import { Inject, Injectable, Logger } from '@nestjs/common';
import { IAssetRepository, WithoutProperty } from '../asset';
import { MACHINE_LEARNING_ENABLED } from '../domain.constant';
import { usePagination } from '../domain.util';
import { IAssetJob, IBaseJob, IJobRepository, JobName, JOBS_ASSET_PAGINATION_SIZE } from '../job';
import { IMachineLearningRepository } from './machine-learning.interface';
import { ISmartInfoRepository } from './smart-info.repository';

@Injectable()
export class SmartInfoService {
  private logger = new Logger(SmartInfoService.name);

  constructor(
    @Inject(IAssetRepository) private assetRepository: IAssetRepository,
    @Inject(IJobRepository) private jobRepository: IJobRepository,
    @Inject(ISmartInfoRepository) private repository: ISmartInfoRepository,
    @Inject(IMachineLearningRepository) private machineLearning: IMachineLearningRepository,
  ) {}

  async handleQueueObjectTagging({ force }: IBaseJob) {
    try {
      const assetPagination = usePagination(JOBS_ASSET_PAGINATION_SIZE, (pagination) => {
        return force
          ? this.assetRepository.getAll(pagination)
          : this.assetRepository.getWithout(pagination, WithoutProperty.OBJECT_TAGS);
      });

      for await (const assets of assetPagination) {
        for (const asset of assets) {
          await this.jobRepository.queue({ name: JobName.CLASSIFY_IMAGE, data: { asset } });
          await this.jobRepository.queue({ name: JobName.DETECT_OBJECTS, data: { asset } });
        }
      }
    } catch (error: any) {
      this.logger.error(`Unable to queue object tagging`, error?.stack);
    }
  }

  async handleDetectObjects(data: IAssetJob) {
    const { asset } = data;

    if (!MACHINE_LEARNING_ENABLED || !asset.resizePath) {
      return;
    }

    try {
      const objects = await this.machineLearning.detectObjects({ thumbnailPath: asset.resizePath });
      if (objects.length > 0) {
        await this.repository.upsert({ assetId: asset.id, objects });
        await this.jobRepository.queue({ name: JobName.SEARCH_INDEX_ASSET, data: { ids: [asset.id] } });
      }
    } catch (error: any) {
      this.logger.error(`Unable run object detection pipeline: ${asset.id}`, error?.stack);
    }
  }

  async handleClassifyImage(data: IAssetJob) {
    const { asset } = data;

    if (!MACHINE_LEARNING_ENABLED || !asset.resizePath) {
      return;
    }

    try {
      const tags = await this.machineLearning.classifyImage({ thumbnailPath: asset.resizePath });
      if (tags.length > 0) {
        await this.repository.upsert({ assetId: asset.id, tags });
        await this.jobRepository.queue({ name: JobName.SEARCH_INDEX_ASSET, data: { ids: [asset.id] } });
      }
    } catch (error: any) {
      this.logger.error(`Unable to run image tagging pipeline: ${asset.id}`, error?.stack);
    }
  }

  async handleQueueEncodeClip({ force }: IBaseJob) {
    try {
      const assetPagination = usePagination(JOBS_ASSET_PAGINATION_SIZE, (pagination) => {
        return force
          ? this.assetRepository.getAll(pagination)
          : this.assetRepository.getWithout(pagination, WithoutProperty.CLIP_ENCODING);
      });

      for await (const assets of assetPagination) {
        for (const asset of assets) {
          await this.jobRepository.queue({ name: JobName.ENCODE_CLIP, data: { asset } });
        }
      }
    } catch (error: any) {
      this.logger.error(`Unable to queue clip encoding`, error?.stack);
    }
  }

  async handleEncodeClip(data: IAssetJob) {
    const { asset } = data;

    if (!MACHINE_LEARNING_ENABLED || !asset.resizePath) {
      return;
    }

    try {
      const clipEmbedding = await this.machineLearning.encodeImage({ thumbnailPath: asset.resizePath });
      await this.repository.upsert({ assetId: asset.id, clipEmbedding: clipEmbedding });
      await this.jobRepository.queue({ name: JobName.SEARCH_INDEX_ASSET, data: { ids: [asset.id] } });
    } catch (error: any) {
      this.logger.error(`Unable run clip encoding pipeline: ${asset.id}`, error?.stack);
    }
  }
}