"""Tests for installed CLI entrypoints, commands, and launchers."""

import json
import subprocess
import sys
import tomllib
from collections.abc import Callable
from pathlib import Path
from types import SimpleNamespace
from unittest.mock import MagicMock, patch
from urllib.error import URLError
from urllib.request import Request

import pytest

from free_claude_code.config.settings import Settings


def _launcher_settings(
    *,
    port: int = 8082,
    token: str = "freecc",
    open_admin_browser: bool = True,
) -> Settings:
    return Settings.model_construct(
        host="0.0.0.0",
        port=port,
        anthropic_auth_token=token,
        model="nvidia_nim/test-model",
        open_admin_browser=open_admin_browser,
    )


def _run_init(tmp_home: Path) -> tuple[str, Path]:
    """Run init() with home directory redirected to tmp_home. Returns (printed output, env_file path)."""
    from free_claude_code.cli.commands import init

    env_file = tmp_home / ".fcc" / ".env"
    printed: list[str] = []

    with (
        patch("pathlib.Path.home", return_value=tmp_home),
        patch(
            "builtins.print",
            side_effect=lambda *a: printed.append(" ".join(str(x) for x in a)),
        ),
    ):
        init()

    return "\n".join(printed), env_file


class _JsonResponse:
    def __init__(self, payload: dict[str, object]) -> None:
        self._payload = payload

    def __enter__(self) -> _JsonResponse:
        return self

    def __exit__(self, *_args: object) -> None:
        return None

    def read(self) -> bytes:
        return json.dumps(self._payload).encode("utf-8")


def test_init_creates_env_file(tmp_path: Path) -> None:
    """init() creates .env from the bundled template when it doesn't exist yet."""
    output, env_file = _run_init(tmp_path)

    assert env_file.exists()
    assert env_file.stat().st_size > 0
    assert str(env_file) in output


def test_init_copies_template_content(tmp_path: Path) -> None:
    """init() writes the canonical root env.example content, not an empty file."""
    template = (Path(__file__).resolve().parents[2] / ".env.example").read_text(
        encoding="utf-8"
    )
    _, env_file = _run_init(tmp_path)

    assert env_file.read_text("utf-8") == template


def test_init_migrates_home_checkout_env_before_template(tmp_path: Path) -> None:
    """init() preserves users who kept config in ~/free-claude-code/.env."""
    legacy_env = tmp_path / "free-claude-code" / ".env"
    legacy_env.parent.mkdir(parents=True)
    legacy_env.write_text("MODEL=deepseek/deepseek-chat\n", encoding="utf-8")

    output, env_file = _run_init(tmp_path)

    assert env_file.read_text("utf-8") == "MODEL=deepseek/deepseek-chat\n"
    assert f"Config migrated from {legacy_env}" in output


def test_init_migrates_legacy_xdg_env_before_template(tmp_path: Path) -> None:
    """init() preserves users who kept config in ~/.config/free-claude-code/.env."""
    legacy_env = tmp_path / ".config" / "free-claude-code" / ".env"
    legacy_env.parent.mkdir(parents=True)
    legacy_env.write_text("MODEL=open_router/free-model\n", encoding="utf-8")

    output, env_file = _run_init(tmp_path)

    assert env_file.read_text("utf-8") == "MODEL=open_router/free-model\n"
    assert f"Config migrated from {legacy_env}" in output


def test_legacy_env_migration_does_not_overwrite_managed_env(
    tmp_path: Path,
) -> None:
    """Legacy migration never overwrites an existing ~/.fcc/.env."""
    from free_claude_code.cli.commands import _migrate_legacy_env_if_missing

    managed_env = tmp_path / ".fcc" / ".env"
    managed_env.parent.mkdir(parents=True)
    managed_env.write_text("MODEL=nvidia_nim/current\n", encoding="utf-8")
    legacy_env = tmp_path / "free-claude-code" / ".env"
    legacy_env.parent.mkdir(parents=True)
    legacy_env.write_text("MODEL=deepseek/legacy\n", encoding="utf-8")

    with patch("pathlib.Path.home", return_value=tmp_path):
        migrated_from = _migrate_legacy_env_if_missing()

    assert migrated_from is None
    assert managed_env.read_text("utf-8") == "MODEL=nvidia_nim/current\n"


def test_env_template_loader_uses_root_template_in_source_checkout() -> None:
    """Source checkout fallback uses the root .env.example as the single source."""
    from free_claude_code.config.env_template import load_env_template

    template = (Path(__file__).resolve().parents[2] / ".env.example").read_text(
        encoding="utf-8"
    )

    assert load_env_template() == template


def test_init_creates_parent_directories(tmp_path: Path) -> None:
    """init() creates ~/.fcc/ even if it doesn't exist."""
    config_dir = tmp_path / ".fcc"
    assert not config_dir.exists()

    _run_init(tmp_path)

    assert config_dir.is_dir()


def test_init_skips_if_env_already_exists(tmp_path: Path) -> None:
    """init() does not overwrite an existing .env and prints a warning."""
    # Create it first
    _run_init(tmp_path)

    env_file = tmp_path / ".fcc" / ".env"
    env_file.write_text("existing content", encoding="utf-8")

    output, _ = _run_init(tmp_path)

    assert env_file.read_text("utf-8") == "existing content"
    assert "already exists" in output


def test_init_prints_next_step_hint(tmp_path: Path) -> None:
    """init() tells the user to run fcc-server after editing .env."""
    output, _ = _run_init(tmp_path)

    assert "fcc-server" in output


def test_cli_scripts_are_registered() -> None:
    pyproject = tomllib.loads(
        (Path(__file__).resolve().parents[2] / "pyproject.toml").read_text(
            encoding="utf-8"
        )
    )

    scripts = pyproject["project"]["scripts"]
    assert scripts["fcc-server"] == "free_claude_code.cli.entrypoints:serve"
    assert scripts["free-claude-code"] == "free_claude_code.cli.entrypoints:serve"
    assert scripts["fcc-claude"] == "free_claude_code.cli.launchers.claude:launch"
    assert scripts["fcc-codex"] == "free_claude_code.cli.launchers.codex:launch"
    assert scripts["fcc-pi"] == "free_claude_code.cli.launchers.pi:launch"


@pytest.mark.parametrize("entrypoint_name", ["serve", "init"])
@pytest.mark.parametrize(
    "argv",
    [("--version",), ("--version", "--help"), ("--help", "--version")],
)
def test_fcc_owned_entrypoints_report_version_without_side_effects(
    entrypoint_name: str,
    argv: tuple[str, ...],
    capsys: pytest.CaptureFixture[str],
) -> None:
    from free_claude_code.cli import entrypoints

    with patch.object(entrypoints, "package_version", return_value="9.8.7"):
        getattr(entrypoints, entrypoint_name)(argv)

    assert capsys.readouterr() == ("free-claude-code 9.8.7\n", "")


@pytest.mark.parametrize("entrypoint_name", ["serve", "init"])
def test_version_entrypoints_do_not_import_command_runtime(
    entrypoint_name: str,
) -> None:
    script = "\n".join(
        (
            "import json",
            "import sys",
            f"from free_claude_code.cli.entrypoints import {entrypoint_name}",
            f"{entrypoint_name}(['--version'])",
            "forbidden = ('uvicorn', 'fastapi', 'openai', "
            "'free_claude_code.cli.commands', "
            "'free_claude_code.runtime.bootstrap')",
            "print(json.dumps([name for name in forbidden if name in sys.modules]))",
        )
    )

    completed = subprocess.run(
        [sys.executable, "-c", script],
        capture_output=True,
        check=False,
        text=True,
    )

    assert completed.returncode == 0, completed.stderr
    assert json.loads(completed.stdout.splitlines()[-1]) == []


@pytest.mark.parametrize("entrypoint_name", ["serve", "init"])
def test_non_version_entrypoints_delegate_to_command_implementation(
    entrypoint_name: str,
) -> None:
    from free_claude_code.cli import commands, entrypoints

    with patch.object(commands, entrypoint_name) as command:
        getattr(entrypoints, entrypoint_name)(())

    command.assert_called_once_with()


def test_schedule_open_admin_browser_opens_when_health_ready() -> None:
    """Opening /admin runs after /health preflight succeeds."""
    from free_claude_code.cli import commands
    from free_claude_code.config.server_urls import local_admin_url

    settings = _launcher_settings(port=31337)
    opened_urls: list[str] = []

    class ImmediateThread:
        def __init__(self, target=None, **_kwargs: object) -> None:
            self._target = target

        def start(self) -> None:
            assert self._target is not None
            self._target()

    with (
        patch.object(commands.threading, "Thread", ImmediateThread),
        patch.object(commands, "preflight_proxy", return_value=None),
        patch.object(
            commands.webbrowser,
            "open",
            side_effect=lambda url: opened_urls.append(url),
        ),
        patch.object(commands.time, "sleep"),
    ):
        commands._schedule_open_admin_browser(settings)

    assert opened_urls == [local_admin_url(settings)]


def test_serve_skips_admin_browser_when_setting_is_disabled() -> None:
    from free_claude_code.cli import commands

    settings = _launcher_settings(open_admin_browser=False)
    get_settings = MagicMock(return_value=settings)
    get_settings.cache_clear = MagicMock()

    with (
        patch.object(commands, "get_settings", get_settings),
        patch.object(
            commands, "_run_supervised_server", return_value=False
        ) as run_server,
        patch.object(commands, "kill_all_best_effort"),
    ):
        commands.serve()

    run_server.assert_called_once_with(settings, open_admin_browser=False)


def test_serve_supervisor_restarts_when_app_requests_restart() -> None:
    from free_claude_code.cli import commands

    settings = _launcher_settings()
    get_settings = MagicMock(side_effect=[settings, settings])
    get_settings.cache_clear = MagicMock()
    servers: list[object] = []
    restart_callbacks: list[Callable[[], None]] = []

    apps: list[SimpleNamespace] = []

    def build_asgi_app(_settings: Settings, restart_callback: Callable[[], None]):
        restart_callbacks.append(restart_callback)
        app = SimpleNamespace(runtime=SimpleNamespace(is_closed=False))
        apps.append(app)
        return app

    class FakeServer:
        def __init__(self, config):
            self.config = config
            self.should_exit = False
            servers.append(self)

        def run(self):
            if len(servers) == 1:
                restart_callbacks[-1]()
                assert self.should_exit is True
                self.config.app.runtime.is_closed = True

    def fake_config(app, **kwargs):
        return SimpleNamespace(app=app, kwargs=kwargs)

    with (
        patch.object(commands, "get_settings", get_settings),
        patch.object(commands.uvicorn, "Config", side_effect=fake_config),
        patch.object(commands.uvicorn, "Server", side_effect=FakeServer),
        patch.object(commands, "build_asgi_app", side_effect=build_asgi_app),
        patch.object(commands, "_schedule_open_admin_browser") as schedule_open_admin,
        patch.object(commands, "kill_all_best_effort") as kill_all,
    ):
        commands.serve()

    assert len(servers) == 2
    schedule_open_admin.assert_called_once_with(settings)
    get_settings.cache_clear.assert_called_once()
    kill_all.assert_called_once()


def test_serve_supervisor_refuses_restart_after_incomplete_shutdown() -> None:
    from free_claude_code.cli import commands

    settings = _launcher_settings()
    get_settings = MagicMock(return_value=settings)
    get_settings.cache_clear = MagicMock()
    servers: list[object] = []
    restart_callbacks: list[Callable[[], None]] = []

    def build_asgi_app(_settings: Settings, restart_callback: Callable[[], None]):
        restart_callbacks.append(restart_callback)
        return SimpleNamespace(runtime=SimpleNamespace(is_closed=False))

    class FakeServer:
        def __init__(self, config):
            self.config = config
            self.should_exit = False
            servers.append(self)

        def run(self):
            restart_callbacks[-1]()
            assert self.should_exit is True

    def fake_config(app, **kwargs):
        return SimpleNamespace(app=app, kwargs=kwargs)

    with (
        patch.object(commands, "get_settings", get_settings),
        patch.object(commands.uvicorn, "Config", side_effect=fake_config),
        patch.object(commands.uvicorn, "Server", side_effect=FakeServer),
        patch.object(commands, "build_asgi_app", side_effect=build_asgi_app),
        patch.object(commands, "_schedule_open_admin_browser"),
        patch.object(commands, "kill_all_best_effort") as kill_all,
    ):
        commands.serve()

    assert len(servers) == 1
    get_settings.cache_clear.assert_not_called()
    kill_all.assert_called_once()


def test_serve_migrates_legacy_env_before_loading_settings(tmp_path: Path) -> None:
    from free_claude_code.cli import commands

    legacy_env = tmp_path / "free-claude-code" / ".env"
    legacy_env.parent.mkdir(parents=True)
    legacy_env.write_text("MODEL=deepseek/deepseek-chat\n", encoding="utf-8")
    settings = _launcher_settings()
    get_settings = MagicMock(return_value=settings)
    get_settings.cache_clear = MagicMock()

    with (
        patch("pathlib.Path.home", return_value=tmp_path),
        patch.object(commands, "get_settings", get_settings),
        patch.object(commands, "_run_supervised_server", return_value=False),
        patch.object(commands, "kill_all_best_effort"),
    ):
        commands.serve()

    assert (tmp_path / ".fcc" / ".env").read_text("utf-8") == (
        "MODEL=deepseek/deepseek-chat\n"
    )
    get_settings.assert_called_once_with()


def test_serve_migrates_hf_token_before_loading_settings(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: Path,
) -> None:
    from free_claude_code.cli import commands

    repo = tmp_path / "repo"
    repo.mkdir()
    (repo / ".env").write_text("HF_TOKEN=legacy-hf\n", encoding="utf-8")
    settings = _launcher_settings()
    get_settings = MagicMock(return_value=settings)
    get_settings.cache_clear = MagicMock()
    monkeypatch.chdir(repo)

    with (
        patch("pathlib.Path.home", return_value=tmp_path),
        patch.object(commands, "get_settings", get_settings),
        patch.object(commands, "_run_supervised_server", return_value=False),
        patch.object(commands, "kill_all_best_effort"),
        patch.object(commands, "explicit_env_file_migration_warning"),
    ):
        commands.serve()

    assert (repo / ".env").read_text(encoding="utf-8") == (
        "HUGGINGFACE_API_KEY=legacy-hf\n"
    )
    get_settings.assert_called_once_with()


def test_config_env_key_migration_warns_for_explicit_env_file(
    tmp_path: Path,
    capsys: pytest.CaptureFixture[str],
) -> None:
    from free_claude_code.cli import commands

    explicit = tmp_path / "custom.env"
    explicit.write_text("HF_TOKEN=legacy-hf\n", encoding="utf-8")

    with patch.dict(commands.os.environ, {"FCC_ENV_FILE": str(explicit)}):
        migrated = commands._migrate_config_env_keys()

    assert migrated == ()
    assert "HF_TOKEN" in capsys.readouterr().err
    assert explicit.read_text(encoding="utf-8") == "HF_TOKEN=legacy-hf\n"


def test_serve_handles_keyboard_interrupt_without_traceback() -> None:
    from free_claude_code.cli import commands

    settings = _launcher_settings()
    get_settings = MagicMock(return_value=settings)
    get_settings.cache_clear = MagicMock()

    with (
        patch.object(commands, "get_settings", get_settings),
        patch.object(
            commands,
            "_run_supervised_server",
            side_effect=KeyboardInterrupt,
        ),
        patch.object(commands, "kill_all_best_effort") as kill_all,
    ):
        commands.serve()

    get_settings.cache_clear.assert_not_called()
    kill_all.assert_called_once()


def test_claude_child_env_targets_current_proxy_config() -> None:
    from free_claude_code.cli.claude_env import build_claude_proxy_env

    env = build_claude_proxy_env(
        proxy_root_url="http://127.0.0.1:9090",
        auth_token=" proxy-token ",
        base_env={
            "PATH": "keep",
            "ANTHROPIC_API_URL": "https://api.anthropic.com/v1",
            "ANTHROPIC_BASE_URL": "https://api.anthropic.com",
            "ANTHROPIC_AUTH_TOKEN": "old-token",
            "ANTHROPIC_API_KEY": "official-key",
            "CLAUDE_CODE_ENABLE_GATEWAY_MODEL_DISCOVERY": "0",
            "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": "1",
            "DISABLE_AUTOUPDATER": "0",
            "DISABLE_FEEDBACK_COMMAND": "0",
            "DISABLE_ERROR_REPORTING": "0",
            "DISABLE_TELEMETRY": "0",
        },
    )

    assert env["PATH"] == "keep"
    assert env["ANTHROPIC_BASE_URL"] == "http://127.0.0.1:9090"
    assert env["ANTHROPIC_AUTH_TOKEN"] == "proxy-token"
    assert env["CLAUDE_CODE_ENABLE_GATEWAY_MODEL_DISCOVERY"] == "1"
    assert env["CLAUDE_CODE_AUTO_COMPACT_WINDOW"] == "190000"
    assert env["DISABLE_AUTOUPDATER"] == "1"
    assert env["DISABLE_FEEDBACK_COMMAND"] == "1"
    assert env["DISABLE_ERROR_REPORTING"] == "1"
    assert env["DISABLE_TELEMETRY"] == "1"
    assert "ANTHROPIC_API_URL" not in env
    assert "ANTHROPIC_API_KEY" not in env
    assert "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC" not in env


def test_claude_child_env_uses_sentinel_for_blank_configured_auth_token() -> None:
    from free_claude_code.cli.claude_env import build_claude_proxy_env

    env = build_claude_proxy_env(
        proxy_root_url="http://127.0.0.1:8082",
        auth_token="",
        base_env={
            "ANTHROPIC_AUTH_TOKEN": "inherited-token",
            "ANTHROPIC_API_KEY": "official-key",
        },
    )

    assert env["ANTHROPIC_AUTH_TOKEN"] == "fcc-no-auth"
    assert "ANTHROPIC_API_KEY" not in env


def test_launch_claude_passes_args_and_child_env(
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    from free_claude_code.cli.launchers.claude import launch

    monkeypatch.setenv("ANTHROPIC_BASE_URL", "https://api.anthropic.com")
    monkeypatch.setenv("ANTHROPIC_AUTH_TOKEN", "old-token")
    monkeypatch.setenv("KEEP_ME", "yes")
    settings = _launcher_settings(port=9191, token="proxy-token")

    with (
        patch(
            "free_claude_code.cli.launchers.claude.get_settings", return_value=settings
        ),
        patch(
            "free_claude_code.cli.launchers.claude.preflight_proxy", return_value=None
        ),
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="resolved-claude.cmd",
        ),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        patch("free_claude_code.cli.launchers.common.register_pid") as register_pid,
        patch("free_claude_code.cli.launchers.common.unregister_pid") as unregister_pid,
        pytest.raises(SystemExit) as exc_info,
    ):
        process = popen.return_value
        process.pid = 12345
        process.wait.return_value = 7
        launch(["--model", "sonnet"])

    assert exc_info.value.code == 7
    popen.assert_called_once()
    assert popen.call_args.args[0] == ["resolved-claude.cmd", "--model", "sonnet"]
    child_env = popen.call_args.kwargs["env"]
    assert child_env["ANTHROPIC_BASE_URL"] == "http://127.0.0.1:9191"
    assert child_env["ANTHROPIC_AUTH_TOKEN"] == "proxy-token"
    assert child_env["CLAUDE_CODE_ENABLE_GATEWAY_MODEL_DISCOVERY"] == "1"
    assert child_env["CLAUDE_CODE_AUTO_COMPACT_WINDOW"] == "190000"
    assert child_env["DISABLE_AUTOUPDATER"] == "1"
    assert child_env["DISABLE_FEEDBACK_COMMAND"] == "1"
    assert child_env["DISABLE_ERROR_REPORTING"] == "1"
    assert child_env["DISABLE_TELEMETRY"] == "1"
    assert "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC" not in child_env
    assert child_env["KEEP_ME"] == "yes"
    register_pid.assert_called_once_with(12345)
    unregister_pid.assert_called_once_with(12345)


def test_launch_codex_passes_responses_config_and_child_env(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: Path,
) -> None:
    from free_claude_code.cli.launchers.codex import launch

    monkeypatch.setenv("OPENAI_API_KEY", "official-key")
    monkeypatch.setenv("OPENAI_BASE_URL", "https://api.openai.com/v1")
    monkeypatch.setenv("CODEX_HOME", "keep-home")
    monkeypatch.setenv("CODEX_INTERNAL_ORIGINATOR_OVERRIDE", "Codex Desktop")
    monkeypatch.setenv("CODEX_PERMISSION_PROFILE", "danger-full-access")
    monkeypatch.setenv("CODEX_SHELL", "1")
    monkeypatch.setenv("CODEX_THREAD_ID", "parent-thread")
    settings = _launcher_settings(port=9191, token="proxy-token")
    catalog_path = tmp_path / "codex-model-catalog.json"
    requests: list[Request] = []

    def fake_urlopen(request: Request, *, timeout: float) -> _JsonResponse:
        requests.append(request)
        assert timeout == 1.5
        return _JsonResponse(
            {
                "data": [
                    {
                        "id": "anthropic/nvidia_nim/provider-model",
                        "display_name": "NVIDIA model",
                    },
                    {
                        "id": ("claude-3-freecc-no-thinking/nvidia_nim/provider-model"),
                        "display_name": "NVIDIA model (no thinking)",
                    },
                    {
                        "id": "claude-opus-4-20250514",
                        "display_name": "Claude Opus 4",
                    },
                ]
            }
        )

    with (
        patch(
            "free_claude_code.cli.launchers.codex.get_settings", return_value=settings
        ),
        patch(
            "free_claude_code.cli.launchers.codex.preflight_proxy", return_value=None
        ),
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="resolved-codex.cmd",
        ),
        patch(
            "free_claude_code.cli.launchers.codex.codex_model_catalog_path",
            return_value=catalog_path,
        ),
        patch("free_claude_code.cli.launchers.codex.urlopen", side_effect=fake_urlopen),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        patch("free_claude_code.cli.launchers.common.register_pid") as register_pid,
        patch("free_claude_code.cli.launchers.common.unregister_pid") as unregister_pid,
        pytest.raises(SystemExit) as exc_info,
    ):
        process = popen.return_value
        process.pid = 12345
        process.wait.return_value = 0
        launch(["exec", "hello"])

    assert exc_info.value.code == 0
    command = popen.call_args.args[0]
    assert command[0] == "resolved-codex.cmd"
    assert 'model_provider="fcc"' in command
    assert 'model_providers.fcc.base_url="http://127.0.0.1:9191/v1"' in command
    assert 'model_providers.fcc.wire_api="responses"' in command
    assert f"model_catalog_json={json.dumps(str(catalog_path))}" in command
    assert command[-2:] == ["exec", "hello"]
    assert len(requests) == 1
    request = requests[0]
    assert request.full_url == "http://127.0.0.1:9191/v1/models"
    headers = {key.lower(): value for key, value in request.header_items()}
    assert headers["authorization"] == "Bearer proxy-token"
    assert "x-api-key" not in headers
    catalog = json.loads(catalog_path.read_text(encoding="utf-8"))
    assert [model["slug"] for model in catalog["models"]] == [
        "nvidia_nim/provider-model"
    ]
    child_env = popen.call_args.kwargs["env"]
    assert child_env["FCC_CODEX_API_KEY"] == "proxy-token"
    assert child_env["CODEX_HOME"] == "keep-home"
    assert "CODEX_INTERNAL_ORIGINATOR_OVERRIDE" not in child_env
    assert "CODEX_PERMISSION_PROFILE" not in child_env
    assert "CODEX_SHELL" not in child_env
    assert "CODEX_THREAD_ID" not in child_env
    assert "OPENAI_API_KEY" not in child_env
    assert "OPENAI_BASE_URL" not in child_env
    register_pid.assert_called_once_with(12345)
    unregister_pid.assert_called_once_with(12345)


def test_launch_codex_catalog_failure_warns_and_continues(
    capsys: pytest.CaptureFixture[str],
    tmp_path: Path,
) -> None:
    from free_claude_code.cli.launchers.codex import launch

    settings = _launcher_settings(port=9191, token="proxy-token")

    with (
        patch(
            "free_claude_code.cli.launchers.codex.get_settings", return_value=settings
        ),
        patch(
            "free_claude_code.cli.launchers.codex.preflight_proxy", return_value=None
        ),
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="resolved-codex.cmd",
        ),
        patch(
            "free_claude_code.cli.launchers.codex.codex_model_catalog_path",
            return_value=tmp_path / "codex-model-catalog.json",
        ),
        patch(
            "free_claude_code.cli.launchers.codex.urlopen", side_effect=URLError("boom")
        ),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        patch("free_claude_code.cli.launchers.common.register_pid"),
        patch("free_claude_code.cli.launchers.common.unregister_pid"),
        pytest.raises(SystemExit) as exc_info,
    ):
        process = popen.return_value
        process.pid = 12345
        process.wait.return_value = 0
        launch(["exec", "hello"])

    assert exc_info.value.code == 0
    command = popen.call_args.args[0]
    assert not any("model_catalog_json=" in arg for arg in command)
    captured = capsys.readouterr()
    assert "could not prepare Codex model catalog" in captured.err
    assert "launching without model picker catalog" in captured.err


def test_pi_launcher_builds_scoped_session_command_and_proxy_env(
    tmp_path: Path,
) -> None:
    from free_claude_code.cli.launchers.pi import (
        build_pi_launcher_command,
        build_pi_launcher_env,
    )

    extension = tmp_path / "pi_extension.ts"
    env = build_pi_launcher_env(
        proxy_root_url="http://127.0.0.1:9191/",
        auth_token=" proxy-token ",
        base_env={
            "PATH": "keep",
            "ANTHROPIC_API_KEY": "native-pi-credential",
            "FCC_PI_API_KEY": "stale-key",
            "FCC_PI_BASE_URL": "https://stale.invalid",
        },
    )

    assert build_pi_launcher_command(
        binary_path="resolved-pi.cmd",
        extension_path=extension,
        argv=["--print", "hello"],
    ) == [
        "resolved-pi.cmd",
        "-e",
        str(extension),
        "--models",
        "free-claude-code/**",
        "--print",
        "hello",
    ]
    assert env == {
        "PATH": "keep",
        "ANTHROPIC_API_KEY": "native-pi-credential",
        "FCC_PI_BASE_URL": "http://127.0.0.1:9191",
        "FCC_PI_API_KEY": "proxy-token",
    }


def test_pi_launcher_uses_no_auth_sentinel_for_blank_token() -> None:
    from free_claude_code.cli.launchers.pi import build_pi_launcher_env

    env = build_pi_launcher_env(
        proxy_root_url="http://127.0.0.1:8082",
        auth_token="",
        base_env={},
    )

    assert env["FCC_PI_API_KEY"] == "fcc-no-auth"


def test_launch_pi_registers_bundled_extension_for_sessions(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: Path,
) -> None:
    from free_claude_code.cli.launchers.pi import launch

    monkeypatch.setenv("KEEP_ME", "yes")
    monkeypatch.setenv("FCC_PI_API_KEY", "stale-key")
    extension = tmp_path / "pi_extension.ts"
    extension.write_text("export default () => {};", encoding="utf-8")
    settings = _launcher_settings(port=9191, token="proxy-token")

    with (
        patch("free_claude_code.cli.launchers.pi.get_settings", return_value=settings),
        patch("free_claude_code.cli.launchers.pi.preflight_proxy", return_value=None),
        patch(
            "free_claude_code.cli.launchers.pi.pi_extension_path",
            return_value=extension,
        ),
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="resolved-pi.cmd",
        ),
        patch(
            "free_claude_code.cli.launchers.pi.pi_binary_is_compatible",
            return_value=True,
        ),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        patch("free_claude_code.cli.launchers.common.register_pid"),
        patch("free_claude_code.cli.launchers.common.unregister_pid"),
        pytest.raises(SystemExit) as exc_info,
    ):
        process = popen.return_value
        process.pid = 12345
        process.wait.return_value = 0
        launch(["--print", "hello"])

    assert exc_info.value.code == 0
    assert popen.call_args.args[0] == [
        "resolved-pi.cmd",
        "-e",
        str(extension),
        "--models",
        "free-claude-code/**",
        "--print",
        "hello",
    ]
    child_env = popen.call_args.kwargs["env"]
    assert child_env["FCC_PI_BASE_URL"] == "http://127.0.0.1:9191"
    assert child_env["FCC_PI_API_KEY"] == "proxy-token"
    assert child_env["KEEP_ME"] == "yes"


@pytest.mark.parametrize(
    "argv",
    [
        ["--help"],
        ["--version"],
        ["config", "set", "theme", "dark"],
        ["install", "npm:example"],
        ["list"],
        ["remove", "npm:example"],
        ["uninstall", "npm:example"],
        ["update"],
    ],
)
def test_launch_pi_passes_management_commands_through_without_proxy(
    argv: list[str],
) -> None:
    from free_claude_code.cli.launchers.pi import launch

    with (
        patch("free_claude_code.cli.launchers.pi.get_settings") as get_settings,
        patch("free_claude_code.cli.launchers.pi.preflight_proxy") as preflight,
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="resolved-pi",
        ),
        patch(
            "free_claude_code.cli.launchers.pi.pi_binary_is_compatible",
            return_value=True,
        ),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        patch("free_claude_code.cli.launchers.common.register_pid"),
        patch("free_claude_code.cli.launchers.common.unregister_pid"),
        pytest.raises(SystemExit) as exc_info,
    ):
        process = popen.return_value
        process.pid = 12345
        process.wait.return_value = 0
        launch(argv)

    assert exc_info.value.code == 0
    assert popen.call_args.args[0] == ["resolved-pi", *argv]
    get_settings.assert_not_called()
    preflight.assert_not_called()


def test_launch_pi_fails_closed_when_bundled_extension_is_missing(
    capsys: pytest.CaptureFixture[str],
    tmp_path: Path,
) -> None:
    from free_claude_code.cli.launchers.pi import launch

    settings = _launcher_settings(port=9191)
    with (
        patch("free_claude_code.cli.launchers.pi.get_settings", return_value=settings),
        patch("free_claude_code.cli.launchers.pi.preflight_proxy", return_value=None),
        patch(
            "free_claude_code.cli.launchers.pi.pi_extension_path",
            return_value=tmp_path / "missing.ts",
        ),
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="resolved-pi",
        ),
        patch(
            "free_claude_code.cli.launchers.pi.pi_binary_is_compatible",
            return_value=True,
        ),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        pytest.raises(SystemExit) as exc_info,
    ):
        launch([])

    assert exc_info.value.code == 1
    popen.assert_not_called()
    assert "bundled Pi extension is missing" in capsys.readouterr().err


def test_pi_install_hints_use_official_platform_installers() -> None:
    from free_claude_code.cli.launchers.pi import pi_install_hint

    assert "https://pi.dev/install.ps1" in pi_install_hint("win32")
    assert "https://pi.dev/install.sh" in pi_install_hint("darwin")


@pytest.mark.parametrize(
    ("help_output", "return_code", "expected"),
    [
        ("--extension <path>\n--models <patterns>\n", 0, True),
        ("--models <patterns>\n", 0, False),
        ("--extension <path>\n", 0, False),
        ("--extension <path>\n--models <patterns>\n", 1, False),
    ],
)
def test_pi_binary_compatibility_requires_both_launcher_capabilities(
    help_output: str,
    return_code: int,
    expected: bool,
) -> None:
    from free_claude_code.cli.launchers.pi import pi_binary_is_compatible

    with patch(
        "free_claude_code.cli.launchers.pi.subprocess.run",
        return_value=SimpleNamespace(returncode=return_code, stdout=help_output),
    ):
        assert pi_binary_is_compatible("resolved-pi") is expected


def test_launch_pi_rejects_unrelated_pi_binary(
    capsys: pytest.CaptureFixture[str],
) -> None:
    from free_claude_code.cli.launchers.pi import launch

    with (
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="unrelated-pi",
        ),
        patch(
            "free_claude_code.cli.launchers.pi.pi_binary_is_compatible",
            return_value=False,
        ),
        patch("free_claude_code.cli.launchers.pi.get_settings") as get_settings,
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        pytest.raises(SystemExit) as exc_info,
    ):
        launch([])

    assert exc_info.value.code == 126
    get_settings.assert_not_called()
    popen.assert_not_called()
    captured = capsys.readouterr()
    assert "not a compatible Pi Coding Agent" in captured.err
    assert "https://pi.dev/install." in captured.err


def test_launch_claude_keyboard_interrupt_kills_child_tree() -> None:
    from free_claude_code.cli.launchers.claude import launch

    settings = _launcher_settings(port=9191, token="proxy-token")

    with (
        patch(
            "free_claude_code.cli.launchers.claude.get_settings", return_value=settings
        ),
        patch(
            "free_claude_code.cli.launchers.claude.preflight_proxy", return_value=None
        ),
        patch(
            "free_claude_code.cli.launchers.common.shutil.which",
            return_value="resolved-claude.cmd",
        ),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        patch("free_claude_code.cli.launchers.common.register_pid"),
        patch(
            "free_claude_code.cli.launchers.common.kill_pid_tree_best_effort"
        ) as kill_tree,
        patch("free_claude_code.cli.launchers.common.unregister_pid") as unregister_pid,
        pytest.raises(KeyboardInterrupt),
    ):
        process = popen.return_value
        process.pid = 12345
        process.wait.side_effect = [KeyboardInterrupt, 0]

        launch([])

    kill_tree.assert_called_once_with(12345)
    unregister_pid.assert_called_once_with(12345)


def test_launch_claude_exits_when_command_cannot_be_resolved(
    capsys: pytest.CaptureFixture[str],
) -> None:
    from free_claude_code.cli.launchers.claude import launch

    settings = _launcher_settings()
    with (
        patch(
            "free_claude_code.cli.launchers.claude.get_settings", return_value=settings
        ),
        patch(
            "free_claude_code.cli.launchers.claude.preflight_proxy", return_value=None
        ),
        patch("free_claude_code.cli.launchers.common.shutil.which", return_value=None),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        pytest.raises(SystemExit) as exc_info,
    ):
        launch([])

    assert exc_info.value.code == 127
    popen.assert_not_called()
    captured = capsys.readouterr()
    assert "Could not find Claude Code command: claude" in captured.err
    assert "npm install -g @anthropic-ai/claude-code" in captured.err


def test_launch_claude_unreachable_proxy_exits_with_hint(
    capsys: pytest.CaptureFixture[str],
) -> None:
    from free_claude_code.cli.launchers.claude import launch

    settings = _launcher_settings(port=9393)
    with (
        patch(
            "free_claude_code.cli.launchers.claude.get_settings", return_value=settings
        ),
        patch(
            "free_claude_code.cli.launchers.claude.preflight_proxy",
            return_value="connection refused",
        ),
        patch("free_claude_code.cli.launchers.common.subprocess.Popen") as popen,
        pytest.raises(SystemExit) as exc_info,
    ):
        launch([])

    assert exc_info.value.code == 1
    popen.assert_not_called()
    captured = capsys.readouterr()
    assert "http://127.0.0.1:9393" in captured.err
    assert "fcc-server" in captured.err