From 2009d1c28c4367514223c6ba1193ada405e3aab9 Mon Sep 17 00:00:00 2001
From: Kshitija Kadam <65657373+Xitija@users.noreply.github.com>
Date: Fri, 2 Aug 2024 18:14:42 +0530
Subject: [PATCH] Task #224395 : feat - Validate meeting links as per provider

---
 src/common/utils/validation.util.ts       | 41 +++++++++++++++++++++++
 src/modules/event/dto/create-event.dto.ts | 15 ++++++---
 2 files changed, 52 insertions(+), 4 deletions(-)
 create mode 100644 src/common/utils/validation.util.ts

diff --git a/src/common/utils/validation.util.ts b/src/common/utils/validation.util.ts
new file mode 100644
index 0000000..9beb877
--- /dev/null
+++ b/src/common/utils/validation.util.ts
@@ -0,0 +1,41 @@
+import {
+  ValidatorConstraint,
+  ValidatorConstraintInterface,
+  ValidationArguments,
+} from 'class-validator';
+
+function validateMeetingUrl(url, provider) {
+  const providerPatterns = {
+    zoom: /^https:\/\/[\w-]*\.?zoom.us\/(j|my)\/[\d\w?=-]+$/,
+    googlemeet: /^(https:\/\/)?meet\.google\.com\/[a-zA-Z0-9-]+$/,
+    // microsoftteams: /^(https:\/\/)?teams\.microsoft\.com\/[a-zA-Z0-9?&=]+$/,
+    // Add other supported providers as needed
+  };
+  if (
+    !url ||
+    typeof url !== 'string' ||
+    !provider ||
+    typeof provider !== 'string'
+  ) {
+    return false;
+  }
+
+  const pattern = providerPatterns[provider.toLowerCase()];
+  if (!pattern) {
+    return false; // Unsupported provider
+  }
+
+  return pattern.test(url);
+}
+
+@ValidatorConstraint({ name: 'urlWithProviderValidator', async: false })
+export class UrlWithProviderValidator implements ValidatorConstraintInterface {
+  validate(url: string, args: ValidationArguments) {
+    const { onlineProvider } = args.object as any;
+    return validateMeetingUrl(url, onlineProvider);
+  }
+
+  defaultMessage(args: ValidationArguments) {
+    return 'Invalid meeting URL for the specified provider!';
+  }
+}
diff --git a/src/modules/event/dto/create-event.dto.ts b/src/modules/event/dto/create-event.dto.ts
index f14a4ea..ebd25dc 100644
--- a/src/modules/event/dto/create-event.dto.ts
+++ b/src/modules/event/dto/create-event.dto.ts
@@ -21,7 +21,7 @@ import {
   IsIn,
 } from 'class-validator';
 import { ApiProperty } from '@nestjs/swagger';
-import { Type } from 'class-transformer';
+import { Transform, Type } from 'class-transformer';
 import {
   EndConditionType,
   EventTypes,
@@ -31,8 +31,12 @@ import {
 } from 'src/common/utils/types';
 import { ERROR_MESSAGES } from 'src/common/utils/constants.util';
 import { EndsWithZConstraint } from 'src/common/pipes/event-validation.pipe';
+import { UrlWithProviderValidator } from 'src/common/utils/validation.util';
 
 export class MeetingDetailsDto {
+  // Pass the provider from the parent DTO
+  onlineProvider: string;
+
   @ApiProperty({ description: 'Meeting ID', example: 94292617 })
   @IsString()
   @IsNotEmpty()
@@ -44,7 +48,7 @@ export class MeetingDetailsDto {
   })
   @IsString()
   @IsNotEmpty()
-  // @Validate(UrlValidator)
+  @Validate(UrlWithProviderValidator)
   url: string;
 
   @ApiProperty({ description: 'Meeting password', example: 'xxxxxx' })
@@ -253,7 +257,7 @@ export class CreateEventDto {
   @ValidateIf((o) => o.eventType === EventTypes.online)
   @IsString()
   @IsNotEmpty()
-  @IsIn(['Zoom', 'GoogleMeet', 'MicrosoftTeams']) // Supported providers
+  @IsIn(['Zoom', 'GoogleMeet']) //, 'MicrosoftTeams' // Supported providers
   onlineProvider: string;
 
   @ApiProperty({
@@ -279,8 +283,11 @@ export class CreateEventDto {
   @ValidateIf((o) => o.eventType === 'online')
   @ValidateNested({ each: true })
   @Type(() => MeetingDetailsDto)
+  @Transform(({ value, obj }) => {
+    value.onlineProvider = obj.onlineProvider; // Pass the provider to the nested DTO
+    return value;
+  })
   meetingDetails: MeetingDetails;
-  // TODO: meet url validation
 
   @ApiProperty({
     type: Number,