"use client";
import { useEffect, useState } from "react";

const BOOT_LINES = [
  "> initializing eldov.win...",
  "> loading context bus...",
  "> scanning fleet...",
  "> ready.",
];

const ROTATING = [
  "Self-Hoster",
  "Bot-Bauer",
  "Multi-Agent-Fleet-Owner",
  "Open-Source-Themer",
  "Casino-Bot-Dev",
  "Prediction-Market-Trader",
];

export function HeroBanner({ dict, heroImage }: { dict: { kicker: string; title: string; lede: string; cta: { title: string; body: string } }; heroImage: string }) {
  const [lineIdx, setLineIdx] = useState(0);
  const [typed, setTyped] = useState("");
  const [done, setDone] = useState(false);
  const [rotIdx, setRotIdx] = useState(0);

  // Boot-Animation: zeilenweise tippen, 280ms pro Zeile.
  useEffect(() => {
    if (lineIdx >= BOOT_LINES.length) { setDone(true); return; }
    const line = BOOT_LINES[lineIdx];
    let i = 0;
    const id = setInterval(() => {
      i += 1;
      setTyped(line.slice(0, i));
      if (i >= line.length) {
        clearInterval(id);
        setTimeout(() => {
          setLineIdx((v) => v + 1);
          setTyped("");
        }, 380);
      }
    }, 24);
    return () => clearInterval(id);
  }, [lineIdx]);

  // Rotating titles (für die Unterzeile), 2.5s pro Wort.
  useEffect(() => {
    if (!done) return;
    const id = setInterval(() => setRotIdx((v) => (v + 1) % ROTATING.length), 2500);
    return () => clearInterval(id);
  }, [done]);

  return (
    <section className="hero-banner">
      <div
        className="hero-bg"
        style={{
          ["--hero-bg" as string]: `url('${heroImage}')`,
        }}
      />
      {/* Grid-Linien (sehr subtil) */}
      <div
        aria-hidden
        className="absolute inset-0 opacity-[0.04]"
        style={{
          backgroundImage:
            "linear-gradient(var(--accent) 1px, transparent 1px), linear-gradient(90deg, var(--accent) 1px, transparent 1px)",
          backgroundSize: "64px 64px",
          maskImage: "linear-gradient(to bottom, black, transparent 80%)",
          WebkitMaskImage: "linear-gradient(to bottom, black, transparent 80%)",
        }}
      />
      <div className="relative mx-auto max-w-[var(--max-w)] px-6 py-24 md:py-36 lg:py-48">
        <div className="grid gap-12 lg:grid-cols-[1.4fr_1fr] lg:items-center">
          <div>
            <p className="mb-4 flex items-center gap-2 font-mono text-xs uppercase tracking-[0.18em] text-accent">
              <span className="inline-block h-1 w-6 bg-accent" />
              {dict.kicker}
            </p>
            <h1
              className="headline-glitch glow-text mb-6 text-5xl font-semibold leading-[1.05] tracking-tight md:text-7xl lg:text-8xl"
              data-text={dict.title}
            >
              {dict.title}
            </h1>
            <p className="mb-8 max-w-xl text-lg leading-relaxed text-[var(--fg-dim)] md:text-xl">
              {dict.lede}
            </p>
            <div className="flex flex-wrap items-center gap-3">
              <a
                href="#featured"
                className="group inline-flex items-center gap-2 border border-accent bg-accent px-5 py-2.5 font-mono text-sm uppercase tracking-wider text-[var(--bg)] transition-colors hover:bg-transparent hover:text-accent"
                data-cursor="hover"
              >
                <span>{dict.cta.title}</span>
                <span aria-hidden className="transition-transform group-hover:translate-x-0.5">→</span>
              </a>
              <span className="font-mono text-xs text-muted">
                <kbd className="rounded border border-hairline px-1.5 py-0.5">⌘</kbd>
                <kbd className="ml-0.5 rounded border border-hairline px-1.5 py-0.5">K</kbd>
                <span className="ml-2">search</span>
              </span>
            </div>
          </div>
          <div className="hidden lg:block">
            <BootSequence typed={typed} lineIdx={lineIdx} done={done} rotIdx={rotIdx} />
          </div>
        </div>
      </div>
      {/* Subtle Bottom-Fade zu bg */}
      <div className="pointer-events-none absolute inset-x-0 bottom-0 h-24 bg-gradient-to-b from-transparent to-[var(--bg)]" />
    </section>
  );
}

function BootSequence({ typed, lineIdx, done, rotIdx }: { typed: string; lineIdx: number; done: boolean; rotIdx: number }) {
  return (
    <div
      aria-hidden
      className="ascii-box font-mono text-sm leading-relaxed"
      style={{ boxShadow: "0 24px 60px rgba(0,0,0,0.5)" }}
    >
      <div className="mb-3 flex items-center justify-between border-b border-hairline pb-2">
        <span className="flex items-center gap-2 text-muted">
          <span className="inline-block h-2 w-2 rounded-full bg-[color-mix(in_oklab,var(--accent)_50%,transparent)]" />
          <span className="text-[10px] uppercase tracking-wider">terminal ~ eldov</span>
        </span>
        <span className="text-[10px] uppercase tracking-wider text-muted">v0.42.0</span>
      </div>
      <div className="space-y-1.5 text-[var(--fg-dim)]">
        {BOOT_LINES.slice(0, lineIdx).map((l, i) => (
          <div key={i}>
            <span className="text-muted">{l}</span>
          </div>
        ))}
        {!done ? (
          <div>
            <span className="text-accent">{BOOT_LINES[lineIdx]?.slice(0, typed.length)}</span>
            <span className="cursor-blink inline-block w-2 -mb-0.5 bg-accent align-baseline">&nbsp;</span>
          </div>
        ) : (
          <>
            <div className="text-accent">{BOOT_LINES[BOOT_LINES.length - 1]}</div>
            <div className="mt-3 text-[var(--fg)]">
              <span className="text-muted">role:</span>{" "}
              <span
                className="inline-block min-w-[8ch] text-accent"
                style={{ transition: "opacity 200ms" }}
              >
                {ROTATING[rotIdx]}
              </span>
              <span className="cursor-blink inline-block w-2 -mb-0.5 bg-accent align-baseline">&nbsp;</span>
            </div>
            <div className="text-[var(--fg-dim)]">
              <span className="text-muted">since:</span> 2003 (online-handle)
            </div>
            <div className="text-[var(--fg-dim)]">
              <span className="text-muted">now:</span> building things that survive contact with users
            </div>
          </>
        )}
      </div>
    </div>
  );
}
