add oracle for getting uuid

Comment/comment.go

@@ -1,8 +1,9 @@
 package Comment
 
 import (
-	guuid "github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/oracle"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
+	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )
 
@@ -17,8 +18,9 @@ type Comment struct {
 
 func CreateNewComment(authorId string, postId string, text string) {
 	ctx := storage.GetContext()
+
 	newComment := Comment{
-		id:       guuid.New().String(),
+		id:       "none",
 		authorId: authorId,
 		postId:   postId,
 		text:     text,
@@ -26,11 +28,32 @@ func CreateNewComment(authorId string, postId string, text string) {
 		dislikes: 0,
 	}
 
+	storeURL := "https://www.uuidgenerator.net/api/version7"
+	oracle.Request(storeURL, nil, "cbGetUUID", nil, oracle.MinimumResponseGas)
+
+	newComment.id = storage.Get(ctx, "lastCommentId").(string)
+
 	comments := GetByPostId(postId)
 	comments = append(comments, newComment)
 	storage.Put(ctx, postId+"_comment", std.Serialize(comments))
 }
 
+func cbGetUUID(url string, commentData any, code int, result []byte) {
+	callingHash := runtime.GetCallingScriptHash()
+	if !callingHash.Equals(oracle.Hash) {
+		panic("not called from the oracle contract")
+	}
+	if code != oracle.Success {
+		panic("request failed for " + url + " with code " + std.Itoa(code, 10))
+	}
+	runtime.Log("result for " + url + " is: " + string(result))
+
+	runtime.Log("Last Comment id is: " + string(result))
+
+	ctx := storage.GetContext()
+	storage.Put(ctx, "lastCommentId", string(result))
+}
+
 func GetByPostId(postId string) []Comment {
 	ctx := storage.GetContext()
 	return std.Deserialize(storage.Get(ctx, postId+"_comment").([]byte)).([]Comment)
@@ -80,4 +103,4 @@ func UpdateComment(comment Comment, postId string) {
 	}
 
 	storage.Put(ctx, postId+"_comment", std.Serialize(comments))
-}
+}

Comment/comment.json

@@ -1 +0,0 @@
-{"name":"comment","abi":{"methods":[{"name":"createNewComment","offset":0,"parameters":[{"name":"authorId","type":"String"},{"name":"postId","type":"String"},{"name":"text","type":"String"}],"returntype":"Void","safe":false},{"name":"getByAuthorId","offset":109,"parameters":[{"name":"postId","type":"String"},{"name":"authorId","type":"String"}],"returntype":"Array","safe":false},{"name":"getByPostId","offset":61,"parameters":[{"name":"postId","type":"String"}],"returntype":"Array","safe":false},{"name":"getComment","offset":157,"parameters":[{"name":"commentId","type":"String"},{"name":"postId","type":"String"}],"returntype":"Array","safe":false},{"name":"rateComment","offset":259,"parameters":[{"name":"isLike","type":"Boolean"},{"name":"postId","type":"String"},{"name":"commentId","type":"String"}],"returntype":"Void","safe":false}],"events":[{"name":"Hello world!","parameters":[{"name":"args","type":"Array"}]}]},"features":{},"groups":[],"permissions":[{"contract":"*","methods":"*"}],"supportedstandards":[],"trusts":[],"extra":null}

Post/neo-go.yml

@@ -1,11 +0,0 @@
-name: Post
-sourceurl: http://example.com/
-safemethods: []
-supportedstandards: []
-events:
-    - name: Hello world!
-      parameters:
-        - name: args
-          type: Array
-permissions:
-    - methods: '*'

Post/post_contract.go

@@ -1,10 +1,9 @@
 package Post
 
 import (
-	"strconv"
-
-	guuid "github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/oracle"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
+	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )
 
@@ -23,13 +22,6 @@ const (
 	lastIndex = "_lastIndex"
 )
 
-/*
-	func _deploy(data interface{}, isUpdate bool, userId string) {
-		if isUpdate {
-			return
-		}
-	}
-*/
 func NewPost(authorId string, text string, postName string) {
 	ctx := storage.GetContext()
 
@@ -40,22 +32,44 @@ func NewPost(authorId string, text string, postName string) {
 		likes:    0,
 		category: "none",
 		postName: postName,
-		id:       guuid.New().String(),
+		id:       "none",
 	}
+
+	storeURL := "https://www.uuidgenerator.net/api/version7"
+	oracle.Request(storeURL, nil, "cbGetUUID", nil, oracle.MinimumResponseGas)
+	post.id = storage.Get(ctx, "lastPostId").(string)
+
 	storage.Put(ctx, post.id, std.Serialize(post))
+
 	updatePostIndex(authorId)
-	storage.Put(ctx, authorId+strconv.Itoa(getPostIndex(authorId)), post.id)
+	lastPostIndex := storage.Get(ctx, authorId+lastIndex)
+
+	storage.Put(ctx, authorId+lastPostIndex.(string), post.id)
 }
+
+func CbGetUUID(url string, postData any, code int, result []byte) {
+	callingHash := runtime.GetCallingScriptHash()
+	if !callingHash.Equals(oracle.Hash) {
+		panic("not called from the oracle contract")
+	}
+	if code != oracle.Success {
+		panic("request failed for " + url + " with code " + std.Itoa(code, 10))
+	}
+	runtime.Log("result for " + url + " is: " + string(result))
+
+	ctx := storage.GetContext()
+	storage.Put(ctx, "lastPostId", string(result))
+}
+
 func GetPost(postId string) Post {
 
 	ctx := storage.GetReadOnlyContext()
 	data := storage.Get(ctx, postId)
 	if data == nil {
-		panic("player not found")
+		panic("post not found")
 	}
 
 	return std.Deserialize(data.([]byte)).(Post)
-
 }
 
 func RatePost(isLike bool, postId string) {
@@ -79,5 +93,4 @@ func updatePostIndex(userId string) {
 	ctx := storage.GetContext()
 	index := getPostIndex(userId)
 	storage.Put(ctx, userId+lastIndex, index+1)
-
 }

Post/post_contract.yml

@@ -0,0 +1,6 @@
+name: Post
+safemethods: []
+supportedstandards: []
+events:
+permissions:
+  - methods: ["request"]

User/user.go

@@ -3,6 +3,7 @@ package Users
 import (
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
+	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )
 
@@ -14,6 +15,10 @@ type User struct {
 	ownerHash interop.Hash160
 }
 
+const (
+	lastIndex = "_lastIndex"
+)
+
 func NewUser(name string, surname string, login string, password string, owner interop.Hash160) {
 	ctx := storage.GetContext()
 
@@ -44,7 +49,8 @@ func GetUser(ctx storage.Context, login string) User {
 }
 
 func saveUser(ctx storage.Context, userLogin string, user User) {
-	storage.Put(ctx, user.ownerHash, std.Serialize(user))
-	storage.Put(ctx, string(user.ownerHash)+"LastPost", -1)
-	storage.Put(ctx, string(user.ownerHash)+"LastCom", -1)
+	runtime.Log("User " + userLogin + " was created")
+
+	storage.Put(ctx, userLogin+lastIndex, -1)
+	storage.Put(ctx, userLogin, std.Serialize(user))
 }

go.mod

@@ -2,7 +2,4 @@ module blog
 
 go 1.21.5
 
-require (
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231219060339-de98b39a9502
-	github.com/rs/xid v1.5.0
-)
+require github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231219060339-de98b39a9502

go.sum

@@ -1,4 +1,2 @@
 github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231219060339-de98b39a9502 h1:HwR9fWkdJXCbsTnrb2Rm92xkDGdEM0VHvZV+7XJUXM0=
 github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231219060339-de98b39a9502/go.mod h1:J/Mk6+nKeKSW4wygkZQFLQ6SkLOSGX5Ga0RuuuktEag=
-github.com/rs/xid v1.5.0 h1:mKX4bl4iPYJtEIxp6CYiUuLQ/8DYMoz0PUdtGgMFRVc=
-github.com/rs/xid v1.5.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=