx.AsyncClient(base_url="https://w.example") as client:
            with pytest.raises(SessionApiFailed) as exc:
                await get_session_bifrost(client, "s1", admin_key="k")
        assert exc.value.status == 403

    @respx.mock
    async def test_404_not_bound(self) -> None:
        """404 [error]: session_not_bifrost_bound → SessionApiFailed(404)."""
        respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
            return_value=httpx.Response(404, json={"error_code": "session_not_bifrost_bound"})
        )
        async with httpx.AsyncClient(base_url="https://w.example") as client:
            with pytest.raises(SessionApiFailed) as exc:
                await get_session_bifrost(client, "s1", admin_key="k")
        assert exc.value.status == 404

    @respx.mock
    async def test_empty_admin_key_asserts(self) -> None:
        """empty_admin_key [adversarial]: '' → AssertionError; no HTTP issued."""
        route = respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
            return_value=httpx.Response(200, json={})
        )
        async with httpx.AsyncClient(base_url="https://w.example") as client:
            with pytest.raises(AssertionError):
                await get_session_bifrost(client, "s1", admin_key="")
        assert route.call_count == 0