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internal/handlers/swagger/swagger.go

@@ -0,0 +1,100 @@
+package swagger
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	swaggerFiles "github.com/swaggo/files"
+	ginSwagger "github.com/swaggo/gin-swagger"
+
+	"api-service/internal/config"
+)
+
+// Handler handles Swagger documentation
+type Handler struct {
+	config *config.Config
+}
+
+// NewHandler creates a new Swagger handler
+func NewHandler(cfg *config.Config) *Handler {
+	return &Handler{
+		config: cfg,
+	}
+}
+
+// RegisterRoutes registers Swagger routes
+func (h *Handler) RegisterRoutes(router *gin.Engine) {
+	// Serve Swagger UI
+	router.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerFiles.Handler))
+
+	// Serve OpenAPI spec
+	router.GET("/openapi.json", h.serveOpenAPISpec)
+	router.GET("/openapi.yaml", h.serveOpenAPISpecYAML)
+}
+
+// serveOpenAPISpec serves the OpenAPI JSON specification
+func (h *Handler) serveOpenAPISpec(c *gin.Context) {
+	c.JSON(http.StatusOK, gin.H{
+		"openapi": "3.0.0",
+		"info": map[string]interface{}{
+			"title":          h.config.Swagger.Title,
+			"description":    h.config.Swagger.Description,
+			"version":        h.config.Swagger.Version,
+			"termsOfService": h.config.Swagger.TermsOfService,
+			"contact": map[string]interface{}{
+				"name":  h.config.Swagger.ContactName,
+				"url":   h.config.Swagger.ContactURL,
+				"email": h.config.Swagger.ContactEmail,
+			},
+			"license": map[string]interface{}{
+				"name": h.config.Swagger.LicenseName,
+				"url":  h.config.Swagger.LicenseURL,
+			},
+		},
+		"servers": []map[string]interface{}{
+			{
+				"url":         strings.Join([]string{strings.ToLower(h.config.Swagger.Schemes[0]), "://", h.config.Swagger.Host, h.config.Swagger.BasePath}, ""),
+				"description": "API Server",
+			},
+		},
+		"paths": map[string]interface{}{},
+		"components": map[string]interface{}{
+			"schemas":         map[string]interface{}{},
+			"securitySchemes": map[string]interface{}{},
+		},
+	})
+}
+
+// serveOpenAPISpecYAML serves the OpenAPI YAML specification
+func (h *Handler) serveOpenAPISpecYAML(c *gin.Context) {
+	c.YAML(http.StatusOK, map[string]interface{}{
+		"openapi": "3.0.0",
+		"info": map[string]interface{}{
+			"title":          h.config.Swagger.Title,
+			"description":    h.config.Swagger.Description,
+			"version":        h.config.Swagger.Version,
+			"termsOfService": h.config.Swagger.TermsOfService,
+			"contact": map[string]interface{}{
+				"name":  h.config.Swagger.ContactName,
+				"url":   h.config.Swagger.ContactURL,
+				"email": h.config.Swagger.ContactEmail,
+			},
+			"license": map[string]interface{}{
+				"name": h.config.Swagger.LicenseName,
+				"url":  h.config.Swagger.LicenseURL,
+			},
+		},
+		"servers": []map[string]interface{}{
+			{
+				"url":         strings.Join([]string{strings.ToLower(h.config.Swagger.Schemes[0]), "://", h.config.Swagger.Host, h.config.Swagger.BasePath}, ""),
+				"description": "API Server",
+			},
+		},
+		"paths": map[string]interface{}{},
+		"components": map[string]interface{}{
+			"schemas":         map[string]interface{}{},
+			"securitySchemes": map[string]interface{}{},
+		},
+	})
+}