fusenapi/utils/image/image_size.go

package image

import (
	"fmt"
	"fusenapi/constants"
	"fusenapi/model"
	"strings"
	"time"
)

// 定义尺寸规则
var sizeArray = []uint32{1200, 1000, 750, 500, 128}

// 裁剪尺寸阶梯
var newSizeArray = []uint32{200, 400, 600, 800}

// 获取合适尺寸
func GetCurrentSize(clientSize uint32) uint32 {
	lenNewSize := len(newSizeArray)
	//大于最大尺寸则返回规则最大尺寸
	if clientSize >= newSizeArray[lenNewSize-1] {
		return newSizeArray[lenNewSize-1]
	}
	//小于最小尺寸则返回规则最小尺寸
	if clientSize <= newSizeArray[0] {
		return newSizeArray[0]
	}
	for _, v := range newSizeArray {
		if v >= clientSize {
			return v
		}
	}
	return clientSize
}

// 千人前面图像拼接
type ThousandFaceImageFormatReq struct {
	Size           int
	IsThousandFace int
	Cover          string
	CoverImg       string
	CoverDefault   string
	ProductId      int64
	UserInfo       model.FsUser
}

func ThousandFaceImageFormat(req *ThousandFaceImageFormatReq) {
	if req.Size > 0 {
		coverSlice := strings.Split(req.Cover, ".")
		coverImgSlice := strings.Split(req.CoverImg, ".")
		if req.Size >= 200 && len(coverSlice) == 2 && len(coverImgSlice) == 2 {
			req.Cover = fmt.Sprintf("%s_%d.%s", coverSlice[0], req.Size, coverSlice[1])
			req.CoverImg = fmt.Sprintf("%s_%d.%s", coverImgSlice[0], req.Size, coverImgSlice[1])
		}
		//千人千面处理
		if req.IsThousandFace == 1 {
			req.Cover = ""
			req.CoverDefault = req.CoverImg
			if req.Size >= 200 && len(coverSlice) == 2 && len(coverImgSlice) == 2 {
				req.CoverImg = fmt.Sprintf("%s/test/%d/%d_%d.png?%d", constants.DOMAIN_RENDER_IMG_NAME, req.UserInfo.Id, req.UserInfo.Id, req.ProductId, time.Now().Unix())
				req.CoverDefault = fmt.Sprintf("%s_%d.%s", coverImgSlice[0], req.Size, coverImgSlice[1])
			}
		}
	}
}