"""语音客户端配置：系统级 + 用户级合并与保存。"""

from __future__ import annotations

import json

import pytest

from voice_confirmation_client.core.machine_config import (
    http_base_url_from_config,
    load_voice_client_config,
    machine_config_file_path,
    save_user_voice_client_config,
    user_voice_client_config_path,
    voice_terminal_id_from_config,
)


def test_fields_from_system_file_only(tmp_path, monkeypatch: pytest.MonkeyPatch) -> None:
    cfg = tmp_path / "voice_client.json"
    cfg.write_text(
        json.dumps(
            {"voice_terminal_id": "t-1", "http_base_url": "http://api.example:38080"},
        ),
        encoding="utf-8",
    )
    monkeypatch.setenv("VOICE_CLIENT_MACHINE_CONFIG_FILE", str(cfg))
    monkeypatch.setenv("VOICE_CLIENT_USER_CONFIG_FILE", str(tmp_path / "none.json"))
    (tmp_path / "none.json").write_text("{}", encoding="utf-8")
    data = load_voice_client_config()
    assert voice_terminal_id_from_config(data) == "t-1"
    assert http_base_url_from_config(data) == "http://api.example:38080"


def test_user_file_overrides_system(tmp_path, monkeypatch: pytest.MonkeyPatch) -> None:
    sys_f = tmp_path / "sys.json"
    sys_f.write_text(
        json.dumps({"voice_terminal_id": "sys", "http_base_url": "http://sys:1"}),
        encoding="utf-8",
    )
    usr_f = tmp_path / "usr.json"
    usr_f.write_text(
        json.dumps({"voice_terminal_id": "usr", "http_base_url": "http://usr:2"}),
        encoding="utf-8",
    )
    monkeypatch.setenv("VOICE_CLIENT_MACHINE_CONFIG_FILE", str(sys_f))
    monkeypatch.setenv("VOICE_CLIENT_USER_CONFIG_FILE", str(usr_f))
    data = load_voice_client_config()
    assert voice_terminal_id_from_config(data) == "usr"
    assert http_base_url_from_config(data) == "http://usr:2"


def test_http_base_default_when_missing_key(
    tmp_path, monkeypatch: pytest.MonkeyPatch
) -> None:
    cfg = tmp_path / "voice_client.json"
    cfg.write_text(json.dumps({"voice_terminal_id": "x"}), encoding="utf-8")
    monkeypatch.setenv("VOICE_CLIENT_MACHINE_CONFIG_FILE", str(cfg))
    monkeypatch.setenv("VOICE_CLIENT_USER_CONFIG_FILE", str(tmp_path / "empty.json"))
    (tmp_path / "empty.json").write_text("{}", encoding="utf-8")
    data = load_voice_client_config()
    assert http_base_url_from_config(data) == "http://127.0.0.1:38080"


def test_machine_config_file_path_respects_override(
    tmp_path, monkeypatch: pytest.MonkeyPatch
) -> None:
    p = tmp_path / "custom.json"
    monkeypatch.setenv("VOICE_CLIENT_MACHINE_CONFIG_FILE", str(p))
    assert machine_config_file_path() == p


def test_user_config_file_path_respects_override(
    tmp_path, monkeypatch: pytest.MonkeyPatch
) -> None:
    p = tmp_path / "u.json"
    monkeypatch.setenv("VOICE_CLIENT_USER_CONFIG_FILE", str(p))
    assert user_voice_client_config_path() == p


def test_missing_files_return_empty_merge(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("VOICE_CLIENT_MACHINE_CONFIG_FILE", "/nonexistent/a.json")
    monkeypatch.setenv("VOICE_CLIENT_USER_CONFIG_FILE", "/nonexistent/b.json")
    assert load_voice_client_config() == {}


def test_save_user_voice_client_config(tmp_path, monkeypatch: pytest.MonkeyPatch) -> None:
    out = tmp_path / "out.json"
    monkeypatch.setenv("VOICE_CLIENT_USER_CONFIG_FILE", str(out))
    save_user_voice_client_config(
        voice_terminal_id="  t99 ",
        http_base_url="http://host:38080/",
    )
    assert out.is_file()
    data = json.loads(out.read_text(encoding="utf-8"))
    assert data == {"voice_terminal_id": "t99", "http_base_url": "http://host:38080"}