"""End-to-end integration tests for the FusionAGI API."""

from __future__ import annotations

starlette = __import__("pytest").importorskip("starlette")
fastapi = __import__("pytest").importorskip("fastapi")

from starlette.testclient import TestClient  # noqa: E402

from fusionagi.api.app import create_app  # noqa: E402


def _client() -> TestClient:
    app = create_app(cors_origins=["*"])
    return TestClient(app)


class TestSessionLifecycle:
    """Test the full session lifecycle: create → prompt → response."""

    def test_create_session(self) -> None:
        c = _client()
        resp = c.post("/v1/sessions", json={"user_id": "test-user"})
        assert resp.status_code == 200
        data = resp.json()
        assert "session_id" in data

    def test_prompt_requires_session(self) -> None:
        c = _client()
        resp = c.post("/v1/sessions", json={"user_id": "test-user"})
        sid = resp.json()["session_id"]
        resp = c.post(f"/v1/sessions/{sid}/prompt", json={"prompt": "Hello"})
        assert resp.status_code == 200

    def test_unknown_session_returns_error(self) -> None:
        c = _client()
        resp = c.post("/v1/sessions/nonexistent/prompt", json={"prompt": "Hello"})
        assert resp.status_code in (404, 422, 500)


class TestAdminEndpoints:
    """Test admin API endpoints."""

    def test_system_status(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/status")
        assert resp.status_code == 200
        data = resp.json()
        assert data["status"] == "healthy"
        assert "uptime_seconds" in data

    def test_list_voices(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/voices")
        assert resp.status_code == 200
        assert isinstance(resp.json(), list)

    def test_add_voice(self) -> None:
        c = _client()
        resp = c.post("/v1/admin/voices", json={"name": "Test Voice", "language": "en-US"})
        assert resp.status_code == 200
        assert resp.json()["name"] == "Test Voice"

    def test_ethics_endpoint(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/ethics")
        assert resp.status_code == 200
        assert isinstance(resp.json(), list)

    def test_consequences_endpoint(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/consequences")
        assert resp.status_code == 200

    def test_insights_endpoint(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/insights")
        assert resp.status_code == 200

    def test_conversation_style(self) -> None:
        c = _client()
        resp = c.post("/v1/admin/conversation-style", json={"formality": "formal", "verbosity": "concise"})
        assert resp.status_code == 200

    def test_telemetry(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/telemetry")
        assert resp.status_code == 200
        assert "traces" in resp.json()


class TestTenantEndpoints:
    """Test multi-tenant API."""

    def test_current_tenant_default(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/tenants/current")
        assert resp.status_code == 200
        data = resp.json()
        assert data["tenant_id"] == "default"
        assert data["is_default"] is True

    def test_current_tenant_custom(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/tenants/current", headers={"X-Tenant-ID": "acme"})
        assert resp.status_code == 200
        assert resp.json()["tenant_id"] == "acme"

    def test_list_tenants(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/tenants")
        assert resp.status_code == 200
        assert "tenants" in resp.json()

    def test_create_tenant(self) -> None:
        c = _client()
        resp = c.post("/v1/admin/tenants", json={"id": "test-org", "name": "Test Org"})
        assert resp.status_code == 200
        assert resp.json()["id"] == "test-org"


class TestPluginEndpoints:
    """Test plugin marketplace API."""

    def test_list_plugins(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/plugins")
        assert resp.status_code == 200
        data = resp.json()
        assert "available" in data
        assert "installed" in data

    def test_register_and_install_plugin(self) -> None:
        c = _client()
        resp = c.post("/v1/admin/plugins", json={
            "id": "test-plugin",
            "name": "Test Plugin",
            "description": "A test plugin",
            "version": "1.0.0",
        })
        assert resp.status_code == 200
        assert resp.json()["id"] == "test-plugin"

        resp = c.post("/v1/admin/plugins/test-plugin/install")
        assert resp.status_code == 200
        assert resp.json()["status"] == "installed"


class TestBackupEndpoints:
    """Test backup/restore API."""

    def test_list_backups(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/backups")
        assert resp.status_code == 200
        assert "backups" in resp.json()


class TestVersionNegotiation:
    """Test API version negotiation."""

    def test_version_endpoint(self) -> None:
        c = _client()
        resp = c.get("/version")
        assert resp.status_code == 200
        data = resp.json()
        assert "current_version" in data
        assert "supported_versions" in data

    def test_version_header(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/status")
        assert "x-api-version" in resp.headers

    def test_unsupported_version(self) -> None:
        c = _client()
        resp = c.get("/v1/admin/status", headers={"Accept-Version": "99"})
        assert resp.status_code == 400


class TestSSEStreaming:
    """Test SSE streaming endpoint."""

    def test_sse_endpoint_exists(self) -> None:
        c = _client()
        resp = c.post("/v1/sessions/test-session/stream/sse", json={"prompt": "Hi"})
        assert resp.status_code == 200
        assert resp.headers["content-type"].startswith("text/event-stream")


class TestOpenAICompat:
    """Test OpenAI-compatible endpoints."""

    def test_models_list(self) -> None:
        c = _client()
        resp = c.get("/v1/models")
        assert resp.status_code == 200
        data = resp.json()
        assert "data" in data