#!/bin/bash

# Helper function to check a command
command_exists() {
  command -v "$1" >/dev/null 2>&1
}

DOCKER_OK=true
COMPOSE_OK=true

# Check for Docker
if ! command_exists docker; then
  DOCKER_OK=false
fi

# Check for Docker Compose (plugin or legacy)
if ! docker compose version >/dev/null 2>&1 && ! command_exists docker-compose; then
  COMPOSE_OK=false
fi

# If either is missing, run install script
if [[ "$DOCKER_OK" = false || "$COMPOSE_OK" = false ]]; then
  echo "Missing required tools. Running installer..."
  git clone https://git.giovanesaggio.com/Selfhosting/docker_setup.git
  ./docker_setup/docker_setup.sh
  rm -r docker_setup
fi

# Parse and prompt for .env variables
ENV_FILE=".env"

if [[ ! -f "$ENV_FILE" ]]; then
  echo "$ENV_FILE not found. Creating a new one."
  touch "$ENV_FILE"
fi

declare -A ENV_VARS

# Load existing env vars
while IFS='=' read -r key value; do
  [[ "$key" =~ ^[A-Z_][A-Z0-9_]*$ ]] || continue
  ENV_VARS["$key"]="$value"
done < "$ENV_FILE"

echo "Configure environment variables (press ENTER to keep current value):"

# Prompt for each variable
for key in "${!ENV_VARS[@]}"; do
  current="${ENV_VARS[$key]}"
  read -p "$key [$current]: " new_value
  if [[ -n "$new_value" ]]; then
    ENV_VARS["$key"]="$new_value"
  fi
done

# Overwrite .env with updated values
> "$ENV_FILE"
for key in "${!ENV_VARS[@]}"; do
  echo "$key=${ENV_VARS[$key]}" >> "$ENV_FILE"
done

# Launch Docker
docker compose up -d