#!/bin/bash

echo "🔄 Baixando e executando script de configuração do Debian no WSL"
echo ""

# Instale dependências básicas se ainda não estiverem instaladas
apt update && apt upgrade -y
apt install -y ca-certificates gnupg lsb-release software-properties-common wget git unzip apt-transport-https

# Função para verificar se está sendo executado no WSL
check_wsl() {
    if ! grep -qi microsoft /proc/version; then
        echo "❌ Este script deve ser executado no WSL (Windows Subsystem for Linux)."
        exit 1
    fi
}

# Atualização inicial
update_system() {
    echo "🔄 Atualizando sistema..."
    sudo apt update && sudo apt upgrade -y
}

# Instalar Docker
install_docker() {
    echo "🐋 Instalando Docker..."

    sudo mkdir -p /etc/apt/keyrings
    curl -fsSL https://download.docker.com/linux/debian/gpg  | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

    echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

    sudo apt update
    sudo apt install -y docker-ce docker-ce-cli containerd.io
}

# Instalar Docker Compose
install_docker_compose() {
    echo "🐋 Instalando Docker Compose..."

    # Obter última versão
    DOCKER_COMPOSE_VERSION=$(curl -s https://api.github.com/repos/docker/compose/releases/latest  | grep 'tag_name' | cut -d '"' -f 4)

    # Baixar e instalar
    sudo curl -L "https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/docker-compose-$(uname  -s)-$(uname -m)" -o /usr/local/bin/docker-compose
    sudo chmod +x /usr/local/bin/docker-compose

    # Opcional: iniciar e habilitar serviço do Docker (requer systemd)
    if [ -f /lib/systemd/system/docker.service ]; then
        sudo systemctl enable docker
        sudo systemctl start docker
        sudo usermod -aG docker root
    else
        echo "⚠️ Sistema sem systemd. Inicie manualmente com: sudo dockerd &"
    fi
}

# Instalar Node.js LTS
install_nodejs() {
    echo "🟢 Instalando Node.js (LTS)..."
    curl -fsSL https://deb.nodesource.com/setup_22.x  | sudo -E bash -
    sudo apt install -y nodejs
}

# Instalar PHP e Composer
install_php_composer() {
    echo "🔵 Instalando PHP necessário para o Composer..."

    sudo apt install -y php php-cli php-mbstring unzip

    echo "🎼 Instalando Composer..."

    # Usar link alternativo e verificar hash manualmente
    COMPOSER_URL="https://getcomposer.org/composer.phar" 
    EXPECTED_HASH=$(curl -sS https://composer.github.io/stable.sig) 

    # Baixar Composer
    sudo curl -fsSL $COMPOSER_URL -o composer.phar

    # Mover e tornar executável
    sudo mv composer.phar /usr/local/bin/composer
    sudo chmod +x /usr/local/bin/composer

    # Permitir uso como root (opcional, apenas em ambientes seguros)
    export COMPOSER_ALLOW_SUPERUSER=1
}

# Configurar wsl.conf para iniciar como root
configure_wsl_conf() {
    echo "⚙️ Configurando /etc/wsl.conf para iniciar como root..."
    echo "[user]" | sudo tee /etc/wsl.conf > /dev/null
    echo "default=root" | sudo tee -a /etc/wsl.conf > /dev/null
}

# Mostrar versões instaladas
show_versions() {
    echo ""
    echo "📊 Resumo das versões instaladas:"
    echo "----------------------------------"
    echo "Docker:" 
    docker --version
    echo "Docker Compose:"
    docker-compose --version || echo "docker-compose NÃO INSTALADO OU NÃO DISPONÍVEL"
    echo "Node.js LTS:"
    node --version
    npm --version
    echo "PHP:"
    php --version | head -n 1
    echo "Composer:"
    composer --version | head -n 1
    echo "----------------------------------"
    echo ""
}

# Mensagem final com créditos
show_credits() {

    echo "📚 Mais em: https://garapa.in/scripts/debian-wsl-setup/" 
}

# Executar funções
check_wsl
update_system
install_docker
install_docker_compose
install_nodejs
install_php_composer
configure_wsl_conf
show_versions
show_credits