init

workers/site/sdk/sdk.ts

@@ -0,0 +1,62 @@
+export class Sdk {
+  static getSeason(date: string): string {
+    const hemispheres = {
+      Northern: ["Winter", "Spring", "Summer", "Autumn"],
+      Southern: ["Summer", "Autumn", "Winter", "Spring"],
+    };
+    const d = new Date(date);
+    const month = d.getMonth();
+    const day = d.getDate();
+    const hemisphere = "Northern";
+
+    if (month < 2 || (month === 2 && day <= 20) || month === 11)
+      return hemispheres[hemisphere][0];
+    if (month < 5 || (month === 5 && day <= 21))
+      return hemispheres[hemisphere][1];
+    if (month < 8 || (month === 8 && day <= 22))
+      return hemispheres[hemisphere][2];
+    return hemispheres[hemisphere][3];
+  }
+  static getTimezone(timezone) {
+    if (timezone) {
+      return timezone;
+    }
+    return Intl.DateTimeFormat().resolvedOptions().timeZone;
+  }
+
+  static getCurrentDate() {
+    return new Date().toISOString();
+  }
+
+  static isAssetUrl(url) {
+    const { pathname } = new URL(url);
+    return pathname.startsWith("/assets/");
+  }
+
+  static selectEquitably({ a, b, c, d }, itemCount = 9) {
+    const sources = [a, b, c, d];
+    const result = {};
+
+    let combinedItems = [];
+    sources.forEach((source, index) => {
+      combinedItems.push(
+        ...Object.keys(source).map((key) => ({ source: index, key })),
+      );
+    });
+
+    combinedItems = combinedItems.sort(() => Math.random() - 0.5);
+
+    let selectedCount = 0;
+    while (selectedCount < itemCount && combinedItems.length > 0) {
+      const { source, key } = combinedItems.shift();
+      const sourceObject = sources[source];
+
+      if (!result[key]) {
+        result[key] = sourceObject[key];
+        selectedCount++;
+      }
+    }
+
+    return result;
+  }
+}