155 lines
4.3 KiB
Go
155 lines
4.3 KiB
Go
package logic
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"fusenapi/model/gmodel"
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"fusenapi/service/repositories"
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"fusenapi/utils/auth"
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"fusenapi/utils/basic"
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"fusenapi/utils/file"
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"fusenapi/utils/hash"
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"image"
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"image/png"
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"io"
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"net/http"
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"context"
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"fusenapi/server/resource/internal/svc"
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"fusenapi/server/resource/internal/types"
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"github.com/disintegration/imaging"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type LogoResizeLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewLogoResizeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *LogoResizeLogic {
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return &LogoResizeLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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// 处理进入前逻辑w,r
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// func (l *LogoResizeLogic) BeforeLogic(w http.ResponseWriter, r *http.Request) {
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// }
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func (l *LogoResizeLogic) LogoResize(req *types.LogoResizeReq, userinfo *auth.UserInfo) (resp *basic.Response) {
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// 返回值必须调用Set重新返回, resp可以空指针调用 resp.SetStatus(basic.CodeOK, data)
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// userinfo 传入值时, 一定不为null
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var userId int64
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var guestId int64
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// 检查用户是否是游客
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if userinfo.IsGuest() {
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// 如果是，使用游客ID和游客键名格式
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guestId = userinfo.GuestId
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} else {
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// 否则，使用用户ID和用户键名格式
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userId = userinfo.UserId
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}
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resourceModel := gmodel.NewFsResourceModel(l.svcCtx.MysqlConn)
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resourceInfo, err := resourceModel.FindOneById(l.ctx, req.ResourceId)
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if err != nil {
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logx.Errorf("find resource err: %v", err)
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return resp.SetStatus(basic.CodeFileNoFoundErr)
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}
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response, err := http.Get(*resourceInfo.ResourceUrl)
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if err != nil {
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logx.Errorf("http get err: %v", err)
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return resp.SetStatus(basic.CodeFileNoFoundErr)
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}
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defer response.Body.Close()
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imgByte, err := io.ReadAll(response.Body)
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if err != nil {
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logx.Errorf("io readall err: %v", err)
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return resp.SetStatus(basic.CodeFileNoFoundErr)
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}
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src, _, err := image.Decode(bytes.NewReader(imgByte))
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if err != nil {
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logx.Errorf("image decode err: %v", err)
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return resp.SetStatus(basic.CodeFileNoFoundErr)
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}
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// Resize the cropped image to width = 200px preserving the aspect ratio.
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src = imaging.Resize(src, int(req.Width), int(req.Height), imaging.Lanczos)
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if err != nil {
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logx.Errorf("imaging esize err: %v", err)
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return resp.SetStatus(basic.CodeFileNoFoundErr)
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}
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emptyBuff := bytes.NewBuffer(nil) //开辟一个新的空buff
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png.Encode(emptyBuff, src) //img写入到buff
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var hashKeyDataMap = make(map[string]interface{})
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hashKeyDataB, _ := json.Marshal(req)
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json.Unmarshal(hashKeyDataB, &hashKeyDataMap)
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var resourceId string = hash.JsonHashKey(hashKeyDataMap)
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//fmt.Println(resourceId)
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// 上传文件
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var upload = file.Upload{
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Ctx: l.ctx,
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MysqlConn: l.svcCtx.MysqlConn,
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AwsSession: l.svcCtx.AwsSession,
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}
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uploadRes, err := upload.UploadFileByByte(&file.UploadBaseReq{
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Refresh: 1,
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FileHash: resourceId,
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FileByte: emptyBuff.Bytes(),
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UploadBucket: 1,
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ApiType: 2,
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UserId: userId,
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GuestId: guestId,
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Source: "logo-resize",
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})
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if err != nil {
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logx.Errorf("upload UploadFileByByte err: %v", err)
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return resp.SetStatus(basic.CodeFileNoFoundErr)
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}
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metadataChild := make(map[string]interface{}, 1)
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metadataChildData := make(map[string]interface{}, 1)
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metadataChildKey := fmt.Sprintf("%d*%d", req.Width, req.Height)
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metadataChildData[metadataChildKey] = repositories.Cropping{
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ResourceId: uploadRes.ResourceId,
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ResourceUrl: uploadRes.ResourceUrl,
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Width: req.Width,
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Height: req.Height,
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}
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metadataChild["cropping"] = metadataChildData
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// 原图metadata 更新
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_, err = l.svcCtx.Repositories.NewResource.UpdateMetadata(l.ctx, &repositories.UpdateMetadataReq{
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ResourceId: req.ResourceId,
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MetadataChild: metadataChild,
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})
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if err != nil {
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return resp.SetStatus(basic.CodeServiceErr, "原图metadata更新失败")
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}
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// 返回成功的响应
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return resp.SetStatus(basic.CodeOK, map[string]interface{}{
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"resource_id": uploadRes.ResourceId,
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"resource_url": uploadRes.ResourceUrl,
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})
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}
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// 处理逻辑后 w,r 如:重定向, resp 必须重新处理
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// func (l *LogoResizeLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
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// // httpx.OkJsonCtx(r.Context(), w, resp)
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// }
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