#!/usr/bin/env bash
# One-shot: clone (optional) + build CST-Agent on Linux, WSL or macOS.
set -euo pipefail

REPO_URL="${CST_AGENT_REPO:-https://git.whcself.xyz/WHC/CST-agent.git}"
DIR="${1:-}"

if [[ -z "$DIR" ]]; then
  if [[ -f Makefile && -d src ]]; then
    DIR="$(pwd)"
  else
    DIR="CST-agent"
  fi
fi

if [[ ! -f "$DIR/Makefile" ]]; then
  echo "==> git clone $REPO_URL -> $DIR"
  git clone "$REPO_URL" "$DIR"
fi
cd "$DIR"

echo "==> deps hint: gcc/clang make cmake libcurl ncursesw"
if [[ "$(uname -s)" == Darwin ]]; then
  echo "    macOS: xcode-select --install && brew install ncurses curl pkg-config"
elif command -v pacman >/dev/null 2>&1; then
  echo "    Arch: sudo pacman -S --needed base-devel cmake curl ncurses"
elif command -v apt-get >/dev/null 2>&1; then
  echo "    Debian/Ubuntu/WSL: sudo apt install build-essential cmake pkg-config libcurl4-openssl-dev libncurses-dev"
elif command -v dnf >/dev/null 2>&1; then
  echo "    Fedora: sudo dnf install gcc make cmake pkgconf libcurl-devel ncurses-devel"
elif command -v apk >/dev/null 2>&1; then
  echo "    Alpine: sudo apk add build-base pkgconf curl-dev ncurses-dev"
elif command -v nix-shell >/dev/null 2>&1; then
  echo "    Nix: nix-shell (uses shell.nix), then rerun this script"
fi

JOBS="$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 4)"
echo "==> make"
make -j"$JOBS"
make check || true

echo
echo "OK: ./cst-agent"
echo "Install: make install PREFIX=\$HOME/.local"
echo "Run it inside a project directory: cst-agent"
echo "  (the first start asks for the provider and its API key and saves them)"