Initial commit

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

app/api/imctrl/ad.go

@@ -0,0 +1,71 @@
+package imctrl
+
+import (
+	"strings"
+
+	"91porn-server/app/service/imadser"
+	"91porn-server/common"
+	"91porn-server/common/enum/imad"
+	"91porn-server/common/stderr"
+
+	"github.com/gin-gonic/gin"
+)
+
+type IMAdReq struct {
+	Position  string   `json:"position"`
+	Positions []string `json:"positions"`
+}
+
+type IMAdResp struct {
+	Groups []imadser.AdPositionGroup `json:"groups"`
+}
+
+func GetIMAd(ctx *gin.Context) {
+	if _, err := common.GetUID(ctx); err != nil {
+		common.ServeJSON(ctx, stderr.ErrNoToken, err)
+		return
+	}
+
+	var req IMAdReq
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		common.ServeJSON(ctx, stderr.ErrParamError, err)
+		return
+	}
+	positions := normalizeIMAdPositions(req)
+	if len(positions) == 0 {
+		common.ServeJSON(ctx, stderr.ErrParamError, nil)
+		return
+	}
+	for _, position := range positions {
+		if !imad.IsPositionCode(position) {
+			common.ServeJSON(ctx, stderr.ErrParamError, nil)
+			return
+		}
+	}
+
+	common.ServeJSON(ctx, stderr.Success, &IMAdResp{
+		Groups: imadser.GetAdsByPositionCodes(positions),
+	})
+}
+
+func normalizeIMAdPositions(req IMAdReq) []string {
+	positions := make([]string, 0, len(req.Positions)+1)
+	if position := strings.TrimSpace(req.Position); position != "" {
+		positions = append(positions, position)
+	}
+	positions = append(positions, req.Positions...)
+	seen := make(map[string]struct{}, len(positions))
+	normalized := make([]string, 0, len(positions))
+	for _, position := range positions {
+		position = strings.TrimSpace(position)
+		if position == "" {
+			continue
+		}
+		if _, ok := seen[position]; ok {
+			continue
+		}
+		seen[position] = struct{}{}
+		normalized = append(normalized, position)
+	}
+	return normalized
+}