<template>
<section class="hero">
    <div class="hero-bg"></div>
    <div class="hero-overlay"></div>

    <div class="hero-content">
        <h1 class="hero-title animate-fade">
            <GradientText>Travel.</GradientText><br>
            <span>On the Edge</span>
        </h1>

        <p class="hero-subtitle animate-slide">
            We don't go wherever is trendy. <br/>
            We set the trends.
        </p>
        <div class="hero-buttons">
            <EdgyButton classes="btn-secondary">View Adventures</EdgyButton>
        </div>
    </div>
    <ScrollIndicator />
</section>
</template>

<style scoped>
/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120%;
  background-image: url('/img/hero.jpg');
  background-size: cover;
  background-position: center;
  will-change: transform;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120%;
  background: var(--gradient-hero);
  opacity: 0.8;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 1000px;
  padding: 0 2rem;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: bold;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: var(--muted-foreground);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.hero-title,
.hero-subtitle {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 1000ms cubic-bezier(.22,.9,.32,1),
  transform 1000ms cubic-bezier(.22,.9,.32,1);
  will-change: opacity, transform;
}

/* visible state toggled by JS */
.hero-title.is-visible,
.hero-subtitle.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 640px) {
  .hero-buttons {
      flex-direction: row;
      justify-content: center;
  }
}
@media (max-width: 767px) {

  .hero-content {
      padding: 0 1rem;
  }
}
</style>

<script setup lang="ts">

import EdgyButton from "@/components/dredgy/EdgyButton.vue";
import GradientText from "@/components/dredgy/GradientText.vue";
import { onMounted } from "vue";
import ScrollIndicator from "@/components/dredgy/ScrollIndicator.vue";

const initParallax = (): void => {
    const heroBackground = document.querySelector('.hero-bg') as HTMLElement | null;
    const heroSection = document.querySelector('.hero') as HTMLElement | null;
    if (!heroBackground || !heroSection) return;

    window.addEventListener('scroll', () => {
        const scrolled = window.pageYOffset;
        const heroRect = heroSection.getBoundingClientRect();
        const heroHeight = heroSection.offsetHeight;

        if (heroRect.bottom > 0) {
            const rate = scrolled * -0.15;
            const maxMovement = heroHeight * 0.1;
            const constrainedRate = Math.max(rate, -maxMovement);

            heroBackground.style.transform = `translateY(${constrainedRate}px)`;
        }
    });
};

// Add loading animations

const initLoadingAnimations = (): void => {
    document.body.classList.add('loaded');

    const heroTitle = document.querySelector('.hero-title') as HTMLElement | null;
    const heroSubtitle = document.querySelector('.hero-subtitle') as HTMLElement | null;

    if (heroTitle) {
        setTimeout(() => {
            // force reflow (safe), then add class to trigger transition
            void heroTitle.offsetWidth;
            heroTitle.classList.add('is-visible');
        }, 500);
    }

    if (heroSubtitle) {
        setTimeout(() => {
            void heroSubtitle.offsetWidth;
            heroSubtitle.classList.add('is-visible');
        }, 750);
    }
};

onMounted(() => {
    initParallax()
    initLoadingAnimations()
})
</script>
