import json
from pathlib import Path

from typer.testing import CliRunner

from reyna_cli.cli import app
from reyna_cli.config import Device, Registry, get_device, load_registry
from reyna_cli.utils import infer_capabilities, resolve_tool_name

runner = CliRunner()


def test_resolve_tool_name():
    available_tools = [
        {"name": "draw_text", "description": "Draw text on screen"},
        {"name": "get_battery", "description": "Get battery status"},
        {"name": "play_audio_base64", "description": "Play audio"},
    ]
    assert resolve_tool_name("text", available_tools) == "draw_text"
    assert resolve_tool_name("battery", available_tools) == "get_battery"
    assert resolve_tool_name("speech", available_tools) == "play_audio_base64"
    assert resolve_tool_name("unknown", available_tools) is None


def test_infer_capabilities():
    caps = infer_capabilities([{"name": "draw_text"}, {"name": "screenshot"}])
    assert caps["text"] == "draw_text"
    assert caps["screenshot"] == "screenshot"
    assert caps["speech"] is None


def test_registry_mapping_yaml(tmp_path, monkeypatch):
    registry_path = tmp_path / "local_devices.yaml"
    registry_path.write_text(
        """
version: 1
devices:
  esp32_screen:
    display_name: ESP32 Screen
    host: esp32-screen.local
    url: http://esp32-screen.local/api/mcp
    fallback_url: http://192.168.68.123/api/mcp
    capabilities: [display, audio]
""",
        encoding="utf-8",
    )
    monkeypatch.setenv("REYNA_DEVICES_REGISTRY", str(registry_path))
    registry = load_registry()
    device = get_device("screen", registry)
    assert device is not None
    assert device.id == "esp32_screen"
    assert device.candidate_urls() == ["http://esp32-screen.local/api/mcp", "http://192.168.68.123/api/mcp"]


def test_config_get_device():
    registry = Registry(devices=[Device(id="iphone_mcp", url="http://localhost:8080/api/mcp")])
    assert get_device("iphone", registry).url == "http://localhost:8080/api/mcp"
    assert get_device("nonexistent", registry) is None


def test_cli_doctor():
    result = runner.invoke(app, ["doctor", "--json"])
    assert result.exit_code == 0
    assert json.loads(result.stdout)["ok"] is True


def test_cli_devices_list(monkeypatch, tmp_path):
    registry_path = tmp_path / "local_devices.yaml"
    registry_path.write_text("devices: {}\n", encoding="utf-8")
    monkeypatch.setenv("REYNA_DEVICES_REGISTRY", str(registry_path))
    result = runner.invoke(app, ["devices", "list", "--json"])
    assert result.exit_code == 0
    payload = json.loads(result.stdout)
    assert payload["ok"] is True
    assert payload["devices"] == []


def test_cli_json_args_invalid_fails():
    result = runner.invoke(app, ["devices", "call", "nonexistent", "tool", "--args", "{invalid}", "--json"])
    assert result.exit_code != 0
    assert json.loads(result.stdout)["ok"] is False


def test_screen_has_subcommands():
    result = runner.invoke(app, ["screen", "--help"])
    assert result.exit_code == 0
    assert "text" in result.stdout
    assert "speak" in result.stdout


def test_devices_screen_has_subcommands():
    result = runner.invoke(app, ["devices", "screen", "--help"])
    assert result.exit_code == 0
    assert "text" in result.stdout


def test_devices_arm_has_subcommands():
    result = runner.invoke(app, ["devices", "arm", "--help"])
    assert result.exit_code == 0
    assert "state" in result.stdout
    assert "wave" in result.stdout
    assert "home" in result.stdout


def test_immich_has_subcommands():
    result = runner.invoke(app, ["immich", "--help"])
    assert result.exit_code == 0
    assert "stats" in result.stdout
    assert "albums" in result.stdout
    assert "search" in result.stdout


def test_mongo_has_subcommands():
    result = runner.invoke(app, ["mongo", "--help"])
    assert result.exit_code == 0
    assert "dbs" in result.stdout
    assert "collections" in result.stdout
    assert "find" in result.stdout