#!/usr/bin/env bash
set -euo pipefail
cd /home/iotcuboc/pyme || exit 1

echo "=============================================="
echo " ElaboraPro Presupuestos V4.16"
echo " Normalización botones y búsqueda"
echo "=============================================="

F="public/presupuestos_v3.php"
[ -f "$F" ] || { echo "ERROR: no existe $F"; exit 1; }

TS=$(date +%Y%m%d_%H%M%S)
B="backups/elaborapro_presupuestos_v4_16_$TS"
mkdir -p "$B"
cp -p "$F" "$B/"
echo "Backup: /home/iotcuboc/pyme/$B"

TMP=$(mktemp)
trap 'rm -f "$TMP"' EXIT
cp -p "$F" "$TMP"

if ! TMP="$TMP" php <<'PHP'
<?php
$f=getenv('TMP');
$s=file_get_contents($f);
if($s===false){fwrite(STDERR,"ERROR leyendo archivo.\n");exit(10);}
if(strpos($s,'ELABORAPRO_PRESUPUESTOS_V4_16')!==false){
 fwrite(STDERR,"ERROR: V4.16 ya aplicado.\n");exit(11);
}

function changeLink(&$s,$text,$class){
 $pat='~<a\b([^>]*)>\s*'.preg_quote($text,'~').'\s*</a>~isu';
 $count=preg_match_all($pat,$s);
 if($count!==1){
   fwrite(STDERR,"ERROR: botón $text encontrado $count veces.\n");exit(20);
 }
 $s=preg_replace_callback($pat,function($m)use($text,$class){
   $attrs=$m[1];
   if(preg_match('~\bclass=(["\'])(.*?)\1~is',$attrs)){
     $attrs=preg_replace('~\bclass=(["\'])(.*?)\1~is','class=$1btn ep-budget-action '.$class.'$1',$attrs,1);
   } else {
     $attrs=' class="btn ep-budget-action '.$class.'"'.$attrs;
   }
   return '<a'.$attrs.'>'.$text.'</a>';
 },$s,1);
}

changeLink($s,'Detalle','ep-budget-detail');
changeLink($s,'Costos','ep-budget-neutral');
changeLink($s,'Presentación','ep-budget-neutral');
changeLink($s,'Convertir a venta','ep-budget-convert');

/* Buscador: si existe formulario GET que contiene q, añadir clase sin alterar lógica. */
$forms='~<form\b([^>]*)method=(["\'])get\2([^>]*)>(?:(?!</form>).)*?<input\b[^>]*name=(["\'])q\4[^>]*>.*?</form>~isu';
if(preg_match_all($forms,$s)!==1){
 fwrite(STDERR,"ERROR: no se encontró exactamente un formulario GET de búsqueda q.\n");exit(30);
}
$s=preg_replace_callback($forms,function($m){
 $form=$m[0];
 $pos=strpos($form,'>');
 $open=substr($form,0,$pos+1);
 $rest=substr($form,$pos+1);
 if(preg_match('~\bclass=(["\'])(.*?)\1~is',$open)){
   $open=preg_replace('~\bclass=(["\'])(.*?)\1~is','class=$1$2 ep-budget-search$1',$open,1);
 } else {
   $open=substr($open,0,-1).' class="ep-budget-search">';
 }
 /* elimina inline flex-wrap que pueda forzar salto; CSS final manda */
 return $open.$rest;
},$s,1);

$css=<<<'HTML'

<style>
/* ELABORAPRO_PRESUPUESTOS_V4_16 */
body.op3-body .op3-main .ep-budget-action{
 display:inline-flex!important;align-items:center!important;justify-content:center!important;
 min-height:34px!important;padding:6px 12px!important;border-radius:8px!important;
 line-height:1.15!important;text-decoration:none!important;white-space:nowrap!important;
 box-shadow:none!important;font-weight:600!important
}
/* Detalle = verde pastel */
body.op3-body .op3-main a.ep-budget-detail{
 background:#BFE3C9!important;border:1px solid #A8D5B5!important;color:#205C36!important}
body.op3-body .op3-main a.ep-budget-detail:hover{
 background:#AEDAB9!important;border-color:#9BCDAA!important;color:#205C36!important}
/* Costos y Presentación = gris */
body.op3-body .op3-main a.ep-budget-neutral{
 background:#F1F3F5!important;border:1px solid #DCE3EA!important;color:#475569!important}
body.op3-body .op3-main a.ep-budget-neutral:hover{
 background:#E7EAEE!important;border-color:#CDD5DE!important;color:#334155!important}
/* Convertir a venta = azul pastel */
body.op3-body .op3-main a.ep-budget-convert{
 background:#C9DCFA!important;border:1px solid #AFCBF8!important;color:#174F9E!important}
body.op3-body .op3-main a.ep-budget-convert:hover{
 background:#BBD3F8!important;border-color:#9EBFF3!important;color:#123F80!important}
/* Buscar junto al campo */
body.op3-body .op3-main form.ep-budget-search{
 display:flex!important;flex-direction:row!important;align-items:center!important;
 gap:10px!important;flex-wrap:nowrap!important;width:100%!important}
body.op3-body .op3-main form.ep-budget-search input[name="q"]{
 flex:1 1 auto!important;width:auto!important;min-width:0!important;margin:0!important}
body.op3-body .op3-main form.ep-budget-search button{
 flex:0 0 auto!important;width:auto!important;margin:0!important}
</style>

HTML;

$footer='~<\?php\s+render_footer_v3\(\);\s*\?>~';
if(preg_match_all($footer,$s)!==1){
 fwrite(STDERR,"ERROR: footer inesperado.\n");exit(40);
}
$s=preg_replace($footer,$css.'<?php render_footer_v3(); ?>',$s,1);

foreach(['ELABORAPRO_PRESUPUESTOS_V4_16','ep-budget-detail','ep-budget-neutral','ep-budget-convert','ep-budget-search'] as $x){
 if(strpos($s,$x)===false){fwrite(STDERR,"ERROR validación: $x\n");exit(50);}
}
if(file_put_contents($f,$s)===false){fwrite(STDERR,"ERROR escribiendo temporal.\n");exit(60);}
echo "OK: V4.16 preparado en temporal.\n";
PHP
then
 echo "ERROR: parche abortado. No se instaló ningún cambio."
 exit 1
fi

echo
echo "===== LINT TEMPORAL ====="
php -l "$TMP"

echo
echo "===== VALIDACION ====="
grep -n -B2 -A3 -E 'ep-budget-(detail|neutral|convert|search)|ELABORAPRO_PRESUPUESTOS_V4_16' "$TMP" | tail -70

echo
echo "===== INSTALANDO ====="
cp -p "$TMP" "$F"

echo
echo "===== LINT FINAL ====="
if ! php -l "$F"; then
 echo "ERROR: restaurando respaldo..."
 cp -p "$B/presupuestos_v3.php" "$F"
 exit 1
fi

echo
echo "=============================================="
echo " OK - Presupuestos V4.16 instalado"
echo " Detalle          = verde pastel"
echo " Costos           = gris"
echo " Presentación     = gris"
echo " Convertir a venta= azul pastel"
echo " Buscar           = alineado"
echo " Respaldo: /home/iotcuboc/pyme/$B"
echo "=============================================="