#!/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 for
# devkit/xiao, esp32s3 for ee02) 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).
#
# NOTE: ee02 builds will fail to compile -- deliberately -- until
# firmware/components/epd13in3e's panel driver is ported from vendor
# demo code (see that component's own top-of-file comment). The build
# plumbing itself (target selection, partition table, sdkconfig
# layering) is exercised regardless; only the final compile step fails.
#
# Usage:
#   build.sh                        # build devkit (default)
#   build.sh devkit
#   build.sh xiao
#   build.sh ee02
#   build.sh both                   # build devkit + xiao (unchanged meaning)
#   build.sh all                    # build devkit + xiao + ee02
#   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="$1"
  shift
  local sdkconfig target
  case "$board" in
    devkit) sdkconfig="sdkconfig"; target="esp32c6" ;;
    xiao) sdkconfig="sdkconfig.xiao_local"; target="esp32c6" ;;
    ee02) sdkconfig="sdkconfig.ee02_local"; target="esp32s3" ;;
    *) echo "Unknown board '$board' -- expected 'devkit', 'xiao', or 'ee02'" >&2; exit 1 ;;
  esac

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

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

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

case "$board" in
  both)
    build_one devkit "$@"
    build_one xiao "$@"
    ;;
  all)
    build_one devkit "$@"
    build_one xiao "$@"
    build_one ee02 "$@"
    ;;
  *)
    build_one "$board" "$@"
    ;;
esac