import json
import unittest
from unittest.mock import patch

from semantic_index.client import SemanticIndexClient
from semantic_index.models import SearchResult


class FakeSearchService:
    def __init__(self):
        self.queries = []

    def search(self, query):
        self.queries.append(query)
        return [
            SearchResult(
                id="redmine:issue:1:chunk:0",
                score=0.7,
                text="Candidate follow up",
                payload={
                    "source": "redmine",
                    "project_identifier": "hiring",
                    "doc_type": "issue",
                    "issue_id": 1,
                    "redmine_url": "http://redmine/issues/1",
                    "source_record_id": "issue:1",
                },
            )
        ]

    def get_document(self, document_id):
        return {"id": document_id, "text": "Full text", "payload": {"project_identifier": "hiring"}}


class SemanticIndexClientTest(unittest.TestCase):
    def test_in_process_client_returns_normalized_search_response(self):
        search = FakeSearchService()
        client = SemanticIndexClient(search_service=search)

        response = client.search("candidate follow up", project_identifier="hiring", limit=3)

        self.assertEqual("candidate follow up", response["query"])
        self.assertEqual({"project_identifier": "hiring", "limit": 3}, response["filters"])
        self.assertEqual("redmine:issue:1:chunk:0", response["results"][0]["id"])
        self.assertEqual("hiring", response["results"][0]["citation"]["project_identifier"])
        self.assertEqual("hiring", search.queries[0].project_identifier)

    def test_in_process_client_get_document(self):
        client = SemanticIndexClient(search_service=FakeSearchService())

        document = client.get_document("redmine:issue:1:chunk:0")

        self.assertEqual("Full text", document["text"])

    def test_http_client_sends_auth_header_and_parses_search_response(self):
        body = json.dumps({"query": "printer", "filters": {}, "results": []}).encode()

        class FakeResponse:
            def __enter__(self):
                return self

            def __exit__(self, exc_type, exc, tb):
                return False

            def read(self):
                return body

        captured = {}

        def fake_urlopen(request, timeout):
            captured["url"] = request.full_url
            captured["authorization"] = request.headers.get("Authorization")
            captured["body"] = json.loads(request.data.decode())
            return FakeResponse()

        with patch("urllib.request.urlopen", fake_urlopen):
            client = SemanticIndexClient(base_url="http://semantic.local", api_key="secret")
            response = client.search("printer", project_identifier="customer-service")

        self.assertEqual("http://semantic.local/search", captured["url"])
        self.assertEqual("Bearer secret", captured["authorization"])
        self.assertEqual("customer-service", captured["body"]["project_identifier"])
        self.assertEqual("printer", response["query"])


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