#!/bin/bash

# UrNetwork Stats Dashboard - Installation Script v2.1
# This script automates the installation process

set -e  # Exit on error

echo "========================================="
echo "UrNetwork Stats Dashboard v2.1"
echo "Installation Script"
echo "========================================="
echo ""

# Check Python version
echo "[1/6] Checking Python version..."
if ! command -v python3 &> /dev/null; then
    echo "❌ Python 3 is not installed!"
    echo "Please install Python 3.8+ and try again."
    exit 1
fi

PYTHON_VERSION=$(python3 -c 'import sys; print(".".join(map(str, sys.version_info[:2])))')
echo "✅ Python $PYTHON_VERSION found"
echo ""

# Check pip
echo "[2/6] Checking pip..."
if ! command -v pip3 &> /dev/null; then
    echo "❌ pip3 is not installed!"
    echo "Please install pip3 and try again."
    exit 1
fi
echo "✅ pip3 found"
echo ""

# Install dependencies
echo "[3/6] Installing dependencies..."
echo "This may take a few minutes..."
pip3 install -r requirements.txt
echo "✅ Dependencies installed"
echo ""

# Create necessary directories
echo "[4/6] Creating directories..."
mkdir -p instance
echo "✅ Directories created"
echo ""

# Check if already installed
echo "[5/6] Checking existing installation..."
if [ -f ".env" ]; then
    echo "⚠️  Found existing .env file"
    read -p "Do you want to keep it? (y/n): " keep_env
    if [ "$keep_env" != "y" ]; then
        mv .env .env.backup
        echo "✅ Backed up to .env.backup"
    else
        echo "✅ Keeping existing configuration"
    fi
fi

if [ -f "instance/transfer_stats.db" ]; then
    echo "⚠️  Found existing database"
    read -p "Do you want to keep it? (y/n): " keep_db
    if [ "$keep_db" != "y" ]; then
        mv instance/transfer_stats.db instance/transfer_stats.db.backup
        echo "✅ Backed up to transfer_stats.db.backup"
    else
        echo "✅ Keeping existing database"
    fi
fi
echo ""

# Final instructions
echo "[6/6] Installation complete!"
echo ""
echo "========================================="
echo "🎉 Ready to start!"
echo "========================================="
echo ""
echo "To run the dashboard:"
echo "  python3 main.py"
echo ""
echo "Then open your browser to:"
echo "  http://localhost:90"
echo ""
echo "On first run, you will:"
echo "  1. Set your admin password"
echo "  2. Add your UrNetwork accounts"
echo ""
echo "For production deployment with Gunicorn:"
echo "  gunicorn --bind 0.0.0.0:90 --workers 4 main:app"
echo ""
echo "For systemd service setup, see README.md"
echo ""
echo "📖 Documentation:"
echo "  - README.md - Full documentation"
echo "  - QUICKSTART.md - Quick start guide"
echo "  - WEBHOOK_GUIDE.md - Webhook examples"
echo ""
echo "Need help? Check the docs or create an issue!"
echo "========================================="