#!/usr/bin/env python3
"""Standalone blink pattern demo (WDT-fed tick loop).

Run on device::

    mpremote connect <port> run tests/patterns/blink.py
"""
import sys
import utime


def _bootstrap_import_path():
    """Find ``settings`` / ``presets`` on device or when run via mpremote."""
    try:
        import uos as os
    except ImportError:
        import os

    candidates = []
    try:
        here = __file__.rsplit("/", 1)[0]
        if here:
            candidates.append(here)
            tests = here.rsplit("/", 1)[0]
            if tests:
                candidates.append(tests)
                root = tests.rsplit("/", 1)[0]
                if root:
                    candidates.append(root)
                    candidates.append(root + "/src")
    except NameError:
        pass
    for p in (".", "..", "/", "src", "/src"):
        candidates.append(p)
    for p in candidates:
        if p and p not in sys.path:
            sys.path.insert(0, p)


_bootstrap_import_path()

from machine import WDT  # noqa: E402
from settings import Settings  # noqa: E402
from presets import Presets  # noqa: E402


def _run_ms(presets, wdt, duration_ms, sleep_ms=10):
    start = utime.ticks_ms()
    while utime.ticks_diff(utime.ticks_ms(), start) < duration_ms:
        wdt.feed()
        presets.tick()
        utime.sleep_ms(sleep_ms)


def main():
    settings = Settings()
    presets = Presets(settings.get("led_pin", 10), settings.get("num_leds", 30))
    wdt = WDT(timeout=10000)

    presets.edit(
        "test_blink",
        {
            "p": "blink",
            "b": 64,
            "d": 200,
            "c": [(255, 0, 0), (0, 0, 255)],
        },
    )
    presets.select("test_blink")
    _run_ms(presets, wdt, 1500)


if __name__ == "__main__":
    main()