How to raise alerts after a certain time frame from the time stamp of the file name?

#!/bin/bash

files=()
each_row=()
raw_file_names=()
directory=($(ls /home/cloudera/Downloads/20211006/*))
csv_file=(/home/cloudera/Downloads/log_20211006_1.log)
completed="Completed"


for i in "${directory[@]}"
     do
         files+=("$(echo ${i%%.*} | cut -d'/' -f 6)")
     done



while read -r current_line; 
     do
         each_row+=("$(echo "$current_line")")
     done<$csv_file
    
    
each_row=("${each_row[@]:1}")

echo $each_row



for i in "${each_row[@]}"
     do
         raw_file_names+=("$(echo ${i} | cut -d',' -f 1)")
     done


for i in "${each_row[@]}"
     do
         rawfile=("$(echo ${i} | cut -d',' -f 1)") 
             status_of_file=("$(echo ${i} | cut -d',' -f 2)")
         if [[ $status_of_file != "$completed" ]];
     then
         if !(grep -q "$rawfile not Completed!" alerts.txt); then
                 echo "$rawfile not Completed!"
                 echo "$rawfile not Completed!" >> alerts.txt
         fi
     fi
done



missing_rawfile=("$(echo ${files[@]} ${raw_file_names[@]} | tr ' ' '\n' | sort | uniq -u)")



echo "missing: $missing_rawfile"

for i in "${missing_rawfile}"
      do
        if !(grep -q "$missing_rawfile is Missing from the log!" alerts.txt); then
             echo "$missing_rawfile is Missing from the log!"
             echo "$missing_rawfile is Missing from the log!" >> alerts.txt
        fi
done