package api

import (
	"ZhenTuLocalPassiveAdapter/logger"
	"ZhenTuLocalPassiveAdapter/util"
	"context"
	"fmt"

	"go.uber.org/zap"
	"golang.org/x/sync/errgroup"
)

// UploadFaceDataWithProcessing 带图像处理的上传流程
// 根据服务器返回的配置处理图像后上传
func UploadFaceDataWithProcessing(ctx context.Context, scenicId int64, deviceNo string, faceImg, srcImg []byte, faceRect [4]int, facePos FacePositionInfo) error {
	// 1. 获取上传配置（包含图像处理配置）
	uploadConfig, err := GetUploadConfig(ctx, scenicId, deviceNo)
	if err != nil {
		logger.Error("获取上传配置失败", zap.String("deviceNo", deviceNo), zap.Error(err))
		return err
	}

	logger.Info("获取到VIID任务ID",
		zap.Int64("taskId", uploadConfig.TaskID),
		zap.Bool("hasImageProcessing", uploadConfig.ImageProcessing != nil))

	// 2. 将服务器配置转换为图像处理选项
	imgOpts := configToImageOptions(uploadConfig.ImageProcessing)

	// 3. 处理图像
	processedImages, err := util.ProcessImages(faceImg, srcImg, faceRect, imgOpts)
	if err != nil {
		SubmitFailure(ctx, uploadConfig.TaskID, "IMAGE_PROCESSING_FAILED", err.Error())
		logger.Error("图像处理失败", zap.Int64("taskId", uploadConfig.TaskID), zap.Error(err))
		return fmt.Errorf("image processing failed: %w", err)
	}

	logger.Debug("图像处理完成",
		zap.Int64("taskId", uploadConfig.TaskID),
		zap.Int("faceSize", len(processedImages.FaceData)),
		zap.Int("thumbSize", len(processedImages.ThumbData)),
		zap.Int("sourceSize", len(processedImages.SourceData)))

	// 4. 并行上传到OSS
	g, subCtx := errgroup.WithContext(ctx)

	// 上传人脸图
	g.Go(func() error {
		if len(processedImages.FaceData) > 0 {
			if err := UploadFileToOSS(subCtx, uploadConfig.FaceUploadURL, processedImages.FaceData, "image/jpeg"); err != nil {
				return fmt.Errorf("upload face image failed: %w", err)
			}
		}
		return nil
	})

	// 上传缩略图
	g.Go(func() error {
		if len(processedImages.ThumbData) > 0 {
			if err := UploadFileToOSS(subCtx, uploadConfig.ThumbnailUploadURL, processedImages.ThumbData, "image/jpeg"); err != nil {
				return fmt.Errorf("upload thumbnail image failed: %w", err)
			}
		}
		return nil
	})

	// 上传原图
	g.Go(func() error {
		if len(processedImages.SourceData) > 0 {
			if err := UploadFileToOSS(subCtx, uploadConfig.SourceUploadURL, processedImages.SourceData, "image/jpeg"); err != nil {
				return fmt.Errorf("upload source image failed: %w", err)
			}
		}
		return nil
	})

	if err := g.Wait(); err != nil {
		SubmitFailure(ctx, uploadConfig.TaskID, "UPLOAD_FAILED", err.Error())
		logger.Error("文件上传失败", zap.Int64("taskId", uploadConfig.TaskID), zap.Error(err))
		return err
	}

	// 5. 提交结果
	if err := SubmitResult(ctx, uploadConfig.TaskID, facePos); err != nil {
		logger.Error("提交结果失败", zap.Int64("taskId", uploadConfig.TaskID), zap.Error(err))
		return err
	}

	logger.Info("VIID任务完成", zap.Int64("taskId", uploadConfig.TaskID))
	return nil
}

// configToImageOptions 将服务器配置转换为图像处理选项
func configToImageOptions(config *ImageProcessingConfig) *util.ImageProcessingOptions {
	// 应用默认值
	effectiveConfig := config.GetEffectiveConfig()

	opts := &util.ImageProcessingOptions{
		// 原图压缩配置
		SourceCompressionEnabled: effectiveConfig.SourceCompression.Enabled,
		SourceQuality:            effectiveConfig.SourceCompression.Quality,

		// 缩略图配置
		ThumbnailMode:        effectiveConfig.Thumbnail.Mode,
		ThumbnailShrinkRatio: effectiveConfig.Thumbnail.ShrinkRatio,
		ThumbnailQuality:     effectiveConfig.Thumbnail.Quality,
	}

	return opts
}

// UploadFaceData 已有的上传流程（向后兼容）
// 已废弃：请使用 UploadFaceDataWithProcessing
func UploadFaceData(ctx context.Context, scenicId int64, deviceNo string, faceImg, thumbImg, srcImg []byte, facePos FacePositionInfo) error {
	// 1. 获取上传配置
	uploadConfig, err := GetUploadConfig(ctx, scenicId, deviceNo)
	if err != nil {
		logger.Error("获取上传配置失败", zap.String("deviceNo", deviceNo), zap.Error(err))
		return err
	}

	logger.Info("获取到VIID任务ID", zap.Int64("taskId", uploadConfig.TaskID))

	// 2. 并行上传到OSS
	g, subCtx := errgroup.WithContext(ctx)

	// 上传人脸图
	g.Go(func() error {
		if len(faceImg) > 0 {
			if err := UploadFileToOSS(subCtx, uploadConfig.FaceUploadURL, faceImg, "image/jpeg"); err != nil {
				return fmt.Errorf("upload face image failed: %w", err)
			}
		}
		return nil
	})

	// 上传缩略图
	g.Go(func() error {
		if len(thumbImg) > 0 {
			if err := UploadFileToOSS(subCtx, uploadConfig.ThumbnailUploadURL, thumbImg, "image/jpeg"); err != nil {
				return fmt.Errorf("upload thumbnail image failed: %w", err)
			}
		}
		return nil
	})

	// 上传原图
	g.Go(func() error {
		if len(srcImg) > 0 {
			if err := UploadFileToOSS(subCtx, uploadConfig.SourceUploadURL, srcImg, "image/jpeg"); err != nil {
				return fmt.Errorf("upload source image failed: %w", err)
			}
		}
		return nil
	})

	if err := g.Wait(); err != nil {
		SubmitFailure(ctx, uploadConfig.TaskID, "UPLOAD_FAILED", err.Error())
		logger.Error("文件上传失败", zap.Int64("taskId", uploadConfig.TaskID), zap.Error(err))
		return err
	}

	// 3. 提交结果
	if err := SubmitResult(ctx, uploadConfig.TaskID, facePos); err != nil {
		logger.Error("提交结果失败", zap.Int64("taskId", uploadConfig.TaskID), zap.Error(err))
		return err
	}

	logger.Info("VIID任务完成", zap.Int64("taskId", uploadConfig.TaskID))
	return nil
}