package provider

import (
	"context"

	pb "github.com/topfans/backend/pkg/proto/asset"
	pbCommon "github.com/topfans/backend/pkg/proto/common"
	"github.com/topfans/backend/pkg/models"
	"github.com/topfans/backend/pkg/logger"
	"github.com/topfans/backend/services/assetService/service"
	"go.uber.org/zap"
)

// UploadMaterial 上传素材
func (p *AssetProvider) UploadMaterial(ctx context.Context, req *pb.UploadMaterialRequest) (*pb.UploadMaterialResponse, error) {
	userID, starID, err := extractUserInfoFromDubboAttachments(ctx)
	if err != nil {
		return &pb.UploadMaterialResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_UNAUTHORIZED, Message: "unauthorized"},
		}, err
	}

	material := &models.Material{
		OssKey:       req.OssKey,
		OriginalName: req.OriginalName,
		FileSize:     req.FileSize,
		MimeType:     req.MimeType,
		Hash:         req.Hash,
		CreatedBy:    userID,
		StarID:       starID,
	}
	if req.Width > 0 {
		w := int(req.Width)
		material.Width = &w
	}
	if req.Height > 0 {
		h := int(req.Height)
		material.Height = &h
	}

	result, err := p.materialService.UploadMaterial(material)
	if err != nil {
		logger.Logger.Error("UploadMaterial failed", zap.Error(err))
		return &pb.UploadMaterialResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_INTERNAL_ERROR, Message: err.Error()},
		}, err
	}

	return &pb.UploadMaterialResponse{
		Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_OK, Message: "ok"},
		Material: &pb.Material{
			MaterialId:   result.ID,
			OssKey:       result.OssKey,
			OriginalName: result.OriginalName,
			FileSize:     result.FileSize,
			MimeType:     result.MimeType,
			Hash:         result.Hash,
			CreatedBy:    result.CreatedBy,
			StarId:       result.StarID,
			CreatedAt:    result.CreatedAt,
		},
	}, nil
}

// BindAssetMaterials 绑定资产素材
func (p *AssetProvider) BindAssetMaterials(ctx context.Context, req *pb.BindAssetMaterialsRequest) (*pb.BindAssetMaterialsResponse, error) {
	if _, _, err := extractUserInfoFromDubboAttachments(ctx); err != nil {
		return &pb.BindAssetMaterialsResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_UNAUTHORIZED, Message: "unauthorized"},
		}, err
	}

	items := make([]service.BindMaterialItem, 0, len(req.Materials))
	for _, m := range req.Materials {
		items = append(items, service.BindMaterialItem{
			MaterialID:   m.MaterialId,
			MaterialType: m.MaterialType,
			LayerOrder:   m.LayerOrder,
			PosX:         doublePtr(m.PosX),
			PosY:         doublePtr(m.PosY),
			Opacity:      doublePtr(m.Opacity),
			Rotation:     doublePtr(m.Rotation),
			ScaleX:       doublePtr(m.ScaleX),
			ScaleY:       doublePtr(m.ScaleY),
		})
	}

	if _, err := p.materialService.BindMaterials(req.AssetId, items); err != nil {
		logger.Logger.Error("BindAssetMaterials failed", zap.Error(err))
		return &pb.BindAssetMaterialsResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_INTERNAL_ERROR, Message: err.Error()},
		}, err
	}

	return &pb.BindAssetMaterialsResponse{
		Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_OK, Message: "ok"},
	}, nil
}

// GetAssetMaterials 获取资产素材列表
func (p *AssetProvider) GetAssetMaterials(ctx context.Context, req *pb.GetAssetMaterialsRequest) (*pb.GetAssetMaterialsResponse, error) {
	if _, _, err := extractUserInfoFromDubboAttachments(ctx); err != nil {
		return &pb.GetAssetMaterialsResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_UNAUTHORIZED, Message: "unauthorized"},
		}, err
	}

	relations, err := p.materialService.GetAssetMaterials(req.AssetId)
	if err != nil {
		return &pb.GetAssetMaterialsResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_INTERNAL_ERROR, Message: err.Error()},
		}, err
	}

	materials := make([]*pb.AssetMaterialRelation, 0, len(relations))
	for _, rel := range relations {
		pbRel := &pb.AssetMaterialRelation{
			RelationId:   rel.ID,
			AssetId:      rel.AssetID,
			MaterialId:   rel.MaterialID,
			MaterialType: rel.MaterialType,
			LayerOrder:   int32(rel.LayerOrder),
		}
		if rel.PosX != nil {
			pbRel.PosX = *rel.PosX
		}
		if rel.PosY != nil {
			pbRel.PosY = *rel.PosY
		}
		if rel.Opacity != nil {
			pbRel.Opacity = *rel.Opacity
		}
		if rel.Rotation != nil {
			pbRel.Rotation = *rel.Rotation
		}
		if rel.ScaleX != nil {
			pbRel.ScaleX = *rel.ScaleX
		}
		if rel.ScaleY != nil {
			pbRel.ScaleY = *rel.ScaleY
		}
		materials = append(materials, pbRel)
	}

	return &pb.GetAssetMaterialsResponse{
		Base:      &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_OK, Message: "ok"},
		Materials: materials,
	}, nil
}

// UpdateMaterialLayerOrder 更新图层顺序
func (p *AssetProvider) UpdateMaterialLayerOrder(ctx context.Context, req *pb.UpdateMaterialLayerOrderRequest) (*pb.UpdateMaterialLayerOrderResponse, error) {
	if _, _, err := extractUserInfoFromDubboAttachments(ctx); err != nil {
		return &pb.UpdateMaterialLayerOrderResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_UNAUTHORIZED, Message: "unauthorized"},
		}, err
	}

	orders := make(map[int64]int, len(req.Orders))
	for _, o := range req.Orders {
		orders[o.RelationId] = int(o.LayerOrder)
	}

	if err := p.materialService.UpdateLayerOrder(req.AssetId, orders); err != nil {
		return &pb.UpdateMaterialLayerOrderResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_INTERNAL_ERROR, Message: err.Error()},
		}, err
	}

	return &pb.UpdateMaterialLayerOrderResponse{
		Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_OK, Message: "ok"},
	}, nil
}

// UnbindAssetMaterial 解绑素材
func (p *AssetProvider) UnbindAssetMaterial(ctx context.Context, req *pb.UnbindAssetMaterialRequest) (*pb.UnbindAssetMaterialResponse, error) {
	if _, _, err := extractUserInfoFromDubboAttachments(ctx); err != nil {
		return &pb.UnbindAssetMaterialResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_UNAUTHORIZED, Message: "unauthorized"},
		}, err
	}

	if err := p.materialService.UnbindMaterial(req.RelationId); err != nil {
		return &pb.UnbindAssetMaterialResponse{
			Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_INTERNAL_ERROR, Message: err.Error()},
		}, err
	}

	return &pb.UnbindAssetMaterialResponse{
		Base: &pbCommon.BaseResponse{Code: pbCommon.StatusCode_STATUS_OK, Message: "ok"},
	}, nil
}

func doublePtr(v float64) *float64 {
	if v == 0 {
		return nil
	}
	return &v
}