Merge pull request #62 from novasamatech/feature/extrinsic-builder-up…

…date

Example/Podfile.lock

@@ -25,7 +25,7 @@ PODS:
   - scrypt.c (0.1.1)
   - secp256k1.c (0.1.2)
   - Starscream (4.0.4)
-  - SubstrateSdk (3.2.1):
+  - SubstrateSdk (3.2.2):
     - BigInt (~> 5.0)
     - IrohaCrypto/ed25519 (~> 0.9.0)
     - IrohaCrypto/Scrypt (~> 0.9.0)
@@ -87,7 +87,7 @@ SPEC CHECKSUMS:
   scrypt.c: b42ae06183251329d2b2c620c226fb541a4a3592
   secp256k1.c: db47b726585d80f027423682eb369729e61b3b20
   Starscream: 5178aed56b316f13fa3bc55694e583d35dd414d9
-  SubstrateSdk: fe20689ad3f1bc680318a338c9e7dcde53e9c36b
+  SubstrateSdk: bc3da50e8e44ebb67e54fb20d5938a91ed85fc3c
   SwiftLint: 4fa9579c63416865179bc416f0a92d55f009600d
   TweetNacl: 3abf4d1d2082b0114e7a67410e300892448951e6
   xxHash-Swift: 30bd6a7507b3b7348a277c49b1cb6346c2905ec7

SubstrateSdk.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'SubstrateSdk'
-  s.version          = '3.2.1'
+  s.version          = '3.2.2'
   s.summary          = 'Utility library that implements clients specific logic to interact with substrate based networks'
 
   s.homepage         = 'https://github.com/nova-wallet/substrate-sdk-ios'

SubstrateSdk/Classes/Extrinsic/ExtrinsicBuilder.swift

@@ -12,6 +12,7 @@ public protocol ExtrinsicBuilderProtocol: AnyObject {
     func with(runtimeJsonContext: RuntimeJsonContext) -> Self
     func with(signaturePayloadFormat: ExtrinsicSignaturePayloadFormat) -> Self
     func adding<T: RuntimeCallable>(call: T) throws -> Self
+    func adding<T: RuntimeCallable>(call: T, at index: Int) throws -> Self
     func adding(rawCall: Data) throws -> Self
     func adding(extrinsicSignedExtension: ExtrinsicSignedExtending) -> Self
     func wrappingCalls(for mapClosure: (JSON) throws -> JSON) throws -> Self
@@ -61,6 +62,7 @@ public enum ExtrinsicBuilderError: Error {
     case missingAddress
     case unsupportedSignedExtension(_ value: String)
     case unsupportedBatch
+    case indexOutOfBounds
 }
 
 public class ExtrinsicBuilder {
@@ -329,6 +331,17 @@ extension ExtrinsicBuilder: ExtrinsicBuilderProtocol {
 
         return self
     }
+
+    public func adding<T: RuntimeCallable>(call: T, at index: Int) throws -> Self {
+        guard index <= calls.count else {
+            throw ExtrinsicBuilderError.indexOutOfBounds
+        }
+
+        let json = try call.toScaleCompatibleJSON(with: runtimeJsonContext?.toRawContext())
+        calls.insert(json, at: index)
+
+        return self
+    }
 
     public func adding(rawCall: Data) throws -> Self {
         let json = JSON.stringValue(rawCall.toHex())