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src/modules/learning/model/Abstractions/ILearning.ts

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+import { Schema } from "mongoose";
+
+export interface ILearning {
+  title: string;
+  description: string;
+  videoUrl: string;
+  cover: string;
+  category: Schema.Types.ObjectId;
+  deleted: boolean;
+}

src/modules/learning/model/Abstractions/ILearningCategory.ts

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+export interface ILearningCategory {
+  title: string;
+  deleted: boolean;
+}

src/modules/learning/model/Abstractions/ILearningProgress.ts

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+import { Schema } from "mongoose";
+
+export interface ILearningProgress {
+  sellerId: Schema.Types.ObjectId;
+  videoId: Schema.Types.ObjectId;
+  watchedAt?: Date;
+}

src/modules/learning/model/learning.model.ts

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+import { Schema, model } from "mongoose";
+
+import { ILearning } from "./Abstractions/ILearning";
+
+const LearningSchema = new Schema<ILearning>(
+  {
+    title: { type: String, required: true },
+    description: { type: String, required: true },
+    videoUrl: { type: String, required: true },
+    cover: { type: String, required: true },
+    category: { type: Schema.Types.ObjectId, ref: "LearningCategory", required: true },
+    deleted: { type: Boolean, default: false },
+  },
+  {
+    timestamps: true,
+    toJSON: { versionKey: false, virtuals: true },
+    id: false,
+  },
+);
+
+const LearningModel = model<ILearning>("Learning", LearningSchema);
+
+export { LearningModel };

src/modules/learning/model/learningCategory.model.ts

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+import { Schema, model } from "mongoose";
+
+import { ILearningCategory } from "./Abstractions/ILearningCategory";
+
+const LearningCategorySchema = new Schema<ILearningCategory>(
+  {
+    title: { type: String, required: true, unique: true },
+    deleted: { type: Boolean, default: false },
+  },
+  {
+    timestamps: true,
+    toJSON: { versionKey: false, virtuals: true },
+    id: false,
+  },
+);
+
+const LearningCategoryModel = model<ILearningCategory>("LearningCategory", LearningCategorySchema);
+
+export { LearningCategoryModel };

src/modules/learning/model/learningProgress.model.ts

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+import { Schema, model } from "mongoose";
+
+import { ILearningProgress } from "./Abstractions/ILearningProgress";
+
+const LearningProgressSchema = new Schema<ILearningProgress>(
+  {
+    sellerId: { type: Schema.Types.ObjectId, ref: "Seller", required: true },
+    videoId: { type: Schema.Types.ObjectId, ref: "Learning", required: true },
+    watchedAt: { type: Date },
+  },
+  {
+    timestamps: true,
+    toJSON: { versionKey: false, virtuals: true },
+    id: false,
+  },
+);
+
+// Defining a unique compound index for sellerId and videoId
+LearningProgressSchema.index({ sellerId: 1, videoId: 1 }, { unique: true });
+
+const LearningProgressModel = model<ILearningProgress>("LearningProgress", LearningProgressSchema);
+
+export { LearningProgressModel };