package main

import (
	"net/http"
	"strings"

	"go.wit.com/lib/protobuf/forgepb"
	"go.wit.com/lib/protobuf/gitpb"
	"go.wit.com/lib/protobuf/httppb"
	"go.wit.com/log"
)

func addNewPatches(pb *forgepb.Patches, reqPB *httppb.HttpRequest) *forgepb.Patches {
	newPatchesPB := new(forgepb.Patches)
	for newpatch := range pb.IterAll() {
		me.forge.AddNewPatch(newpatch)
		newPatchesPB.Append(newpatch)
	}
	return newPatchesPB
}

func sendPendingPatches(pb *forgepb.Patches, reqPB *httppb.HttpRequest) *forgepb.Patches {
	allPatchesPB := new(forgepb.Patches)
	for pset := range me.forge.Patchsets.IterAll() {
		for newpatch := range pset.Patches.IterAll() {
			allPatchesPB.Append(newpatch)
		}
	}
	return allPatchesPB
}

func handlePatches(w http.ResponseWriter, pb *forgepb.Patches) error {
	route := pb.HttpRequest.Route

	log.Info("GOT PATCHES ROUTE", route, "with # patches =", pb.Len())
	if strings.HasPrefix(route, "/patches/old") {
	} else if strings.HasPrefix(route, "/patches/new") {
		log.Info("add new patches")
	} else {
		log.Info("unknown route", route)
	}

	return nil
}

func makeReposPB(reqPB *httppb.HttpRequest) (*gitpb.Repos, error) {
	pb := gitpb.NewRepos()
	err := pb.Unmarshal(reqPB.Body)
	return pb, err
}

func makePatchesPB(reqPB *httppb.HttpRequest) (*forgepb.Patches, error) {
	pb := forgepb.NewPatches()
	err := pb.Unmarshal(reqPB.Body)
	return pb, err
}

func sendPatchesError(w http.ResponseWriter, r *forgepb.Patches, err error) error {
	log.Info("send error back to user", err)
	return nil
}

func marshalPatchesPB(r *http.Request, msg []byte) (*forgepb.Patches, error) {
	pb := forgepb.NewPatches()

	if err := pb.Unmarshal(msg); err != nil {
		log.Info("proto.Unmarshal() failed on wire message len", len(msg), err)
		// add the header
		pb.AddHttpToPB(r)
		return pb, err
	}
	// add the header
	pb.AddHttpToPB(r)
	return pb, nil
}