#!/bin/bash
# diagnose-vm-storage.sh
# Script per identificare dove sono i dischi delle VM

VM_ID=${1:-201}

echo "=== VM Storage Diagnostic Tool ==="
echo "VM ID: $VM_ID"
echo ""

# Check se la VM esiste
if ! qm status $VM_ID &>/dev/null; then
    echo "❌ VM $VM_ID does not exist!"
    exit 1
fi

echo "✓ VM $VM_ID exists"
echo ""

# Mostra configurazione completa
echo "📋 VM Configuration:"
qm config $VM_ID
echo ""

# Estrai info disco
echo "💾 Disk Information:"
DISK_LINE=$(qm config $VM_ID | grep -E "^(scsi|ide|virtio|sata)0:")
echo "$DISK_LINE"
echo ""

# Parse disk info
STORAGE=$(echo "$DISK_LINE" | cut -d: -f2 | cut -d, -f1 | xargs)
echo "Storage location: $STORAGE"
echo ""

# Check tipo di storage
if [[ $STORAGE == local-lvm:* ]]; then
    echo "🔍 Storage type: LVM"
    DISK_NAME=$(echo $STORAGE | cut -d: -f2)
    LVM_PATH="/dev/pve/$DISK_NAME"
    
    echo "Expected LVM path: $LVM_PATH"
    
    if [ -e "$LVM_PATH" ]; then
        echo "✓ LVM volume exists"
        lvs | grep vm-$VM_ID
    else
        echo "❌ LVM volume NOT found"
        echo "Available LVM volumes:"
        lvs
    fi
    
elif [[ $STORAGE == local:* ]]; then
    echo "🔍 Storage type: Directory/File"
    DISK_NAME=$(echo $STORAGE | cut -d: -f2)
    FILE_PATH="/var/lib/vz/images/$VM_ID/"
    
    echo "Expected file path: $FILE_PATH"
    
    if [ -d "$FILE_PATH" ]; then
        echo "✓ Directory exists"
        ls -lh "$FILE_PATH"
        
        # Identifica tipo di file
        for FILE in "$FILE_PATH"/*; do
            if [ -f "$FILE" ]; then
                echo ""
                echo "File: $FILE"
                file "$FILE"
                du -h "$FILE"
            fi
        done
    else
        echo "❌ Directory NOT found"
    fi
    
else
    echo "🔍 Unknown storage type: $STORAGE"
    echo ""
    echo "Available storages:"
    pvesm status
fi

echo ""
echo "=== All available storages ==="
pvesm status

echo ""
echo "=== Possible disk locations ==="
echo "Checking common paths..."

# Check LVM
echo "LVM volumes:"
lvs 2>/dev/null | grep -E "vm-?$VM_ID" || echo "  None found"

# Check file-based
echo ""
echo "File-based images:"
ls -lh /var/lib/vz/images/$VM_ID/ 2>/dev/null || echo "  /var/lib/vz/images/$VM_ID/ not found"

# Check other common locations
for DIR in /var/lib/vz/images /mnt/pve/*; do
    if [ -d "$DIR/$VM_ID" ]; then
        echo ""
        echo "Found in: $DIR/$VM_ID/"
        ls -lh "$DIR/$VM_ID/"
    fi
done

echo ""
echo "=== Diagnostic complete ==="