Add seasonal themes for Birthday, Olympia, Space, Sports, and Underwater: implement CSS and JavaScript for visual effects and configurations

Jellyfin.Plugin.Seasonals/Web/olympia.js

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+const config = window.SeasonalsPluginConfig?.Olympia || {};
+
+const olympia = config.EnableOlympia !== undefined ? config.EnableOlympia : true;
+const symbolCount = config.SymbolCount || 25;
+const useRandomSymbols = config.EnableRandomSymbols !== undefined ? config.EnableRandomSymbols : true;
+const enableRandomMobile = config.EnableRandomSymbolsMobile !== undefined ? config.EnableRandomSymbolsMobile : false;
+const enableDifferentDuration = config.EnableDifferentDuration !== undefined ? config.EnableDifferentDuration : true;
+
+let msgPrinted = false;
+
+function toggleOlympia() {
+  const container = document.querySelector('.olympia-container');
+  if (!container) return;
+
+  const videoPlayer = document.querySelector('.videoPlayerContainer');
+  const trailerPlayer = document.querySelector('.youtubePlayerContainer');
+  const isDashboard = document.body.classList.contains('dashboardDocument');
+  const hasUserMenu = document.querySelector('#app-user-menu');
+
+  if (videoPlayer || trailerPlayer || isDashboard || hasUserMenu) {
+    container.style.display = 'none';
+    if (!msgPrinted) {
+      console.log('Olympia hidden');
+      msgPrinted = true;
+    }
+  } else {
+    container.style.display = 'block';
+    if (msgPrinted) {
+      console.log('Olympia visible');
+      msgPrinted = false;
+    }
+  }
+}
+
+const observer = new MutationObserver(toggleOlympia);
+observer.observe(document.body, {
+  childList: true,
+  subtree: true,
+  attributes: true
+});
+
+function createOlympia() {
+    const container = document.querySelector('.olympia-container') || document.createElement('div');
+
+    if (!document.querySelector('.olympia-container')) {
+        container.className = 'olympia-container';
+        container.setAttribute("aria-hidden", "true");
+        document.body.appendChild(container);
+    }
+
+    const standardCount = 15;
+    const totalSymbols = symbolCount + standardCount;
+    
+    let isMobile = window.matchMedia("only screen and (max-width: 768px)").matches;
+    let finalCount = totalSymbols;
+
+    if (isMobile) {
+        finalCount = enableRandomMobile ? totalSymbols : standardCount;
+    }
+
+    const useRandomDuration = enableDifferentDuration !== false;
+
+    const activeItems = ['gold', 'silver', 'bronze', 'torch'];
+
+    for (let i = 0; i < finalCount; i++) {
+        let symbol = document.createElement('div');
+        
+        const randomItem = activeItems[Math.floor(Math.random() * activeItems.length)];
+        symbol.className = `olympia-symbol olympia-${randomItem}`;
+
+        let img = document.createElement('img');
+        img.src = `../Seasonals/Resources/olympia_images/${randomItem}.png`;
+        img.onerror = function() {
+            this.style.display = 'none';
+            this.parentElement.innerHTML = getOlympiaEmojiFallback(randomItem);
+        };
+        symbol.appendChild(img);
+
+        const leftPos = Math.random() * 100;
+        const delaySeconds = Math.random() * 10;
+        
+        let durationSeconds = 8;
+        if (useRandomDuration) {
+            durationSeconds = Math.random() * 5 + 6; // 6 to 11 seconds
+        }
+
+        const startRot = Math.random() * 360;
+        symbol.style.setProperty('--start-rot', `${startRot}deg`);
+        symbol.style.setProperty('--end-rot', `${startRot + (Math.random() > 0.5 ? 360 : -360)}deg`);
+
+        symbol.style.left = `${leftPos}vw`;
+        symbol.style.animationDuration = `${durationSeconds}s`;
+        symbol.style.animationDelay = `${delaySeconds}s`;
+
+        container.appendChild(symbol);
+    }
+
+    // Olympic Ring Colors
+    const confettiColors = ['#0081C8', '#FCB131', '#000000', '#00A651', '#EE334E'];
+    const confettiCount = isMobile ? 30 : 60;
+    
+    for (let i = 0; i < confettiCount; i++) {
+        let confetti = document.createElement('div');
+        confetti.className = 'olympia-confetti';
+        
+        const color = confettiColors[Math.floor(Math.random() * confettiColors.length)];
+        confetti.style.backgroundColor = color;
+        
+        const leftPos = Math.random() * 100;
+        const delaySeconds = Math.random() * 8;
+        const duration = Math.random() * 3 + 5;
+
+        confetti.style.left = `${leftPos}vw`;
+        confetti.style.animationDuration = `${duration}s`;
+        confetti.style.animationDelay = `${delaySeconds}s`;
+
+        container.appendChild(confetti);
+    }
+}
+
+function getOlympiaEmojiFallback(type) {
+    if (type === 'gold') return '🥇';
+    if (type === 'silver') return '🥈';
+    if (type === 'bronze') return '🥉';
+    if (type === 'torch') return '🔥';
+    return '';
+}
+
+function initializeOlympia() {
+  if (!olympia) return;
+  createOlympia();
+  toggleOlympia();
+}
+
+initializeOlympia();