"""Tests for HermesCLI initialization -- catches configuration bugs
that only manifest at runtime (not in mocked unit tests)."""

import os
import sys
from unittest.mock import patch, MagicMock

import pytest

sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))


def _make_cli(env_overrides=None, **kwargs):
    """Create a HermesCLI instance with minimal mocking."""
    import cli as _cli_mod
    from cli import HermesCLI
    _clean_config = {
        "model": {
            "default": "anthropic/claude-opus-4.6",
            "base_url": "https://openrouter.ai/api/v1",
            "provider": "auto",
        },
        "display": {"compact": False, "tool_progress": "all"},
        "agent": {},
        "terminal": {"env_type": "local"},
    }
    clean_env = {"LLM_MODEL": "", "HERMES_MAX_ITERATIONS": ""}
    if env_overrides:
        clean_env.update(env_overrides)
    with patch("cli.get_tool_definitions", return_value=[]), \
         patch.dict("os.environ", clean_env, clear=False), \
         patch.dict(_cli_mod.__dict__, {"CLI_CONFIG": _clean_config}):
        return HermesCLI(**kwargs)


class TestMaxTurnsResolution:
    """max_turns must always resolve to a positive integer, never None."""

    def test_default_max_turns_is_integer(self):
        cli = _make_cli()
        assert isinstance(cli.max_turns, int)
        assert cli.max_turns == 90

    def test_explicit_max_turns_honored(self):
        cli = _make_cli(max_turns=25)
        assert cli.max_turns == 25

    def test_none_max_turns_gets_default(self):
        cli = _make_cli(max_turns=None)
        assert isinstance(cli.max_turns, int)
        assert cli.max_turns == 90

    def test_env_var_max_turns(self):
        """Env var is used when config file doesn't set max_turns."""
        cli_obj = _make_cli(env_overrides={"HERMES_MAX_ITERATIONS": "42"})
        assert cli_obj.max_turns == 42

    def test_max_turns_never_none_for_agent(self):
        """The value passed to AIAgent must never be None (causes TypeError in run_conversation)."""
        cli = _make_cli()
        assert isinstance(cli.max_turns, int) and cli.max_turns == 90


class TestVerboseAndToolProgress:
    def test_default_verbose_is_bool(self):
        cli = _make_cli()
        assert isinstance(cli.verbose, bool)

    def test_tool_progress_mode_is_string(self):
        cli = _make_cli()
        assert isinstance(cli.tool_progress_mode, str)
        assert cli.tool_progress_mode in ("off", "new", "all", "verbose")


class TestProviderResolution:
    def test_api_key_is_string_or_none(self):
        cli = _make_cli()
        assert cli.api_key is None or isinstance(cli.api_key, str)

    def test_base_url_is_string(self):
        cli = _make_cli()
        assert isinstance(cli.base_url, str)
        assert cli.base_url.startswith("http")

    def test_model_is_string(self):
        cli = _make_cli()
        assert isinstance(cli.model, str)
        assert isinstance(cli.model, str) and '/' in cli.model