"use client";

import { motion, useReducedMotion, type Variants } from "motion/react";
import dynamic from "next/dynamic";
import { useEffect, useRef, useState } from "react";
import { shouldLoadHeroScene } from "@/app/lib/should-load-hero-scene";
import { CV_URL } from "@/lib/site-navigation";
import { buildWhatsAppUrl } from "@/lib/whatsapp";
import { ControlRoomGlobe } from "./cinematic/ControlRoomGlobe";
import { HeroStarfield } from "./cinematic/HeroStarfield";
import MagneticButton from "./cinematic/MagneticButton";
import { TelemetryStrip } from "./cinematic/TelemetryStrip";

const HeroScene = dynamic(() => import("./cinematic/HeroScene"), {
  ssr: false,
});

const SOCIAL_LINKS = [
  {
    href: "https://github.com/evandrodevbr",
    label: "GitHub",
    icon: (
      <path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z" />
    ),
  },
  {
    href: "https://www.linkedin.com/in/evandro-fonseca-junior-0969aa1b0/",
    label: "LinkedIn",
    icon: (
      <path d="M20.447 20.452h-3.554v-5.569c0-1.328-.027-3.037-1.852-3.037-1.853 0-2.136 1.445-2.136 2.939v5.667H9.351V9h3.414v1.561h.046c.477-.9 1.637-1.85 3.37-1.85 3.601 0 4.267 2.37 4.267 5.455v6.286zM5.337 7.433c-1.144 0-2.063-.926-2.063-2.065 0-1.138.92-2.063 2.063-2.063 1.14 0 2.064.925 2.064 2.063 0 1.139-.925 2.065-2.064 2.065zm1.782 13.019H3.555V9h3.564v11.452zM22.225 0H1.771C.792 0 0 .774 0 1.729v20.542C0 23.227.792 24 1.771 24h20.451C23.2 24 24 23.227 24 22.271V1.729C24 .774 23.2 0 22.222 0h.003z" />
    ),
  },
  {
    href: "mailto:evandrofonsecajunior@gmail.com",
    label: "Email",
    icon: (
      <>
        <path d="M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z" />
        <polyline points="22,6 12,13 2,6" />
      </>
    ),
    stroke: true,
  },
];

const HERO_CONTENT = {
  status: "Disponível para novas oportunidades",
  chip: "Garuva · Joinville · Curitiba · Remoto",
  eyebrow:
    "Evandro Fonseca Junior | Engenheiro da Computação e Desenvolvedor de Software",
  headline:
    "Engenharia de software para sistemas que precisam operar de verdade.",
  subtitle:
    "Profissional disponível para oportunidades CLT e PJ em Garuva, Joinville, Norte de Santa Catarina e Curitiba; também atuo em consultoria para produtos, integrações e sistemas críticos.",
  cta: "Conversar sobre uma oportunidade",
  whatsappMessage:
    "Olá! Quero conversar sobre uma oportunidade profissional em engenharia de software.",
  sideLabel: "Contato profissional direto",
  sideTitle: "Procurando um engenheiro da computação para o seu time?",
  sideText:
    "Vamos conversar sobre o contexto técnico, o desafio da vaga e como posso contribuir da arquitetura à entrega.",
  points: [
    "Engenharia full-stack com base em sistemas e integrações.",
    "Next.js, TypeScript, Rust, IoT e arquitetura de software.",
    "Disponível para times do Norte de SC, Curitiba e atuação remota.",
  ],
  proof: [
    {
      label: "Operação",
      value: "Fluxo pensado para discovery, build, deploy e sustentação.",
    },
    {
      label: "Clareza",
      value: "Menos ruído entre produto, engenharia e decisão técnica.",
    },
    {
      label: "Resultado",
      value: "Base pronta para operar, evoluir e receber próximo ciclo.",
    },
  ],
} as const;

function getGreeting(message: string) {
  const hour = new Date().getHours();
  if (hour >= 8 && hour < 12) return `Bom dia! ${message}`;
  if (hour >= 13 && hour < 18) return `Boa tarde! ${message}`;
  return message;
}

export default function Hero() {
  const heroRef = useRef<HTMLElement>(null);
  const shouldReduceMotion = useReducedMotion() ?? true;
  const [shouldRenderHeroScene, setShouldRenderHeroScene] = useState(false);
  const [isHeroVisible, setIsHeroVisible] = useState(true);

  useEffect(() => {
    const reducedMotion = window.matchMedia(
      "(prefers-reduced-motion: reduce)",
    ).matches;
    const coarsePointer = window.matchMedia("(pointer: coarse)").matches;

    if (
      !shouldLoadHeroScene({
        reducedMotion,
        coarsePointer,
        width: window.innerWidth,
      })
    ) {
      return;
    }

    const timer = window.setTimeout(() => setShouldRenderHeroScene(true), 1500);
    return () => window.clearTimeout(timer);
  }, []);
  useEffect(() => {
    const hero = heroRef.current;
    if (!hero || !("IntersectionObserver" in window)) return undefined;

    const observer = new IntersectionObserver(
      ([entry]) => setIsHeroVisible(entry?.isIntersecting ?? false),
      { threshold: 0 },
    );
    observer.observe(hero);
    return () => observer.disconnect();
  }, []);

  const handleWhatsAppClick = () => {
    window.open(
      buildWhatsAppUrl(getGreeting(HERO_CONTENT.whatsappMessage)),
      "_blank",
      "noopener,noreferrer",
    );
  };

  const heroContainer: Variants = {
    hidden: shouldReduceMotion ? { opacity: 1 } : { opacity: 0 },
    visible: {
      opacity: 1,
      transition: shouldReduceMotion
        ? { duration: 0 }
        : { staggerChildren: 0.1, delayChildren: 0.3 },
    },
  };

  const easeOut: [number, number, number, number] = [0.16, 1, 0.3, 1];

  const heroItem: Variants = {
    hidden: shouldReduceMotion
      ? { opacity: 1, y: 0, filter: "blur(0px)" }
      : { opacity: 0, y: 40, filter: "blur(10px)" },
    visible: {
      opacity: 1,
      y: 0,
      filter: "blur(0px)",
      transition: shouldReduceMotion
        ? { duration: 0 }
        : { duration: 1, ease: easeOut },
    },
  };

  const heroItemSlow: Variants = {
    hidden: shouldReduceMotion
      ? { opacity: 1, y: 0, filter: "blur(0px)" }
      : { opacity: 0, y: 60, filter: "blur(12px)" },
    visible: {
      opacity: 1,
      y: 0,
      filter: "blur(0px)",
      transition: shouldReduceMotion
        ? { duration: 0 }
        : { duration: 1.2, ease: easeOut },
    },
  };

  return (
    <section
      ref={heroRef}
      id="home"
      className="relative flex min-h-[100svh] w-full items-center overflow-hidden bg-[var(--ink)] text-[#f4f2ed]"
    >
      {shouldRenderHeroScene && <HeroScene isVisible={isHeroVisible} />}

      <div className="pointer-events-none absolute inset-0 z-[1] bg-[radial-gradient(ellipse_80%_60%_at_50%_40%,transparent_0%,rgba(10,10,10,0.4)_50%,var(--ink)_100%)]" />
      <div className="pointer-events-none absolute inset-0 z-[1] bg-gradient-to-b from-transparent via-transparent to-[var(--ink)]" />
      <div
        className="pointer-events-none absolute inset-0 z-[2] opacity-[0.015]"
        style={{
          backgroundImage:
            "repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px)",
        }}
      />
      <div className="pointer-events-none absolute inset-0 z-[2] bg-[radial-gradient(circle_at_50%_50%,transparent_40%,rgba(10,10,10,0.6)_100%)]" />

      {/* pt >= altura do header fixo (52px): conteúdo do hero nunca nasce sob a barra */}
      <div className="relative z-10 mx-auto flex w-full max-w-[1240px] flex-col px-sp-6 pt-sp-16 pb-sp-16 lg:max-h-none lg:px-sp-16 lg:pt-sp-14 lg:pb-sp-12">
        <motion.div
          initial={shouldReduceMotion ? false : "hidden"}
          animate="visible"
          variants={heroContainer}
          className="grid grid-cols-[minmax(0,1fr)] items-start gap-sp-8 lg:grid-cols-[minmax(0,1.1fr)_minmax(340px,0.9fr)] lg:gap-sp-10"
        >
          <div className="max-w-[800px]">
            <motion.div
              className="mb-sp-5 flex flex-wrap items-center gap-sp-3"
              variants={heroItem}
            >
              <div className="cinematic-glass inline-flex items-center gap-sp-3 px-4 py-2">
                <motion.span
                  className="h-2 w-2 rounded-sm bg-[var(--slash)]"
                  animate={
                    shouldReduceMotion
                      ? { opacity: 1 }
                      : {
                          opacity: [1, 0.25, 1],
                          boxShadow: [
                            "0 0 4px rgba(204,255,0,0.6)",
                            "0 0 12px rgba(204,255,0,0.2)",
                            "0 0 4px rgba(204,255,0,0.6)",
                          ],
                        }
                  }
                  transition={
                    shouldReduceMotion
                      ? { duration: 0 }
                      : {
                          duration: 2,
                          ease: "easeInOut",
                          repeat: Number.POSITIVE_INFINITY,
                        }
                  }
                />
                <span className="font-mono text-[10px] uppercase tracking-[0.12em] text-[rgba(244,242,237,.82)]">
                  {HERO_CONTENT.status}
                </span>
              </div>
              <div className="cinematic-glass inline-flex items-center gap-sp-2 px-4 py-2 text-[11px] text-[rgba(244,242,237,.72)]">
                {HERO_CONTENT.chip}
              </div>
            </motion.div>

            <motion.p
              className="mb-sp-4 max-w-[560px] font-mono text-[10px] uppercase tracking-[0.12em] text-[var(--slash)]"
              variants={heroItem}
            >
              {HERO_CONTENT.eyebrow}
            </motion.p>

            <motion.h1
              className="max-w-[940px] font-display text-[clamp(1.9rem,5.2vw,4.75rem)] font-extrabold leading-[0.95] tracking-[-0.055em] lg:leading-[0.9] lg:text-balance"
              variants={heroItemSlow}
            >
              {HERO_CONTENT.headline}
            </motion.h1>

            <motion.p
              className="mt-sp-6 max-w-[700px] text-[16px] leading-8 text-[rgba(244,242,237,.88)] lg:text-[17px]"
              variants={heroItem}
            >
              {HERO_CONTENT.subtitle}
            </motion.p>

            <motion.ul
              className="mt-sp-8 grid gap-sp-3 sm:grid-cols-3"
              variants={heroItem}
            >
              {HERO_CONTENT.points.map((point, i) => (
                <motion.li
                  key={point}
                  className="cinematic-glass flex min-w-0 gap-sp-3 px-sp-4 py-sp-4 text-[13px] leading-6 text-[rgba(244,242,237,.82)]"
                  initial={
                    shouldReduceMotion
                      ? false
                      : { opacity: 0, y: 30, scale: 0.95 }
                  }
                  animate={{ opacity: 1, y: 0, scale: 1 }}
                  transition={
                    shouldReduceMotion
                      ? { duration: 0 }
                      : {
                          duration: 0.8,
                          delay: 0.8 + i * 0.1,
                          ease: [0.16, 1, 0.3, 1],
                        }
                  }
                >
                  <span className="mt-[8px] h-1.5 w-1.5 shrink-0 rounded-full bg-[var(--slash)] shadow-[0_0_8px_rgba(204,255,0,0.5)]" />
                  <span>{point}</span>
                </motion.li>
              ))}
            </motion.ul>

            <motion.div
              className="mt-sp-8 flex flex-wrap items-center gap-sp-4"
              variants={heroItem}
            >
              <MagneticButton
                as="button"
                type="button"
                onClick={handleWhatsAppClick}
                className="cinematic-cta-primary inline-flex min-h-12 items-center justify-center px-sp-8 font-mono text-[11px] font-bold uppercase tracking-[0.1em] text-[#0A0A0A] no-underline"
                strength={0.25}
              >
                <span className="relative z-10">{HERO_CONTENT.cta}</span>
              </MagneticButton>

              <MagneticButton
                as="a"
                href="/cases"
                className="cinematic-cta-secondary inline-flex min-h-12 items-center justify-center px-sp-8 font-mono text-[11px] font-bold uppercase tracking-[0.1em] text-[#f4f2ed] no-underline"
                strength={0.25}
              >
                Ver casos selecionados
              </MagneticButton>

              <MagneticButton
                as="a"
                href={CV_URL}
                download
                className="inline-flex min-h-12 items-center justify-center px-sp-2 text-[12px] font-medium text-[rgba(244,242,237,.76)] no-underline transition-colors duration-300 hover:text-[var(--slash)]"
                strength={0.2}
              >
                Download CV
              </MagneticButton>
            </motion.div>

            <motion.div
              className="mt-sp-10 flex flex-wrap items-center gap-x-sp-6 gap-y-sp-3 border-t border-[rgba(255,255,255,.06)] pt-sp-6"
              variants={heroItem}
            >
              <div className="inline-flex items-center gap-sp-3 text-[11px] uppercase tracking-[0.08em] text-[rgba(244,242,237,.68)]">
                <span className="h-2 w-2 rounded-full bg-[var(--slash)] shadow-[0_0_8px_var(--slash)]" />
                Garuva, SC / Brasil
              </div>
              <div className="inline-flex items-center gap-sp-3 text-[11px] uppercase tracking-[0.08em] text-[rgba(244,242,237,.68)]">
                <span className="h-[1px] w-6 bg-[rgba(255,255,255,.2)]" />
                Next.js, Tauri, Rust, Node.js
              </div>
              <div className="flex items-center gap-sp-2">
                {SOCIAL_LINKS.map((link) => (
                  <MagneticButton
                    key={link.label}
                    as="a"
                    href={link.href}
                    aria-label={link.label}
                    target={link.href.startsWith("http") ? "_blank" : undefined}
                    rel={
                      link.href.startsWith("http")
                        ? "noopener noreferrer"
                        : undefined
                    }
                    className="cinematic-social-link inline-flex h-11 w-11 items-center justify-center rounded-full"
                    strength={0.4}
                  >
                    <svg
                      width="20"
                      height="20"
                      viewBox="0 0 24 24"
                      fill={link.stroke ? "none" : "currentColor"}
                      stroke={link.stroke ? "currentColor" : "none"}
                      strokeWidth={link.stroke ? "2" : undefined}
                      aria-hidden="true"
                    >
                      {link.icon}
                    </svg>
                  </MagneticButton>
                ))}
              </div>
            </motion.div>
          </div>

          <motion.aside
            className="cinematic-aside-card relative overflow-hidden p-sp-6 lg:p-sp-8"
            initial={
              shouldReduceMotion
                ? false
                : { opacity: 0, x: 60, rotateY: -8, transformPerspective: 1000 }
            }
            animate={{ opacity: 1, x: 0, rotateY: 0 }}
            transition={
              shouldReduceMotion
                ? { duration: 0 }
                : {
                    duration: 1.2,
                    delay: 0.5,
                    ease: [0.16, 1, 0.3, 1],
                  }
            }
          >
            <motion.div
              className="absolute inset-x-0 top-0 h-px bg-[linear-gradient(90deg,transparent,rgba(204,255,0,0.8),transparent)]"
              initial={shouldReduceMotion ? false : { scaleX: 0 }}
              animate={{ scaleX: 1 }}
              transition={
                shouldReduceMotion
                  ? { duration: 0 }
                  : {
                      duration: 1.5,
                      delay: 1,
                      ease: [0.16, 1, 0.3, 1],
                    }
              }
            />

            <div className="mb-sp-6 space-y-sp-4">
              <HeroStarfield />
              <ControlRoomGlobe autoRotate={!shouldReduceMotion} />
              <TelemetryStrip reducedMotion={shouldReduceMotion} />
            </div>

            <div className="border-b border-[rgba(255,255,255,0.08)] pb-sp-5">
              <div className="font-mono text-[10px] uppercase tracking-[0.14em] text-[var(--slash)]">
                {HERO_CONTENT.sideLabel}
              </div>
              <h2 className="mt-sp-3 font-display text-[clamp(1.35rem,3vw,2rem)] font-extrabold leading-[1.04] tracking-[-0.03em] text-[#f7f4ee]">
                {HERO_CONTENT.sideTitle}
              </h2>
              <p className="mt-sp-4 text-[14px] leading-7 text-[rgba(244,242,237,.78)]">
                {HERO_CONTENT.sideText}
              </p>
              <button
                type="button"
                onClick={handleWhatsAppClick}
                className="mt-sp-5 inline-flex w-full items-center justify-center bg-[var(--slash)] px-sp-5 py-sp-4 font-mono text-[11px] font-bold uppercase tracking-[0.1em] text-[var(--ink)] transition hover:bg-white focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[var(--slash)] focus-visible:ring-offset-2 focus-visible:ring-offset-[var(--ink)]"
              >
                {/* Ícone WhatsApp inline: lucide não tem brand icons */}
                <svg
                  aria-hidden="true"
                  viewBox="0 0 24 24"
                  fill="currentColor"
                  className="h-4 w-4"
                >
                  <path d="M12.04 2a9.88 9.88 0 0 0-8.41 4.7A9.88 9.88 0 0 0 2.1 12.6a9.8 9.8 0 0 0 1.34 5.02L2 22l4.53-1.38a9.86 9.86 0 0 0 5.51 1.66h.01a9.87 9.87 0 0 0 7.02-2.9 9.79 9.79 0 0 0 2.89-6.98 9.73 9.73 0 0 0-.29-2.35A9.88 9.88 0 0 0 12.04 2Zm5.77 13.94c-.24.68-1.42 1.3-1.96 1.35-.5.05-1.13.24-3.8-.98-3.18-1.44-5.15-4.72-5.31-4.93-.15-.22-1.25-1.75-1.16-3.29.09-1.54.92-2.28 1.23-2.59.31-.31.66-.37.88-.36h.63c.2 0 .47-.03.71.58.26.65.88 2.25.96 2.41.08.17.13.36.02.57-.11.22-.17.35-.33.54-.17.19-.35.43-.5.58-.16.16-.33.34-.15.66.18.32.81 1.42 1.75 2.3 1.2 1.14 2.21 1.49 2.52 1.66.31.17.5.14.68-.09.18-.22.78-.99.99-1.33.21-.34.42-.27.7-.16.29.11 1.82.95 2.13 1.12.31.17.52.26.6.4.07.15.07.83-.17 1.51Z" />
                </svg>
                Agendar no WhatsApp
              </button>
            </div>

            <div className="mt-sp-6 space-y-sp-5">
              {HERO_CONTENT.proof.map((item, index) => (
                <motion.article
                  key={item.label}
                  className="border-b border-[rgba(255,255,255,0.08)] pb-sp-5 last:border-b-0 last:pb-0"
                  initial={
                    shouldReduceMotion
                      ? false
                      : { opacity: 0, y: 20, filter: "blur(6px)" }
                  }
                  animate={{ opacity: 1, y: 0, filter: "blur(0px)" }}
                  transition={
                    shouldReduceMotion
                      ? { duration: 0 }
                      : {
                          duration: 0.8,
                          delay: 0.8 + index * 0.12,
                          ease: [0.16, 1, 0.3, 1],
                        }
                  }
                >
                  <div className="font-mono text-[10px] uppercase tracking-[0.12em] text-[rgba(244,242,237,.56)]">
                    {item.label}
                  </div>
                  <p className="mt-sp-2 text-[14px] leading-7 text-[rgba(244,242,237,.92)]">
                    {item.value}
                  </p>
                </motion.article>
              ))}
            </div>
          </motion.aside>
        </motion.div>
      </div>

      <motion.div
        className="absolute bottom-8 left-1/2 z-10 -translate-x-1/2"
        initial={shouldReduceMotion ? false : { opacity: 0, y: -10 }}
        animate={{ opacity: 1, y: 0 }}
        transition={
          shouldReduceMotion ? { duration: 0 } : { delay: 2, duration: 1 }
        }
      >
        {shouldReduceMotion ? (
          <div className="flex flex-col items-center gap-2" aria-hidden="true">
            <span className="font-mono text-[10px] uppercase tracking-[0.18em] text-[rgba(244,242,237,.68)]">
              Scroll
            </span>
            <div className="h-8 w-px bg-gradient-to-b from-[var(--slash)] to-transparent opacity-50" />
          </div>
        ) : (
          <motion.div
            className="flex flex-col items-center gap-2"
            animate={{ y: [0, 8, 0] }}
            transition={{
              duration: 2,
              repeat: Number.POSITIVE_INFINITY,
              ease: "easeInOut",
            }}
          >
            <span className="font-mono text-[10px] uppercase tracking-[0.18em] text-[rgba(244,242,237,.68)]">
              Scroll
            </span>
            <div className="h-8 w-px bg-gradient-to-b from-[var(--slash)] to-transparent opacity-50" />
          </motion.div>
        )}
      </motion.div>
    </section>
  );
}