#!/usr/bin/env bash
# Builds (or flashes/monitors, if a serial port is actually attached)
# the espresso_frame firmware for one board variant, via the project's
# own firmware/build_for_board.sh -- this script just sources the
# ESP-IDF environment first and auto-runs `set-target esp32c6` on a
# board's very first build (a fresh clone has no generated sdkconfig
# yet, same reasoning as CI's own build steps -- see firmware/README.md's
# "Building for the Seeed XIAO ESP32-C6" section).
#
# Usage:
#   build.sh                        # build devkit (default)
#   build.sh devkit
#   build.sh xiao
#   build.sh both                   # build both board variants
#   build.sh xiao flash -p /dev/ttyUSB0   # only meaningful with real hardware attached
set -euo pipefail

script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
firmware_dir="$(git -C "$script_dir" rev-parse --show-toplevel)/firmware"

IDF_DIR="$HOME/.espressif-idf/esp-idf"
if [ ! -f "$IDF_DIR/export.sh" ]; then
  echo "ESP-IDF not found at $IDF_DIR -- run setup.sh first" >&2
  exit 1
fi
# export.sh is chatty and assumes an interactive shell prompt in spots;
# redirect its own stdout, not ours, so build.sh's actual output (and a
# real failure's stderr) stays visible.
source "$IDF_DIR/export.sh" > /dev/null

cd "$firmware_dir"

build_one() {
  local board="$1"
  shift
  local sdkconfig
  case "$board" in
    devkit) sdkconfig="sdkconfig" ;;
    xiao) sdkconfig="sdkconfig.xiao_local" ;;
    *) echo "Unknown board '$board' -- expected 'devkit' or 'xiao'" >&2; exit 1 ;;
  esac

  if [ ! -f "$sdkconfig" ]; then
    echo "==> $board: no generated sdkconfig yet, setting target esp32c6"
    ./build_for_board.sh "$board" set-target esp32c6
  fi

  local args=("$@")
  if [ ${#args[@]} -eq 0 ]; then
    args=(build)
  fi
  ./build_for_board.sh "$board" "${args[@]}"
}

board="${1:-devkit}"
shift || true

if [ "$board" = "both" ]; then
  build_one devkit "$@"
  build_one xiao "$@"
else
  build_one "$board" "$@"
fi