install

#!/bin/bash

# ANSI color codes for coloring the progress bar and messages
GREEN='\033[0;32m'
RED='\033[0;31m'
NC='\033[0m'  # No color

# Define the version of your Caesar cipher program
CAESAR_VERSION="caesar, version 1.0"

# Display the welcome message
echo -e "${GREEN}Welcome to the Caesar cipher program installer!${NC}"

# Check if Caesar cipher is already installed
if ! command -v caesar &>/dev/null; then
    # Caesar cipher is not installed, proceed with installation
    echo -e "${GREEN}Caesar cipher is not installed. Proceeding with installation...${NC}"
else
    INSTALLED_VERSION=$(caesar --version) 2>/dev/null 
    if [[ "$INSTALLED_VERSION" != "$CAESAR_VERSION" ]] || [[ "$1" == "--force" ]]; then
        # Step 1: Install or upgrade Caesar cipher
        echo -e "${GREEN}Step 1: Installing/upgrading Caesar cipher...${NC}"
    else
        echo -e "${GREEN}$CAESAR_VERSION or higher is already installed.${NC}"
        exit 0
    fi
fi

# Function to display a text-based progress bar
progress_bar() {
    local duration="$1"
    local width=50
    local fill="#"
    local increment=0.02  # Increment for progress bar

    printf "Progress: [${GREEN}"
    for ((i = 0; i < width; i++)); do
        printf "%s" "$fill"
        sleep "$increment"
    done
    printf "${NC}] ${GREEN}100%%${NC}\n"
}

# Check if Python 3 is installed
if ! command -v python3 &>/dev/null; then
    echo -e "${RED}Python 3 is not installed. Installing...${NC}"
    sudo apt-get update
    sudo apt-get install -y python3
fi

# Check if pip for Python 3 is installed
if ! command -v pip3 &>/dev/null; then
    echo -e "${RED}pip for Python 3 is not installed. Installing...${NC}"
    sudo apt-get install -y python3-pip
fi

# Check if Python 3 venv is installed
if ! command -v python3 -m venv &>/dev/null; then
    echo -e "${RED}Python 3 venv is not installed. Installing...${NC}"
    sudo apt-get install -y python3-venv
fi

# Create a virtual environment
echo -e "${GREEN}Creating a virtual environment...${NC}"
python3 -m venv venv
source venv/bin/activate

# Install requirements
echo -e "${GREEN}Installing requirements...${NC}"
pip install -r cmd-reqs.txt &>/dev/null

# Check if Caesar cipher is already installed and at the required version
INSTALLED_VERSION=$(caesar --version)
if [[ "$INSTALLED_VERSION" != "$CAESAR_VERSION" ]] || [[ "$1" == "--force" ]]; then
    # Step 2: Install or upgrade Caesar cipher
    echo -e "${GREEN}Step 2: Installing/upgrading Caesar cipher...${NC}"
    pip install --upgrade caesar==$CAESAR_VERSION &>/dev/null
else
    echo -e "${GREEN}$CAESAR_VERSION or higher is already installed.${NC}"
fi

# Step 3: Create the executable
echo -e "${GREEN}Step 3: Creating the executable...${NC}"
pyinstaller --onefile caesar.py &>/dev/null

# Step 4: Move the executable to a system path (e.g., /usr/local/bin/)
echo -e "${GREEN}Step 4: Moving the executable to /usr/local/bin/...${NC}"
sudo mv dist/caesar /usr/local/bin/ &>/dev/null

# Step 5: Clean up the build files
echo -e "${GREEN}Step 5: Cleaning up build files...${NC}"
rm -rf build/ dist/ __pycache__ caesar.spec &>/dev/null

# Deactivate and delete the virtual environment
echo -e "${GREEN}Deactivating and deleting the virtual environment...${NC}"
deactivate
rm -rf venv

# Display completion message
echo -e "${GREEN}Build and installation completed successfully.${NC}"

# Call the progress_bar function with a duration of 1 second to indicate completion
progress_bar 1