# SPDX-License-Identifier: MIT
# SPDX-FileCopyrightText: Copyright 2025 Sam Blenny
#
# See NOTES.md for documentation links and pinout info.
#
import board
import digitalio
import os
import time

# Record powerup time for calculating delay until I2C power is stable. The
# Feather ESP32-S3 board draws a big current spike when I2C_POWER gets
# turned on by the supervisor prior to loading boot.py on boot or wake from
# deep sleep. So, when running on a small lipo, we must allow time to
# recover from a possible brownout on the I2C bus power rail and pullups.
t0 = time.monotonic()

# ---------------------------------------------------------------------------
# Base Station Mode Override Option for settings.toml
#
# Put `BASE_MODE = 1` in settings.toml to force base station mode without
# regard to board_id. This gives me an easy way to use a Feather ESP32-S3
# sensor build as an extra base station (see also: `LCD_ENABLE = 0`).
#
BASE_MODE = False
if (base := os.getenv("BASE_MODE")) is not None:
    BASE_MODE = bool(base)
# ---------------------------------------------------------------------------


# Each time board resets or wakes from deep sleep, select mode from board_id:
if BASE_MODE or board.board_id == 'adafruit_feather_rp2350':
    import base_mode
    base_mode.run()

elif board.board_id == 'adafruit_feather_esp32s3_nopsram':
    # Toggle A1 to mark the start of code.py for the power profiler
    a1 = digitalio.DigitalInOut(board.A1)
    a1.switch_to_output(value=True)

    # start sensor mode
    import sensor_mode
    sensor_mode.run(a1, t0)

else:
    raise ValueError("Unexpected board_id. Halting. (check code.py)")