feat(integrations): align slack parity

internal/handler/api/v1/slack_integration_handler.go

@@ -1,10 +1,12 @@
 package v1
 
 import (
+	"errors"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
 
+	"github.com/gochat/gochat/internal/model"
 	"github.com/gochat/gochat/internal/service"
 	"github.com/gochat/gochat/pkg/response"
 )
@@ -30,7 +32,7 @@ func (h *SlackIntegrationHandler) Create(c *gin.Context) {
 	}
 
 	var req service.CreateSlackRequest
-	if err := c.ShouldBindJSON(&req); err != nil {
+	if err := c.ShouldBind(&req); err != nil {
 		response.AbortWithStatusError(c, http.StatusBadRequest, response.ErrBadRequest, err.Error())
 		return
 	}
@@ -40,7 +42,7 @@ func (h *SlackIntegrationHandler) Create(c *gin.Context) {
 		handleServiceError(c, svcErr)
 		return
 	}
-	response.OK(c, hook)
+	c.JSON(http.StatusOK, h.slackAppPayload(c, accountID, []model.IntegrationHook{*hook}))
 }
 
 // Update updates a Slack integration for an account.
@@ -53,17 +55,21 @@ func (h *SlackIntegrationHandler) Update(c *gin.Context) {
 	}
 
 	var req service.UpdateSlackRequest
-	if err := c.ShouldBindJSON(&req); err != nil {
+	if err := c.ShouldBind(&req); err != nil {
 		response.AbortWithStatusError(c, http.StatusBadRequest, response.ErrBadRequest, err.Error())
 		return
 	}
 
 	hook, svcErr := h.svc.Update(c.Request.Context(), accountID, req)
 	if svcErr != nil {
+		if errors.Is(svcErr, service.ErrSlackInvalidChannel) {
+			c.JSON(http.StatusUnprocessableEntity, gin.H{"error": "Invalid slack channel. Please try again"})
+			return
+		}
 		handleServiceError(c, svcErr)
 		return
 	}
-	response.OK(c, hook)
+	c.JSON(http.StatusOK, h.slackAppPayload(c, accountID, []model.IntegrationHook{*hook}))
 }
 
 // Delete removes a Slack integration for an account.
@@ -79,7 +85,7 @@ func (h *SlackIntegrationHandler) Delete(c *gin.Context) {
 		handleServiceError(c, svcErr)
 		return
 	}
-	response.OK(c, gin.H{"message": "Slack integration deleted"})
+	c.Status(http.StatusOK)
 }
 
 // ListAllChannels lists available Slack channels.
@@ -96,16 +102,45 @@ func (h *SlackIntegrationHandler) ListAllChannels(c *gin.Context) {
 		handleServiceError(c, svcErr)
 		return
 	}
-	response.OK(c, channels)
+	c.JSON(http.StatusOK, channels)
 }
 
 // RegisterSlackIntegrationRoutes registers Slack integration routes.
 func RegisterSlackIntegrationRoutes(g *gin.RouterGroup, h *SlackIntegrationHandler) {
+	g.POST("/slack", h.Create)
+	g.PATCH("/slack", h.Update)
+	g.PUT("/slack", h.Update)
+	g.DELETE("/slack", h.Delete)
+
 	slack := g.Group("/slack")
 	{
 		slack.POST("/", h.Create)
 		slack.PATCH("/", h.Update)
+		slack.PUT("/", h.Update)
 		slack.DELETE("/", h.Delete)
 		slack.GET("/list_all_channels", h.ListAllChannels)
 	}
 }
+
+func (h *SlackIntegrationHandler) slackAppPayload(c *gin.Context, accountID uint, fallback []model.IntegrationHook) gin.H {
+	hooks, err := h.svc.ListHooks(c.Request.Context(), accountID)
+	if err != nil || len(hooks) == 0 {
+		hooks = fallback
+	}
+	serializedHooks := make([]gin.H, 0, len(hooks))
+	for _, hook := range hooks {
+		serializedHooks = append(serializedHooks, serializeIntegrationHook(hook))
+	}
+	return gin.H{
+		"id":                   "slack",
+		"name":                 "Slack",
+		"description":          "Connect Slack channels for real-time notifications",
+		"short_description":    "Connect Slack channels for real-time notifications",
+		"enabled":              len(serializedHooks) > 0,
+		"hooks":                serializedHooks,
+		"hook_type":            integrationAppHookType("slack"),
+		"allow_multiple_hooks": integrationAppAllowsMultipleHooks("slack"),
+		"settings_form_schema": integrationAppSettingsFormSchema("slack"),
+		"visible_properties":   integrationAppVisibleProperties("slack"),
+	}
+}