Add custom overlay feature with configuration options for text and image

Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js

@@ -58,6 +58,9 @@ const CONFIG = {
   enableKeyboardControls: true,
   alwaysShowArrows: false,
   hideArrowsOnMobile: true,
+  enableCustomOverlay: false,
+  customOverlayText: "",
+  customOverlayImageUrl: "",
   enableCustomMediaIds: true,
   enableSeasonalContent: false,
   customMediaIds: "",
@@ -3777,6 +3780,88 @@ const slidesInit = async () => {
     return;
   }
   
+  const renderCustomOverlay = () => {
+    let activeOverlayText = CONFIG.customOverlayText;
+    let activeOverlayImage = CONFIG.customOverlayImageUrl;
+    let isSeasonOverride = false;
+
+    if (CONFIG.enableSeasonalContent && CONFIG.seasonalSections) {
+      try {
+        const sections = JSON.parse(CONFIG.seasonalSections || "[]");
+        const now = new Date();
+        const currentMonth = now.getMonth() + 1;
+        const currentDay = now.getDate();
+
+        for (const section of sections) {
+          const startMonth = parseInt(section.StartMonth);
+          const startDay = parseInt(section.StartDay);
+          const endMonth = parseInt(section.EndMonth);
+          const endDay = parseInt(section.EndDay);
+
+          let isActive = false;
+          if (startMonth === endMonth) {
+            if (currentMonth === startMonth && currentDay >= startDay && currentDay <= endDay) {
+              isActive = true;
+            }
+          } else if (startMonth < endMonth) {
+            if (currentMonth > startMonth && currentMonth < endMonth) {
+              isActive = true;
+            } else if (currentMonth === startMonth && currentDay >= startDay) {
+              isActive = true;
+            } else if (currentMonth === endMonth && currentDay <= endDay) {
+              isActive = true;
+            }
+          } else { // Wraps around year
+            if (currentMonth > startMonth || currentMonth < endMonth) {
+              isActive = true;
+            } else if (currentMonth === startMonth && currentDay >= startDay) {
+              isActive = true;
+            } else if (currentMonth === endMonth && currentDay <= endDay) {
+              isActive = true;
+            }
+          }
+
+          if (isActive) {
+            if (section.OverlayText || section.OverlayImageUrl) {
+                isSeasonOverride = true;
+                if (section.OverlayText) activeOverlayText = section.OverlayText;
+                if (section.OverlayImageUrl) activeOverlayImage = section.OverlayImageUrl;
+            }
+            break;
+          }
+        }
+      } catch (e) {
+        console.error("🎬 Media Bar:", "Error parsing seasonal sections for overlay:", e);
+      }
+    }
+
+    if (!CONFIG.enableCustomOverlay && !isSeasonOverride) {
+      return; 
+    }
+
+    if (!activeOverlayText && !activeOverlayImage) return;
+
+    const overlayContainer = document.createElement("div");
+    overlayContainer.className = "custom-overlay-container";
+
+    if (activeOverlayImage) {
+      const img = document.createElement("img");
+      img.className = "custom-overlay-image";
+      img.src = activeOverlayImage;
+      overlayContainer.appendChild(img);
+    } else if (activeOverlayText) {
+      const p = document.createElement("p");
+      p.className = "custom-overlay-text";
+      p.textContent = activeOverlayText;
+      overlayContainer.appendChild(p);
+    }
+
+    const slidesContainer = document.getElementById("slides-container");
+    if (slidesContainer) {
+      slidesContainer.appendChild(overlayContainer);
+    }
+  };
+  
   if (CONFIG.enableClientSideSettings) {
       MediaBarEnhancedSettingsManager.init();
       const isClientSideEnabled = MediaBarEnhancedSettingsManager.getSetting('enabled', true);
@@ -3875,6 +3960,8 @@ const slidesInit = async () => {
 
     initArrowNavigation();
 
+    renderCustomOverlay();
+
     await SlideshowManager.loadSlideshowData();
 
     SlideshowManager.initTouchEvents();