from __future__ import annotations

import os
from dataclasses import dataclass
from pathlib import Path
from typing import Tuple


APP_NAME = "Ameba Control Panel"
UI_LOG_TAIL_LINES = 100_000
LOG_FLUSH_INTERVAL_MS = 30
PERF_UPDATE_INTERVAL_MS = 1_000
PORT_REFRESH_INTERVAL_MS = 2_000
DEFAULT_BAUD = 1_500_000
COMMON_BAUD_RATES = [
    115_200,
    230_400,
    460_800,
    921_600,
    1_000_000,
    DEFAULT_BAUD,
    2_000_000,
    3_000_000,
]

TIMESTAMP_FMT = "%Y-%m-%d %H:%M:%S.%f"


@dataclass(frozen=True)
class DeviceProfile:
    key: str
    label: str
    rx_color: str
    tx_color: str
    info_color: str


DEVICE_PROFILES: Tuple[DeviceProfile, ...] = (
    DeviceProfile("amebapro3", "AmebaPro3 (RTL8735C)", "#1b5e20", "#0d47a1", "#424242"),
    DeviceProfile("amebapro2", "AmebaPro2 (RTL8735B)", "#1b5e20", "#0d47a1", "#424242"),
    DeviceProfile("amebasmart", "AmebaSmart (RTL8730E)", "#1b5e20", "#0d47a1", "#424242"),
)


def app_data_dir() -> Path:
    base = os.environ.get("LOCALAPPDATA")
    if base:
        return Path(base) / "AmebaControlPanel"
    # Fallback for non-Windows dev environments.
    return Path.home() / ".local" / "share" / "AmebaControlPanel"