import unittest

from app.agents.browser_decision import _fallback_browser_decision
from app.agents.browser_tools import (
    _normalize_points,
    execute_browser_tool_call,
    parse_browser_json_response,
)
from app.agents.graph.state import AgentState
from app.agents.llm_client import _parse_openrouter_responses_api
from app.agents.tooling import ToolCall, tool


@tool(description="Add two numbers together")
def add_numbers(left: int, right: int, note: str = "") -> dict:
    return {"sum": left + right, "note": note}


class ToolingTests(unittest.TestCase):
    def test_tool_schema_marks_required_and_optional_fields(self):
        schema = add_numbers.schema
        self.assertEqual(schema.name, "add_numbers")
        self.assertEqual(schema.parameters["required"], ["left", "right"])
        self.assertEqual(schema.parameters["properties"]["note"]["type"], "string")
        self.assertEqual(schema.parameters["properties"]["left"]["type"], "integer")

    def test_execute_browser_tool_call_normalizes_search_decision(self):
        result = execute_browser_tool_call(
            ToolCall(
                id="call_search",
                name="search_web",
                arguments={
                    "query": "latest groq models",
                    "reason": "current page lacks the answer",
                    "known_facts": ["Groq exposes an OpenAI-compatible API"],
                },
            )
        )

        self.assertEqual(result["action"], "SEARCH")
        self.assertEqual(result["value"], "latest groq models")
        self.assertEqual(result["reason"], "current page lacks the answer")
        self.assertEqual(result["known_facts"], ["Groq exposes an OpenAI-compatible API"])

    def test_parse_browser_json_response_maps_legacy_fields(self):
        parsed = parse_browser_json_response(
            """
            {
              "action": "navigate",
              "url": "https://example.com/page",
              "reason": "This looks like the source page",
              "missing_points": ["exact launch date"]
            }
            """
        )

        self.assertEqual(parsed["action"], "NAVIGATE")
        self.assertEqual(parsed["value"], "https://example.com/page")
        self.assertEqual(parsed["reason"], "This looks like the source page")
        self.assertEqual(parsed["missing_points"], ["exact launch date"])

    def test_parse_browser_json_response_rejects_scroll_when_mode_disallows_it(self):
        with self.assertRaises(ValueError) as ctx:
            parse_browser_json_response('{"action":"scroll"}', allow_scroll=False)

        self.assertIn("SCROLL", str(ctx.exception))

    def test_normalize_points_treats_plain_string_as_single_item(self):
        self.assertEqual(
            _normalize_points("trump age still missing"),
            ["trump age still missing"],
        )

    def test_agent_state_update_research_progress_does_not_split_string_into_chars(self):
        state = AgentState(task="qual idade do trump?")
        state.update_research_progress(missing_points="trump age still missing")

        self.assertEqual(state.missing_points, ["trump age still missing"])

    def test_fallback_browser_decision_does_not_leak_reasoning_as_done(self):
        decision = _fallback_browser_decision(
            task="qual idade do trump?",
            current_url="https://en.wikipedia.org/wiki/Donald_Trump",
            blocked=False,
            allow_scroll=True,
            links=[],
            raw_text="We are on the Wikipedia page and should think step by step...",
        )

        self.assertNotEqual(decision["action"], "DONE")
        self.assertEqual(decision["action"], "SCROLL")

    def test_fallback_browser_decision_uses_unseen_link_when_available(self):
        decision = _fallback_browser_decision(
            task="qual idade do trump?",
            current_url="https://html.duckduckgo.com/html/?q=qual+idade+do+trump",
            blocked=False,
            allow_scroll=False,
            links=["https://en.wikipedia.org/wiki/Donald_Trump"],
            raw_text="Let us think carefully first...",
        )

        self.assertEqual(decision["action"], "NAVIGATE")
        self.assertEqual(decision["value"], "https://en.wikipedia.org/wiki/Donald_Trump")

    def test_parse_openrouter_responses_api_separates_reasoning_from_content_and_tools(self):
        parsed = _parse_openrouter_responses_api(
            {
                "model": "nvidia/nemotron-3-super-120b-a12b:free",
                "status": "completed",
                "output": [
                    {
                        "type": "reasoning",
                        "summary": [
                            "Need the current age",
                            "Should inspect the canonical page first",
                        ],
                    },
                    {
                        "type": "function_call",
                        "id": "fc_1",
                        "call_id": "call_1",
                        "name": "navigate_to_url",
                        "arguments": "{\"url\":\"https://en.wikipedia.org/wiki/Donald_Trump\"}",
                    },
                    {
                        "type": "message",
                        "role": "assistant",
                        "content": [
                            {
                                "type": "output_text",
                                "text": "Vou abrir a página principal.",
                            }
                        ],
                    },
                ],
            }
        )

        self.assertEqual(parsed.reasoning, [
            "Need the current age",
            "Should inspect the canonical page first",
        ])
        self.assertEqual(parsed.content, "Vou abrir a página principal.")
        self.assertEqual(len(parsed.tool_calls), 1)
        self.assertEqual(parsed.tool_calls[0].name, "navigate_to_url")
        self.assertEqual(
            parsed.tool_calls[0].arguments,
            {"url": "https://en.wikipedia.org/wiki/Donald_Trump"},
        )


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