import { PageHead } from "~/components/PageHead";
import { EdgeCacheHeaders } from "~/components/EdgeCacheHeaders";
import SubdomainHeader from "~/components/SubdomainHeader";
import FeatureCollage from "~/components/nook/FeatureCollage";
import FeatureBreakdowns from "~/components/nook/FeatureBreakdowns";
import Button from "~/components/ui/Button";
import Input from "~/components/ui/Input";
import { createSignal, Show } from "solid-js";
import { useDarkMode } from "~/context/darkMode";
import { useSite } from "~/context/SiteContext";

/* The appcast's first enclosure always names the latest release dmg. */
async function downloadNook() {
  try {
    const res = await fetch("/api/TheNook/appcast.xml");
    const xml = await res.text();
    const url =
      xml.match(/<enclosure url="([^"]+\.dmg)"/)?.[1] ??
      xml.match(/<enclosure url="([^"]+\.zip)"/)?.[1];
    if (!url) throw new Error("no enclosure");
    window.location.href = url;
  } catch {
    console.error("Could not resolve latest Nook download");
  }
}

export default function NookLanding() {
  const site = useSite();
  const { isDark } = useDarkMode();
  const brandColor = () =>
    isDark() ? (site().brandColorDark ?? site().brandColor) : site().brandColor;
  const [resendEmail, setResendEmail] = createSignal("");
  const [resendSending, setResendSending] = createSignal(false);
  const [resendSent, setResendSent] = createSignal(false);
  const [resendError, setResendError] = createSignal(false);

  const resendLicense = async () => {
    if (resendSending()) return;
    const email = resendEmail().trim();
    if (!email) return;
    setResendSending(true);
    setResendSent(false);
    setResendError(false);
    try {
      const res = await fetch("/api/the-nook/resend-license", {
        method: "POST",
        headers: { "content-type": "application/json" },
        body: JSON.stringify({ email })
      });
      if (!res.ok) throw new Error("resend failed");
      setResendSent(true);
    } catch {
      setResendError(true);
    } finally {
      setResendSending(false);
    }
  };

  return (
    <>
      <EdgeCacheHeaders maxAge={300} />
      <PageHead
        title="Home"
        description="The Nook — a native macOS utility for coding-agent orchestration, fan and thermal control."
        ogImage="/nook/og-default.png"
        ogTitle="The Nook — native macOS agent orchestration"
        ogDescription="A one-time-purchase macOS app for coding-agent orchestration, fan control, and thermal insight."
      />

      <SubdomainHeader />

      {/* ── Hero ─────────────────────────────────────────────────────── */}
      {/* -mt-14 pulls the hero under the sticky header; pt-14 re-clears
          content, so the gradient fills the full viewport incl. the bar */}
      <div class="relative -mt-14 flex min-h-svh flex-col overflow-hidden pt-14">
        <div
          class="fixed inset-0 z-0"
          style={{
            background: isDark()
              ? "radial-gradient(ellipse at top, #123945 0%, #0b0b10 70%)"
              : "radial-gradient(ellipse at top, #d7eef5 0%, #f5f5f5 70%)"
          }}
        />
        <div class="relative z-10 flex flex-1 flex-col items-center justify-center px-4 py-12 text-center sm:py-24">
          <img
            src="/nook/icon.png"
            alt="The Nook App Icon"
            height={128}
            width={128}
            class="mb-4 h-24 w-24 rounded-[22%] object-cover object-center shadow-2xl sm:mb-6 sm:h-32 sm:w-32"
          />
          <div
            class="text-text/90 mb-6 rounded-2xl px-5 py-3 text-sm font-semibold tracking-wide backdrop-blur-sm"
            style={{
              border: "1px solid var(--color-overlay0)",
              background: "var(--color-surface0)"
            }}
          >
            The Nook
          </div>
          <h1 class="text-text mb-4 text-4xl font-bold tracking-tight sm:text-5xl">
            Your Mac and Agents, under control
          </h1>
          <p class="text-subtext0 mb-2 max-w-xl text-xl">
            Agent orchestration, fan and thermal control in a beautiful native
            UI.
          </p>
          <p class="text-subtext1 mb-8 text-sm">
            macOS 14+ · 14-day free trial · up to 3 devices
          </p>

          <div class="flex flex-col items-center gap-4 sm:flex-row sm:space-x-4">
            <Button
              variant="download"
              size="lg"
              color={brandColor()}
              onClick={downloadNook}
            >
              Download trial
            </Button>
            <Button
              variant="secondary"
              size="lg"
              onClick={() => (window.location.href = "/checkout")}
            >
              Buy
            </Button>
          </div>
          <div class="mt-3 flex flex-col items-center gap-1.5">
            <span class="border-overlay0 bg-surface0 text-subtext0 rounded-full border px-2.5 py-0.5 text-[11px] font-semibold tracking-wide">
              Beta pricing · 33% off
            </span>
            <p class="text-subtext1 text-xs">
              <span class="text-subtext0 line-through">$15</span>{" "}
              <span class="text-text font-bold">$10</span> one-time
            </p>
          </div>
        </div>
      </div>

      {/* ── Feature collage ─────────────────────────────────────────── */}
      <FeatureCollage />

      {/* ── Feature breakdowns: the features in action ─────────────── */}
      <section class="bg-base relative z-20 px-4 py-16 md:px-8">
        <div class="mx-auto max-w-5xl">
          <p class="text-subtext1 mb-2 text-center text-xs font-semibold tracking-[0.18em] uppercase">
            In action
          </p>
          <h2 class="text-text mb-16 text-center text-3xl font-bold">
            Built for the way you actually run agents
          </h2>
          <FeatureBreakdowns />
        </div>
      </section>

      {/* ── CTA ──────────────────────────────────────────────────────── */}
      <section class="bg-surface0 relative z-20 px-4 py-20 md:px-8">
        <div class="mx-auto max-w-4xl text-center">
          <h2 class="text-text mb-4 text-3xl font-bold">
            Try it free for 14 days
          </h2>
          <p class="text-subtext0 mx-auto mb-10 max-w-2xl leading-relaxed">
            Orchestrate your coding agents, watch temperatures, take control of
            your fans, and keep background services quiet. When the trial ends,
            unlock everything with a single one-time payment — no subscription,
            ever.
          </p>
          <div class="flex flex-col items-center justify-center gap-4 sm:flex-row sm:space-x-4">
            <Button
              variant="download"
              size="lg"
              color={brandColor()}
              onClick={downloadNook}
            >
              Download trial
            </Button>
            <a
              class="text-subtext1 my-auto text-sm underline decoration-dotted hover:opacity-80"
              href="/checkout"
            >
              Buy a license → $10{" "}
              <span class="text-subtext0 line-through">$15</span>
            </a>
          </div>
          <p class="text-subtext1 mt-6 text-xs">
            Beta pricing — full price will be $15. One license covers up to 3 of
            your own Macs.
          </p>
        </div>
      </section>

      {/* ── Resend license ─────────────────────────────────────────── */}
      <section class="bg-base relative z-20 px-4 py-16 md:px-8">
        <div class="border-overlay0 bg-surface0 mx-auto max-w-md rounded-xl border p-8">
          <h2 class="text-text mb-2 text-center text-2xl font-bold">
            Lost your license?
          </h2>
          <p class="text-subtext0 mb-6 text-center text-sm">
            Enter the email you purchased with and we'll resend your key.
          </p>
          <form
            class="flex flex-col gap-3"
            onSubmit={(e) => {
              e.preventDefault();
              resendLicense();
            }}
          >
            <Input
              type="email"
              required
              label="Email"
              placeholder="you@example.com"
              disabled={resendSending()}
              value={resendEmail()}
              onInput={(e) => setResendEmail(e.currentTarget.value)}
            />
            <Button
              type="submit"
              variant="primary"
              color={brandColor()}
              loading={resendSending()}
            >
              Resend license
            </Button>
          </form>
          <Show when={resendSent()}>
            <p class="text-subtext1 mt-4 text-center text-sm">
              Check your inbox — if a license is registered to that email, your
              key is on its way.
            </p>
          </Show>
          <Show when={resendError()}>
            <p class="mt-4 text-center text-sm text-red-500">
              Something went wrong. Please try again.
            </p>
          </Show>
        </div>
      </section>
    </>
  );
}