Fix type resolution in sub execution

shared/src/main/scala/org/adridadou/openlaw/parser/template/StructuredDocument.scala

@@ -302,24 +302,29 @@ trait TemplateExecutionResult {
   }}).variables.map(_.name)
 
   def findVariableType(variableTypeDefinition: VariableTypeDefinition):Option[VariableType] = {
-    val mainType = findVariableTypeInternal(variableTypeDefinition)
-    val parameterType = variableTypeDefinition.typeParameter.flatMap(findVariableTypeInternal)
+    val mainType = findVariableTypeAllDirection(variableTypeDefinition)
+    val parameterType = variableTypeDefinition.typeParameter.flatMap(findVariableTypeAllDirection)
     mainType match {
       case Some(varType:ParameterTypeProvider) =>
-        parameterType.map(varType.createParameterInstance)
+        Some(varType.createParameterInstance(parameterType.getOrElse(TextType)))
       case other =>
         other
     }
   }
 
-  private def findVariableTypeInternal(variableTypeDefinition: VariableTypeDefinition):Option[VariableType] =
-    variableTypes.find(_.checkTypeName(variableTypeDefinition.name)) match {
-      case Some(variableType) =>
-        Some(variableType)
-      case None =>
-        parentExecution
-          .flatMap(_.findVariableType(variableTypeDefinition))
-    }
+  private def findVariableTypeAllDirection(variableTypeDefinition: VariableTypeDefinition):Option[VariableType] =
+    findVariableTypeInternalCurrent(variableTypeDefinition) orElse
+    findVariableTypeInternalParent(variableTypeDefinition) orElse
+    findVariableTypeInternalEmbedded(variableTypeDefinition)
+
+  def findVariableTypeInternalCurrent(variableTypeDefinition: VariableTypeDefinition):Option[VariableType] =
+    variableTypes.find(_.checkTypeName(variableTypeDefinition.name))
+
+  def findVariableTypeInternalParent(variableTypeDefinition: VariableTypeDefinition):Option[VariableType] =
+    parentExecution.flatMap(parent => parent.findVariableTypeInternalCurrent(variableTypeDefinition) orElse parent.findVariableTypeInternalParent(variableTypeDefinition))
+
+  def findVariableTypeInternalEmbedded(variableTypeDefinition: VariableTypeDefinition):Option[VariableType] =
+      subExecutions.values.filter(_.embedded).flatMap(subExecution => subExecution.findVariableTypeInternalCurrent(variableTypeDefinition) orElse subExecution.findVariableType(variableTypeDefinition)).headOption
 
   def getSignatureProof(identity: Identity):Option[SignatureProof] = signatureProofs.get(identity.email) match {
     case Some(value) => Some(value)

shared/src/main/scala/org/adridadou/openlaw/parser/template/VariableDefinition.scala

@@ -184,8 +184,11 @@ final case class VariableDefinition(name: VariableName, variableTypeDefinition:O
 
   def isAnonymous: Boolean = name.isAnonymous
 
-  def varType(executionResult: TemplateExecutionResult):VariableType = variableTypeDefinition
-    .flatMap(typeDefinition => executionResult.findVariableType(typeDefinition)).getOrElse(TextType)
+  def varType(executionResult: TemplateExecutionResult):VariableType =
+    (for {
+      typeDefinition <- variableTypeDefinition
+      variableType <- executionResult.findVariableType(typeDefinition)
+    } yield variableType).getOrElse(TextType)
 
   def verifyConstructor(executionResult: TemplateExecutionResult): Result[Option[Any]] = {
     implicit val eqCls:Eq[Class[_]] = Eq.fromUniversalEquals

shared/src/main/scala/org/adridadou/openlaw/parser/template/variableTypes/EthAddressType.scala

@@ -73,7 +73,7 @@ object EthereumAddress {
   def apply(a: String): Result[EthereumAddress] = Option(a) match {
     case None => empty
     case Some(address) if address.startsWith("0x") => apply(address.substring(2))
-    case Some(address) if address.length =!= 40 => Failure("the address string should be 40 or 42 with '0x' prefix")
+    case Some(address) if address.length =!= 40 => Failure(s"the address string should be 40 or 42 with '0x' prefix. value(${address})")
     case Some(address) => apply(hex2bytes(address))
   }
 

shared/src/test/scala/org/adridadou/openlaw/vm/OpenlawExecutionEngineSpec.scala

@@ -728,6 +728,74 @@ class OpenlawExecutionEngineSpec extends FlatSpec with Matchers {
     }
   }
 
+  it should "look at sub execution results for variable type" in {
+    val mainTemplate = compile("""[[c:Clause("clause")]]""")
+    val clauseTemplate = compile(
+      """
+        |<%
+        |# Arranged Variables by Header
+        |==MOU Terms==
+        |[[Terms: Collection<Text>]]
+        |
+        |==MOU Parties==
+        |[[Party Info: Structure(
+        |    Party Name: Text;
+        |    Party Email: Identity
+        |    )]]
+        |[[#Parties: Collection<Party Info>]]
+        |%>
+        |
+        |\centered **__MEMORANDUM OF UNDERSTANDING__**
+        |
+        |**NOW, THEREFORE,** the undersigned parties (the "***Parties***") see mutual benefit in entering into a partnership and formalizing their cooperation over the matters and under the terms sufficiently described in this Memorandum of Understanding ("***MOU***"):
+        |
+        |{{#for each Term: Terms =>
+        |
+        |    ^^[[Term]]
+        |}}
+        |
+        |The Parties shall keep confidential and shall not divulge to any other party, without the other's prior written consent, any non-public information concerning this MOU and the cooperation contemplated hereby, treating such confidential information with the same due care as their own proprietary information.
+        |
+        |The Parties shall jointly operate and exchange information with the intention of completing the transactions contemplated hereby and within determined timeframes and reasonable best efforts.
+        |
+        |After a preliminary review period, not to exceed two (2) months from the date of mutual execution below, the Parties may enter into a legally-binding agreement regarding these matters and shall make reasonable best efforts to conduct a meeting regarding the same following such MOU review period.
+        |
+        |This MOU is not a legally-binding agreement.
+        |
+        |***__SIGNATORIES__***
+        |
+        |{{#for each Party: Parties =>
+        |
+        |**[[Party.Party Name | Uppercase]]**
+        |
+        |*__[[Party.Party Email | Signature]]__*
+        |Authorized Representative
+        |
+        |}}
+        |""".stripMargin)
+
+    engine.execute(mainTemplate, TemplateParameters(), Map(TemplateSourceIdentifier(TemplateTitle("clause")) -> clauseTemplate,TemplateSourceIdentifier(TemplateTitle("clause")) -> clauseTemplate)) match {
+      case Right(result) =>
+        val variable = VariableDefinition(VariableName("Parties"), Some(VariableTypeDefinition("Collection",Some(VariableTypeDefinition("Parefhuzegfty Info",None)))))
+        getCollection(variable, result, "")
+      case Left(ex) =>
+        fail(ex.message, ex)
+    }
+  }
+
+  def getCollection(variable:VariableDefinition, executionResult: TemplateExecutionResult, value:String):CollectionValue = {
+    variable.varType(executionResult) match {
+      case collectionType:CollectionType =>
+        if(value.isEmpty) {
+          CollectionValue(collectionType = collectionType)
+        } else {
+          VariableType.convert[CollectionValue](collectionType.cast(value, executionResult).getOrThrow()).getOrThrow()
+        }
+      case other =>
+        throw new RuntimeException(s"add element to collection only works for a variable of type Collection, not '${other.name}'")
+    }
+  }
+
   it should "fail if it makes a divide by zero error" in {
     val template =
       compile("""