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#!/usr/bin/env bash
set -euo pipefail
PORT="${PORT:-/dev/cu.usbmodem101}"
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
FIRMWARE="$ROOT/firmware/adafruit-circuitpython-espressif_esp32s3_devkitc_1_n8r8-en_US-10.2.1.bin"
CIRCUITPY_MOUNT="${CIRCUITPY_MOUNT:-}"
if [[ ! -f "$FIRMWARE" ]]; then
echo "Firmware not found: $FIRMWARE" >&2
exit 1
fi
if [[ ! -r "$PORT" || ! -w "$PORT" ]]; then
cat >&2 <<EOF
Cannot access $PORT as $(id -un).
Temporary fix from a local terminal:
sudo chmod 666 $PORT
Permanent fix:
sudo usermod -aG dialout $(id -un)
# then log out/in, or start a new shell with: newgrp dialout
EOF
exit 2
fi
echo "==> Probing ESP32-S3 on $PORT"
python3 -m esptool --chip esp32s3 --port "$PORT" flash_id
echo "==> Erasing flash"
python3 -m esptool --chip esp32s3 --port "$PORT" erase_flash
echo "==> Flashing CircuitPython N8R8 firmware"
python3 -m esptool --chip esp32s3 --port "$PORT" --baud 460800 write_flash -z 0x0 "$FIRMWARE"
echo "==> Waiting for CIRCUITPY mount"
for _ in $(seq 1 60); do
if [[ -n "$CIRCUITPY_MOUNT" && -d "$CIRCUITPY_MOUNT" ]]; then
break
fi
for candidate in \
"/media/$USER/CIRCUITPY" \
"/run/media/$USER/CIRCUITPY" \
"/media/$(id -un)/CIRCUITPY" \
"/Volumes/CIRCUITPY"; do
if [[ -d "$candidate" ]]; then
CIRCUITPY_MOUNT="$candidate"
break 2
fi
done
sleep 1
done
if [[ -z "$CIRCUITPY_MOUNT" || ! -d "$CIRCUITPY_MOUNT" ]]; then
cat >&2 <<EOF
Flashing finished, but CIRCUITPY did not auto-mount.
Reset the board once, then rerun just deployment with:
CIRCUITPY_MOUNT=/path/to/CIRCUITPY bash circuitpython/deploy_only.sh
EOF
exit 3
fi
echo "==> Deploying prototype to $CIRCUITPY_MOUNT"
mkdir -p "$CIRCUITPY_MOUNT/lib"
cp "$ROOT/circuitpython/code.py" "$CIRCUITPY_MOUNT/code.py"
cp "$ROOT/circuitpython/lib/"*.py "$CIRCUITPY_MOUNT/lib/"
cp "$ROOT/circuitpython/lib/"*.mpy "$CIRCUITPY_MOUNT/lib/"
sync
echo "==> Deployed. Files on CIRCUITPY:"
find "$CIRCUITPY_MOUNT" -maxdepth 2 -type f | sort
echo "==> Done. Reset the board if it does not reload automatically."