from __future__ import annotations

import os
import tempfile
import unittest
from pathlib import Path
from unittest.mock import patch

from core.executor_docker import _sandbox_env
from platform_sources.registry import (
    MaterialsLibraryProvider,
    MaterialsProjectProvider,
    PaperServerProvider,
    PlatformSourceContext,
    build_platform_source_tools,
)
from platform_sources.materials_library import MaterialsLibrarySearchTool
from platform_sources.materials_project import MaterialsProjectSearchTool
from platform_sources.paper_server import PaperServerSearchTool
from tools.run_python import RunPythonTool


class _Provider:
    capabilities = frozenset({"test"})

    def __init__(self, source_id, *, available=True, tools=None, failure=None):
        self.source_id = source_id
        self._available = available
        self._tools = list(tools or [])
        self._failure = failure

    def available(self):
        if self._failure == "available":
            raise RuntimeError("secret-value")
        return self._available

    def build_tools(self, context):
        if self._failure == "build":
            raise RuntimeError("secret-value")
        return self._tools


class _Tool:
    name = "survivor"


class PlatformSourceRegistryTests(unittest.TestCase):
    def _context(self, root: Path) -> PlatformSourceContext:
        return PlatformSourceContext(root, root, root)

    def test_provider_failure_isolated_and_diagnostic_is_secret_free(self):
        with tempfile.TemporaryDirectory() as tmp, self.assertLogs(
            "platform_sources.registry", level="WARNING"
        ) as logs:
            built = build_platform_source_tools(
                self._context(Path(tmp)),
                providers=(
                    _Provider("bad_available", failure="available"),
                    _Provider("bad_build", failure="build"),
                    _Provider("good", tools=[_Tool()]),
                ),
            )
        self.assertEqual([tool.name for tool in built], ["survivor"])
        output = "\n".join(logs.output)
        self.assertIn("bad_available", output)
        self.assertIn("bad_build", output)
        self.assertIn("RuntimeError", output)
        self.assertNotIn("secret-value", output)

    def test_each_env_gate_is_independent(self):
        providers = (
            PaperServerProvider(),
            MaterialsLibraryProvider(),
            MaterialsProjectProvider(),
        )
        empty = {
            "PAPER_SERVER_API_KEY": "",
            "DOCUMENT_SEARCH_API_KEY": "",
            "MP_API_KEY": "",
        }
        with patch.dict(os.environ, empty, clear=False), patch(
            "platform_sources.registry.MPRester", object()
        ):
            self.assertEqual([provider.available() for provider in providers], [False] * 3)
            for env_name, index in (
                ("PAPER_SERVER_API_KEY", 0),
                ("DOCUMENT_SEARCH_API_KEY", 1),
                ("MP_API_KEY", 2),
            ):
                values = dict(empty)
                values[env_name] = "configured"
                with patch.dict(os.environ, values, clear=False):
                    available = [provider.available() for provider in providers]
                self.assertTrue(available[index])
                self.assertEqual(sum(available), 1)

    def test_invalid_source_config_does_not_block_other_source(self):
        with tempfile.TemporaryDirectory() as tmp, patch.dict(
            os.environ,
            {
                "PAPER_SERVER_API_KEY": "paper-secret",
                "PAPER_SERVER_URL": "not-a-url",
                "DOCUMENT_SEARCH_API_KEY": "library-secret",
                "MP_API_KEY": "",
            },
            clear=False,
        ), self.assertLogs("platform_sources.registry", level="WARNING") as logs:
            tools = build_platform_source_tools(self._context(Path(tmp)))
        names = {tool.name for tool in tools}
        self.assertEqual(
            names,
            {
                "materials_library_list",
                "materials_library_search",
                "materials_library_fetch",
            },
        )
        output = "\n".join(logs.output)
        self.assertIn("paper_server", output)
        self.assertIn("ValueError", output)
        self.assertNotIn("paper-secret", output)

    def test_registered_tool_names_are_source_specific(self):
        with tempfile.TemporaryDirectory() as tmp, patch.dict(
            os.environ,
            {
                "PAPER_SERVER_API_KEY": "paper-secret",
                "DOCUMENT_SEARCH_API_KEY": "library-secret",
                "MP_API_KEY": "mp-secret",
            },
            clear=False,
        ), patch("platform_sources.registry.MPRester", object()):
            tools = build_platform_source_tools(self._context(Path(tmp)))
        names = {tool.schema["function"]["name"] for tool in tools}
        self.assertEqual(
            names,
            {
                "paper_server_search",
                "paper_server_get",
                "paper_server_fetch",
                "materials_library_list",
                "materials_library_search",
                "materials_library_fetch",
                "materials_project_search",
                "materials_project_get_structure",
                "materials_project_get_entries",
            },
        )
        self.assertFalse(
            names
            & {
                "paper_search",
                "paper_get",
                "paper_fetch",
                "document_list_kb",
                "document_search",
                "document_download",
                "mp_search_summary",
                "mp_get_structure",
                "mp_get_entries",
                "platform_source_call",
            }
        )

    def test_platform_credentials_do_not_enter_execution_environments(self):
        secrets = {
            "PAPER_SERVER_API_KEY": "paper-secret",
            "DOCUMENT_SEARCH_API_KEY": "library-secret",
            "MP_API_KEY": "mp-secret",
        }
        with patch.dict(os.environ, secrets, clear=False):
            host_env = RunPythonTool()._filtered_env()
            docker_env = _sandbox_env()
        for name in secrets:
            self.assertNotIn(name, host_env)
            self.assertNotIn(name, docker_env)

    def test_platform_credentials_are_redacted_from_tool_results(self):
        secrets = {
            "PAPER_SERVER_API_KEY": "paper-secret",
            "DOCUMENT_SEARCH_API_KEY": "library-secret",
            "MP_API_KEY": "mp-secret",
        }
        with patch.dict(os.environ, secrets, clear=False), patch(
            "platform_sources.paper_server._config",
            side_effect=RuntimeError("paper-secret"),
        ), patch(
            "platform_sources.materials_library.client.search",
            side_effect=RuntimeError("api_key=library-secret"),
        ), patch(
            "platform_sources.materials_project._mpr",
            side_effect=RuntimeError("mp-secret"),
        ):
            results = (
                PaperServerSearchTool().execute(keyword="cement"),
                MaterialsLibrarySearchTool().execute(queries=["cement"]),
                MaterialsProjectSearchTool().execute(formula="Ca3SiO5"),
            )
        joined = "\n".join(results)
        for value in secrets.values():
            self.assertNotIn(value, joined)
        self.assertIn("[REDACTED]", joined)


if __name__ == "__main__":
    unittest.main()