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

echo "📦 Setting up C++ dependencies"
echo "=============================="

OS="$(uname -s)"

case "${OS}" in
    Linux*)
        if command -v apt &> /dev/null; then
            echo "Installing via apt..."
            sudo apt update
            sudo apt install -y build-essential cmake ninja-build clang-format
        elif command -v dnf &> /dev/null; then
            echo "Installing via dnf..."
            sudo dnf install -y gcc-c++ cmake ninja-build clang-tools-extra
        elif command -v pacman &> /dev/null; then
            echo "Installing via pacman..."
            sudo pacman -S --needed base-devel cmake ninja clang
        fi
        ;;
    Darwin*)
        if command -v brew &> /dev/null; then
            echo "Installing via Homebrew..."
            brew install cmake ninja
        else
            echo "⚠ Homebrew not found. Install from https://brew.sh"
        fi
        ;;
    MINGW*|MSYS*|CYGWIN*)
        echo "Windows detected. Ensure you have:"
        echo "  - Visual Studio 2022 with C++ workload, OR"
        echo "  - MSYS2: pacman -S mingw-w64-x86_64-toolchain cmake"
        ;;
    *)
        echo "Unknown OS: ${OS}"
        ;;
esac

echo ""
echo "✅ Dependencies setup complete"