first commit

src/modules/chat/schemas/message.schema.ts

@@ -0,0 +1,33 @@
+import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
+import { HydratedDocument, Types } from 'mongoose';
+import { User } from '../../users/schemas/user.schema';
+
+export type MessageDocument = HydratedDocument<Message>;
+
+@Schema({ timestamps: true, versionKey: false })
+export class Message {
+  @Prop({ type: Types.ObjectId, required: true, index: true })
+  conversationId!: Types.ObjectId;
+
+  @Prop({ type: Types.ObjectId, ref: User.name, required: true, index: true })
+  senderId!: Types.ObjectId;
+
+  @Prop({ required: false, default: '', maxlength: 4000 })
+  content!: string;
+
+  @Prop({ enum: ['text', 'image', 'video', 'audio'], default: 'text', index: true })
+  messageType!: 'text' | 'image' | 'video' | 'audio';
+
+  @Prop({ required: false, default: '' })
+  mediaUrl!: string;
+
+  @Prop({ type: [Types.ObjectId], ref: User.name, default: [] })
+  seenBy!: Types.ObjectId[];
+
+  @Prop({ default: false, index: true })
+  isUnsent!: boolean;
+}
+
+export const MessageSchema = SchemaFactory.createForClass(Message);
+MessageSchema.index({ conversationId: 1, createdAt: -1 });
+MessageSchema.index({ conversationId: 1, isUnsent: 1, createdAt: -1 });