142 lines
3.9 KiB
Go
142 lines
3.9 KiB
Go
package handler
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import (
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"errors"
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"net/http"
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"strings"
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"backend/internal/model"
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"backend/internal/service"
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"github.com/gin-gonic/gin"
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)
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type CDKHandler struct {
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cdks *service.CDKService
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}
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func NewCDKHandler(cdks *service.CDKService) *CDKHandler {
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return &CDKHandler{cdks: cdks}
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}
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func (h *CDKHandler) List(c *gin.Context) {
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items, stats, names, err := h.cdks.List(c.Request.Context())
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"detail": "failed to load cdks"})
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return
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}
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// Server-side filtering (状态 未使用/已使用 · 类型 普通/营销 · 搜索兑换码) + pagination.
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statusFilter := strings.TrimSpace(c.Query("status")) // "" | active | used
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typeFilter := strings.TrimSpace(c.Query("type")) // "" | normal | marketing
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q := strings.ToUpper(strings.TrimSpace(c.Query("q")))
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filtered := make([]model.CDKCode, 0, len(items))
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for _, item := range items {
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switch statusFilter {
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case "active":
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if item.Status != "active" {
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continue
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}
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case "used":
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if item.Status == "active" {
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continue
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}
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}
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switch typeFilter {
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case "marketing":
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if item.Type != "marketing" {
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continue
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}
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case "normal":
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if item.Type == "marketing" {
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continue
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}
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}
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if q != "" && !strings.Contains(strings.ToUpper(item.Code), q) {
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continue
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}
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filtered = append(filtered, item)
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}
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total := len(filtered)
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limit, offset := pageParams(c, 20)
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page := pageSlice(filtered, limit, offset)
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c.JSON(http.StatusOK, gin.H{"data": cdkPublic(page, names), "total": total, "limit": limit, "offset": offset, "stats": stats})
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}
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func (h *CDKHandler) Create(c *gin.Context) {
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var body struct {
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Amount int `json:"amount"`
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Count int `json:"count"`
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Note string `json:"note"`
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Type string `json:"type"`
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}
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if err := c.ShouldBindJSON(&body); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"detail": "invalid request body"})
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return
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}
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items, err := h.cdks.Generate(c.Request.Context(), body.Amount, body.Count, body.Note, body.Type)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"detail": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{"ok": true, "created": cdkPublic(items, nil)})
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}
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func (h *CDKHandler) Delete(c *gin.Context) {
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if err := h.cdks.Delete(c.Request.Context(), c.Param("code")); err != nil {
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if errors.Is(err, service.ErrNotFound) {
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c.JSON(http.StatusNotFound, gin.H{"detail": "cdk not found"})
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return
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}
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c.JSON(http.StatusInternalServerError, gin.H{"detail": "failed to delete cdk"})
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return
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}
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c.JSON(http.StatusOK, gin.H{"ok": true})
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}
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// DeleteBulk removes multiple CDK codes in one call (multi-select).
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func (h *CDKHandler) DeleteBulk(c *gin.Context) {
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var body struct {
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Codes []string `json:"codes"`
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}
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if err := c.ShouldBindJSON(&body); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"detail": "invalid request body"})
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return
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}
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if len(body.Codes) == 0 {
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c.JSON(http.StatusBadRequest, gin.H{"detail": "未选择任何兑换码"})
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return
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}
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n, err := h.cdks.DeleteBulk(c.Request.Context(), body.Codes)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"detail": "failed to delete cdks"})
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return
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}
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c.JSON(http.StatusOK, gin.H{"ok": true, "deleted": n})
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}
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func cdkPublic(items []model.CDKCode, nameByID map[string]string) []gin.H {
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out := make([]gin.H, 0, len(items))
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for _, item := range items {
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var redeemedByName any
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if item.RedeemedBy != nil && *item.RedeemedBy != "" {
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if name, ok := nameByID[*item.RedeemedBy]; ok {
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redeemedByName = name
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}
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}
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out = append(out, gin.H{
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"code": item.Code,
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"amount": item.Amount,
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"status": item.Status,
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"type": item.Type,
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"batch_id": item.BatchID,
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"note": item.Note,
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"redeemed_by": item.RedeemedBy,
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"redeemed_by_name": redeemedByName,
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"redeemed_at": unixSecPtr(item.RedeemedAt),
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"created_at": unixSec(item.CreatedAt),
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})
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}
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return out
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}
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