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transport_exchanges.go
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/
transport_exchanges.go
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package template
import (
"context"
. "github.com/dave/jennifer/jen"
"github.com/devimteam/microgen/generator/write_strategy"
"github.com/vetcher/go-astra/types"
)
type exchangeTemplate struct {
info *GenerationInfo
}
func NewExchangeTemplate(info *GenerationInfo) Template {
return &exchangeTemplate{
info: info,
}
}
func requestStructName(signature *types.Function) string {
return signature.Name + "Request"
}
func responseStructName(signature *types.Function) string {
return signature.Name + "Response"
}
// Renders exchanges file.
//
// package visitsvc
//
// import (
// "gitlab.devim.team/microservices/visitsvc/entity"
// )
//
// type CreateVisitRequest struct {
// Visit *entity.Visit `json:"visit"`
// }
//
// type CreateVisitResponse struct {
// Res *entity.Visit `json:"res"`
// Err error `json:"err"`
// }
//
func (t *exchangeTemplate) Render(ctx context.Context) write_strategy.Renderer {
f := NewFile("transport")
f.HeaderComment(t.info.FileHeader)
if len(t.info.Iface.Methods) > 0 {
f.Type().Op("(")
}
for _, signature := range t.info.Iface.Methods {
if t.info.AllowedMethods[signature.Name] {
f.Add(exchange(ctx, requestStructName(signature), RemoveContextIfFirst(signature.Args))) //.Line()
f.Add(exchange(ctx, responseStructName(signature), removeErrorIfLast(signature.Results))).Line()
}
}
if len(t.info.Iface.Methods) > 0 {
f.Op(")")
}
return f
}
func (exchangeTemplate) DefaultPath() string {
return filenameBuilder(PathTransport, "exchanges")
}
func (exchangeTemplate) Prepare(ctx context.Context) error {
return nil
}
func (t *exchangeTemplate) ChooseStrategy(ctx context.Context) (write_strategy.Strategy, error) {
return write_strategy.NewCreateFileStrategy(t.info.OutputFilePath, t.DefaultPath()), nil
}
// Renders exchanges that represents requests and responses.
//
// type CreateVisitRequest struct {
// Visit *entity.Visit `json:"visit"`
// }
//
func exchange(ctx context.Context, name string, params []types.Variable) Code {
if len(params) == 0 {
return Comment("Formal exchange type, please do not delete.").Line().
Id(name).Struct()
//Line()
}
return Id(name).StructFunc(func(g *Group) {
for _, param := range params {
g.Add(structField(ctx, ¶m))
}
}) //.Line()
}