#!/bin/bash
# ============================================================================
# Flutter Build Environment Checker
# ============================================================================

echo "========================================"
echo "  FLUTTER BUILD CHECKER"
echo "========================================"
echo ""

# Check Flutter installation
if ! command -v flutter &> /dev/null; then
    echo "[ERROR] Flutter is NOT installed!"
    echo ""
    echo "To install Flutter:"
    echo "  Linux: https://docs.flutter.dev/get-started/install/linux"
    echo "  Windows: https://docs.flutter.dev/get-started/install/windows"
    echo "  macOS: https://docs.flutter.dev/get-started/install/macos"
    exit 1
fi

echo "[✓] Flutter is installed"
echo ""

# Show Flutter version
echo "Flutter version:"
flutter --version
echo ""

# Check Flutter doctor
echo "Flutter doctor status:"
flutter doctor
echo ""

# Check if we can build for current platform
OS="$(uname -s)"
case "$OS" in
  Linux*)
    echo "Checking Linux build capability..."
    flutter build linux --help > /dev/null 2>&1
    if [ $? -eq 0 ]; then
        echo "[✓] Linux build is supported"
        echo ""
        echo "To build the Windows client:"
        echo "  ./BUILD_CLIENT_LINUX.sh"
    else
        echo "[!] Linux build is NOT available"
        echo "Install dependencies:"
        echo "  sudo apt install clang cmake ninja-build pkg-config libgtk-3-dev"
    fi
    ;;
  Darwin*)
    echo "Checking macOS build capability..."
    flutter build macos --help > /dev/null 2>&1
    if [ $? -eq 0 ]; then
        echo "[✓] macOS build is supported"
    else
        echo "[!] macOS build is NOT available (install Xcode)"
    fi
    ;;
  MINGW*|MSYS*|CYGWIN*)
    echo "Windows detected via Git Bash/MSYS"
    flutter build windows --help > /dev/null 2>&1
    if [ $? -eq 0 ]; then
        echo "[✓] Windows build is supported"
        echo ""
        echo "To build the Windows client:"
        echo "  BUILD_CLIENT_WINDOWS.bat"
    else
        echo "[!] Windows build is NOT available (install Visual Studio)"
    fi
    ;;
  *)
    echo "Unknown OS: $OS"
    ;;
esac

echo ""
echo "========================================"
echo "  CHECK COMPLETE"
echo "========================================"