from __future__ import annotations

import shutil
from pathlib import Path

from nexus_claude_api.cli import main
from nexus_claude_api.config import Settings, load_local_config
from nexus_claude_api.shell import generate_claude_code_powershell


def test_claude_code_command() -> None:
    settings = Settings.from_values(
        host="127.0.0.1",
        port=4141,
        api_key="test",
        require_api_key=False,
    )

    command = generate_claude_code_powershell(settings)

    assert "ANTHROPIC_BASE_URL" in command
    assert "ANTHROPIC_AUTH_TOKEN='dummy'" in command
    assert "CLAUDE_CODE_ENABLE_GATEWAY_MODEL_DISCOVERY='1'" in command
    assert "claude-opus-4.6" in command
    assert command.endswith("claude --model claude-opus-4.6")


def test_claude_code_command_uses_custom_model() -> None:
    settings = Settings.from_values(
        host="127.0.0.1",
        port=4141,
        api_key="test",
        model="claude-opus-4.6",
        require_api_key=False,
    )

    command = generate_claude_code_powershell(settings)

    assert command.endswith("claude --model claude-opus-4.6")


def test_missing_api_key_fails(monkeypatch) -> None:
    tmp_path = _workspace_tmp("missing-key")
    monkeypatch.delenv("NEXUS_API_KEY", raising=False)
    monkeypatch.delenv("AWS_BEARER_TOKEN_BEDROCK", raising=False)
    monkeypatch.chdir(tmp_path)

    try:
        exit_code = main(["start", "--dry-run"])
    finally:
        monkeypatch.chdir(Path(__file__).parents[1])
        shutil.rmtree(tmp_path, ignore_errors=True)

    assert exit_code == 2


def test_local_config_api_key(monkeypatch) -> None:
    tmp_path = _workspace_tmp("local-config")
    monkeypatch.chdir(tmp_path)
    (tmp_path / "nexus-claude-api.local.json").write_text(
        '{"api_key": "local-test-key"}',
        encoding="utf-8",
    )

    try:
        settings = Settings.from_values(require_api_key=False)

        assert settings.api_key == "local-test-key"
        assert load_local_config()["api_key"] == "local-test-key"
    finally:
        monkeypatch.chdir(Path(__file__).parents[1])
        shutil.rmtree(tmp_path, ignore_errors=True)


def _workspace_tmp(name: str) -> Path:
    path = Path(__file__).parents[1] / ".test-tmp" / name
    shutil.rmtree(path, ignore_errors=True)
    path.mkdir(parents=True, exist_ok=True)
    return path