parser

type Field struct {
	Name           string // field name
	GoType         string // field go type
	GoTypeCrossPkg string // field go type cross package
	Comment        string // field comment
	FieldType      string // field type
	IsList         bool   // is list
	IsMap          bool   // is map
	ImportPkgName  string // e.g. anypb
	ImportPkgPath  string // import path e.g. google.golang.org/protobuf/types/known/anypb
}

type PbService struct {
	Name      string           // Greeter
	LowerName string           // greeter first character to lower
	Methods   []*ServiceMethod // service methods

	CutServiceName      string // GreeterService --> Greeter
	LowerCutServiceName string // GreeterService --> greeter

	ImportPkgMap      map[string]string // e.g. `userV1`:`userV1 "user/api/user/v1"`
	FieldImportPkgMap map[string]string // e.g. `userV1`:`userV1 "user/api/user/v1"`

	ProtoFileDir string // e.g. api/user/v1
	ProtoPkgName string // e.g. userV1
}

type RPCMethod struct {
	Name       string // SayHello
	Num        int    // one rpc RPCMethod can correspond to multiple http requests
	Request    string // SayHelloReq
	Reply      string // SayHelloResp
	InvokeType int    // 0:unary, 1: client-side streaming, 2: server-side streaming, 3: bidirectional streaming

	// http_rule
	Path         string // rule
	Method       string // HTTP Method
	Body         string
	ResponseBody string

	CustomKind string
	Selector   string
	// if Selector is [ctx], and IsPassGinContext is true
	// if true, pass gin.Context to the rpc method
	IsPassGinContext bool
	// if Selector is [no_bind], IsPassGinContext and IsPassGinContext are both true
	// if true, ignore c.ShouldBindXXX for this method, you must use c.ShouldBindXXX() in rpc method
	IsIgnoreShouldBind bool

	RequestImportPkgName string // e.g. empty or userV1
	ReplyImportPkgName   string // e.g. empty or userV1

	ProtoSelfPkgPath string              // e.g. "module/api/user/v1"
	ImportPkgPaths   map[string]struct{} // exclude ProtoSelfPkgPath
}

type ServiceMethod struct {
	MethodName    string // Create
	Request       string // CreateRequest
	RequestFields []*Field
	Reply         string // CreateReply
	ReplyFields   []*Field
	Comment       string // e.g. Create a record
	InvokeType    int    // 0:unary, 1: client-side streaming, 2: server-side streaming, 3: bidirectional streaming

	ServiceName         string // Greeter
	LowerServiceName    string // greeter first character to lower
	LowerCutServiceName string // GreeterService --> greeter

	// http_rule
	Path   string // rule
	Method string // HTTP Method
	Body   string

	IsPassGinContext   bool
	IsIgnoreShouldBind bool

	RequestImportPkgName string // e.g. userV1
	ReplyImportPkgName   string // e.g. userV1
	ProtoPkgName         string // e.g. userV1
}