test patching feed using diffpatch

internal/statsapi/feed.go

@@ -2,47 +2,16 @@ package statsapi
 
 import (
 	"encoding/json"
+	"errors"
+	"strconv"
+	"strings"
 )
 
 type FeedParams struct {
 	GamePk string
 }
 
-type FeedResponse struct {
+type FeedResponse map[string]any
-	GamePk   string
-	MetaData metadata
-	GameData gamedata
-	LiveData livedata
-}
-
-type metadata struct {
-	TimeStamp string
-}
-
-type gamedata struct {
-	Teams teams
-}
-
-type teams struct {
-	Away team
-	Home team
-}
-
-type team struct {
-	LocationName string
-	TeamName     string
-}
-
-type livedata struct {
-	Plays     plays
-	Linescore linescore
-}
-
-type plays struct {
-	AllPlays     []Play
-	CurrentPlay  Play
-	ScoringPlays []json.Number
-}
 
 type Play struct {
 	Result     result
@@ -66,20 +35,59 @@ type about struct {
 	CaptivatingIndex json.Number
 }
 
-type linescore struct {
+func patch(obj any, path string, value any) error {
-	Teams teamLines
+	if string(path[0]) == "/" {
+		path = path[1:]
+	}
+
+	var err error
+	first, rest, found := strings.Cut(path, "/")
+	if !found {
+		switch v := obj.(type) {
+		case *FeedResponse:
+			(*v)[first] = value
+		case map[string]any:
+			v[first] = value
+		case []any:
+			idx, err := strconv.Atoi(first)
+			if err != nil {
+				break
+			}
+
+			if idx < len(v) {
+				v[idx] = value
+			} else {
+				v = append(v, value)
+			}
+		default:
+			err = errors.New("couldn't determine type")
+		}
+
+		return err
+	}
+
+	switch v := obj.(type) {
+	case *FeedResponse:
+		err = patch((*v)[first], rest, value)
+	case map[string]any:
+		err = patch(v[first], rest, value)
+	case []any:
+		idx, err := strconv.Atoi(first)
+		if err != nil {
+			break
+		}
+		err = patch(v[idx], rest, value)
+	default:
+		err = errors.New("couldn't determine type")
+	}
+
+	return err
 }
 
-type teamLines struct {
+func (f *FeedResponse) Patch(instr *instruction) {
-	Home teamline
+	err := patch(f, instr.Path, instr.Value)
-	Away teamline
+	if err != nil {
-}
+	}
-
-type teamline struct {
-	Runs       json.Number
-	Hits       json.Number
-	Errors     json.Number
-	LeftOnBase json.Number
 }
 
 func (p *Play) Patch(patch Patch) {

main.go

@@ -59,17 +59,34 @@ func main() {
 		log.Fatal(err)
 	}
 
-	ts := feed.MetaData.TimeStamp
+	j, err := json.Marshal(feed)
-	game, err := InitGame(feed)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(string(j))
+
+	ts := feed["metaData"].(map[string]any)["timeStamp"].(string)
+
+	var p statsapi.Push
+	err = ws.ReadJSON(&p)
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	for {
+	patches, err := statsapi.DiffPatch(gamePk, ts, p.UpdateId)
-		var p statsapi.Push
+	if err != nil {
-		err := ws.ReadJSON(&p)
+		log.Fatal(err)
-		if err != nil {
+	}
-			log.Fatal(err)
+
+	for _, patch := range patches {
+		for _, instr := range patch.Diff {
+			feed.Patch(&instr)
 		}
 	}
+
+	j, err = json.Marshal(feed)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(string(j))
 }