#!/usr/bin/env bash
set -euo pipefail
export MAGICK_TEMPORARY_PATH=/tmp
export TMPDIR=/tmp
export MAGICK_THREAD_LIMIT=0
OUT='/var/www/html/aurora/pictures_mod/20250823/stack_aur_1_n50_max_20250916_183206_384.png'
BIN='/usr/bin/convert'

# Les alle filer fra PHP (via miljø)
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000025_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000049_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000113_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000137_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000201_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000225_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000249_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000313_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000337_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000401_lys28_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000425_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000450_lys29_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000514_lys30_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000538_lys32_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000602_lys28_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000626_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000650_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000714_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000738_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000802_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000826_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000850_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000914_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_000938_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001002_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001026_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001051_lys29_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001115_lys32_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001139_lys28_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001203_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001227_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001251_lys28_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001315_lys31_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001339_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001403_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001427_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001451_lys29_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001515_lys106_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001539_lys28_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001603_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001627_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001652_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001716_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001740_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001804_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001828_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001852_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001916_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_001940_lys27_KP01_ISO1000_Lukker19.jpeg')
IN+=('/var/www/html/aurora/pictures/20250823/aurle_20250823_002004_lys27_KP01_ISO1000_Lukker19.jpeg')

CHUNK=${CHUNK_SIZE:-50}
TOTAL=${#IN[@]}
TMP_DIR=$(mktemp -d '/var/www/html/aurora/pictures_mod/20250823'/.stack_XXXXXXXX)
PARTS=()

stack_group() {
  local out="$1"; shift
  "$BIN" "$@" -evaluate-sequence 'max' "$out"
}

i=0
while [ "$i" -lt "$TOTAL" ]; do
  j=$(( i + CHUNK ))
  if [ "$j" -gt "$TOTAL" ]; then j="$TOTAL"; fi
  PART="$TMP_DIR/part_$(printf "%04d" $((i/CHUNK+1))).png"
  stack_group "$PART" "${IN[@]:$i:$((j-i))}"
  PARTS+=("$PART")
  i="$j"
done

"$BIN" "${PARTS[@]}" -evaluate-sequence 'max' "$OUT"

rm -rf "$TMP_DIR"
rm -f "'/var/www/html/aurora/pictures_mod/20250823/.stack_aur_1_n50_max_20250916_183206_384.png.list'"
rm -f "$0" "'/var/www/html/aurora/pictures_mod/20250823/stack_aur_1_n50_max_20250916_183206_384.png'.log" "'/var/www/html/aurora/pictures_mod/20250823/stack_aur_1_n50_max_20250916_183206_384.png'.err"