#!/bin/bash

# Cloudflare Tunnel Setup Script for PMFlow

set -e

echo "🚀 Starting Cloudflare Tunnel Setup..."

# Check if cloudflared is installed
if ! command -v cloudflared &> /dev/null; then
    echo "❌ cloudflared is not installed. Please install it first:"
    echo "   brew install cloudflared"
    exit 1
fi

# Ask for configuration
read -p "Enter your domain name (e.g., dev.pmflow.com): " DOMAIN_NAME
read -p "Enter a name for your tunnel (e.g., pmflow-dev): " TUNNEL_NAME

if [ -z "$DOMAIN_NAME" ] || [ -z "$TUNNEL_NAME" ]; then
    echo "❌ Domain name and tunnel name are required."
    exit 1
fi

echo "Checking authentication..."
# Check if cert.pem exists in default location
if [ ! -f "$HOME/.cloudflared/cert.pem" ]; then
    echo "⚠️  You need to login to Cloudflare first."
    cloudflared tunnel login
fi

echo "Creating tunnel '$TUNNEL_NAME'..."
# Check if tunnel exists, if not create it
if ! cloudflared tunnel list | grep -q "$TUNNEL_NAME"; then
    cloudflared tunnel create "$TUNNEL_NAME"
else
    echo "ℹ️  Tunnel '$TUNNEL_NAME' already exists."
fi

echo "Routing DNS..."
# Route DNS
cloudflared tunnel route dns "$TUNNEL_NAME" "$DOMAIN_NAME"

# Get Tunnel ID
TUNNEL_ID=$(cloudflared tunnel list | grep "$TUNNEL_NAME" | awk '{print $1}')

if [ -z "$TUNNEL_ID" ]; then
    echo "❌ Could not find Tunnel ID for '$TUNNEL_NAME'"
    exit 1
fi

echo "Generating config file..."
# Create config.yml
cat > devops/tunnel/config.yml <<EOF
tunnel: $TUNNEL_ID
credentials-file: $HOME/.cloudflared/$TUNNEL_ID.json

ingress:
  - hostname: $DOMAIN_NAME
    service: http://localhost:5174
  - service: http_status:404
EOF

echo "✅ Tunnel configuration created at devops/tunnel/config.yml"

# Update .env file in frontend
ENV_FILE="frontend/.env"
if [ ! -f "$ENV_FILE" ]; then
    touch "$ENV_FILE"
fi

# Update or add VITE_APP_DOMAIN
if grep -q "VITE_APP_DOMAIN=" "$ENV_FILE"; then
    # Use sed based on OS (macOS vs Linux)
    if [[ "$OSTYPE" == "darwin"* ]]; then
        sed -i '' "s|VITE_APP_DOMAIN=.*|VITE_APP_DOMAIN=$DOMAIN_NAME|" "$ENV_FILE"
    else
        sed -i "s|VITE_APP_DOMAIN=.*|VITE_APP_DOMAIN=$DOMAIN_NAME|" "$ENV_FILE"
    fi
else
    echo "VITE_APP_DOMAIN=$DOMAIN_NAME" >> "$ENV_FILE"
fi

echo "✅ Updated $ENV_FILE with VITE_APP_DOMAIN=$DOMAIN_NAME"

echo "🎉 Setup complete! You can now run the tunnel with:"
echo "   cloudflared tunnel run --config devops/tunnel/config.yml $TUNNEL_NAME"