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PeterOchePeterOche
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Merge pull request #193 from Xaxxoo/engagements
Add social engagement module with DTOs, entities, and controller for …
2 parents 991e5f1 + 4fb3bb4 commit 45eab0a

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‎apps/backend/src/social-engagement-module/database/migrations/create-social-engagement-tables.migration.ts‎

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// src/database/migrations/create-social-engagement-tables.migration.ts
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import { MigrationInterface, QueryRunner, Table, TableIndex, TableForeignKey } from 'typeorm';
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export class CreateSocialEngagementTables1715076125000 implements MigrationInterface {
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public async up(queryRunner: QueryRunner): Promise<void> {
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// Create ContentType enum
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await queryRunner.query(`
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CREATE TYPE "content_type_enum" AS ENUM (
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'trading_signal',
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'market_analysis',
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'community_post',
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'comment'
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)
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`);
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// Create EngagementType enum
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await queryRunner.query(`
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CREATE TYPE "engagement_type_enum" AS ENUM (
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'like',
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'dislike'
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)
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`);
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// Create social_engagements table
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await queryRunner.createTable(
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new Table({
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name: 'social_engagements',
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columns: [
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{
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name: 'id',
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type: 'uuid',
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isPrimary: true,
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default: 'uuid_generate_v4()',
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},
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{
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name: 'userId',
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type: 'uuid',
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isNullable: false,
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},
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{
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name: 'contentId',
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type: 'uuid',
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isNullable: false,
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},
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{
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name: 'contentType',
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type: 'content_type_enum',
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isNullable: false,
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},
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{
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name: 'type',
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type: 'engagement_type_enum',
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isNullable: false,
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},
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{
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name: 'metadata',
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type: 'jsonb',
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isNullable: true,
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},
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{
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name: 'createdAt',
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type: 'timestamp',
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default: 'CURRENT_TIMESTAMP',
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},
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{
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name: 'updatedAt',
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type: 'timestamp',
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default: 'CURRENT_TIMESTAMP',
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},
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],
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}),
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true,
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);
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// Create engagement_counters table
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await queryRunner.createTable(
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new Table({
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name: 'engagement_counters',
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columns: [
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{
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name: 'id',
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type: 'uuid',
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isPrimary: true,
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default: 'uuid_generate_v4()',
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},
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{
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name: 'contentId',
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type: 'uuid',
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isNullable: false,
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},
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{
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name: 'contentType',
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type: 'content_type_enum',
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isNullable: false,
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},
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{
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name: 'likesCount',
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type: 'integer',
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default: 0,
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},
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{
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name: 'dislikesCount',
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type: 'integer',
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default: 0,
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},
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{
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name: 'updatedAt',
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type: 'timestamp',
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default: 'CURRENT_TIMESTAMP',
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},
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],
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}),
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true,
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);
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// Create indexes
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await queryRunner.createIndex(
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'social_engagements',
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new TableIndex({
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name: 'IDX_social_engagements_user_content',
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columnNames: ['userId', 'contentId', 'contentType'],
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isUnique: true,
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}),
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);
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await queryRunner.createIndex(
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'social_engagements',
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new TableIndex({
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name: 'IDX_social_engagements_user',
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columnNames: ['userId'],
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}),
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);
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await queryRunner.createIndex(
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'social_engagements',
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new TableIndex({
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name: 'IDX_social_engagements_content',
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columnNames: ['contentId', 'contentType'],
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}),
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);
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await queryRunner.createIndex(
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'engagement_counters',
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new TableIndex({
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name: 'IDX_engagement_counters_content',
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columnNames: ['contentId', 'contentType'],
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isUnique: true,
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}),
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);
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// Add foreign key for userId if users table exists
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const usersTableExists = await queryRunner.hasTable('users');
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if (usersTableExists) {
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await queryRunner.createForeignKey(
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'social_engagements',
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new TableForeignKey({
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columnNames: ['userId'],
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referencedColumnNames: ['id'],
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referencedTableName: 'users',
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onDelete: 'CASCADE',
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}),
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);
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}
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}
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public async down(queryRunner: QueryRunner): Promise<void> {
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// Drop foreign keys first
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const usersTableExists = await queryRunner.hasTable('users');
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if (usersTableExists) {
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const table = await queryRunner.getTable('social_engagements');
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const foreignKey = table.foreignKeys.find(
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(fk) => fk.columnNames.indexOf('userId') !== -1,
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);
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if (foreignKey) {
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await queryRunner.dropForeignKey('social_engagements', foreignKey);
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}
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}
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// Drop tables
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await queryRunner.dropTable('engagement_counters');
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await queryRunner.dropTable('social_engagements');
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// Drop enums
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await queryRunner.query(`DROP TYPE "engagement_type_enum"`);
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await queryRunner.query(`DROP TYPE "content_type_enum"`);
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}
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}

‎apps/backend/src/social-engagement-module/shared/enums/content-type.enum.ts‎

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// src/shared/enums/content-type.enum.ts
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export enum ContentType {
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TRADING_SIGNAL = 'trading_signal',
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MARKET_ANALYSIS = 'market_analysis',
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COMMUNITY_POST = 'community_post',
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COMMENT = 'comment',
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}

‎apps/backend/src/social-engagement-module/shared/enums/engagement-type.enum.ts‎

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// src/shared/enums/engagement-type.enum.ts
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export enum EngagementType {
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LIKE = 'like',
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DISLIKE = 'dislike',
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}

‎apps/backend/src/social-engagement-module/shared/interfaces/content-polymorph.interface.ts‎

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// src/shared/interfaces/content-polymorph.interface.ts
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import { ContentType } from '../enums/content-type.enum';
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export interface ContentPolymorph {
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contentId: string;
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contentType: ContentType;
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}

‎apps/backend/src/social-engagement-module/social-engagement/dto/create-engagement.dto.ts‎

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// src/social-engagement/dto/create-engagement.dto.ts
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import { IsEnum, IsNotEmpty, IsOptional, IsUUID } from 'class-validator';
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import { EngagementType } from '../../shared/enums/engagement-type.enum';
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import { ContentType } from '../../shared/enums/content-type.enum';
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export class CreateEngagementDto {
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@IsNotEmpty()
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@IsUUID()
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contentId: string;
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@IsNotEmpty()
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@IsEnum(ContentType)
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contentType: ContentType;
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@IsNotEmpty()
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@IsEnum(EngagementType)
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type: EngagementType;
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@IsOptional()
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metadata?: Record<string, any>;
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}

‎apps/backend/src/social-engagement-module/social-engagement/dto/engagement-response.dto.ts‎

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// src/social-engagement/dto/engagement-response.dto.ts
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import { EngagementType } from '../../shared/enums/engagement-type.enum';
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import { ContentType } from '../../shared/enums/content-type.enum';
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export class EngagementResponseDto {
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id: string;
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userId: string;
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contentId: string;
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contentType: ContentType;
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type: EngagementType;
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createdAt: Date;
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updatedAt: Date;
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counters: {
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likes: number;
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dislikes: number;
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};
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metadata?: Record<string, any>;
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}

‎apps/backend/src/social-engagement-module/social-engagement/entities/engagement-counter.entity.ts‎

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// src/social-engagement/entities/engagement-counter.entity.ts
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import { Entity, Column, PrimaryGeneratedColumn, Index, UpdateDateColumn } from 'typeorm';
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import { ContentType } from '../../shared/enums/content-type.enum';
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@Entity('engagement_counters')
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@Index(['contentId', 'contentType'], { unique: true })
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export class EngagementCounter {
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@PrimaryGeneratedColumn('uuid')
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id: string;
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@Column()
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@Index()
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contentId: string;
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@Column({
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type: 'enum',
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enum: ContentType,
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})
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contentType: ContentType;
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@Column({ default: 0 })
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likesCount: number;
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@Column({ default: 0 })
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dislikesCount: number;
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@UpdateDateColumn()
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updatedAt: Date;
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}

‎apps/backend/src/social-engagement-module/social-engagement/entities/social-engagement.entity.ts‎

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// src/social-engagement/entities/social-engagement.entity.ts
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import { Entity, Column, PrimaryGeneratedColumn, CreateDateColumn, UpdateDateColumn, ManyToOne, JoinColumn, Index } from 'typeorm';
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import { User } from '../../users/entities/user.entity';
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import { EngagementType } from '../../shared/enums/engagement-type.enum';
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import { ContentType } from '../../shared/enums/content-type.enum';
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@Entity('social_engagements')
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@Index(['userId', 'contentId', 'contentType'], { unique: true })
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export class SocialEngagement {
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@PrimaryGeneratedColumn('uuid')
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id: string;
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@Column()
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@Index()
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userId: string;
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@ManyToOne(() => User)
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@JoinColumn({ name: 'userId' })
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user: User;
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@Column()
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@Index()
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contentId: string;
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@Column({
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type: 'enum',
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enum: ContentType,
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})
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contentType: ContentType;
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@Column({
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type: 'enum',
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enum: EngagementType,
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})
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type: EngagementType;
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@CreateDateColumn()
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createdAt: Date;
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@UpdateDateColumn()
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updatedAt: Date;
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// Additional metadata can be stored as JSON
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@Column({ type: 'jsonb', nullable: true })
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metadata: Record<string, any>;
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}

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