"""Citation markdown renderer — no Chroma, no mcp."""
from __future__ import annotations

import unittest

from docs_mcp.format import format_search_hits


class FormatSearchHitsTests(unittest.TestCase):
    def test_two_hits_numbered_with_urls(self) -> None:
        out = format_search_hits([
            ("Install on Linux", "https://docs.example.com/install", "chunk one", ""),
            ("HA setup", "https://docs.example.com/ha", "chunk two", ""),
        ])
        self.assertIn("[1] **Install on Linux** — https://docs.example.com/install", out)
        self.assertIn("[2] **HA setup** — https://docs.example.com/ha", out)
        self.assertIn("chunk one", out)
        self.assertIn("chunk two", out)
        self.assertNotIn("[3]", out)
        # [1] before [2]
        self.assertLess(out.index("[1]"), out.index("[2]"))
        # each number is followed by its URL on the same logical hit
        first = out.split("[2]")[0]
        self.assertIn("https://docs.example.com/install", first)
        self.assertNotIn("https://docs.example.com/ha", first)

    def test_empty_hits_invents_nothing(self) -> None:
        self.assertEqual(format_search_hits([]), "")

    def test_missing_url_omits_emdash(self) -> None:
        out = format_search_hits([("Title only", "", "body", "")])
        self.assertIn("[1] **Title only**", out)
        self.assertNotIn("—", out)


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