ai modification

command.sh

@@ -0,0 +1,14 @@
+curl --location 'https://arvancloudai.ir/gateway/models/DeepSeek-V4-Flash/GShkYZ-j5g8GPs2hizngJUlGKcqhDw14rUWb0wu-eLcYjfqUVlvxAhbcBdjg5iH_FSs0uHY0ypJj94AIKmr-gotsFuKm2FqCGbNXJcBi7-2lTu3Ep_cQp_eCSvmo9y4GWUU8j26WQN7pvm-MgH-L9aH-wEdU-qsyqgSslgaPdPigDJz29XNbVmBX5uw3fMpyrJi_I8myhEAoQ9IwpPblDvyHJHgaMAHFX5NZ77PWfyrxCUWkCnlsLZwUUnQ3YEjujmNm77mDqQQ/v1/chat/completions' \
+-H 'Authorization: apikey 4fe6d150-7951-58f5-b813-2e4bd7e74734' \
+-H 'Content-Type: application/json' \
+-d '{
+  "model":"DeepSeek-V4-Flash-f5unr",
+  "messages":[
+    {
+      "role":"user",
+      "content":"چرا آسمان آبی است؟"
+    }
+  ],
+  "max_tokens":1000,
+  "temperature":0.8
+}'

d-menu.code-workspace

@@ -1,11 +1,11 @@
 {
-	"folders": [
-		{
-			"path": "."
-		},
-		{
-			"path": "../dmenu-admin"
-		}
-	],
-	"settings": {}
+  "folders": [
+    {
+      "path": ".",
+    },
+    {
+      "path": "../dmenu-admin",
+    },
+  ],
+  "settings": {},
 }

database/migrations/Migration20260723090000_addAiChats.ts

@@ -0,0 +1,59 @@
+import { Migration } from '@mikro-orm/migrations';
+
+export class Migration20260723090000_addAiChats extends Migration {
+  override async up(): Promise<void> {
+    this.addSql(`
+      create table "ai_chats" (
+        "id" char(26) not null,
+        "created_at" timestamptz not null default now(),
+        "updated_at" timestamptz not null default now(),
+        "deleted_at" timestamptz null,
+        "restaurant_id" char(26) not null,
+        "user_id" char(26) null,
+        "question" text not null,
+        "consumed_tokens" int not null,
+        "cost" numeric(10,0) not null,
+        constraint "ai_chats_pkey" primary key ("id")
+      );
+    `);
+    this.addSql(`create index "ai_chats_created_at_index" on "ai_chats" ("created_at");`);
+    this.addSql(`create index "ai_chats_deleted_at_index" on "ai_chats" ("deleted_at");`);
+    this.addSql(`create index "ai_chats_restaurant_id_index" on "ai_chats" ("restaurant_id");`);
+    this.addSql(`
+      alter table "ai_chats"
+      add constraint "ai_chats_restaurant_id_foreign"
+      foreign key ("restaurant_id") references "restaurants" ("id") on update cascade;
+    `);
+    this.addSql(`
+      alter table "ai_chats"
+      add constraint "ai_chats_user_id_foreign"
+      foreign key ("user_id") references "users" ("id") on update cascade on delete set null;
+    `);
+
+    this.addSql(`
+      alter table "restaurant_credit_transactions"
+      drop constraint if exists "restaurant_credit_transactions_reason_check";
+    `);
+    this.addSql(`
+      alter table "restaurant_credit_transactions"
+      add constraint "restaurant_credit_transactions_reason_check"
+      check ("reason" in ('sms_send', 'deposit', 'adjustment', 'ai_chat'));
+    `);
+  }
+
+  override async down(): Promise<void> {
+    this.addSql(`
+      alter table "restaurant_credit_transactions"
+      drop constraint if exists "restaurant_credit_transactions_reason_check";
+    `);
+    this.addSql(`
+      alter table "restaurant_credit_transactions"
+      add constraint "restaurant_credit_transactions_reason_check"
+      check ("reason" in ('sms_send', 'deposit', 'adjustment'));
+    `);
+
+    this.addSql(`alter table "ai_chats" drop constraint if exists "ai_chats_user_id_foreign";`);
+    this.addSql(`alter table "ai_chats" drop constraint if exists "ai_chats_restaurant_id_foreign";`);
+    this.addSql(`drop table if exists "ai_chats" cascade;`);
+  }
+}

database/migrations/Migration20260726120000_addEnableAiChatToRestaurants.ts

@@ -0,0 +1,13 @@
+import { Migration } from '@mikro-orm/migrations';
+
+export class Migration20260726120000_addEnableAiChatToRestaurants extends Migration {
+  override async up(): Promise<void> {
+    this.addSql(
+      `alter table "restaurants" add column "enable_ai_chat" boolean not null default false;`,
+    );
+  }
+
+  override async down(): Promise<void> {
+    this.addSql(`alter table "restaurants" drop column "enable_ai_chat";`);
+  }
+}

src/app.module.ts

@@ -25,6 +25,7 @@ import { ContactModule } from './modules/contact/contact.module';
 import { InventoryModule } from './modules/inventory/inventory.module';
 import { IconsModule } from './modules/icons/icons.module';
 import { SliderModule } from './modules/slider/slider.module';
+import { AiModule } from './modules/ai/ai.module';
 import { CacheModule } from '@nestjs/cache-manager';
 import { cacheConfig } from './config/cache.config';
 
@@ -61,6 +62,7 @@ import { cacheConfig } from './config/cache.config';
     InventoryModule,
     IconsModule,
     SliderModule,
+    AiModule,
   ],
   controllers: [],
   providers: [],

src/common/enums/message.enum.ts

@@ -600,6 +600,9 @@ export const enum SettingMessageEnum {
 
 export const enum AiMessage {
   NO_RESPONSE_FROM_AI_MODEL = 'خطا در دریافت پاسخ از مدل AI',
+  LLM_SERVICE_ERROR = 'سرویس هوش مصنوعی موقتاً در دسترس نیست',
+  INSUFFICIENT_CREDIT = 'اعتبار کیف پول رستوران برای استفاده از هوش مصنوعی کافی نیست',
+  AI_CHAT_DISABLED = 'چت هوش مصنوعی برای این رستوران فعال نیست',
   MESSAGE_NOT_FOUND_OR_ACCESS_DENIED = 'ایمیل یافت نشد یا دسترسی آن را ندارید',
   EMAIL_CONTENT_IS_EMPTY_OR_COULD_NOT_BE_EXTRACTED = 'محتوای ایمیل خالی است یا قابل استخراج نیست',
   DESCRIPTION_IS_REQUIRED = 'شرح و هدف قالب الزامی است',
@@ -712,6 +715,10 @@ export const enum OrderMessage {
   NO_PAID_PAYMENTS_TO_REFUND = 'پرداختی برای بازگشت وجه یافت نشد',
   ADD_PAYMENT_NOT_ALLOWED = 'امکان افزودن پرداخت برای این سفارش وجود ندارد',
   ADD_PAYMENT_NO_BALANCE = 'مانده‌ای برای پرداخت وجود ندارد',
+  PLEASE_COME_SMS_QUEUED = 'پیامک دعوت به مراجعه در صف ارسال قرار گرفت',
+  PLEASE_COME_SMS_PATTERN_MISSING = 'الگوی پیامک دعوت به مراجعه تنظیم نشده است',
+  PLEASE_COME_USER_MISSING = 'این سفارش کاربری ندارد',
+  PLEASE_COME_PHONE_MISSING = 'شماره تلفن کاربر یافت نشد',
 }
 
 export const enum CartMessage {

src/modules/ai/ai.module.ts

@@ -0,0 +1,17 @@
+import { Module } from '@nestjs/common';
+import { MikroOrmModule } from '@mikro-orm/nestjs';
+import { JwtModule } from '@nestjs/jwt';
+import { AiController } from './controllers/ai.controller';
+import { AiService } from './providers/ai.service';
+import { AiChatRepository } from './repositories/ai-chat.repository';
+import { AiChat } from './entities/ai-chat.entity';
+import { RestaurantsModule } from '../restaurants/restaurants.module';
+import { AiCrone } from './crone/ai.crone';
+
+@Module({
+  imports: [MikroOrmModule.forFeature([AiChat]), JwtModule, RestaurantsModule],
+  controllers: [AiController],
+  providers: [AiService, AiChatRepository, AiCrone],
+  exports: [AiChatRepository],
+})
+export class AiModule {}

src/modules/ai/controllers/ai.controller.ts

@@ -0,0 +1,82 @@
+import { Body, Controller, Get, Post, Query, UseGuards } from '@nestjs/common';
+import { ApiBearerAuth, ApiBody, ApiHeader, ApiOperation, ApiQuery, ApiTags } from '@nestjs/swagger';
+import { AiService } from '../providers/ai.service';
+import { ChatDto } from '../dto/chat.dto';
+import { FindAiChatsDto } from '../dto/find-ai-chats.dto';
+import { GenerateFoodDescriptionDto } from '../dto/generate-food-description.dto';
+import { GenerateFoodContentDto } from '../dto/generate-food-content.dto';
+import { OptionalAuthGuard } from '../../auth/guards/optinalAuth.guard';
+import { AdminAuthGuard } from '../../auth/guards/adminAuth.guard';
+import { RestId } from 'src/common/decorators/rest-id.decorator';
+import { UserId } from 'src/common/decorators/user-id.decorator';
+import { RestSlug } from 'src/common/decorators/rest-slug.decorator';
+import { Permissions } from 'src/common/decorators/permissions.decorator';
+import { Permission } from 'src/common/enums/permission.enum';
+import { API_HEADER_SLUG } from 'src/common/constants';
+
+@ApiTags('ai')
+@Controller()
+export class AiController {
+  constructor(private readonly aiService: AiService) {}
+
+  @UseGuards(OptionalAuthGuard)
+  @Post('public/ai/chat')
+  @ApiOperation({
+    summary: 'Ask the restaurant AI assistant about the menu',
+    description: 'Returns an answer plus any offered foods populated from AI-selected food IDs',
+  })
+  @ApiHeader(API_HEADER_SLUG)
+  @ApiHeader({
+    name: 'Authorization',
+    required: false,
+    description: 'Bearer token (optional authentication)',
+  })
+  @ApiBearerAuth()
+  @ApiBody({ type: ChatDto })
+  async chat(
+    @Body() dto: ChatDto,
+    @RestSlug() slug: string,
+    @RestId() restId?: string,
+    @UserId() userId?: string,
+  ) {
+    return this.aiService.chat(dto, {
+      restId: restId || undefined,
+      userId: userId || undefined,
+      slug,
+    });
+  }
+
+  @UseGuards(AdminAuthGuard)
+  @Permissions(Permission.UPDATE_RESTAURANT)
+  @Get('admin/ai/chats')
+  @ApiBearerAuth()
+  @ApiOperation({ summary: 'Get paginated list of AI chats for the restaurant' })
+  @ApiQuery({ name: 'page', required: false, type: Number })
+  @ApiQuery({ name: 'limit', required: false, type: Number })
+  @ApiQuery({ name: 'search', required: false, type: String })
+  @ApiQuery({ name: 'orderBy', required: false, type: String })
+  @ApiQuery({ name: 'order', required: false, enum: ['asc', 'desc'] })
+  async findAllPaginated(@RestId() restId: string, @Query() dto: FindAiChatsDto) {
+    return this.aiService.findAllPaginated(restId, dto);
+  }
+
+  @UseGuards(AdminAuthGuard)
+  @Permissions(Permission.MANAGE_FOODS)
+  @Post('admin/ai/food-description')
+  @ApiBearerAuth()
+  @ApiOperation({ summary: 'Generate a two-line food description from a food name' })
+  @ApiBody({ type: GenerateFoodDescriptionDto })
+  async generateFoodDescription(@Body() dto: GenerateFoodDescriptionDto, @RestId() restId: string) {
+    return this.aiService.generateFoodDescription(dto, restId);
+  }
+
+  @UseGuards(AdminAuthGuard)
+  @Permissions(Permission.MANAGE_FOODS)
+  @Post('admin/ai/food-content')
+  @ApiBearerAuth()
+  @ApiOperation({ summary: 'Generate food ingredients/contents from a food name' })
+  @ApiBody({ type: GenerateFoodContentDto })
+  async generateFoodContent(@Body() dto: GenerateFoodContentDto, @RestId() restId: string) {
+    return this.aiService.generateFoodContent(dto, restId);
+  }
+}

src/modules/ai/crone/ai.crone.ts

@@ -0,0 +1,44 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { Cron } from '@nestjs/schedule';
+import { CreateRequestContext } from '@mikro-orm/core';
+import { EntityManager } from '@mikro-orm/postgresql';
+import { AiChat } from '../entities/ai-chat.entity';
+
+@Injectable()
+export class AiCrone {
+  private readonly logger = new Logger(AiCrone.name);
+
+  constructor(private readonly em: EntityManager) {}
+
+  // run every day at 03:00 (3:00 AM)
+  @Cron('0 3 * * *', {
+    name: 'deleteOldAiChats',
+    timeZone: 'UTC',
+  })
+  @CreateRequestContext()
+  async handleCron() {
+    try {
+      this.logger.debug('Starting daily AI chat cleanup (removing questions older than 1 month)');
+
+      const oneMonthAgo = new Date();
+      oneMonthAgo.setMonth(oneMonthAgo.getMonth() - 1);
+
+      const oldAiChats = await this.em.find(AiChat, {
+        createdAt: { $lt: oneMonthAgo },
+      });
+
+      if (!oldAiChats || oldAiChats.length === 0) {
+        this.logger.debug('No old AI chats found to delete');
+        return;
+      }
+
+      this.logger.log(`Found ${oldAiChats.length} AI chats older than 1 month to delete`);
+
+      await this.em.removeAndFlush(oldAiChats);
+
+      this.logger.log(`Successfully deleted ${oldAiChats.length} old AI chats`);
+    } catch (err) {
+      this.logger.error(`AiCrone failed: ${err?.message}`, err);
+    }
+  }
+}

src/modules/ai/dto/chat.dto.ts

@@ -0,0 +1,13 @@
+import { IsNotEmpty, IsString, MaxLength } from 'class-validator';
+import { ApiProperty } from '@nestjs/swagger';
+
+export class ChatDto {
+  @IsNotEmpty()
+  @IsString()
+  @MaxLength(2000)
+  @ApiProperty({
+    example: 'کدام غذا برای گیاه‌خواران مناسب است؟',
+    description: 'User question for the restaurant AI assistant',
+  })
+  question!: string;
+}

src/modules/ai/dto/find-ai-chats.dto.ts

@@ -0,0 +1,37 @@
+import { IsOptional, IsNumber, IsString, IsIn, Min } from 'class-validator';
+import { ApiPropertyOptional } from '@nestjs/swagger';
+import { Type } from 'class-transformer';
+
+const sortOrderOptions = ['asc', 'desc'] as const;
+type SortOrder = (typeof sortOrderOptions)[number];
+
+export class FindAiChatsDto {
+  @IsOptional()
+  @IsNumber()
+  @Min(1)
+  @Type(() => Number)
+  @ApiPropertyOptional({ example: 1, description: 'Page number', minimum: 1, default: 1 })
+  page?: number = 1;
+
+  @IsOptional()
+  @IsNumber()
+  @Min(1)
+  @Type(() => Number)
+  @ApiPropertyOptional({ example: 10, description: 'Items per page', minimum: 1, default: 10 })
+  limit?: number = 10;
+
+  @IsOptional()
+  @IsString()
+  @ApiPropertyOptional({ example: 'گیاه‌خوار', description: 'Search in question text' })
+  search?: string;
+
+  @IsOptional()
+  @IsString()
+  @ApiPropertyOptional({ example: 'createdAt', description: 'Field to sort by', default: 'createdAt' })
+  orderBy?: string = 'createdAt';
+
+  @IsOptional()
+  @IsIn(sortOrderOptions)
+  @ApiPropertyOptional({ example: 'desc', enum: sortOrderOptions, default: 'desc' })
+  order?: SortOrder = 'desc';
+}

src/modules/ai/dto/generate-food-content.dto.ts

@@ -0,0 +1,13 @@
+import { IsNotEmpty, IsString, MaxLength } from 'class-validator';
+import { ApiProperty } from '@nestjs/swagger';
+
+export class GenerateFoodContentDto {
+  @IsNotEmpty()
+  @IsString()
+  @MaxLength(200)
+  @ApiProperty({
+    example: 'چلو کباب کوبیده',
+    description: 'Food name to generate ingredients/contents for',
+  })
+  foodName!: string;
+}

src/modules/ai/dto/generate-food-description.dto.ts

@@ -0,0 +1,13 @@
+import { IsNotEmpty, IsString, MaxLength } from 'class-validator';
+import { ApiProperty } from '@nestjs/swagger';
+
+export class GenerateFoodDescriptionDto {
+  @IsNotEmpty()
+  @IsString()
+  @MaxLength(200)
+  @ApiProperty({
+    example: 'چلو کباب کوبیده',
+    description: 'Food name to generate a short description for',
+  })
+  foodName!: string;
+}

src/modules/ai/entities/ai-chat.entity.ts

@@ -0,0 +1,23 @@
+import { Entity, Index, ManyToOne, Property } from '@mikro-orm/core';
+import { BaseEntity } from '../../../common/entities/base.entity';
+import { Restaurant } from '../../restaurants/entities/restaurant.entity';
+import { User } from '../../users/entities/user.entity';
+
+@Entity({ tableName: 'ai_chats' })
+@Index({ properties: ['restaurant'] })
+export class AiChat extends BaseEntity {
+  @ManyToOne(() => Restaurant)
+  restaurant!: Restaurant;
+
+  @ManyToOne(() => User, { nullable: true })
+  user?: User | null;
+
+  @Property({ type: 'text' })
+  question!: string;
+
+  @Property({ type: 'int' })
+  consumedTokens!: number;
+
+  @Property({ type: 'decimal', precision: 10, scale: 0 })
+  cost!: number;
+}

src/modules/ai/interface/ai-chat.interface.ts

@@ -0,0 +1,39 @@
+export interface AiChatCompletionUsage {
+  prompt_tokens: number;
+  completion_tokens: number;
+  total_tokens: number;
+}
+
+export interface AiChatCompletionChoice {
+  finish_reason?: string | null;
+  message?: {
+    role?: string;
+    content?: string | null;
+    reasoning_content?: string | null;
+  };
+}
+
+export interface AiChatCompletionResponse {
+  choices?: AiChatCompletionChoice[];
+  usage?: AiChatCompletionUsage;
+}
+
+export interface AiChatOfferedFood {
+  id: string;
+  title?: string;
+  desc?: string;
+  content?: string[];
+  price?: number;
+  images?: string[];
+  discount: number;
+  isSpecialOffer: boolean;
+}
+
+export interface AiChatResult {
+  answer: string;
+  foods: AiChatOfferedFood[];
+  consumedTokens: number;
+  cost: number;
+  promptTokens: number;
+  completionTokens: number;
+}

src/modules/ai/providers/ai.service.ts

@@ -0,0 +1,395 @@
+import {
+  BadRequestException,
+  Injectable,
+  Logger,
+  NotFoundException,
+  ServiceUnavailableException,
+} from '@nestjs/common';
+import { HttpService } from '@nestjs/axios';
+import { ConfigService } from '@nestjs/config';
+import { EntityManager } from '@mikro-orm/postgresql';
+import { AxiosError } from 'axios';
+import { catchError, firstValueFrom, throwError } from 'rxjs';
+import { ChatDto } from '../dto/chat.dto';
+import { FindAiChatsDto } from '../dto/find-ai-chats.dto';
+import { GenerateFoodDescriptionDto } from '../dto/generate-food-description.dto';
+import { GenerateFoodContentDto } from '../dto/generate-food-content.dto';
+import { AiChat } from '../entities/ai-chat.entity';
+import { AiChatRepository } from '../repositories/ai-chat.repository';
+import {
+  AiChatCompletionResponse,
+  AiChatOfferedFood,
+  AiChatResult,
+} from '../interface/ai-chat.interface';
+import { Restaurant } from '../../restaurants/entities/restaurant.entity';
+import { User } from '../../users/entities/user.entity';
+import { Food } from '../../foods/entities/food.entity';
+import { RestaurantWalletService } from '../../restaurants/providers/restaurant-wallet.service';
+import {
+  RestaurantCreditTransactionReason,
+  RestaurantCreditTransactionType,
+} from '../../restaurants/interface/restaurant-credit-transaction.interface';
+import { AiMessage, RestMessage } from 'src/common/enums/message.enum';
+import { PaginatedResult } from 'src/common/interfaces/pagination.interface';
+
+@Injectable()
+export class AiService {
+  private readonly logger = new Logger(AiService.name);
+
+  constructor(
+    private readonly em: EntityManager,
+    private readonly httpService: HttpService,
+    private readonly configService: ConfigService,
+    private readonly restaurantWalletService: RestaurantWalletService,
+    private readonly aiChatRepository: AiChatRepository,
+  ) { }
+
+  findAllPaginated(restId: string, dto: FindAiChatsDto): Promise<PaginatedResult<AiChat>> {
+    return this.aiChatRepository.findAllPaginated(restId, dto);
+  }
+
+  async chat(dto: ChatDto, params: { restId?: string; userId?: string; slug?: string }): Promise<AiChatResult> {
+    const restaurant = await this.resolveRestaurant(params.restId, params.slug);
+
+    if (!restaurant.enableAiChat) {
+      throw new BadRequestException(AiMessage.AI_CHAT_DISABLED);
+    }
+
+    const user = params.userId ? await this.em.findOne(User, { id: params.userId }) : null;
+
+    await this.ensureHasCredit(restaurant.id);
+
+    const foods = await this.em.find(
+      Food,
+      { restaurant: restaurant.id, isActive: true },
+      {
+        fields: ['id', 'title', 'desc', 'content', 'price', 'images', 'discount', 'isSpecialOffer'],
+        orderBy: { order: 'asc' },
+      },
+    );
+
+    const menuContext = this.buildMenuContext(foods);
+    const aiResponse = await this.callAiApi({
+      systemPrompt: [
+        'تو دستیار هوشمند منوی رستوران هستی.',
+        'فقط بر اساس منوی زیر به سوالات کاربر پاسخ بده.',
+        'یک توضیح کوتاه دو خطی هم اگه لازم بود اضافه کن',
+        'اگر اطلاعات کافی در منو نیست، صادقانه بگو.',
+        'وقتی غذایی پیشنهاد می‌دهی، فقط از شناسه‌های (id) موجود در منو استفاده کن.',
+        'پاسخ را فقط و فقط به صورت JSON معتبر برگردان، بدون متن اضافه یا markdown:',
+        '{"answer":"پاسخ کوتاه فارسی","foodIds":["id1","id2"]}',
+        'اگر غذایی پیشنهاد نمی‌کنی، foodIds را آرایه خالی بگذار.',
+        'هیچ وقت id غذا را داخل متن قرار نده.',
+        '',
+        'منوی رستوران:',
+        menuContext,
+      ].join('\n'),
+      userPrompt: dto.question,
+    });
+
+    const parsed = this.parseChatAiContent(aiResponse);
+    const offeredFoods = this.populateOfferedFoods(parsed.foodIds, foods);
+
+    return this.persistAiUsage({
+      restaurant,
+      user,
+      question: dto.question,
+      aiResponse,
+      answerOverride: parsed.answer,
+      foods: offeredFoods,
+    });
+  }
+
+  async generateFoodDescription(dto: GenerateFoodDescriptionDto, restId: string): Promise<AiChatResult> {
+    const restaurant = await this.resolveRestaurant(restId);
+    await this.ensureHasCredit(restaurant.id);
+
+    const aiResponse = await this.callAiApi({
+      systemPrompt: [
+        'تو نویسنده منوی رستوران هستی.',
+        'برای نام غذای داده‌شده، دقیقاً یک توضیح کوتاه دو خطی به فارسی بنویس.',
+        'فقط همان دو خط را برگردان؛ بدون عنوان، بدون بولت و بدون توضیح اضافه.',
+        'لحن باید جذاب، مختصر و مناسب منوی دیجیتال باشد.',
+      ].join('\n'),
+      userPrompt: `نام غذا: ${dto.foodName}`,
+      maxTokens: 20000,
+      temperature: 0.7,
+    });
+
+    return this.persistAiUsage({
+      restaurant,
+      question: `تولید توضیح برای غذا: ${dto.foodName}`,
+      aiResponse,
+    });
+  }
+
+  async generateFoodContent(dto: GenerateFoodContentDto, restId: string): Promise<AiChatResult> {
+    const restaurant = await this.resolveRestaurant(restId);
+    await this.ensureHasCredit(restaurant.id);
+
+    const aiResponse = await this.callAiApi({
+      systemPrompt: [
+        'تو نویسنده منوی رستوران هستی.',
+        'برای نام غذای داده‌شده، محتویات و مواد تشکیل‌دهنده را به فارسی بنویس.',
+        'فقط لیست مواد را با ویرگول فارسی (،) جدا کن؛ بدون عنوان، بدون بولت و بدون توضیح اضافه.',
+        'مواد باید رایج، مختصر و مناسب منوی دیجیتال باشد.',
+      ].join('\n'),
+      userPrompt: `نام غذا: ${dto.foodName}`,
+      maxTokens: 20000,
+      temperature: 0.7,
+    });
+
+    return this.persistAiUsage({
+      restaurant,
+      question: `تولید محتویات برای غذا: ${dto.foodName}`,
+      aiResponse,
+    });
+  }
+
+  private async ensureHasCredit(restaurantId: string): Promise<void> {
+    const balance = await this.restaurantWalletService.getCurrentBalance(restaurantId);
+    if (balance <= 0) {
+      throw new BadRequestException(AiMessage.INSUFFICIENT_CREDIT);
+    }
+  }
+
+  private async persistAiUsage(params: {
+    restaurant: Restaurant;
+    user?: User | null;
+    question: string;
+    aiResponse: AiChatCompletionResponse;
+    answerOverride?: string;
+    foods?: AiChatOfferedFood[];
+  }): Promise<AiChatResult> {
+    const { restaurant, user = null, question, aiResponse, answerOverride, foods = [] } = params;
+
+    const promptTokens = Number(aiResponse.usage?.prompt_tokens ?? 0);
+    const completionTokens = Number(aiResponse.usage?.completion_tokens ?? 0);
+    const consumedTokens = Number(aiResponse.usage?.total_tokens ?? promptTokens + completionTokens);
+    const choice = aiResponse.choices?.[0];
+    const answer = (answerOverride ?? choice?.message?.content)?.trim();
+
+    if (!answer) {
+      this.logger.error(
+        `Empty AI content. finish_reason=${choice?.finish_reason ?? 'unknown'} ` +
+        `reasoning_tokens=${choice?.message?.reasoning_content?.length ?? 0} ` +
+        `usage=${JSON.stringify(aiResponse.usage ?? null)}`,
+      );
+      throw new ServiceUnavailableException(AiMessage.NO_RESPONSE_FROM_AI_MODEL);
+    }
+
+    // Prices in .env are per 1,000,000 tokens
+    const promptTokenPricePerMillion = Number(this.configService.getOrThrow<string>('AI_PROMPT_TOKEN_PRICE_PER_MILLION'));
+    const completionTokenPricePerMillion = Number(
+      this.configService.getOrThrow<string>('AI_COMPLETION_TOKEN_PRICE_PER_MILLION'),
+    );
+    const cost = Math.ceil(
+      (promptTokens * promptTokenPricePerMillion + completionTokens * completionTokenPricePerMillion) /
+      1_000_000,
+    );
+
+    await this.em.transactional(async (em) => {
+      const aiChat = em.create(AiChat, {
+        restaurant,
+        user,
+        question,
+        consumedTokens,
+        cost,
+      });
+      await em.persistAndFlush(aiChat);
+
+      if (cost > 0) {
+        await this.restaurantWalletService.createTransaction({
+          restaurant,
+          amount: cost,
+          type: RestaurantCreditTransactionType.DEBIT,
+          reason: RestaurantCreditTransactionReason.AI_CHAT,
+          insufficientBalanceMessage: AiMessage.INSUFFICIENT_CREDIT,
+          em,
+        });
+      }
+    });
+
+    return {
+      answer,
+      foods,
+      consumedTokens,
+      cost,
+      promptTokens,
+      completionTokens,
+    };
+  }
+
+  private async resolveRestaurant(restId?: string, slug?: string): Promise<Restaurant> {
+    if (!restId && !slug) {
+      throw new BadRequestException('شناسه یا اسلاگ رستوران الزامی است');
+    }
+
+    const restaurant = await this.em.findOne(Restaurant, {
+      ...(restId ? { id: restId } : {}),
+      ...(slug ? { slug } : {}),
+    });
+
+    if (!restaurant) {
+      throw new NotFoundException(RestMessage.NOT_FOUND);
+    }
+
+    return restaurant;
+  }
+
+  private buildMenuContext(
+    foods: Array<Pick<Food, 'id' | 'title'  >>,
+  ): string {
+    if (!foods.length) {
+      return 'منوی رستوران در حال حاضر خالی است.';
+    }
+
+    return foods
+      .map((food, index) => {
+         return [
+          `${index + 1}. id: ${food.id}`,
+          `نام: ${food.title ?? 'بدون نام'}`
+        ].join('\n');
+      })
+      .join('\n\n');
+  }
+
+  private parseChatAiContent(aiResponse: AiChatCompletionResponse): {
+    answer: string;
+    foodIds: string[];
+  } {
+    const choice = aiResponse.choices?.[0];
+    const raw = choice?.message?.content?.trim();
+
+    if (!raw) {
+      this.logger.error(
+        `Empty AI content. finish_reason=${choice?.finish_reason ?? 'unknown'} ` +
+        `reasoning_tokens=${choice?.message?.reasoning_content?.length ?? 0} ` +
+        `usage=${JSON.stringify(aiResponse.usage ?? null)}`,
+      );
+      throw new ServiceUnavailableException(AiMessage.NO_RESPONSE_FROM_AI_MODEL);
+    }
+
+    const jsonPayload = this.extractJsonObject(raw);
+    if (!jsonPayload) {
+      return { answer: raw, foodIds: [] };
+    }
+
+    try {
+      const parsed = JSON.parse(jsonPayload) as { answer?: unknown; foodIds?: unknown };
+      const answer = typeof parsed.answer === 'string' ? parsed.answer.trim() : raw;
+      const foodIds = Array.isArray(parsed.foodIds)
+        ? parsed.foodIds.filter((id): id is string => typeof id === 'string' && id.length > 0)
+        : [];
+
+      return { answer: answer || raw, foodIds };
+    } catch {
+      this.logger.warn(`Failed to parse AI chat JSON response: ${raw.slice(0, 200)}`);
+      return { answer: raw, foodIds: [] };
+    }
+  }
+
+  private extractJsonObject(raw: string): string | null {
+    const fenced = raw.match(/```(?:json)?\s*([\s\S]*?)```/i);
+    if (fenced?.[1]) {
+      return fenced[1].trim();
+    }
+
+    const start = raw.indexOf('{');
+    const end = raw.lastIndexOf('}');
+    if (start === -1 || end === -1 || end <= start) {
+      return null;
+    }
+
+    return raw.slice(start, end + 1);
+  }
+
+  private populateOfferedFoods(
+    foodIds: string[],
+    menuFoods: Array<
+      Pick<Food, 'id' | 'title' | 'desc' | 'content' | 'price' | 'images' | 'discount' | 'isSpecialOffer'>
+    >,
+  ): AiChatOfferedFood[] {
+    if (!foodIds.length) {
+      return [];
+    }
+
+    const foodMap = new Map(menuFoods.map((food) => [food.id, food]));
+    const seen = new Set<string>();
+
+    return foodIds.reduce<AiChatOfferedFood[]>((acc, foodId) => {
+      if (seen.has(foodId)) {
+        return acc;
+      }
+      seen.add(foodId);
+
+      const food = foodMap.get(foodId);
+      if (!food) {
+        return acc;
+      }
+
+      acc.push({
+        id: food.id,
+        title: food.title,
+        desc: food.desc,
+        content: food.content,
+        price: food.price,
+        images: food.images,
+        discount: food.discount,
+        isSpecialOffer: food.isSpecialOffer,
+      });
+      return acc;
+    }, []);
+  }
+
+  private async callAiApi(params: {
+    systemPrompt: string;
+    userPrompt: string;
+    maxTokens?: number;
+    temperature?: number;
+  }): Promise<AiChatCompletionResponse> {
+    const apiUrl = this.configService.getOrThrow<string>('AI_API_URL');
+    const apiKey = this.configService.getOrThrow<string>('AI_API_KEY');
+    const model = this.configService.getOrThrow<string>('AI_MODEL');
+    const maxTokens = params.maxTokens ?? Number(this.configService.get('AI_MAX_TOKENS') ?? 1000);
+    const temperature = params.temperature ?? Number(this.configService.get('AI_TEMPERATURE') ?? 0.8);
+
+    try {
+      const { data } = await firstValueFrom(
+        this.httpService
+          .post<AiChatCompletionResponse>(
+            apiUrl,
+            {
+              model,
+              messages: [
+                { role: 'system', content: params.systemPrompt },
+                { role: 'user', content: params.userPrompt },
+              ],
+              max_tokens: maxTokens,
+              temperature,
+              // DeepSeek V4 thinking is on by default; CoT can exhaust max_tokens and leave content empty.
+              thinking: { type: 'disabled' },
+            },
+            {
+              headers: {
+                Authorization: `apikey ${apiKey}`,
+                'Content-Type': 'application/json',
+              },
+              timeout: 60000,
+            },
+          )
+          .pipe(
+            catchError((err: AxiosError) => {
+              this.logger.error(`AI API request failed: ${err.message}`, err.stack);
+              return throwError(() => err);
+            }),
+          ),
+      );
+
+      return data;
+    } catch (error: unknown) {
+      this.logger.error(`AI API error: ${error instanceof Error ? error.message : 'Unknown error'}`);
+      throw new ServiceUnavailableException(AiMessage.LLM_SERVICE_ERROR);
+    }
+  }
+}

src/modules/ai/repositories/ai-chat.repository.ts

@@ -0,0 +1,44 @@
+import { Injectable } from '@nestjs/common';
+import { EntityManager, EntityRepository } from '@mikro-orm/postgresql';
+import { FilterQuery } from '@mikro-orm/core';
+import { AiChat } from '../entities/ai-chat.entity';
+import { FindAiChatsDto } from '../dto/find-ai-chats.dto';
+import { PaginatedResult } from 'src/common/interfaces/pagination.interface';
+
+@Injectable()
+export class AiChatRepository extends EntityRepository<AiChat> {
+  constructor(readonly em: EntityManager) {
+    super(em, AiChat);
+  }
+
+  async findAllPaginated(restaurantId: string, dto: FindAiChatsDto): Promise<PaginatedResult<AiChat>> {
+    const { page = 1, limit = 10, search, orderBy = 'createdAt', order = 'desc' } = dto;
+
+    const offset = (page - 1) * limit;
+
+    const where: FilterQuery<AiChat> = {
+      restaurant: { id: restaurantId },
+    };
+
+    if (search) {
+      where.question = { $ilike: `%${search}%` };
+    }
+
+    const [data, total] = await this.findAndCount(where, {
+      limit,
+      offset,
+      orderBy: { [orderBy]: order.toLowerCase() as 'asc' | 'desc' },
+      populate: ['user'],
+    });
+
+    return {
+      data,
+      meta: {
+        total,
+        page,
+        limit,
+        totalPages: Math.ceil(total / limit),
+      },
+    };
+  }
+}

src/modules/cart/cart.module.ts

@@ -48,6 +48,6 @@ import { WalletTransaction } from '../users/entities/wallet-transaction.entity';
     CartCalculationService,
     CartItemService,
   ],
-  exports: [CartService],
+  exports: [CartService, CartValidationService],
 })
 export class CartModule { }

src/modules/cart/providers/cart-validation.service.ts

@@ -109,33 +109,51 @@ export class CartValidationService {
   }
 
   /**
-   * Assert address is inside restaurant service area
+   * Whether the restaurant has a usable GeoJSON polygon service area.
+   * Empty / incomplete polygons are treated as "not set".
+   */
+  hasConfiguredServiceArea(
+    serviceArea?: { type: 'Polygon'; coordinates: number[][][] } | null,
+  ): boolean {
+    if (!serviceArea?.coordinates || !Array.isArray(serviceArea.coordinates)) return false;
+
+    const ring = serviceArea.coordinates[0];
+    if (!Array.isArray(ring) || ring.length < 3) return false;
+
+    return ring.every(
+      coord =>
+        Array.isArray(coord) &&
+        coord.length >= 2 &&
+        Number.isFinite(Number(coord[0])) &&
+        Number.isFinite(Number(coord[1])),
+    );
+  }
+
+  /**
+   * Assert address is inside restaurant service area.
+   * Skips entirely when the restaurant has not configured a service area.
    */
   async assertAddressInsideServiceArea(
     restaurantId: string,
     latitude?: number | null,
     longitude?: number | null,
   ): Promise<void> {
+    const restaurant = await this.getRestaurantOrFail(restaurantId);
+
+    // If no service area is defined, assume service is available everywhere
+    if (!this.hasConfiguredServiceArea(restaurant.serviceArea)) return;
+
     if (latitude === undefined || latitude === null || longitude === undefined || longitude === null) {
       throw new BadRequestException(CartMessage.ADDRESS_NO_COORDINATES);
     }
 
-    const restaurant = await this.getRestaurantOrFail(restaurantId);
-
-    const serviceArea = restaurant.serviceArea;
-    // If no service area is defined, assume service is available everywhere
-    if (!serviceArea || !serviceArea.coordinates || !Array.isArray(serviceArea.coordinates)) return;
-
     // GeoJSON coordinates: [ [ [lng, lat], ... ] ] -> take first ring
-    const rings = serviceArea.coordinates;
-    if (!rings || rings.length === 0 || !Array.isArray(rings[0])) return;
-
-    const ring = rings[0];
+    const ring = restaurant.serviceArea!.coordinates[0];
     const point: [number, number] = [Number(longitude), Number(latitude)];
 
     // Ensure polygon has the correct tuple typing ([lng, lat] pairs)
     const polygon: [number, number][] = ring.map(
-      coord => [Number(coord[0] ?? 0), Number(coord[1] ?? 0)] as [number, number],
+      coord => [Number(coord[0]), Number(coord[1])] as [number, number],
     );
 
     if (!GeographicUtils.isPointInPolygon(point, polygon)) {

src/modules/orders/controllers/orders.controller.ts

@@ -19,6 +19,7 @@ import { FoodOrderReportDto } from '../dto/food-order-report.dto';
 import { DailyOrderReportDto } from '../dto/daily-order-report.dto';
 import { AdminRefundOrderDto } from '../dto/admin-refund-order.dto';
 import { AdminAddPaymentDto } from '../dto/admin-add-payment.dto';
+import { OrderMessage } from 'src/common/enums/message.enum';
 
 @ApiTags('orders')
 @ApiBearerAuth()
@@ -184,6 +185,16 @@ export class OrdersController {
     return this.ordersService.refundOrder(orderId, restId, dto);
   }
 
+  @UseGuards(AdminAuthGuard)
+  @Permissions(Permission.MANAGE_ORDERS)
+  @Post('admin/orders/:orderId/please-come')
+  @ApiOperation({ summary: 'Send please-come SMS to the order user' })
+  @ApiParam({ name: 'orderId', description: 'Order ID' })
+  async sendPleaseComeSms(@Param('orderId') orderId: string, @RestId() restId: string) {
+    await this.ordersService.sendPleaseComeSms(orderId, restId);
+    return { message: OrderMessage.PLEASE_COME_SMS_QUEUED };
+  }
+
   @UseGuards(AdminAuthGuard)
   @Permissions(Permission.MANAGE_ORDERS)
   @Patch('admin/orders/:orderId/:status')

src/modules/orders/providers/orders.service.ts

@@ -1,4 +1,5 @@
 import { Injectable, NotFoundException, BadRequestException, Logger } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
 import { EntityManager } from '@mikro-orm/postgresql';
 import { Order } from '../entities/order.entity';
 import { OrderItem } from '../entities/order-item.entity';
@@ -8,6 +9,7 @@ import { UserRestaurant } from '../../users/entities/user-restuarant.entity';
 import { Restaurant } from '../../restaurants/entities/restaurant.entity';
 import { Food } from '../../foods/entities/food.entity';
 import { CartService } from '../../cart/providers/cart.service';
+import { CartValidationService } from '../../cart/providers/cart-validation.service';
 import { OrderStatus, OrderUserAddress, OrderCarAddress } from '../interface/order.interface';
 import { PaymentMethodEnum, PaymentStatusEnum } from '../../payments/interface/payment';
 import { Cart } from '../../cart/interfaces/cart.interface';
@@ -36,6 +38,7 @@ import { CashShiftsService } from './cash-shifts.service';
 import { WalletTransaction } from 'src/modules/users/entities/wallet-transaction.entity';
 import { WalletTransactionReason, WalletTransactionType } from 'src/modules/users/interface/wallet';
 import { OrderMessage, PaymentMessage } from 'src/common/enums/message.enum';
+import { SmsQueueService } from 'src/modules/notifications/services/sms-queue.service';
 type OrderItemData = { food: Food; quantity: number; unitPrice: number; discount: number };
 
 type ValidatedCartForOrder = {
@@ -65,11 +68,14 @@ export class OrdersService {
   constructor(
     private readonly em: EntityManager,
     private readonly cartService: CartService,
+    private readonly cartValidationService: CartValidationService,
     private readonly orderRepository: OrderRepository,
     private readonly paymentsService: PaymentsService,
     private readonly inventoryService: InventoryService,
     private readonly eventEmitter: EventEmitter2,
     private readonly cashShiftsService: CashShiftsService,
+    private readonly smsQueueService: SmsQueueService,
+    private readonly configService: ConfigService,
   ) { }
 
   async checkout(userId: string, restaurantId: string) {
@@ -180,6 +186,14 @@ export class OrdersService {
         ? await this.resolveUserAddressForOrder(user!, dto.addressId!)
         : null;
 
+    if (userAddress) {
+      await this.cartValidationService.assertAddressInsideServiceArea(
+        restaurantId,
+        userAddress.latitude,
+        userAddress.longitude,
+      );
+    }
+
     const orderItemsData = await this.buildOrderItemsDataFromDto(dto.items, restaurantId);
 
     // Validate admin discount against item totals (not persisted — DB recomputes order money fields)
@@ -434,6 +448,14 @@ export class OrdersService {
     this.assertMeetsMinOrderForDelivery(cart, delivery);
     this.assertDeliveryMethodRequirements(cart, delivery);
 
+    if (delivery.method === DeliveryMethodEnum.DeliveryCourier && cart.userAddress) {
+      await this.cartValidationService.assertAddressInsideServiceArea(
+        restaurantId,
+        cart.userAddress.latitude,
+        cart.userAddress.longitude,
+      );
+    }
+
     const paymentMethod = await this.getPaymentMethodOrFail(cart.paymentMethodId!, restaurantId);
     this.assertPaymentMethodEnabled(paymentMethod);
     this.assertCreditCardPaymentDetails(paymentMethod, cart.paymentDesc, cart.attachments);
@@ -782,12 +804,45 @@ export class OrdersService {
     const order = await this.em.findOne(
       Order,
       { id: orderId, restaurant: { id: restId } },
-      { populate: ['paymentMethod', 'deliveryMethod', 'user'] },
+      { populate: ['paymentMethod', 'deliveryMethod', 'user', 'restaurant'] },
     );
     if (!order) throw new NotFoundException(OrderMessage.NOT_FOUND);
     return order;
   }
 
+  async sendPleaseComeSms(orderId: string, restId: string): Promise<void> {
+    const order = await this.getOrderOrFail(orderId, restId);
+    const user = order.user;
+
+    if (!user) {
+      throw new BadRequestException(OrderMessage.PLEASE_COME_USER_MISSING);
+    }
+
+    if (!user.phone) {
+      throw new BadRequestException(OrderMessage.PLEASE_COME_PHONE_MISSING);
+    }
+
+    const templateId = this.configService.get<string>('SMS_PATTERN_PLEASE_COME');
+    if (!templateId) {
+      throw new BadRequestException(OrderMessage.PLEASE_COME_SMS_PATTERN_MISSING);
+    }
+
+    this.logger.log(
+      `Queueing please-come SMS for order ${orderId} to user ${user.id} (${user.phone})`,
+    );
+
+    await this.smsQueueService.enqueue({
+      phone: user.phone,
+      templateId,
+      restaurantId: restId,
+      quantity: 1,
+      params: {
+        name: user.firstName ?? '',
+        rest: order.restaurant?.name ?? '',
+      },
+    });
+  }
+
   private assertCartHasItems(cart: Cart) {
     if (!cart.items || cart.items.length === 0) {
       throw new BadRequestException(OrderMessage.CART_EMPTY);

src/modules/restaurants/dto/create-restaurant.dto.ts

@@ -52,4 +52,9 @@ export class CreateRestaurantDto {
   @IsBoolean()
   isActive?: boolean;
 
+  @ApiPropertyOptional({ example: false, description: 'فعال بودن چت هوش مصنوعی', default: false })
+  @IsOptional()
+  @IsBoolean()
+  enableAiChat?: boolean;
+
 }

src/modules/restaurants/dto/setup-restaurant.dto.ts

@@ -51,4 +51,9 @@ export class SetupRestaurantDto {
   @IsBoolean()
   isActive?: boolean;
 
+  @ApiPropertyOptional({ example: false, description: 'فعال بودن چت هوش مصنوعی', default: false })
+  @IsOptional()
+  @IsBoolean()
+  enableAiChat?: boolean;
+
 }

src/modules/restaurants/entities/restaurant.entity.ts

@@ -40,6 +40,9 @@ export class Restaurant extends BaseEntity {
   @Property({ default: true })
   isActive: boolean = true;
 
+  @Property({ default: false })
+  enableAiChat: boolean = false;
+
   @Property({ nullable: true })
   establishedYear?: number;
 

src/modules/restaurants/interface/restaurant-credit-transaction.interface.ts

@@ -7,4 +7,5 @@ export enum RestaurantCreditTransactionReason {
   SMS_SEND = 'sms_send',
   DEPOSIT = 'deposit',
   ADJUSTMENT = 'adjustment',
+  AI_CHAT = 'ai_chat',
 }

src/modules/restaurants/providers/restaurants.service.ts

@@ -73,6 +73,7 @@ export class RestaurantsService {
         establishedYear: dto.establishedYear,
         phones: dto.phone ? [dto.phone] : undefined,
         isActive: true,
+        enableAiChat: dto.enableAiChat ?? false,
         plan: dto.plan,
         domain: `https://dmenu.danakcorp.com/${slug}`,
         subscriptionId: dto.subscriptionId,

src/seeders/restaurants.seeder.ts

@@ -14,6 +14,7 @@ export class RestaurantsSeeder {
           subscriptionStartDate: new Date('2026-01-01'),
           subscriptionEndDate: new Date('2026-01-07'),
           isActive: true,
+          enableAiChat: false,
         });
         em.persist(restaurant);
       }