#!/bin/bash

CONFIG_FILE="/etc/mhvtl/device.conf"

if [ ! -f "$CONFIG_FILE" ]; then
    echo "Error: Configuration file not found: $CONFIG_FILE"
    exit 1
fi

echo "Starting mhvtl Virtual Tape Library..."

rm -f /var/lock/mhvtl/mhvtl* 2>/dev/null || true

modprobe mhvtl 2>/dev/null || echo "Note: Running in userspace mode (kernel module not available)"

sleep 1

DRIVE_NUMS=$(grep "^Drive:" "$CONFIG_FILE" | awk '{print $2}' | sort -u)

for drive in $DRIVE_NUMS; do
    if ! pgrep -f "vtltape.*-q $drive" > /dev/null; then
        echo "Starting vtltape for drive $drive..."
        /usr/bin/vtltape -q $drive > /dev/null 2>&1 &
    else
        echo "vtltape for drive $drive is already running"
    fi
done

sleep 2

LIBRARY_NUMS=$(grep "^Library:" "$CONFIG_FILE" | awk '{print $2}' | sort -u)

for library in $LIBRARY_NUMS; do
    if ! pgrep -f "vtllibrary.*$library" > /dev/null; then
        echo "Starting vtllibrary for library $library..."
        /usr/bin/vtllibrary $library > /dev/null 2>&1 &
    else
        echo "vtllibrary for library $library is already running"
    fi
done

RUNNING_DRIVES=$(pgrep -f "vtltape" | wc -l)
RUNNING_LIBS=$(pgrep -f "vtllibrary" | wc -l)

echo "mhvtl started: $RUNNING_DRIVES drives, $RUNNING_LIBS libraries"
exit 0