#!/bin/bash
# System Health Monitor - per individuare cause di crash

LOG_FILE="$HOME/system_health_$(date +%Y%m%d_%H%M%S).log"

echo "========================================"
echo "System Health Monitoring Started"
echo "Log file: $LOG_FILE"
echo "Press Ctrl+C to stop"
echo "========================================"
echo ""

# Header del log
{
    echo "System Health Monitor - Started at $(date)"
    echo "=========================================="
    echo ""
} > "$LOG_FILE"

# Funzione per loggare
log_status() {
    TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')

    # Temperature
    TEMPS=$(sensors 2>/dev/null | grep -E "Core|Package" | head -5)

    # Memory
    MEM=$(free -h | grep "Mem:")

    # Load average
    LOAD=$(uptime | awk -F'load average:' '{print $2}')

    # EDAC errors
    CE=$(cat /sys/devices/system/edac/mc/mc0/ce_count 2>/dev/null || echo "N/A")
    UE=$(cat /sys/devices/system/edac/mc/mc0/ue_count 2>/dev/null || echo "N/A")

    # Top CPU processes
    TOP_CPU=$(ps aux --sort=-%cpu | head -6 | tail -5 | awk '{printf "%s(%s%%) ", $11, $3}')

    # Top MEM processes
    TOP_MEM=$(ps aux --sort=-%mem | head -6 | tail -5 | awk '{printf "%s(%s%%) ", $11, $4}')

    {
        echo "[$TIMESTAMP]"
        echo "  Temperatures:"
        echo "$TEMPS" | sed 's/^/    /'
        echo "  Memory: $MEM"
        echo "  Load Average:$LOAD"
        echo "  EDAC Errors: CE=$CE UE=$UE"
        echo "  Top CPU: $TOP_CPU"
        echo "  Top MEM: $TOP_MEM"
        echo ""
    } >> "$LOG_FILE"

    # Output su schermo (più compatto)
    MAX_TEMP=$(echo "$TEMPS" | grep -oP '\+\K[0-9]+' | sort -nr | head -1)
    echo "[$TIMESTAMP] Temp: ${MAX_TEMP}°C | Load:$LOAD | Err: CE=$CE UE=$UE"

    # Allarme se temperatura troppo alta
    if [ "$MAX_TEMP" -gt 85 ]; then
        echo "⚠️  WARNING: Temperature over 85°C!"
        notify-send -u critical "System Overheat" "CPU Temperature: ${MAX_TEMP}°C" 2>/dev/null
    fi

    # Allarme se errori memoria
    if [ "$CE" != "0" ] || [ "$UE" != "0" ]; then
        echo "⚠️  WARNING: Memory errors detected! CE=$CE UE=$UE"
        notify-send -u critical "Memory Errors" "Correctable: $CE, Uncorrectable: $UE" 2>/dev/null
    fi
}

# Loop principale - campiona ogni 5 secondi
while true; do
    log_status
    sleep 5
done