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normalizator.go
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normalizator.go
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package generator
import (
"reflect"
"strings"
"unicode"
"github.com/ahmetb/go-linq"
"github.com/dave/jennifer/jen"
"github.com/spf13/cast"
)
type Normalizer struct{}
func (normalizer *Normalizer) decapitalize(str string) string {
return strings.ToLower(str[:1]) + str[1:]
}
func (normalizer *Normalizer) normalize(str string) string {
separators := "-#@!$&=.+:;_~ (){}[]"
s := strings.Trim(str, " ")
n := ""
capNext := true
for _, v := range s {
if unicode.IsUpper(v) {
n += string(v)
}
if unicode.IsDigit(v) {
n += string(v)
}
if unicode.IsLower(v) {
if capNext {
n += strings.ToUpper(string(v))
} else {
n += string(v)
}
}
if strings.ContainsRune(separators, v) {
capNext = true
} else {
capNext = false
}
}
if len(n) > 3 {
if strings.ToLower(n[len(n)-4:]) == "uuid" {
n = n[:len(n)-4] + "UUID"
}
}
if len(n) > 1 {
if strings.ToLower(n[len(n)-2:]) == "id" {
n = n[:len(n)-2] + "ID"
}
}
return n
}
func (normalizer *Normalizer) normalizeOperationName(path string, method string) string {
return normalizer.normalize(strings.ReplaceAll(strings.ToLower(method)+path, "/", "-"))
}
func (normalizer *Normalizer) doubleLineAfterEachElement(from ...jen.Code) (result []jen.Code) {
linq.From(from).SelectManyT(func(code jen.Code) linq.Query {
if reflect.DeepEqual(code, jen.Null()) || reflect.DeepEqual(code, jen.Line()) {
return linq.From([]jen.Code{})
}
return linq.From([]jen.Code{code, jen.Line(), jen.Line()})
}).ToSlice(&result)
return
}
func (normalizer *Normalizer) lineAfterEachElement(from ...jen.Code) (result []jen.Code) {
linq.From(from).SelectManyT(func(code jen.Code) linq.Query {
if reflect.DeepEqual(code, jen.Null()) || reflect.DeepEqual(code, jen.Line()) {
return linq.From([]jen.Code{})
}
return linq.From([]jen.Code{code, jen.Line()})
}).ToSlice(&result)
return result
}
func (normalizer *Normalizer) extractNameFromRef(str string) string {
if str == "" {
return ""
}
return normalizer.normalize(str[strings.LastIndex(str, "/")+1:])
}
func (normalizer *Normalizer) contentType(str string) string {
if str == "" {
return ""
}
var split = func(r rune) bool {
return r == '/' || r == '-'
}
return cast.ToString(linq.From(strings.FieldsFunc(str, split)).
AggregateWithSeedT("", func(accumulator, str string) string { return accumulator + strings.Title(str) }))
}