/**
 * # 路由 联系页 /contact-us/
 * 有 Elementor 内容则渲染；否则标准布局：联系方式卡片 + 询盘表单。
 */
import { createFileRoute } from "@tanstack/react-router";
import { createServerFn } from "@tanstack/react-start";
import { getLayoutData, Layout } from "~/components/website/Layout";
import { ElementorRenderer, extractElementor } from "~/components/elementor/Renderer";
import { InquiryForm } from "~/components/website/InquiryForm";
import { Breadcrumb, BreadcrumbList, BreadcrumbItem, BreadcrumbLink, BreadcrumbPage, BreadcrumbSeparator } from "~/components/ui/breadcrumb";
import { getPublishedContent } from "~/server/data";

export const Route = createFileRoute("/contact-us")({
  // loader 本体抽为 Server Function（客户端导航在浏览器重跑 loader，db 依赖必须在服务端执行）
  loader: () => loadContactData(),
  head: ({ loaderData }) => ({
    meta: [
      { title: loaderData?.page?.seoTitle || "Contact Us | Dusun IoT" },
      { name: "description", content: loaderData?.page?.seoDescription || "Contact Dusun IoT for IoT gateway solutions, OEM/ODM customization and technical support. Email sales@dusuniot.com." },
    ],
  }),
  component: ContactPage,
});

/** # 函数 联系页数据加载（Server Function：客户端导航时由服务端执行） */
const loadContactData = createServerFn({ method: "GET" }).handler(async (): Promise<any> => {
  const [layout, page] = await Promise.all([
    getLayoutData(),
    getPublishedContent("contact-us", "page").catch(() => null),
  ]);
  const meta = (page?.meta ?? null) as Record<string, unknown> | null;
  return { layout, page, meta };
});

/** # 组件 联系页（原站为 full-canvas Elementor 模板：hero 通栏 + 表单卡叠压，不加 site-container） */
function ContactPage() {
  const data = Route.useLoaderData();
  const elementor = extractElementor(data.meta);
  return (
    <Layout layout={data.layout}>
      {elementor ? (
        <ElementorRenderer doc={elementor} />
      ) : (
        <div className="site-container">
          <Breadcrumb className="pt-6" aria-label="Breadcrumb">
            <BreadcrumbList>
              <BreadcrumbItem><BreadcrumbLink to="/">Home</BreadcrumbLink></BreadcrumbItem>
              <BreadcrumbSeparator />
              <BreadcrumbItem><BreadcrumbPage>Contact Us</BreadcrumbPage></BreadcrumbItem>
            </BreadcrumbList>
          </Breadcrumb>
          <h1 className="mt-0 text-[28px]">Contact Us</h1>
          <div className="mb-8 grid grid-cols-1 gap-[18px] min-[800px]:grid-cols-3">
            <div className="rounded-lg border border-line bg-soft p-5">
              <h3 className="mt-0">Sales & Inquiries</h3>
              <p>
                Email: <a href="mailto:sales@dusuniot.com">sales@dusuniot.com</a>
                <br />
                Tel: +86 755 2643 0850
              </p>
            </div>
            <div className="rounded-lg border border-line bg-soft p-5">
              <h3 className="mt-0">Visit Us</h3>
              <p>
                5F, Building B, Henglong Industrial Park,
                <br />
                Xili, Nanshan District, Shenzhen, Guangdong, China
              </p>
            </div>
            <div className="rounded-lg border border-line bg-soft p-5">
              <h3 className="mt-0">Support</h3>
              <p>24/7 technical support for OEM/ODM partners. Response within 24 hours on business days.</p>
            </div>
          </div>
          <section className="mt-4 mb-14">
            <InquiryForm formKey="contact-us-form" title="Get a Quote" />
          </section>
        </div>
      )}
    </Layout>
  );
}