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<?php
include "start.php";
header('Content-Type: application/json; charset=utf-8');
// Estimation du loyer moyen de biens comparables (gratuit, basé sur nos données).
// Repli automatique : quartier -> région -> ville.
$city = isset($_REQUEST['city']) ? trim($_REQUEST['city']) : '';
$region = isset($_REQUEST['region']) ? trim($_REQUEST['region']) : '';
$neighborhood = isset($_REQUEST['neighborhood']) ? trim($_REQUEST['neighborhood']) : '';
$rooms = isset($_REQUEST['rooms']) ? (int)$_REQUEST['rooms'] : 0;
$excludeId = isset($_REQUEST['exclude']) ? (int)$_REQUEST['exclude'] : 0;
$scopes = array();
if ($neighborhood !== '') { $scopes[] = array('col' => 'neighborhood', 'val' => $neighborhood, 'min' => 2); }
if ($region !== '') { $scopes[] = array('col' => 'region', 'val' => $region, 'min' => 2); }
if ($city !== '') { $scopes[] = array('col' => 'city', 'val' => $city, 'min' => 1); }
$out = array('ok' => false);
foreach ($scopes as $sc) {
$vEsc = mysqli_real_escape_string($link, $sc['val']);
$roomCond = ($rooms > 0) ? " AND nb_rooms BETWEEN ".($rooms-1)." AND ".($rooms+1)." " : "";
$exclCond = ($excludeId > 0) ? " AND id_property <> ".$excludeId." " : "";
$q = mysqli_query($link, "SELECT AVG(price_monthly) a, COUNT(*) c, MIN(price_monthly) mn, MAX(price_monthly) mx
FROM rent_properties
WHERE status=3 AND price_monthly>0 AND ".$sc['col']."='".$vEsc."' ".$roomCond.$exclCond);
$r = $q ? mysqli_fetch_assoc($q) : null;
if ($r && (int)$r['c'] >= $sc['min'] && $r['a'] > 0) {
$out = array(
'ok' => true,
'avg' => (int)round($r['a']),
'min' => (int)$r['mn'],
'max' => (int)$r['mx'],
'count' => (int)$r['c'],
'scope' => $sc['val']
);
break;
}
}
echo json_encode($out, JSON_UNESCAPED_UNICODE);