#!/usr/bin/env bash
set -e

envFile=Docker/.env
envExample=Docker/env.example

echo "Checking Docker installation..."
if ! command -v docker >/dev/null 2>&1; then
    echo "Docker not found. Install Docker? [y/N]"
    read -r install_docker
    if [[ "$install_docker" =~ ^[Yy]$ ]]; then
        curl -fsSL https://get.docker.com | sh
    else
        echo "Docker is required. Exiting."
        exit 1
    fi
else
    echo "Docker is already installed."
fi

echo "Checking Docker Compose..."
if ! docker compose version >/dev/null 2>&1; then
    echo "Docker Compose plugin missing. You may need to update Docker."
    exit 1
fi

echo "Preparing .env file..."
if [ ! -f $envFile ]; then
    if [ -f $envExample ]; then
        echo ".env not found. Creating interactively from .env.example."
        > $envFile

        while IFS="=" read -r key val; do
            [[ "$key" =~ ^#.*$ || -z "$key" ]] && continue
            default_value=$(echo "$val" | sed 's/"//g')
            printf "Value for $key (default: $default_value): "
            read -r user_value < /dev/tty
            if [ -z "$user_value" ]; then
                echo "$key=$default_value" >> $envFile
            else
                echo "$key=$user_value" >> $envFile
            fi
        done < $envExample

        echo ".env created."
    else
        echo "No .env or .env.example found."
        echo "Creating an empty .env file for manual editing."
        touch $envFile
    fi
else
    echo "Using existing .env. (found at $envFile)"
fi

echo "Start containers with docker compose up -d? [y/N]"
read -r start_containers
if [[ "$start_containers" =~ ^[Yy]$ ]]; then
    docker compose up -d
    echo "Containers started."
else
    echo "You can start them manually with: docker compose up -d"
fi