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backend/internal/modules/telegram/handler.go

@@ -0,0 +1,74 @@
+package telegram
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+type Handler struct {
+	service *Service
+}
+
+func NewHandler(service *Service) *Handler {
+	return &Handler{service: service}
+}
+
+// settingsResponse never includes the raw bot token (spec section 32: secrets
+// must never be exposed to the frontend) -- only whether one is configured.
+type settingsResponse struct {
+	Enabled            bool   `json:"enabled"`
+	BotTokenConfigured bool   `json:"bot_token_configured"`
+	ChatID             string `json:"chat_id"`
+	NotifyNewOrder     bool   `json:"notify_new_order"`
+	NotifyStatusChange bool   `json:"notify_status_change"`
+}
+
+func toResponse(s *Settings) settingsResponse {
+	return settingsResponse{
+		Enabled:            s.Enabled,
+		BotTokenConfigured: s.BotToken != "",
+		ChatID:             s.ChatID,
+		NotifyNewOrder:     s.NotifyNewOrder,
+		NotifyStatusChange: s.NotifyStatusChange,
+	}
+}
+
+func (h *Handler) Get(c *gin.Context) {
+	settings, err := h.service.Get(c.Request.Context())
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to load telegram settings"})
+		return
+	}
+	c.JSON(http.StatusOK, toResponse(settings))
+}
+
+type updateRequest struct {
+	Enabled            bool   `json:"enabled"`
+	BotToken           string `json:"bot_token"`
+	ChatID             string `json:"chat_id" binding:"required_if=Enabled true"`
+	NotifyNewOrder     bool   `json:"notify_new_order"`
+	NotifyStatusChange bool   `json:"notify_status_change"`
+}
+
+func (h *Handler) Update(c *gin.Context) {
+	var req updateRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "validation error", "details": err.Error()})
+		return
+	}
+	settings, err := h.service.Update(c.Request.Context(), req.Enabled, req.BotToken, req.ChatID, req.NotifyNewOrder, req.NotifyStatusChange)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to update telegram settings"})
+		return
+	}
+	c.JSON(http.StatusOK, toResponse(settings))
+}
+
+func (h *Handler) Test(c *gin.Context) {
+	if err := h.service.SendTestMessage(c.Request.Context()); err != nil {
+		c.JSON(http.StatusBadGateway, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "test notification sent"})
+}