Started creating introduction screen

backend/go-app/codegen.go

@@ -456,6 +456,40 @@ func generateYaml(swagger *openapi3.Swagger, newmd5 string) (*openapi3.Swagger,
 		}
 	}
 
+	// Jesus what a clusterfuck.
+	// Handles parsing of categories from OpenApi3 custom field
+	if val, ok := swagger.Info.ExtensionProps.Extensions["x-categories"]; ok {
+		log.Printf("Categories: %#v", val)
+		j, err := json.Marshal(&val)
+		if err == nil {
+			if j[0] == 0x22 && j[len(j)-1] == 0x22 {
+				j = j[1 : len(j)-1]
+			}
+
+			parsedCategories := fmt.Sprintf(`{"categories": %s}`, string(j))
+			type parsed struct {
+				Categories []string `json:"categories"`
+			}
+
+			var parse parsed
+			err := json.Unmarshal([]byte(parsedCategories), &parse)
+			if err != nil {
+				log.Printf("Failed unmarshaling categories", err)
+			} else {
+				api.Categories = parse.Categories
+			}
+		}
+	}
+
+	if len(swagger.Tags) > 0 {
+		newTags := []string{}
+		for _, tag := range swagger.Tags {
+			newTags = append(newTags, tag.Name)
+		}
+
+		api.Tags = newTags
+	}
+
 	securitySchemes := swagger.Components.SecuritySchemes
 	if securitySchemes != nil {
 		//log.Printf("%#v", securitySchemes)