"use client";

import { useActionState } from "react";
import Link from "next/link";
import { useTranslations } from "next-intl";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { createTrialTenantAction, type PlatformTrialState } from "@/server/actions/trial-platform";

const ERR = "rounded-lg bg-[rgba(255,107,107,0.16)] px-3 py-2 text-sm text-[var(--risk)]";

function ErrorText({ state }: { state: PlatformTrialState }) {
  const t = useTranslations("trial.platform.errors");
  if (state.status !== "error") return null;
  return <p role="alert" className={ERR}>{t.has(state.code) ? t(state.code) : t("failed")}</p>;
}

/** L15 Testphase: platform wizard "Testmandant anlegen" (one page, four sections). */
export function PlatformTrialCreateForm({ defaultEnd, min, max }: { defaultEnd: string; min: string; max: string }) {
  const t = useTranslations("trial.platform.wizard");
  const [state, action, pending] = useActionState<PlatformTrialState, FormData>(createTrialTenantAction, { status: "idle" });
  const section = "shadow-card rounded-xl border bg-card p-5";
  return (
    <form action={action} className="grid gap-4">
      <fieldset className={section}>
        <legend className="font-heading text-sm font-semibold">{t("sectionCompany")}</legend>
        <div className="mt-3 grid gap-4 md:grid-cols-2">
          <div>
            <Label htmlFor="companyName">{t("companyName")} *</Label>
            <Input id="companyName" name="companyName" required minLength={2} maxLength={120} className="mt-1 h-11" />
          </div>
          <div>
            <Label htmlFor="sector">{t("sector")}</Label>
            <Input id="sector" name="sector" maxLength={80} className="mt-1 h-11" />
          </div>
        </div>
      </fieldset>
      <fieldset className={section}>
        <legend className="font-heading text-sm font-semibold">{t("sectionAdmin")}</legend>
        <div className="mt-3 grid gap-4 md:grid-cols-2">
          <div>
            <Label htmlFor="adminName">{t("adminName")} *</Label>
            <Input id="adminName" name="adminName" required minLength={2} maxLength={120} className="mt-1 h-11" />
          </div>
          <div>
            <Label htmlFor="adminEmail">{t("adminEmail")} *</Label>
            <Input id="adminEmail" name="adminEmail" type="email" required maxLength={200} className="mt-1 h-11" />
          </div>
        </div>
        <p className="mt-2 text-[12px] text-muted-foreground">{t("adminHint")}</p>
      </fieldset>
      <fieldset className={section}>
        <legend className="font-heading text-sm font-semibold">{t("sectionPeriod")}</legend>
        <div className="mt-3 max-w-xs">
          <Label htmlFor="endDate">{t("endDate")} *</Label>
          <Input id="endDate" name="endDate" type="date" required min={min} max={max} defaultValue={defaultEnd} className="mt-1 h-11" />
          <p className="mt-1 text-[12px] text-muted-foreground">{t("endDateHint")}</p>
        </div>
      </fieldset>
      <fieldset className={section}>
        <legend className="font-heading text-sm font-semibold">{t("sectionSetup")}</legend>
        <label className="mt-3 flex min-h-11 items-center gap-2 text-sm">
          <input type="checkbox" name="sampleData" defaultChecked className="size-5" /> {t("sampleData")}
        </label>
      </fieldset>
      <ErrorText state={state} />
      <div className="flex flex-wrap gap-2">
        <Button type="submit" className="h-11" disabled={pending}>{pending ? t("submitting") : t("submit")}</Button>
        <Button variant="outline" className="h-11" nativeButton={false} render={<Link href="/admin" />}>{t("cancel")}</Button>
      </div>
    </form>
  );
}

/** L15 Testphase: confirmation form of one lifecycle operation (bound server action). */
export function TrialLifecycleForm({
  action,
  withDate,
  defaultEnd,
  min,
  max,
  closeHref,
  destructive,
}: {
  action: (prev: PlatformTrialState, fd: FormData) => Promise<PlatformTrialState>;
  withDate: boolean;
  defaultEnd?: string;
  min?: string;
  max?: string;
  closeHref: string;
  destructive?: boolean;
}) {
  const t = useTranslations("trial.platform.ops");
  const tw = useTranslations("trial.platform.wizard");
  const [state, formAction, pending] = useActionState<PlatformTrialState, FormData>(action, { status: "idle" });
  return (
    <form action={formAction} className="space-y-3">
      {withDate && (
        <div className="max-w-xs">
          <Label htmlFor="op-endDate">{tw("endDate")} *</Label>
          <Input id="op-endDate" name="endDate" type="date" required min={min} max={max} defaultValue={defaultEnd} className="mt-1 h-11" />
        </div>
      )}
      <label className="flex min-h-11 items-center gap-2 text-sm">
        <input type="checkbox" name="confirm" className="size-5" required /> {t("confirm")}
      </label>
      <ErrorText state={state} />
      <div className="flex flex-wrap gap-2">
        <Button type="submit" className="h-11" variant={destructive ? "destructive" : "default"} disabled={pending}>{pending ? t("submitting") : t("submit")}</Button>
        <Button variant="outline" className="h-11" nativeButton={false} render={<Link href={closeHref} />}>{t("close")}</Button>
      </div>
    </form>
  );
}