#!/bin/bash
URL="https://citaprevia.alicante.es/citaprevia/pedir-cita"
UA="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
MAX=25
for i in $(seq 1 $MAX); do
  echo "=== Attempt $i of $MAX ==="
  curl -sSL -A "$UA" "$URL" -o /tmp/cita_previa.html \
       -w "HTTP:%{http_code} SIZE:%{size_download} TIME:%{time_total}\n" \
       --max-time 45 --connect-timeout 15
  CODE=$?
  if [ $CODE -eq 0 ]; then
    SIZE=$(wc -c < /tmp/cita_previa.html)
    if [ "$SIZE" -gt 5000 ]; then
      echo "SUCCESS: got $SIZE bytes"
      break
    else
      echo "Got $SIZE bytes (too small), retrying..."
    fi
  elif [ $CODE -eq 28 ]; then
    echo "timeout, retrying..."
  else
    echo "curl error $CODE, retrying..."
  fi
  sleep $((i > 5 ? 5 : 3))
done