added is-nsfw util

packages/server/src/utils/is-nsfw/index.js

@@ -0,0 +1,23 @@
+const minumunPredictions = {
+    "Drawing": 0.8,
+    "Hentai": 0.8,
+    "Porn": 0.7,
+}
+
+export default (predictions) => {
+    if (!Array.isArray(predictions)) {
+        throw new Error("predictions must be an array")
+    }
+
+    let isNsfw = false
+
+    Object.keys(minumunPredictions).forEach((key) => {
+        const prediction = predictions.find((prediction) => prediction.className === key)
+
+        if (prediction && prediction.probability >= minumunPredictions[key]) {
+            isNsfw = true
+        }
+    })
+
+    return isNsfw
+}