"use client";

import { useId, useState } from "react";
import Link from "next/link";
import { useRouter, useSearchParams } from "next/navigation";
import { useTranslation } from "../../../contexts/MessagesContext";
import Login from "../../../components/modals/Login";
import Button from "../../../components/buttons/Button";
import TextInput from "../../../components/controls/TextInput";
import ContentLockup from "../../../components/type/ContentLockup";
import { EMAIL_MAX_LEN } from "../../../../lib/create/isValidCreateFlowSaveEmail";
import { INVITE_EMAIL_PATTERN } from "../../../../lib/create/parseInviteEmails";
import { resendExpiredStakeholderInvite } from "../../../../lib/create/api";

const expiredPageBgClass =
  "min-h-[100dvh] bg-[var(--color-surface-invert-brand-primary)]";

export function ExpiredInviteScreen() {
  const t = useTranslation("pages.invite");
  const router = useRouter();
  const searchParams = useSearchParams();
  const token = searchParams.get("token") ?? "";
  const titleId = useId();
  const [email, setEmail] = useState("");
  const [emailError, setEmailError] = useState("");
  const [formError, setFormError] = useState("");
  const [submitting, setSubmitting] = useState(false);
  const [sent, setSent] = useState(false);

  const heading = sent
    ? { title: t("sentTitle"), description: t("sentBody") }
    : { title: t("expiredTitle"), description: t("expiredDescription") };

  async function sendLink() {
    const trimmed = email.trim().toLowerCase();
    if (!INVITE_EMAIL_PATTERN.test(trimmed)) {
      setEmailError(t("emailInvalid"));
      return;
    }
    if (token.length < 10) {
      setFormError(t("missingToken"));
      return;
    }
    setEmailError("");
    setFormError("");
    setSubmitting(true);
    const result = await resendExpiredStakeholderInvite(token, trimmed);
    setSubmitting(false);
    if (result.ok === false) {
      if (result.retryAfterMs) {
        const seconds = Math.max(1, Math.ceil(result.retryAfterMs / 1000));
        setFormError(t("rateLimited").replace("{seconds}", String(seconds)));
        return;
      }
      setFormError(result.error || t("genericError"));
      return;
    }
    setSent(true);
  }

  return (
    <div className={expiredPageBgClass}>
      <Login
        isOpen
        usePortal={false}
        backdropVariant="solid"
        onClose={() => {
          router.push("/");
        }}
        ariaLabelledBy={titleId}
        belowCard={
          <Link
            href="/"
            className="text-small-paragraph text-[var(--color-content-invert-tertiary,#2d2d2d)] text-center hover:opacity-90"
          >
            {t("backToHome")}
          </Link>
        }
      >
        <div className="flex flex-col gap-6">
          <ContentLockup
            titleId={titleId}
            title={heading.title}
            description={heading.description}
            variant="login"
            alignment="left"
          />
          {formError ? (
            <p
              role="alert"
              className="text-[14px] text-[var(--color-border-default-utility-negative)]"
            >
              {formError}
            </p>
          ) : null}
          {!sent ? (
            <form
              className="flex flex-col gap-4"
              onSubmit={(event) => {
                event.preventDefault();
                void sendLink();
              }}
              noValidate
            >
              <TextInput
                label={t("emailLabel")}
                placeholder={t("emailPlaceholder")}
                type="email"
                name="email"
                autoComplete="email"
                inputMode="email"
                value={email}
                onChange={(event) => {
                  setEmail(event.target.value);
                  setEmailError("");
                }}
                disabled={submitting}
                error={Boolean(emailError)}
                showHelpIcon
                maxLength={EMAIL_MAX_LEN}
              />
              {emailError ? (
                <p
                  role="alert"
                  className="text-[14px] text-[var(--color-border-default-utility-negative)]"
                >
                  {emailError}
                </p>
              ) : null}
              <p className="text-small-paragraph text-[var(--color-content-default-tertiary)]">
                {t("notInvitedAddress")}
              </p>
              <Button
                type="submit"
                size="large"
                buttonType="filled"
                palette="default"
                disabled={submitting}
                className="w-full !justify-center text-center px-[var(--space-400)] py-[var(--space-300)]"
              >
                {t("sendNewLink")}
              </Button>
            </form>
          ) : null}
        </div>
      </Login>
    </div>
  );
}