feat: add handler to reset application state

cmd/tank/web.go

@@ -46,6 +46,7 @@ const (
 	WebAPIDocsPrefix = "/api/docs/"
 	WebAPIv1Prefix   = "/api/v1/"
 	HealthzEndpoint  = "/healthz"
+	ResetEndpoint    = "/api/v1/debug/application-state"
 )
 
 func apache2CombinedLogger(param gin.LogFormatterParams) string {
@@ -140,6 +141,24 @@ func healthzHandler(c *gin.Context, st *store.Store, im *importer.Importer) {
 	c.JSON(code, h)
 }
 
+// resetApplicationStateHandler purges all the data
+//
+//	@Summary		Purges all the data
+//	@Description	Purges all the data and returns the deleted count for each of the models
+//	@Produce		json
+//	@Success		200								{object}	store.DeleteCounter
+//	@Failure		500								{object}	apiV1.ErrorResponse
+//	@Router			/api/v1/debug/application-state	[delete]
+func resetApplicationStateHandler(c *gin.Context, st *store.Store) {
+	deleteCounter, err := st.ResetState()
+
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, apiV1.ErrorResponse{Error: err.Error()})
+	}
+
+	c.JSON(http.StatusOK, deleteCounter)
+}
+
 func runWeb(ln net.Listener, st *store.Store, im *importer.Importer, conf WebConfig) error {
 	gin.SetMode(gin.ReleaseMode)
 
@@ -174,6 +193,10 @@ func runWeb(ln net.Listener, st *store.Store, im *importer.Importer, conf WebCon
 	r.GET(HealthzEndpoint, func(c *gin.Context) { healthzHandler(c, st, im) })
 	r.GET(WebAPIDocsPrefix+"*any", ginSwagger.WrapHandler(swaggerFiles.Handler))
 
+	if os.Getenv("OPERATION_MODE") == "tests" {
+		r.DELETE(ResetEndpoint, func(c *gin.Context) { resetApplicationStateHandler(c, st) })
+	}
+
 	srv := &http.Server{
 		Handler:      r,
 		WriteTimeout: 12 * time.Hour,