from __future__ import annotations

import pytest
from fastapi.testclient import TestClient

from agent_platform.gateway.app import create_app
from agent_platform.gateway.provider import WorkspaceDownload, normalize_workspace_path, workspace_ref
from agent_platform.gateway.schemas import ToolResult, WorkspaceListing, WorkspaceStatus


def test_workspace_paths_cannot_escape() -> None:
    assert str(normalize_workspace_path("src/app.py")) == "src/app.py"
    assert str(normalize_workspace_path("/workspace/src/app.py")) == "src/app.py"
    for value in ("../secret", "/etc/passwd", "a/../../b", "bad\x00name"):
        with pytest.raises(ValueError):
            normalize_workspace_path(value)


def test_workspace_identity_is_stable_and_separate() -> None:
    first = workspace_ref("user-1")
    assert first == workspace_ref("user-1")
    assert first != workspace_ref("user-2")
    assert "user-1" not in first.container_name
    assert "user-1" not in first.network_name


class FakeProvider:
    provider_name = "local-docker"

    async def status(self, user_id: str) -> WorkspaceStatus:
        return WorkspaceStatus(
            workspace_id=workspace_ref(user_id).workspace_id,
            provider="local-docker",
            container_name=workspace_ref(user_id).container_name,
            state="running",
        )

    async def list_files(self, user_id, path, max_depth, limit):
        return ToolResult(ok=True, output=f"{user_id}:{path}")

    async def read_file(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def write_file(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def search_files(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def exec(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def apply_patch(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def start_process(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def poll_process(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def cancel_process(self, *args, **kwargs):
        return ToolResult(ok=True)

    async def browse_files(self, user_id, path):
        return WorkspaceListing(
            path=path,
            entries=[
                {
                    "name": "报告.md",
                    "path": "报告.md",
                    "kind": "file",
                    "size": 12,
                    "modified_at": 1,
                }
            ],
        )

    async def download_file(self, user_id, path):
        return WorkspaceDownload(filename="报告.md", media_type="text/markdown", content=b"report")

    async def archive_files(self, user_id, path):
        return WorkspaceDownload(
            filename="workspace.tar.gz",
            media_type="application/gzip",
            chunks=iter((b"archive",)),
        )


def test_gateway_requires_service_key_and_signed_identity(settings, identity_jwt) -> None:
    app = create_app(settings, provider=FakeProvider())
    with TestClient(app) as client:
        assert client.post("/v1/tools/list_files", json={}).status_code == 401
        headers = {
            "Authorization": f"Bearer {settings.internal_gateway_key}",
            "X-OpenWebUI-User-Jwt": identity_jwt,
        }
        response = client.post("/v1/tools/list_files", headers=headers, json={"path": "src"})
        assert response.status_code == 200
        assert response.json()["output"] == "user-123:src"
        status = client.post("/v1/tools/workspace_status", headers=headers, json={})
        assert status.status_code == 200
        assert status.json()["ok"] is True
        assert status.json()["state"] == "running"
        listing = client.get("/v1/files", headers=headers, params={"path": "."})
        assert listing.status_code == 200
        assert listing.json()["entries"][0]["name"] == "报告.md"
        download = client.get("/v1/files/download", headers=headers, params={"path": "报告.md"})
        assert download.status_code == 200
        assert download.content == b"report"
        assert "filename*=UTF-8''" in download.headers["content-disposition"]
        archive = client.get("/v1/files/archive", headers=headers)
        assert archive.status_code == 200
        assert archive.content == b"archive"


def test_gateway_openapi_does_not_expose_auth_headers(settings) -> None:
    app = create_app(settings, provider=FakeProvider())
    with TestClient(app) as client:
        spec = client.get("/openapi.json").json()
    operation = spec["paths"]["/v1/tools/list_files"]["post"]
    assert all(
        parameter["name"] not in {"Authorization", "X-OpenWebUI-User-Jwt"}
        for parameter in operation.get("parameters", [])
    )