#!/usr/bin/env bash
set -euo pipefail

usage() {
    echo "Usage: $0 compile|examples --platform esp8266|esp32" >&2
    exit 2
}

[[ $# -eq 3 && ( "${1:-}" == "compile" || "${1:-}" == "examples" ) && "${2:-}" == "--platform" ]] || usage
case "${3:-}" in
    esp8266|esp32) environment="${3}" ;;
    *) usage ;;
esac

root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"

pio_for_platform() {
    if [[ "$environment" != "esp32" ]]; then
        pio "$@"
        return
    fi

    # Keep Core 3.3.11's package-form esptool and generated pioarduino
    # environment in a persistent repository cache. It is never cleared by
    # this script, and isolates this tested graph from stale global metadata.
    local core_dir packages_dir cache_dir
    core_dir="${ARDUINOHA_PLATFORMIO_CORE_DIR:-${XDG_CACHE_HOME:-$HOME/.cache}/arduinoha-platformio/core-3.3.11}"
    packages_dir="${ARDUINOHA_PLATFORMIO_PACKAGES_DIR:-$core_dir/packages}"
    cache_dir="${ARDUINOHA_PLATFORMIO_CACHE_DIR:-$core_dir/cache}"
    install -d -m 700 "$core_dir" "$packages_dir" "$cache_dir"
    PLATFORMIO_CORE_DIR="$core_dir" PLATFORMIO_PACKAGES_DIR="$packages_dir" \
        PLATFORMIO_CACHE_DIR="$cache_dir" pio "$@"
}

case "$1" in
    compile)
        # PlatformIO's test command starts many archive jobs by default. This
        # multi-suite project has a reproducible missing-object race on Core
        # 3.3.11 at high parallelism, so use a deterministic default while
        # preserving an explicit caller override.
        export PLATFORMIO_RUN_JOBS="${PLATFORMIO_RUN_JOBS:-1}"
        pio_for_platform test -d "$root" -e "$environment" --without-uploading --without-testing
        echo "ArduinoHA compile check passed for $environment"
        ;;
    examples)
        mapfile -t examples < <(find "$root/examples" -mindepth 1 -maxdepth 1 -type d -name '[0-9][0-9]-*' -print | sort)
        if (( ${#examples[@]} == 0 )); then
            echo "No example projects found" >&2
            exit 1
        fi
        for example in "${examples[@]}"; do
            pio_for_platform run -d "$example" -e "$environment" </dev/null
        done
        echo "ArduinoHA examples compile check passed for $environment"
        ;;
esac