#!/bin/bash
LOG_DIR="/data/logs"
LOG_FILE="$LOG_DIR/memory-history.log"
mkdir -p "$LOG_DIR"

while true; do
    # Rotate if over 10MB
    if [ -f "$LOG_FILE" ]; then
        SIZE=$(wc -c < "$LOG_FILE" 2>/dev/null || echo 0)
        if [ "$SIZE" -gt 10485760 ]; then
            mv "$LOG_FILE" "$LOG_FILE.old"
        fi
    fi

    echo "========== $(date +%Y-%m-%d\ %H:%M:%S) ==========" >> "$LOG_FILE"
    echo "--- MEMORY ---" >> "$LOG_FILE"
    free -m >> "$LOG_FILE"
    echo "--- TOP MEMORY PROCESSES ---" >> "$LOG_FILE"
    ps -eo pid,rss,comm --sort=-rss | head -12 >> "$LOG_FILE"
    echo "" >> "$LOG_FILE"

    sleep 600
done