"""
Tests for issue #170: new profile form with optional custom endpoint fields.

Tests cover:
  1. _write_endpoint_to_config writes base_url into config.yaml
  2. _write_endpoint_to_config writes api_key into config.yaml
  3. _write_endpoint_to_config writes both together
  4. _write_endpoint_to_config merges with existing config (does not clobber)
  5. _write_endpoint_to_config is a no-op when both args are None/empty
  6. API route accepts base_url and api_key in POST body
  7. Profile created via API has base_url in config.yaml
"""
import json
import pathlib
import shutil
import os
import pytest

yaml = pytest.importorskip("yaml", reason="PyYAML required for config write tests")


# ── 1-5: _write_endpoint_to_config unit tests ─────────────────────────────────

class TestWriteEndpointToConfig:
    def test_writes_base_url(self, tmp_path):
        from api.profiles import _write_endpoint_to_config
        _write_endpoint_to_config(tmp_path, base_url="http://localhost:11434")
        cfg = yaml.safe_load((tmp_path / "config.yaml").read_text())
        assert cfg["model"]["base_url"] == "http://localhost:11434"

    def test_writes_api_key(self, tmp_path):
        """api_key-only calls are now a no-op — keys belong in .env, not config.yaml."""
        from api.profiles import _write_endpoint_to_config
        _write_endpoint_to_config(tmp_path, api_key="***")
        assert not (tmp_path / "config.yaml").exists()

    def test_writes_both(self, tmp_path):
        from api.profiles import _write_endpoint_to_config
        _write_endpoint_to_config(tmp_path, base_url="http://localhost:8080", api_key="mykey")
        cfg = yaml.safe_load((tmp_path / "config.yaml").read_text())
        assert cfg["model"]["base_url"] == "http://localhost:8080"
        assert "api_key" not in cfg["model"]

    def test_merges_with_existing_config(self, tmp_path):
        """Does not clobber other top-level config keys."""
        existing = {"model": {"default": "gpt-4o", "provider": "openai"}, "agent": {"max_turns": 90}}
        (tmp_path / "config.yaml").write_text(yaml.dump(existing))
        from api.profiles import _write_endpoint_to_config
        _write_endpoint_to_config(tmp_path, base_url="http://localhost:1234")
        cfg = yaml.safe_load((tmp_path / "config.yaml").read_text())
        # Existing keys preserved
        assert cfg["model"]["default"] == "gpt-4o"
        assert cfg["model"]["provider"] == "openai"
        assert cfg["agent"]["max_turns"] == 90
        # New key added
        assert cfg["model"]["base_url"] == "http://localhost:1234"

    def test_noop_when_both_none(self, tmp_path):
        from api.profiles import _write_endpoint_to_config
        _write_endpoint_to_config(tmp_path, base_url=None, api_key=None)
        assert not (tmp_path / "config.yaml").exists()

    def test_noop_when_both_empty_strings(self, tmp_path):
        from api.profiles import _write_endpoint_to_config
        _write_endpoint_to_config(tmp_path, base_url="", api_key="")
        assert not (tmp_path / "config.yaml").exists()


# ── 6-7: API integration tests ────────────────────────────────────────────────

from tests._pytest_port import BASE as _TEST_BASE


def _post(path, body=None):
    import urllib.request
    data = json.dumps(body or {}).encode()
    req = urllib.request.Request(
        _TEST_BASE + path, data=data, headers={"Content-Type": "application/json"}
    )
    try:
        with urllib.request.urlopen(req, timeout=10) as r:
            return json.loads(r.read()), None
    except urllib.error.HTTPError as e:
        try:
            return json.loads(e.read()), e.code
        except Exception:
            return {}, e.code


@pytest.mark.xfail(reason="Pre-existing isolation issue: test_server fixture conflict (#sprint31)")
class TestProfileCreateAPIWithEndpoint:
    _PROFILE_NAME = "test-ep-sprint31"

    def _cleanup(self):
        """Remove the test profile from wherever hermes_cli placed it."""
        home_hermes = pathlib.Path.home() / ".hermes"
        # Walk all profile roots: real ~/.hermes, and any subdirs that might be HERMES_HOME
        roots_to_check = set()
        roots_to_check.add(home_hermes)
        for root, dirs, _ in os.walk(str(home_hermes)):
            if "profiles" in dirs:
                roots_to_check.add(pathlib.Path(root))
            if root.count(os.sep) - str(home_hermes).count(os.sep) > 4:
                break  # don't recurse too deep
        for search_root in roots_to_check:
            candidate = search_root / "profiles" / self._PROFILE_NAME
            if candidate.exists():
                shutil.rmtree(candidate)

    def setup_method(self, _):
        self._cleanup()

    def teardown_method(self, _):
        self._cleanup()

    def test_api_route_accepts_base_url(self, test_server):
        """POST /api/profile/create with base_url returns ok:True."""
        data, err = _post("/api/profile/create", {
            "name": self._PROFILE_NAME,
            "base_url": "http://localhost:11434",
        })
        assert err is None, f"Expected 200, got {err}: {data}"
        assert data.get("ok") is True

    def test_api_route_writes_base_url_to_config(self, test_server):
        """Route accepts base_url and returns profile metadata.

        The actual config.yaml write is covered by the unit tests above.
        """
        data, err = _post("/api/profile/create", {
            "name": self._PROFILE_NAME,
            "base_url": "http://localhost:9999",
        })
        assert err is None, f"Expected 200, got {err}: {data}"
        assert data.get("ok") is True
        assert data.get("profile", {}).get("path"), f"API response missing profile.path: {data}"

    def test_api_route_rejects_invalid_base_url(self, test_server):
        """POST /api/profile/create with a non-http base_url returns 400."""
        data, err = _post("/api/profile/create", {
            "name": self._PROFILE_NAME,
            "base_url": "ftp://localhost:11434",
        })
        assert err == 400, f"Expected 400, got {err}: {data}"
