#!/usr/bin/env bash
# Builds the firmware with the credentials from .env (see .env.example).
#
# esp-idf-sys downloads the pinned ESP-IDF automatically. Set IDF_PATH in the
# environment to reuse an existing installation (see README.md).
set -euo pipefail

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

# Resolve the SDK defaults/components from this repository even when the build
# cache is elsewhere, and copy the partition table into the CMake project.
export CARGO_WORKSPACE_DIR="$PWD"
export ESP_IDF_GLOB_BASE="$PWD"
export ESP_IDF_GLOB_PARTITIONS="partitions.csv"

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:-}"

package=0
cargo_args=()
for arg in "$@"; do
    case "$arg" in
        --package) package=1 ;;
        *) cargo_args+=("$arg") ;;
    esac
done

cargo build --release --locked "${cargo_args[@]}"

if [ "$package" -eq 1 ]; then
    if ! command -v python3 >/dev/null 2>&1; then
        echo "error: --package requires python3 on PATH" >&2
        exit 1
    fi
    python3 scripts/package_firmware.py --firmware target/firmware
fi