V2 alpha - initial version (#172)

Initial alpha codebase for version 2 of WireGuard Portal.
This version is considered unstable and incomplete (for example, no public REST API)! 
Use with care!


Fixes/Implements the following issues:
 - OAuth support #154, #1 
 - New Web UI with internationalisation support #98, #107, #89, #62
 - Postgres Support #49 
 - Improved Email handling #47, #119 
 - DNS Search Domain support #46 
 - Bugfixes #94, #48 

---------

Co-authored-by: Fabian Wechselberger <wechselbergerf@hotmail.com>

cmd/api_build_tool/main.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/sirupsen/logrus"
+	"github.com/swaggo/swag"
+	"github.com/swaggo/swag/gen"
+)
+
+// this replaces the call to: swag init --propertyStrategy pascalcase --parseDependency --parseInternal --generalInfo base.go
+func main() {
+	wd, err := os.Getwd() // should be the project root
+	if err != nil {
+		panic(err)
+	}
+
+	apiBasePath := filepath.Join(wd, "/internal/app/api")
+	apis := []string{"v0"}
+
+	hasError := false
+	for _, apiVersion := range apis {
+		apiPath := filepath.Join(apiBasePath, apiVersion, "handlers")
+
+		apiVersion = strings.TrimLeft(apiVersion, "api-")
+		log.Println("")
+		log.Println("Generate swagger docs for API", apiVersion)
+		log.Println("Api path:", apiPath)
+
+		err := generateApi(apiBasePath, apiPath, apiVersion)
+		if err != nil {
+			hasError = true
+			logrus.Errorf("failed to generate API docs for %s: %v", apiVersion, err)
+		}
+
+		log.Println("Generated swagger docs for API", apiVersion)
+	}
+
+	if hasError {
+		os.Exit(1)
+	}
+}
+
+func generateApi(basePath, apiPath, version string) error {
+	err := gen.New().Build(&gen.Config{
+		SearchDir:           apiPath,
+		Excludes:            "",
+		MainAPIFile:         "base.go",
+		PropNamingStrategy:  swag.PascalCase,
+		OutputDir:           filepath.Join(basePath, "core/assets/doc"),
+		OutputTypes:         []string{"json", "yaml"},
+		ParseVendor:         false,
+		ParseDependency:     true,
+		MarkdownFilesDir:    "",
+		ParseInternal:       true,
+		GeneratedTime:       false,
+		CodeExampleFilesDir: "",
+		ParseDepth:          3,
+		InstanceName:        version,
+	})
+	if err != nil {
+		return fmt.Errorf("swag failed: %w", err)
+	}
+
+	return nil
+}