package service

import (
	service "github.com/nspcc-dev/neofs-api-go/v2/service/grpc"
)

func VersionToGRPCMessage(v *Version) *service.Version {
	if v == nil {
		return nil
	}

	msg := new(service.Version)

	msg.SetMajor(v.GetMajor())
	msg.SetMinor(v.GetMinor())

	return msg
}

func VersionFromGRPCMessage(m *service.Version) *Version {
	if m == nil {
		return nil
	}

	v := new(Version)

	v.SetMajor(m.GetMajor())
	v.SetMinor(m.GetMinor())

	return v
}

func XHeaderToGRPCMessage(x *XHeader) *service.XHeader {
	if x == nil {
		return nil
	}

	m := new(service.XHeader)

	m.SetKey(x.GetKey())
	m.SetValue(x.GetValue())

	return m
}

func XHeaderFromGRPCMessage(m *service.XHeader) *XHeader {
	if m == nil {
		return nil
	}

	x := new(XHeader)

	x.SetKey(m.GetKey())
	x.SetValue(m.GetValue())

	return x
}

func SessionTokenToGRPCMessage(t *SessionToken) *service.SessionToken {
	// TODO: fill me
	return nil
}

func SessionTokenFromGRPCMessage(m *service.SessionToken) *SessionToken {
	// TODO: fill me
	return nil
}

func BearerTokenToGRPCMessage(t *BearerToken) *service.BearerToken {
	// TODO: fill me
	return nil
}

func BearerTokenFromGRPCMessage(m *service.BearerToken) *BearerToken {
	// TODO: fill me
	return nil
}

func RequestVerificationHeaderToGRPCMessage(r *RequestVerificationHeader) *service.RequestVerificationHeader {
	if r == nil {
		return nil
	}

	m := new(service.RequestVerificationHeader)

	m.SetBodySignature(
		SignatureToGRPCMessage(r.GetBodySignature()),
	)

	m.SetMetaSignature(
		SignatureToGRPCMessage(r.GetMetaSignature()),
	)

	m.SetOriginSignature(
		SignatureToGRPCMessage(r.GetOriginSignature()),
	)

	m.SetOrigin(
		RequestVerificationHeaderToGRPCMessage(r.GetOrigin()),
	)

	return m
}

func RequestVerificationHeaderFromGRPCMessage(m *service.RequestVerificationHeader) *RequestVerificationHeader {
	if m == nil {
		return nil
	}

	r := new(RequestVerificationHeader)

	r.SetBodySignature(
		SignatureFromGRPCMessage(m.GetBodySignature()),
	)

	r.SetMetaSignature(
		SignatureFromGRPCMessage(m.GetMetaSignature()),
	)

	r.SetOriginSignature(
		SignatureFromGRPCMessage(m.GetOriginSignature()),
	)

	r.SetOrigin(
		RequestVerificationHeaderFromGRPCMessage(m.GetOrigin()),
	)

	return r
}

func RequestMetaHeaderToGRPCMessage(r *RequestMetaHeader) *service.RequestMetaHeader {
	if r == nil {
		return nil
	}

	m := new(service.RequestMetaHeader)

	m.SetTtl(r.GetTTL())
	m.SetEpoch(r.GetEpoch())

	m.SetVersion(
		VersionToGRPCMessage(r.GetVersion()),
	)

	m.SetSessionToken(
		SessionTokenToGRPCMessage(r.GetSessionToken()),
	)

	m.SetBearerToken(
		BearerTokenToGRPCMessage(r.GetBearerToken()),
	)

	m.SetOrigin(
		RequestMetaHeaderToGRPCMessage(r.GetOrigin()),
	)

	xHeaders := r.GetXHeaders()
	xHdrMsg := make([]*service.XHeader, 0, len(xHeaders))

	for i := range xHeaders {
		xHdrMsg = append(xHdrMsg, XHeaderToGRPCMessage(xHeaders[i]))
	}

	return m
}

func RequestMetaHeaderFromGRPCMessage(m *service.RequestMetaHeader) *RequestMetaHeader {
	if m == nil {
		return nil
	}

	r := new(RequestMetaHeader)

	r.SetTTL(m.GetTtl())
	r.SetEpoch(m.GetEpoch())

	r.SetVersion(
		VersionFromGRPCMessage(m.GetVersion()),
	)

	r.SetSessionToken(
		SessionTokenFromGRPCMessage(m.GetSessionToken()),
	)

	r.SetBearerToken(
		BearerTokenFromGRPCMessage(m.GetBearerToken()),
	)

	r.SetOrigin(
		RequestMetaHeaderFromGRPCMessage(m.GetOrigin()),
	)

	xHdrMsg := m.GetXHeaders()
	xHeaders := make([]*XHeader, 0, len(xHdrMsg))

	for i := range xHdrMsg {
		xHeaders = append(xHeaders, XHeaderFromGRPCMessage(xHdrMsg[i]))
	}

	return r
}

func SignatureToGRPCMessage(s *Signature) *service.Signature {
	if s == nil {
		return nil
	}

	m := new(service.Signature)

	m.SetKey(s.GetKey())
	m.SetSign(s.GetSign())

	return m
}

func SignatureFromGRPCMessage(m *service.Signature) *Signature {
	if m == nil {
		return nil
	}

	s := new(Signature)

	s.SetKey(m.GetKey())
	s.SetSign(m.GetSign())

	return s
}