#!/usr/bin/env bash

# Do NOT use `set -e` with Gradle
set -u

RUN_DIR="run"
OPTIONS_SRC="./config/options.txt"
OPTIONS_DST="$RUN_DIR/options.txt"

GRADLE="./gradlew"
GRADLE_FLAGS=(
  "--console=plain"
  "--configuration-cache"
)

# ---------- helpers ----------

inject_options() {
  if [[ -f "$OPTIONS_SRC" ]]; then
    echo "[*] Injecting options.txt..."
    cp "$OPTIONS_SRC" "$OPTIONS_DST"
  else
    echo "[!] Warning: $OPTIONS_SRC not found, skipping injection"
  fi
}

ensure_run_dir() {
  if [[ ! -d "$RUN_DIR" ]]; then
    echo "[*] Creating run directory..."
    mkdir -p "$RUN_DIR"
  fi
}

# ---------- actions ----------

clean() {
  clear
  echo "[*] Running gradle clean..."
  $GRADLE clean "${GRADLE_FLAGS[@]}"
}

build() {
  clear

  ensure_run_dir
  inject_options

  echo "[*] Running client..."
  $GRADLE runClient "${GRADLE_FLAGS[@]}"
}

show_tree() {
  clear
  echo "[*] Project tree (respecting .gitignore):"
  tree --gitignore
}

ship() {
  clear
  echo "[*] Building project..."
  $GRADLE build "${GRADLE_FLAGS[@]}"
  echo "[+] Build ready to ship."
}

# ---------- help ----------

help_menu() {
  cat <<'EOF'
🐿️  S Q U I R R E L   B U I L D   T O O L  🐿️

Usage:
  ./chipper [option]

Options:
  --clean        Run gradle clean
  --build        Run client (fast path)
  --tree         Show project tree only
  --ship         Build project
  --help         Show this help menu

Notes:
- Uses Gradle configuration cache
- Plain console output (no fake progress)
- Safe to Ctrl+C after EXECUTION starts

The squirrel believes in you.
EOF
}

# ---------- argument parsing ----------

if [[ $# -eq 0 ]]; then
  help_menu
  exit 0
fi

case "$1" in
  --clean)
    clean
    ;;
  --build)
    build
    ;;
  --tree)
    show_tree
    ;;
  --ship)
    ship
    ;;
  --help|-h)
    help_menu
    ;;
  *)
    echo "[!] Unknown option: $1"
    echo ""
    help_menu
    exit 1
    ;;
esac