#!/usr/bin/env bash
# 编译装甲板固件（ESP32-C3），凭据与队伍号来自 .env。
#
#   ARMOR_TEAM=1 scripts/build_armor.sh      # 队伍二（蓝）
#   scripts/build_armor.sh                   # 队伍一（红，默认）
#
# ESP-IDF 的位置来自 armor/.cargo/config.toml（IDF_PATH / ESP_IDF_TOOLS_INSTALL_DIR），
# 所以这里不需要先 activate ESP-IDF。
set -euo pipefail

cd "$(dirname "$0")/.."

if [ -f .env ]; then
    set -a
    # shellcheck disable=SC1091
    . ./.env
    set +a
fi

: "${WIFI_SSID:?set WIFI_SSID in .env (or export it) before building}"
export WIFI_PASS="${WIFI_PASS:-}"
# 队伍一（红）是默认值；队伍号在固件里决定灯色，也在上报里决定裁判端算哪一边。
export ARMOR_TEAM="${ARMOR_TEAM:-0}"
# 受击阈值（原始 12 bit ADC）。看 status 行里的 peak[...] 来定：底噪要明显低于它，
# 正常敲击要明显高于它。不写就是参考实现的 2000。
export ARMOR_THRESHOLD="${ARMOR_THRESHOLD:-2000}"

case "$ARMOR_TEAM" in
    0 | 1) ;;
    *)
        echo "ARMOR_TEAM must be 0 or 1, got '$ARMOR_TEAM'" >&2
        exit 1
        ;;
esac

case "$ARMOR_THRESHOLD" in
    '' | *[!0-9]*)
        echo "ARMOR_THRESHOLD must be a non-negative integer, got '$ARMOR_THRESHOLD'" >&2
        exit 1
        ;;
esac

echo "==> building armor firmware for esp32c3 (team $ARMOR_TEAM, threshold $ARMOR_THRESHOLD)"
cd armor
cargo build --release --bin armor "$@"

echo
echo "elf: armor/target/riscv32imc-esp-espidf/release/armor"
echo "next: scripts/flash_armor.sh"