#!/usr/bin/bash

#set -e

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
LOG_FILE="$SCRIPT_DIR/LTE_LogFileToS3_$(date '+%Y%m%d_%H%M%S').log"


# Lock file to prevent overlapping cron runs
LOCKFILE="/tmp/SyncLTELogFileToS3.lock"
exec 200>$LOCKFILE
flock -n 200 || {
    echo "$(date '+%Y-%m-%d %H:%M:%S')  Another instance is running. Exiting." >> "$LOG_FILE"
    exit 1
}


# -------------------------------------------------------------------
log() {
    echo -e "$(date '+%Y-%m-%d %H:%M:%S')  $1" | tee -a "$LOG_FILE"
}

if [ $# -ne 1 ]; then
    echo "Usage: $0 <operator>"
    exit 1
fi

OPERATOR=$1

##################### INPUTS ####################
#Device_List="0005B951D306"
Device_List=$(find /opt/device/logs/onecell/0005B9 -mindepth 3 -maxdepth 3 -type d -printf "%f\n" | paste -sd,)
ACCOUNT_ID=$(/usr/local/bin/aws sts get-caller-identity --query "Account" --output text)
#REGION=$(/usr/local/bin/aws configure get region)
REGION=ap-southeast-1
MINUTES=15000
#################################################
IFS=',' read -ra devices <<< "$Device_List"
BUCKET=$ACCOUNT_ID-${REGION}-onecell-files  #s3 bucket name


now="$(date +"%T")"
log "Script started at $now"
echo "Account ID: $ACCOUNT_ID" | tee -a $LOG_FILE
echo "Region:     $REGION"     | tee -a $LOG_FILE
echo -e "S3 bucket:  $BUCKET\n"   | tee -a $LOG_FILE

# === Sync window ===
numOfDaysToSync=0
numOfHoursToSync=0
numOfMinutesToSync=${MINUTES}
minutes=$((numOfDaysToSync * 24 * 60 + numOfHoursToSync * 60 + numOfMinutesToSync))
log "Sync window: ${numOfDaysToSync} day(s), ${numOfHoursToSync} hour(s), ${numOfMinutesToSync} minute(s) ->     Total: ${minutes} minutes"


# === Process each device ===
for device in "${devices[@]}"; do
    log "\n"
    log "PROCESSING DEVICE: $device"

    part1=$(echo "$device" | sed 's/^\(......\).*$/\1/')
    part2=$(echo "$device" | sed 's/^\(........\).*$/\1/')
    part3=$(echo "$device" | sed 's/^\(..........\).*$/\1/')

    sourcedir="/opt/device/logs/onecell/$part1/$part2/$part3/$device"
	
    files_to_sync=$(find "$sourcedir" -maxdepth 1 -type f -iname '*_DEBUG_*' -mmin -"${minutes}")

    if [ -z "$files_to_sync" ]; then
            log "No DEBUG files found for $device in the last $minutes minutes."
            continue
    fi

    # Upload each file to s3 bucket
    for FILE in $files_to_sync; do
        BASENAME=$(basename "$FILE")

		# Extract 14-digit timestamp
		TIMESTAMP=$(echo "$BASENAME" | grep -oE '[0-9]{14}')
	
		if [ -z "$TIMESTAMP" ]; then
			log "Skipping file (no timestamp found): $FILE"
			continue
		fi
	
		# Extract YYYYMMDD from timestamp
		DATE=${TIMESTAMP:0:8}
	
		DEST="s3://$BUCKET/onecell/$OPERATOR/LTE/logs/$DATE/"
		log "Copying: $FILE → $DEST\n"
		/usr/local/bin/aws s3 cp "$FILE" "$DEST"
	
		if [ $? -eq 0 ]; then
		log "File copied successfully: $FILE"
		log "Deleting $FILE"
		if rm -f "$FILE"; then
			log "File deleted: $FILE"
		else
			log "WARNING: Unable to delete file: $FILE"
			log "Skipping deletion and continuing..."
		fi
		else
		log "ERROR: Failed to copy file to S3: $FILE"
		fi
		log "======================================="
    done
done

log "All eligible LTE files moved successfully."