#!/bin/bash
SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

OS="unknown"
if [ "$(uname)" == "Linux" ]; then
    if [ ! "$(grep -Ei 'debian|buntu|mint' /etc/*release)" ]; then
        echo Not a supported Linux
        exit 1
    fi
    OS="linux"
elif [ "$(uname)" == "Darwin" ]; then
    OS="macos"
fi
if [ "$OS" == "unknown" ]; then
    echo "Not a supported operating system for this script"
    exit 1
fi

# ensure flutter is installed
if command -v flutter &> /dev/null; then 
    echo '[X] Flutter is available in the path'
else
    echo 'Flutter is not available in the path, install Flutter from here: https://docs.flutter.dev/get-started/install'
    exit 1
fi

# ensure dart is installed
if command -v dart &> /dev/null; then 
    echo '[X] Dart is available in the path'
else
    echo 'Dart is not available in the path, check your environment variables and that Flutter is installed correctly'
    exit 1
fi

# ensure cargo is installed
if command -v cargo &> /dev/null; then 
    echo '[X] Cargo is available in the path'
else
    echo 'Cargo is not available in the path, ensure Rust is installed correctly'
    exit 1
fi

# install cargo cbindgen
cargo install cbindgen

# install dart ffigen
dart pub global activate ffigen

# install flutter_rust_bridge_codegen
cargo install flutter_rust_bridge_codegen

# install just
cargo install just

# platform specific stuff
if [ "$OS" == "linux" ]; then
    # ensure packages are installed
    echo "Must sudo to root to install LLVM package:"
    sudo apt-get install libclang-dev
    
    # ensure platforms are enabled in flutter
    flutter config --enable-linux-desktop --enable-android

elif [ "$OS" == "macos" ]; then

    # ensure x86_64 homebrew is installed
    if [ -f /usr/local/bin/brew ] &> /dev/null; then 
        echo '[X] x86_64 homebrew is available'
    else
        echo 'x86_64 homebrew is not available, run this:'
        echo 'arch -x86_64 zsh'
        echo '/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"'
        exit 1
    fi

    # ensure packages are installed
    if [ "$BREW_USER" == "" ]; then
        BREW_USER=`ls -lad /usr/local/bin/. | cut -d\  -f4`
        echo "Must sudo to homebrew user \"$BREW_USER\" to install LLVM package:"
    fi
    sudo -H -u $BREW_USER arch -x86_64 /usr/local/bin/brew install llvm
    echo "Must sudo to root to install CocoaPods gem:"
    sudo arch -x86_64 gem install ffi
    sudo arch -x86_64 gem install cocoapods

    # ensure platforms are enabled in flutter
    flutter config --enable-macos-desktop --enable-ios --no-enable-android
fi

# turn off analytics
flutter config --no-analytics
dart --disable-analytics

# run flutter doctor
flutter doctor -v