fadd

app/main/api/internal/handler/agent/getinviteposterhandler.go

@@ -0,0 +1,30 @@
+package agent
+
+import (
+	"net/http"
+
+	"bdqr-server/app/main/api/internal/logic/agent"
+	"bdqr-server/app/main/api/internal/svc"
+	"bdqr-server/app/main/api/internal/types"
+	"bdqr-server/common/result"
+	"bdqr-server/pkg/lzkit/validator"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+func GetInvitePosterHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.GetInvitePosterReq
+		if err := httpx.Parse(r, &req); err != nil {
+			result.ParamErrorResult(r, w, err)
+			return
+		}
+		if err := validator.Validate(req); err != nil {
+			result.ParamValidateErrorResult(r, w, err)
+			return
+		}
+		l := agent.NewGetInvitePosterLogic(r.Context(), svcCtx)
+		resp, err := l.GetInvitePoster(&req)
+		result.HttpResult(r, w, resp, err)
+	}
+}

app/main/api/internal/handler/routes.go

@@ -661,6 +661,11 @@ func RegisterHandlers(server *rest.Server, serverCtx *svc.ServiceContext) {
 					Path:    "/invite_link",
 					Handler: agent.GetInviteLinkHandler(serverCtx),
 				},
+				{
+					Method:  http.MethodGet,
+					Path:    "/invite/poster",
+					Handler: agent.GetInvitePosterHandler(serverCtx),
+				},
 				{
 					Method:  http.MethodGet,
 					Path:    "/level/privilege",

app/main/api/internal/logic/agent/getinviteposterlogic.go

@@ -0,0 +1,66 @@
+package agent
+
+import (
+	"context"
+	"encoding/base64"
+	"strings"
+
+	"bdqr-server/app/main/model"
+	"bdqr-server/common/ctxdata"
+	"bdqr-server/common/xerr"
+
+	"github.com/pkg/errors"
+
+	"bdqr-server/app/main/api/internal/svc"
+	"bdqr-server/app/main/api/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type GetInvitePosterLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewGetInvitePosterLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetInvitePosterLogic {
+	return &GetInvitePosterLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetInvitePosterLogic) GetInvitePoster(req *types.GetInvitePosterReq) (resp *types.GetInvitePosterResp, err error) {
+	// 1. 需登录且为代理
+	userID, err := ctxdata.GetUidFromCtx(l.ctx)
+	if err != nil {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "获取用户信息失败, %v", err)
+	}
+
+	_, err = l.svcCtx.AgentModel.FindOneByUserId(l.ctx, userID)
+	if err != nil {
+		if errors.Is(err, model.ErrNotFound) {
+			return nil, errors.Wrapf(xerr.NewErrMsg("您不是代理"), "")
+		}
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询代理信息失败, %v", err)
+	}
+
+	// 2. 邀请链接不能为空
+	inviteLink := strings.TrimSpace(req.InviteLink)
+	if inviteLink == "" {
+		return nil, errors.Wrapf(xerr.NewErrMsg("邀请链接不能为空"), "")
+	}
+
+	// 3. 调用 ImageService 生成邀请海报（背景图 + 二维码）
+	imgData, _, err := l.svcCtx.ImageService.ProcessImageWithQRCode("invitation", inviteLink)
+	if err != nil {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "生成海报失败: %v", err)
+	}
+
+	// 4. 返回 base64
+	posterBase64 := base64.StdEncoding.EncodeToString(imgData)
+	return &types.GetInvitePosterResp{
+		PosterBase64: posterBase64,
+	}, nil
+}

app/main/api/internal/service/imageService.go

@@ -26,13 +26,13 @@ func NewImageService() *ImageService {
 
 // ProcessImageWithQRCode 处理图片，在中间添加二维码
 func (s *ImageService) ProcessImageWithQRCode(qrcodeType, qrcodeUrl string) ([]byte, string, error) {
-	// 1. 根据qrcodeType确定使用哪张背景图
+	// 1. 根据qrcodeType确定使用哪张背景图（与 uniapp_ycc/src/static/invitation 下海报一致，需复制到本目录 static/images）
 	var backgroundImageName string
 	switch qrcodeType {
 	case "promote":
 		backgroundImageName = "tg_qrcode_1.png"
 	case "invitation":
-		backgroundImageName = "yq_qrcode_1.png"
+		backgroundImageName = "invitation_01.png" // 与 uniapp static/invitation/invitation_01.png 同一张图，部署时拷贝到 static/images
 	default:
 		backgroundImageName = "tg_qrcode_1.png" // 默认使用第一张图片
 	}
@@ -79,10 +79,10 @@ func (s *ImageService) ProcessImageWithQRCode(qrcodeType, qrcodeUrl string) ([]b
 
 	case "invitation":
 		// invitation类型：精确设置二维码尺寸
-		qrSize = 360 // 固定尺寸320px
+		qrSize = 138 // 固定尺寸320px
 		// 中间偏上位置
 		qrX = (imgWidth - qrSize) / 2 // 水平居中
-		qrY = 555                     // 垂直位置200px
+		qrY = 140                     // 垂直位置200px
 
 	default:
 		// 默认（promote样式）
@@ -162,7 +162,7 @@ func (s *ImageService) CheckImageExists(qrcodeType string) bool {
 	case "promote":
 		backgroundImageName = "tg_qrcode_1.png"
 	case "invitation":
-		backgroundImageName = "yq_qrcode_1.png"
+		backgroundImageName = "invitation_01.png"
 	default:
 		backgroundImageName = "tg_qrcode_1.png"
 	}

app/main/api/internal/types/agent.go

@@ -116,6 +116,17 @@ type GetInviteLinkResp struct {
 	InviteLink string `json:"invite_link"` // 邀请链接
 }
 
+// GetInvitePosterReq 生成邀请海报请求（邀请链接 + 可选 format=base64）
+type GetInvitePosterReq struct {
+	InviteLink string `form:"invite_link"`           // 邀请链接（短链）
+	Format     string `form:"format,optional"`       // 返回格式：base64（默认）
+}
+
+// GetInvitePosterResp 生成邀请海报响应
+type GetInvitePosterResp struct {
+	PosterBase64 string `json:"poster_base64"` // 海报图片 base64（不含 data:image/png;base64, 前缀）
+}
+
 type GetLevelPrivilegeResp struct {
 	Levels                 []LevelPrivilegeItem `json:"levels"`
 	UpgradeToGoldFee       float64              `json:"upgrade_to_gold_fee"`