Refactor code structure for improved readability and maintainability

lib/models/chapter.ts

@@ -25,5 +25,6 @@ const ChapterSchema: Schema = new Schema({
 })
 
 ChapterSchema.index({ novelId: 1, number: 1 }, { unique: true })
+ChapterSchema.index({ createdAt: -1, novelId: 1 })
 
 export const Chapter = mongoose.models.Chapter || mongoose.model<IChapter>("Chapter", ChapterSchema)

lib/models/editor-recommendation.ts

@@ -0,0 +1,25 @@
+import mongoose, { Schema, Document } from "mongoose"
+
+export interface IEditorRecommendation extends Document {
+  novelId: string
+  editorId: string
+  createdAt: Date
+  updatedAt: Date
+}
+
+const EditorRecommendationSchema: Schema = new Schema(
+  {
+    novelId: { type: String, required: true, index: true },
+    editorId: { type: String, required: true, index: true },
+  },
+  {
+    timestamps: true,
+  }
+)
+
+EditorRecommendationSchema.index({ novelId: 1, editorId: 1 }, { unique: true })
+EditorRecommendationSchema.index({ createdAt: -1 })
+
+export const EditorRecommendation =
+  mongoose.models.EditorRecommendation ||
+  mongoose.model<IEditorRecommendation>("EditorRecommendation", EditorRecommendationSchema)

lib/models/user-recommendation.ts

@@ -0,0 +1,25 @@
+import mongoose, { Document, Schema } from "mongoose"
+
+export interface IUserRecommendation extends Document {
+  userId: string
+  novelId: string
+  createdAt: Date
+  updatedAt: Date
+}
+
+const UserRecommendationSchema: Schema = new Schema(
+  {
+    userId: { type: String, required: true, index: true },
+    novelId: { type: String, required: true, index: true },
+  },
+  {
+    timestamps: true,
+  }
+)
+
+UserRecommendationSchema.index({ userId: 1, novelId: 1 }, { unique: true })
+UserRecommendationSchema.index({ createdAt: -1 })
+
+export const UserRecommendation =
+  mongoose.models.UserRecommendation ||
+  mongoose.model<IUserRecommendation>("UserRecommendation", UserRecommendationSchema)