190 lines
6.4 KiB
Go
190 lines
6.4 KiB
Go
package swaggerset
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import (
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"fmt"
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"reflect"
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"strings"
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dynamicstruct "github.com/ompluscator/dynamic-struct"
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openapi "go.unistack.org/micro-proto/v3/openapiv3"
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)
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type Message struct {
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Type string
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Request httpRequest
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Response interface{}
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}
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type httpRequest struct {
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Header interface{}
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Body interface{}
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}
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func handleOperation(operation *openapi.Operation, doc *openapi.Document) (reqParam, reqBody, rsp interface{}) {
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// Обработка параметров (GET)
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if len(operation.Parameters) > 0 {
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paramsStruct := dynamicstruct.NewStruct()
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for _, paramRef := range operation.Parameters {
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var param *openapi.Parameter
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param = paramRef.GetParameter()
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fieldName := capitalize(param.Name)
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jsonName := strings.ToLower(param.Name[:1]) + param.Name[1:]
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goType := getGoType(doc, param.Schema)
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// В зависимости от того, где параметр находится (header, query, path, etc.), добавляем соответствующий тег
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switch param.In {
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case "query":
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paramsStruct = paramsStruct.AddField(fieldName, goType, fmt.Sprintf(`json:"%s" query:"%s"`, jsonName, jsonName))
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case "header":
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paramsStruct = paramsStruct.AddField(fieldName, goType, fmt.Sprintf(`json:"%s" header:"%s"`, jsonName, jsonName))
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default:
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paramsStruct = paramsStruct.AddField(fieldName, goType, fmt.Sprintf(`json:"%s"`, jsonName))
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}
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}
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// Получили структуру запроса для методов, где есть параметры в header, query, path, etc., добавили теги
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reqParam = paramsStruct.Build().New()
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}
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// Обработка тела запроса (POST)
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if operation.GetRequestBody() != nil {
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if operation.GetRequestBody().GetRequestBody() != nil {
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bodyFields := buildDynamicStruct(doc, operation.GetRequestBody().GetRequestBody().GetContent().GetAdditionalProperties()[0].GetValue().GetSchema())
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bodyStruct := reflect.StructOf(bodyFields)
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bodyInstance := reflect.New(bodyStruct).Interface()
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// Получили тело запроса
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reqBody = bodyInstance
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}
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if operation.GetRequestBody().GetReference() != nil {
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schemOrRef := findReference(doc, operation.GetRequestBody().GetReference().GetXRef())
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bodyFields := buildDynamicStruct(doc, schemOrRef)
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bodyStruct := reflect.StructOf(bodyFields)
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bodyInstance := reflect.New(bodyStruct).Interface()
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// Получили тело запроса
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reqBody = bodyInstance
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}
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}
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// Обработка ответов
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for _, rspOrRef := range operation.Responses.ResponseOrReference {
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if rspOrRef.GetValue().GetResponse() != nil {
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for _, prop := range rspOrRef.Value.GetResponse().GetContent().GetAdditionalProperties() {
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responseFields := buildDynamicStruct(doc, prop.GetValue().GetSchema())
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responseStruct := reflect.StructOf(responseFields)
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responseInstance := reflect.New(responseStruct).Interface()
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// Получили структуру ответа
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rsp = responseInstance
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}
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}
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if rspOrRef.GetValue().GetReference() != nil {
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schemaOrRef := findReference(doc, rspOrRef.GetValue().GetReference().GetXRef())
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responseFields := buildDynamicStruct(doc, schemaOrRef)
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responseStruct := reflect.StructOf(responseFields)
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responseInstance := reflect.New(responseStruct).Interface()
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// Получили структуру ответа
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rsp = responseInstance
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}
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}
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return
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}
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// Рекурсивное создание структуры из схемы с учетом $ref
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func buildDynamicStruct(doc *openapi.Document, schemaOrRef *openapi.SchemaOrReference) []reflect.StructField {
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var sfields []reflect.StructField
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var schema *openapi.Schema
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if schemaOrRef.GetSchema() != nil {
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schema = schemaOrRef.GetSchema()
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}
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if schemaOrRef.GetReference() != nil {
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name := strings.Split(schemaOrRef.GetReference().GetXRef(), "#/components/schemas/")[1]
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fieldName := capitalize(name)
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subBuilder := buildDynamicStruct(doc, findReference(doc, schemaOrRef.GetReference().GetXRef()))
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sfield := reflect.StructField{
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Name: fieldName,
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Type: reflect.StructOf(subBuilder),
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Tag: reflect.StructTag(fmt.Sprintf(`json:"%s"`, name)),
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}
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sfields = append(sfields, sfield)
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}
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for _, prop := range schema.GetProperties().GetAdditionalProperties() {
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fieldName := capitalize(prop.GetName())
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if prop.GetValue().GetReference() != nil {
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subBuilder := buildDynamicStruct(doc, prop.GetValue())
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sfield := reflect.StructField{
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Name: fieldName,
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Type: reflect.StructOf(subBuilder),
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Tag: reflect.StructTag(fmt.Sprintf(`json:"%s"`, prop.GetName())),
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}
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sfields = append(sfields, sfield)
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}
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if prop.GetValue().GetSchema() != nil {
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sfield := reflect.StructField{
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Name: fieldName,
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Type: reflect.TypeOf(getGoType(doc, prop.GetValue())),
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Tag: reflect.StructTag(fmt.Sprintf(`json:"%s"`, prop.GetName())),
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}
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sfields = append(sfields, sfield)
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}
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}
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return sfields
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}
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func findReference(doc *openapi.Document, ref string) *openapi.SchemaOrReference {
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var result *openapi.SchemaOrReference
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ref = strings.Split(ref, "#/components/schemas/")[1]
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for _, prop := range doc.Components.Schemas.GetAdditionalProperties() {
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if prop.Name == ref {
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result = prop.Value
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}
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}
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return result
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}
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// Преобразование типа OpenAPI в тип Go
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func getGoType(doc *openapi.Document, schema *openapi.SchemaOrReference) interface{} {
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switch schema.GetSchema().Type {
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case "string":
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return ""
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case "integer":
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return 0
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case "boolean":
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return false
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case "array":
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return []interface{}{}
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case "object":
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return buildDynamicStruct(doc, schema)
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default:
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return nil
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}
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}
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func capitalize(fieldName string) string {
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if fieldName == "" {
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return fieldName
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}
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// Заменяем точки на подчеркивания для унификации
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fieldName = strings.ReplaceAll(fieldName, ".", "_")
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// Разделяем строку по подчеркиваниям
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parts := strings.Split(fieldName, "_")
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if len(parts) == 1 {
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return strings.ToUpper(fieldName[:1]) + fieldName[1:]
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}
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// Обрабатываем каждый фрагмент
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for i := 0; i < len(parts); i++ {
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// Капитализируем первые буквы всех частей, кроме первой
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parts[i] = strings.Title(parts[i]) // cases.Title(language.English).String(parts[i])
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}
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// Собираем строку обратно, соединяя части без подчеркиваний
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return strings.Join(parts, "")
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}
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