linux_setup

#!/bin/bash

echo "===> Running setup for Linux..."

# Step 1: Check and install rbenv and Ruby Version 2.7.6
echo "Checking Ruby version..."
required_ruby_version="2.7.6"
current_ruby_version=$(ruby -v | cut -d " " -f 2 | cut -d "p" -f 1)
if [ "$current_ruby_version" = "$required_ruby_version" ]; then
    echo "Required Ruby version is already installed"
    return 0
else
    echo "Ruby is not found or using the wrong version"
    return 1
fi

if [ $? -eq 1 ]; then
    echo "===> Installing rbenv and Ruby 2.7.6..."

    sudo apt-get update

    # Add rbenv init and path to .bashrc if they're not already there
    source ~/.bashrc
    if ! command -v bundle &>/dev/null; then
        echo "Ruby is not installed, installing Rbenv..."
        sudo apt install rbenv git curl -y
        mkdir -p "$(rbenv root)"/plugins
        git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
        rbenv install 2.7.6

        echo "Bundle is not installed, adding shims and rbenv init to bashrc..."
        echo 'export PATH="$PATH:$HOME/.rbenv/shims"' >> ~/.bashrc
        source ~/.bashrc
        rbenv init
        echo "===> Running RBENV Doctor to check the installation..."
        curl -fsSL https://github.com/rbenv/rbenv-installer/raw/main/bin/rbenv-doctor | bash
        sudo apt-get install pkg-config
        sudo apt-get install libpq-dev
        sudo apt-get install imagemagick libmagickwand-dev
    else
        echo "Bundle has been installed."
    fi

    # Enable Ruby version
    rbenv global 2.7.6 && rbenv rehash

    # Check ruby version
    echo "Checking Ruby version once more time..."
    wrong_ruby_version
    if [ $? -eq 1 ]; then
        echo "Ruby has been installed!"
    else
        echo "UNEXPECTED ERROR: RUBY INSTALLATION FAILED"
    fi
else
    echo "Ruby version is correct!"
fi

# Step 2: Install Bundler and bundle install
echo "===> Installing Bundler and Bundle Install..."
bundle install

# Step 3: Install PostgreSQL and create user
echo "===> Installing PostgreSQL..."
sudo apt-get update
# Check if PostgreSQL is installed
which psql > /dev/null 2>&1
if [ $? -ne 0 ]; then
    # PostgreSQL not installed, proceed with installation
    echo "===> Installing PostgreSQL..."
    sudo apt-get update
    sudo apt-get install postgresql postgresql-contrib libpq-dev -y
else
    echo "===> PostgreSQL is already installed."
fi
# Check if user exists, if not, create it
if sudo -u postgres psql -tAc "SELECT 1 FROM pg_roles WHERE rolname='$USER'" | grep -q 1; then
    echo "===> User $USER already exists, updating password..."
    sudo -u postgres psql -c "ALTER USER $USER WITH PASSWORD '$USER';"
else
    echo "===> Creating user $USER..."
    sudo -u postgres psql -c "CREATE USER $USER WITH PASSWORD '$USER';"
fi
# Check for SUPERUSER permission
if sudo -u postgres psql -tAc "SELECT 1 FROM pg_roles WHERE rolname='$USER' AND rolsuper;" | grep -q 1; then
    echo "===> User $USER already has SUPERUSER permission."
else
    echo "===> Granting SUPERUSER permission to $USER..."
    sudo -u postgres psql -c "ALTER USER $USER WITH SUPERUSER;"
fi
# Check for CREATEDB permission
if sudo -u postgres psql -tAc "SELECT 1 FROM pg_roles WHERE rolname='$USER' AND rolcreatedb;" | grep -q 1; then
    echo "===> User $USER already has CREATEDB permission."
else
    echo "===> Granting CREATEDB permission to $USER..."
    sudo -u postgres psql -c "ALTER USER $USER WITH CREATEDB;"
fi
# Create .env file with the database username and password
# Check if .env file exists
if [ ! -f .env ]; then
    touch .env
fi
# Check if DATABASE_USERNAME exists in .env
grep -q "^DATABASE_USERNAME=" .env
if [ $? -ne 0 ]; then
    echo "DATABASE_USERNAME=$USER" >> .env
fi
# Check if DATABASE_PASSWORD exists in .env
grep -q "^DATABASE_PASSWORD=" .env
if [ $? -ne 0 ]; then
    echo "DATABASE_PASSWORD=$USER" >> .env
fi
echo "===> PostgreSQL setup complete!"

# Step 4: Install Redis
# Check if Redis is installed
which redis-server > /dev/null 2>&1
if [ $? -ne 0 ]; then
    # Redis not installed, proceed with installation
    echo "===> Installing Redis..."
    # Add the Redis GPG key
    curl -fsSL https://packages.redis.io/gpg | sudo gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
    # Add the Redis repository
    echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/redis.list > /dev/null
    # Update and install Redis
    sudo apt-get install redis -y
else
    echo "===> Redis is already installed."
fi
echo "===> Setup complete!"

# Step 5: Make sure Redis & PostgreSQL service is running
echo "Starting PostgreSQL..."
sudo service postgresql start
echo "Starting Redis..."
sudo service redis-server start
return 1