#!/usr/bin/env bash
# Deploy Frontend Container on Proxmox VE

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
CONFIG_FILE="$SCRIPT_DIR/config/dapp.conf"

# Load configuration
if [[ -f "$CONFIG_FILE" ]]; then
    source "$CONFIG_FILE"
fi

# Default values
VMID="${VMID_FRONTEND:-3000}"
HOSTNAME="${HOSTNAME:-solace-frontend}"
IP_ADDRESS="${FRONTEND_IP:-192.168.11.60}"
MEMORY="${FRONTEND_MEMORY:-2048}"
CORES="${FRONTEND_CORES:-2}"
DISK="${FRONTEND_DISK:-20}"

# Application configuration
FRONTEND_PORT="${FRONTEND_PORT:-3000}"
PROJECT_ROOT="${PROJECT_ROOT:-/home/intlc/projects/solace-bg-dubai}"

echo "=========================================="
echo "Deploying Frontend Container"
echo "=========================================="
echo "VMID: $VMID"
echo "Hostname: $HOSTNAME"
echo "IP: $IP_ADDRESS"
echo "Memory: ${MEMORY}MB"
echo "Cores: $CORES"
echo "Disk: ${DISK}GB"
echo ""

# Check if running on Proxmox host
if ! command -v pct &> /dev/null; then
    echo "ERROR: This script must be run on Proxmox host (pct command not found)"
    exit 1
fi

# Check if container already exists
if pct list | grep -q "^\s*$VMID\s"; then
    echo "Container $VMID already exists. Skipping creation."
    echo "To recreate, delete the container first: pct destroy $VMID"
else
    echo "Creating container $VMID..."
    pct create "$VMID" \
        "${CONTAINER_OS_TEMPLATE:-local:vztmpl/ubuntu-22.04-standard_22.04-1_amd64.tar.zst}" \
        --storage "${PROXMOX_STORAGE:-local-lvm}" \
        --hostname "$HOSTNAME" \
        --memory "$MEMORY" \
        --cores "$CORES" \
        --rootfs "${PROXMOX_STORAGE:-local-lvm}:${DISK}" \
        --net0 "bridge=${PROXMOX_BRIDGE:-vmbr0},name=eth0,ip=${IP_ADDRESS}/24,gw=${GATEWAY:-192.168.11.1},type=veth" \
        --unprivileged "${CONTAINER_UNPRIVILEGED:-1}" \
        --swap "${CONTAINER_SWAP:-512}" \
        --onboot "${CONTAINER_ONBOOT:-1}" \
        --timezone "${CONTAINER_TIMEZONE:-UTC}" \
        --features nesting=1,keyctl=1
    
    echo "Container $VMID created successfully"
fi

# Start container
echo "Starting container $VMID..."
pct start "$VMID" || true

# Wait for container to be ready
echo "Waiting for container to be ready..."
sleep 5
for i in {1..30}; do
    if pct exec "$VMID" -- test -f /etc/os-release 2>/dev/null; then
        break
    fi
    sleep 1
done

# Install Node.js and pnpm
echo "Installing Node.js and pnpm..."
pct exec "$VMID" -- bash -c "
    export DEBIAN_FRONTEND=noninteractive
    apt-get update
    apt-get install -y curl
    
    # Install Node.js 18
    curl -fsSL https://deb.nodesource.com/setup_18.x | bash -
    apt-get install -y nodejs
    
    # Install pnpm
    npm install -g pnpm
"

# Create application directory
echo "Setting up application directory..."
pct exec "$VMID" -- bash -c "
    mkdir -p /opt/solace-frontend
    chown -R 1000:1000 /opt/solace-frontend
"

# Copy frontend code to container
echo "Copying frontend code to container..."
if [[ -d "$PROJECT_ROOT/frontend" ]]; then
    # Remove existing directory if it exists
    pct exec "$VMID" -- bash -c "rm -rf /opt/solace-frontend/* /opt/solace-frontend/.* 2>/dev/null || true"
    # Copy files using tar for better directory handling
    cd "$PROJECT_ROOT"
    tar czf - frontend | pct exec "$VMID" -- bash -c "cd /opt && tar xzf - && mv frontend/* solace-frontend/ && mv frontend/.* solace-frontend/ 2>/dev/null || true && rmdir frontend 2>/dev/null || true"
else
    echo "WARNING: Frontend directory not found at $PROJECT_ROOT/frontend"
    echo "You will need to copy the code manually or clone the repository"
fi

# Install dependencies and build
echo "Installing dependencies and building..."
pct exec "$VMID" -- bash -c "
    cd /opt/solace-frontend
    export NODE_ENV=production
    pnpm install --frozen-lockfile
    pnpm run build
"

# Create systemd service
echo "Creating systemd service..."
pct exec "$VMID" -- bash -c "
    cat > /etc/systemd/system/solace-frontend.service <<'EOF'
[Unit]
Description=Solace Treasury Frontend
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=/opt/solace-frontend
Environment=NODE_ENV=production
EnvironmentFile=/opt/solace-frontend/.env.production
ExecStart=/usr/bin/node /opt/solace-frontend/node_modules/.bin/next start
Restart=always
RestartSec=10
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target
EOF
    systemctl daemon-reload
    systemctl enable solace-frontend
"

# Create log directory
pct exec "$VMID" -- bash -c "
    mkdir -p /var/log/nextjs
    chmod 755 /var/log/nextjs
"

echo ""
echo "=========================================="
echo "Frontend Container Deployment Complete"
echo "=========================================="
echo "Container: $VMID ($HOSTNAME)"
echo "IP Address: $IP_ADDRESS"
echo "Port: $FRONTEND_PORT"
echo ""
echo "Next steps:"
echo "1. Copy frontend/.env.production to container: pct push $VMID frontend/.env.production /opt/solace-frontend/.env.production"
echo "2. Update .env.production with Chain 138 RPC URL and contract addresses"
echo "3. Start the service: pct exec $VMID -- systemctl start solace-frontend"
echo "4. Check status: pct exec $VMID -- systemctl status solace-frontend"