<?php
ini_set('display_errors', '0');
error_reporting(0);
header('Content-Type: application/json; charset=utf-8');
require_once 'conexion.php';

$rawInput = file_get_contents('php://input');
$id = 0;

if ($rawInput) {
    $data = json_decode($rawInput, true);
    if (json_last_error() === JSON_ERROR_NONE && isset($data['id'])) {
        $id = intval($data['id']);
    }
}

if (!$id && isset($_POST['id'])) {
    $id = intval($_POST['id']);
}

if (!$id && isset($_GET['id'])) {
    $id = intval($_GET['id']);
}

if ($conexion->connect_error) {
    echo json_encode(['success' => false, 'error' => 'Error de conexión']);
    exit;
}

if ($id <= 0) {
    echo json_encode(['success' => false, 'error' => 'ID no proporcionado']);
    exit;
}

$conexion->begin_transaction();

try {
    $stmt = $conexion->prepare("DELETE FROM ordenes_productos WHERE ID_Orden IN (SELECT ID_Orden FROM ordenes_compra WHERE ID_Proveedor = ?)");
    $stmt->bind_param("i", $id);
    $stmt->execute();
    $stmt->close();

    $stmt = $conexion->prepare("DELETE FROM ordenes_compra WHERE ID_Proveedor = ?");
    $stmt->bind_param("i", $id);
    $stmt->execute();
    $stmt->close();

    $stmt = $conexion->prepare("DELETE FROM proveedores_productos WHERE ID_Proveedor = ?");
    $stmt->bind_param("i", $id);
    $stmt->execute();
    $stmt->close();

    $stmt = $conexion->prepare("DELETE FROM proveedores WHERE ID_Proveedor = ?");
    $stmt->bind_param("i", $id);
    $stmt->execute();

    if ($stmt->affected_rows === 0) {
        $stmt->close();
        $conexion->rollback();
        echo json_encode(['success' => false, 'error' => 'Proveedor no encontrado']);
        exit;
    }

    $stmt->close();
    $conexion->commit();
    echo json_encode(['success' => true, 'message' => 'Proveedor eliminado']);
} catch (Exception $e) {
    $conexion->rollback();
    echo json_encode(['success' => false, 'error' => 'Error al eliminar proveedor: ' . $e->getMessage()]);
}

$conexion->close();
?>