import { Type } from 'class-transformer';
import {
  IsArray,
  IsBoolean,
  IsInt,
  IsOptional,
  IsString,
  Max,
  MaxLength,
  Min,
  MinLength,
  ArrayMinSize,
  ArrayMaxSize,
} from 'class-validator';

export class UpdateConversationSettingsDto {
  @IsString()
  @MinLength(3)
  @MaxLength(200)
  chatHost!: string;

  @IsOptional()
  @IsString()
  @MinLength(8)
  @MaxLength(500)
  apiKey?: string;

  @IsOptional()
  @IsString()
  @MaxLength(500)
  uploadUrl?: string;

  @IsOptional()
  @IsString()
  @MaxLength(500)
  downloadUrl?: string;
}

export class ConversationFileBytesDto {
  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(100 * 1024 * 1024)
  bytes!: number;
}

export class CreateConversationDmDto {
  @IsString()
  @MinLength(1)
  peerUserId!: string;
}

export class CreateConversationGroupDto {
  @IsString()
  @MinLength(2)
  @MaxLength(120)
  name!: string;

  @IsArray()
  @ArrayMinSize(1)
  @ArrayMaxSize(50)
  @IsString({ each: true })
  memberUserIds!: string[];
}

export class CreateConversationChannelDto {
  @IsString()
  @MinLength(2)
  @MaxLength(120)
  name!: string;

  @IsArray()
  @ArrayMinSize(1)
  @ArrayMaxSize(100)
  @IsString({ each: true })
  memberUserIds!: string[];
}

export class HideConversationMessagesDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsArray()
  @ArrayMinSize(1)
  @ArrayMaxSize(100)
  @IsString({ each: true })
  messageIds!: string[];

  /** true = حذف برای همه؛ false = فقط برای کاربر جاری */
  @IsOptional()
  @IsBoolean()
  forEveryone?: boolean;
}

export class PinConversationMessageDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsString()
  @MinLength(1)
  @MaxLength(200)
  messageId!: string;

  @IsOptional()
  @IsString()
  @MaxLength(240)
  preview?: string;
}

export class UnpinConversationMessageDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;
}

export class PinConversationRoomDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsBoolean()
  pinned!: boolean;
}

export class ConversationRoomMembersQueryDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;
}

export class AddConversationRoomMemberDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsString()
  @MinLength(1)
  userId!: string;

  @IsOptional()
  @IsString()
  role?: 'admin' | 'member';
}

export class RemoveConversationRoomMemberDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsString()
  @MinLength(1)
  userId!: string;
}

export class UpdateConversationRoomMemberRoleDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsString()
  @MinLength(1)
  userId!: string;

  @IsString()
  role!: 'admin' | 'member';
}

export class ConversationTypingDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;
}

export class MuteConversationRoomDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsBoolean()
  muted!: boolean;

  @IsOptional()
  @IsBoolean()
  allowMentions?: boolean;
}

export class ToggleMessageReactionDto {
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  externalRoomId!: string;

  @IsString()
  @MinLength(1)
  @MaxLength(200)
  messageId!: string;

  @IsString()
  @MinLength(1)
  @MaxLength(16)
  emoji!: string;
}