import { getTranslations } from "next-intl/server";
import { controlClass, Field, primaryButtonClass } from "@/components/customers/form-ui";

/**
 * Plain multipart form (works without JavaScript) posting to /documents/upload, which redirects
 * back to `returnTo` with ?docOk=1 or ?docError=<reason> (see UploadFeedback).
 */
export async function DocumentUploadForm({
  returnTo,
  links = {},
  lineageId,
  categories,
  visibilities,
  defaultCategory = "other",
  defaultVisibility = "team",
  heading,
}: {
  returnTo: string;
  links?: { customerId?: string; siteId?: string; workOrderId?: string };
  lineageId?: string;
  categories: string[];
  visibilities: string[];
  defaultCategory?: string;
  defaultVisibility?: string;
  heading?: string;
}) {
  const t = await getTranslations("documents");
  const idp = lineageId ? `v-${lineageId.slice(0, 6)}` : "up";
  return (
    <form action="/documents/upload" method="post" encType="multipart/form-data" className="grid gap-3 sm:grid-cols-2">
      {heading && <p className="font-heading text-sm font-semibold sm:col-span-2">{heading}</p>}
      <input type="hidden" name="returnTo" value={returnTo} />
      {links.customerId && <input type="hidden" name="customerId" value={links.customerId} />}
      {links.siteId && <input type="hidden" name="siteId" value={links.siteId} />}
      {links.workOrderId && <input type="hidden" name="workOrderId" value={links.workOrderId} />}
      {lineageId && <input type="hidden" name="lineageId" value={lineageId} />}
      <Field id={`${idp}-file`} label={t("upload.file")} required hint={t("upload.fileHint")} className="sm:col-span-2">
        <input
          id={`${idp}-file`}
          name="file"
          type="file"
          required
          accept="application/pdf,image/jpeg,image/png,image/webp,image/heic,audio/*"
          className={`${controlClass} py-2 file:mr-3 file:font-semibold`}
        />
      </Field>
      <Field id={`${idp}-title`} label={t("upload.titleField")} className="sm:col-span-2">
        <input id={`${idp}-title`} name="title" className={controlClass} />
      </Field>
      <Field id={`${idp}-category`} label={t("upload.category")} required>
        <select id={`${idp}-category`} name="category" defaultValue={defaultCategory} className={controlClass}>
          {categories.map((c) => (
            <option key={c} value={c}>
              {t(`category.${c}`)}
            </option>
          ))}
        </select>
      </Field>
      <Field id={`${idp}-visibility`} label={t("upload.visibility")} required>
        <select id={`${idp}-visibility`} name="visibility" defaultValue={defaultVisibility} className={controlClass}>
          {visibilities.map((v) => (
            <option key={v} value={v}>
              {t(`visibility.${v}`)}
            </option>
          ))}
        </select>
      </Field>
      <div className="sm:col-span-2">
        <button type="submit" className={primaryButtonClass}>
          {t("upload.submit")}
        </button>
      </div>
    </form>
  );
}

/** Result banner of the upload redirect. */
export async function UploadFeedback({ ok, error }: { ok?: string; error?: string }) {
  if (!ok && !error) return null;
  const t = await getTranslations("documents");
  if (ok) {
    return (
      <p role="status" className="mb-3 rounded-lg border-l-4 border-[var(--ok)] bg-card px-3 py-2 text-[13px] font-semibold text-[var(--ok)]">
        {t("upload.ok")}
      </p>
    );
  }
  const key = t.has(`uploadErrors.${error}`) ? `uploadErrors.${error}` : "uploadErrors.generic";
  return (
    <p role="alert" className="mb-3 rounded-lg border-l-4 border-[var(--risk)] bg-card px-3 py-2 text-[13px] font-semibold text-[var(--risk)]">
      {t(key)}
    </p>
  );
}