import { ArrayMinSize, IsArray, IsBoolean, IsIn, IsNotEmpty, IsOptional, IsString, ValidateIf, ValidateNested } from 'class-validator';
import { Type } from 'class-transformer';
import {
  DEV_PLAN_TASK_STATUSES,
  DEV_PLAN_TASK_TYPES,
  DEV_PLAN_VERSION_STATUSES,
} from '@dukang/shared-types';

export class DevPlanTaskListQueryDto {
  @IsOptional()
  @IsString()
  status?: string;

  @IsOptional()
  @IsString()
  type?: string;

  @IsOptional()
  @IsString()
  keyword?: string;

  @IsOptional()
  page?: number;

  @IsOptional()
  pageSize?: number;
}

export class CreateDevPlanTaskDto {
  @IsString()
  @IsNotEmpty()
  content!: string;

  @IsIn(DEV_PLAN_TASK_TYPES)
  type!: string;

  @IsOptional()
  @IsString()
  supportTicketId?: string;
}

export class UpdateDevPlanTaskDto {
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  content?: string;

  @IsOptional()
  @IsIn(DEV_PLAN_TASK_TYPES)
  type?: string;

  @IsOptional()
  @IsIn(DEV_PLAN_TASK_STATUSES)
  status?: string;
}

export class CreateDevPlanVersionDto {
  @IsString()
  @IsNotEmpty()
  versionNo!: string;

  @IsOptional()
  @IsString()
  content?: string;

  @IsOptional()
  @IsIn(DEV_PLAN_VERSION_STATUSES)
  status?: string;

  @IsOptional()
  @IsArray()
  @IsString({ each: true })
  taskIds?: string[];
}

export class UpdateDevPlanVersionDto {
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  versionNo?: string;

  @IsOptional()
  @IsString()
  content?: string;

  @IsOptional()
  @IsIn(DEV_PLAN_VERSION_STATUSES)
  status?: string;

  @IsOptional()
  @IsArray()
  @IsString({ each: true })
  taskIds?: string[];
}

export class ReplaceVersionTasksDto {
  @IsArray()
  @IsString({ each: true })
  taskIds!: string[];
}

export class UpdateDevPlanSettingsDto {
  @IsOptional()
  @IsString()
  reviewAssistantLlmConfigId?: string | null;

  @IsOptional()
  @IsString()
  reviewAssistantKnowledgeBaseId?: string | null;

  @IsOptional()
  @IsString()
  reviewAssistantPrompt?: string | null;
}

export class DevPlanTaskDispatchDto {
  @IsArray()
  @ArrayMinSize(1)
  @IsString({ each: true })
  taskIds!: string[];

  @IsOptional()
  @IsString()
  supplement?: string;
}

export class DevPlanTaskFromTicketDto {
  @IsString()
  @IsNotEmpty()
  content!: string;

  @IsIn(DEV_PLAN_TASK_TYPES)
  type!: 'BUG' | 'REQUIREMENT' | 'OPTIMIZATION';
}

export class ReviewSupportTicketDto {
  @IsIn(['APPROVE', 'REJECT'])
  decision!: 'APPROVE' | 'REJECT';

  @ValidateIf((o: ReviewSupportTicketDto) => o.decision === 'REJECT')
  @IsString()
  @IsNotEmpty()
  rejectReason?: string;

  @IsOptional()
  @IsString()
  note?: string;

  @ValidateIf((o: ReviewSupportTicketDto) => o.decision === 'APPROVE')
  @IsArray()
  @ArrayMinSize(1)
  @ValidateNested({ each: true })
  @Type(() => DevPlanTaskFromTicketDto)
  tasks?: DevPlanTaskFromTicketDto[];

  @IsOptional()
  @IsBoolean()
  dispatchToWecom?: boolean;

  @IsOptional()
  @IsString()
  dispatchSupplement?: string;
}

export class DevPlanTaskBatchUpdateDto {
  @IsArray()
  @ArrayMinSize(1)
  @IsString({ each: true })
  taskIds!: string[];

  @IsOptional()
  @IsIn(DEV_PLAN_TASK_STATUSES)
  status?: string;

  @IsOptional()
  @IsString()
  versionId?: string | null;
}

export class BatchReviewPreviewDto {
  @IsArray()
  @IsString({ each: true })
  ticketIds!: string[];
}

export class BatchReviewConfirmDto {
  @IsArray()
  items!: Array<{
    ticketId: string;
    decision: 'APPROVE' | 'REJECT';
    rejectReason?: string;
    note?: string;
    tasks?: Array<{ content: string; type: 'BUG' | 'REQUIREMENT' | 'OPTIMIZATION' }>;
  }>;
}