fix: ability to specify @GraphQLName on input types without suffix

Currently input types are always suffixed with `Input` which is problematic as there are use cases where users might want to provide different custom name. This change adds check whether specified type is input only and if thats the case it does not attempt to add `Input` suffix.

```kotlin
// old: MyClassInput
// new: MyClass
@GraphQLValidObjectLocations([GraphQLValidObjectLocations.Locations.INPUT_OBJECT])
class MyClass

// can also be combined with renaming
// old: MyRenamedClassInput
// new: MyRenamedClass
@GraphQLValidObjectLocations([GraphQLValidObjectLocations.Locations.INPUT_OBJECT])
@GraphQLName("MyRenamedClass")
class MyClass
```

generator/graphql-kotlin-schema-generator/src/main/kotlin/com/expediagroup/graphql/generator/internal/extensions/kClassExtensions.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 Expedia, Inc
+ * Copyright 2024 Expedia, Inc
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,7 @@
 
 package com.expediagroup.graphql.generator.internal.extensions
 
+import com.expediagroup.graphql.generator.annotations.GraphQLValidObjectLocations
 import com.expediagroup.graphql.generator.exceptions.CouldNotGetNameOfKClassException
 import com.expediagroup.graphql.generator.hooks.SchemaGeneratorHooks
 import com.expediagroup.graphql.generator.internal.filters.functionFilters
@@ -28,6 +29,7 @@ import kotlin.reflect.KProperty
 import kotlin.reflect.KVisibility
 import kotlin.reflect.full.declaredMemberFunctions
 import kotlin.reflect.full.declaredMemberProperties
+import kotlin.reflect.full.findAnnotation
 import kotlin.reflect.full.findParameterByName
 import kotlin.reflect.full.isSubclassOf
 import kotlin.reflect.full.memberFunctions
@@ -84,12 +86,16 @@ internal fun KClass<*>.isListType(isDirective: Boolean = false): Boolean = this.
 
 @Throws(CouldNotGetNameOfKClassException::class)
 internal fun KClass<*>.getSimpleName(isInputClass: Boolean = false): String {
+    val isInputOnlyLocation = this.findAnnotation<GraphQLValidObjectLocations>().let {
+        it != null && it.locations.size == 1 && it.locations.contains(GraphQLValidObjectLocations.Locations.INPUT_OBJECT)
+    }
+
     val name = this.getGraphQLName()
         ?: this.simpleName
         ?: throw CouldNotGetNameOfKClassException(this)
 
     return when {
-        isInputClass -> if (name.endsWith(INPUT_SUFFIX, true)) name else "$name$INPUT_SUFFIX"
+        isInputClass -> if (name.endsWith(INPUT_SUFFIX, true) || isInputOnlyLocation) name else "$name$INPUT_SUFFIX"
         else -> name
     }
 }

generator/graphql-kotlin-schema-generator/src/test/kotlin/com/expediagroup/graphql/generator/internal/extensions/KClassExtensionsTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 Expedia, Inc
+ * Copyright 2024 Expedia, Inc
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ package com.expediagroup.graphql.generator.internal.extensions
 import com.expediagroup.graphql.generator.annotations.GraphQLIgnore
 import com.expediagroup.graphql.generator.annotations.GraphQLName
 import com.expediagroup.graphql.generator.annotations.GraphQLUnion
+import com.expediagroup.graphql.generator.annotations.GraphQLValidObjectLocations
 import com.expediagroup.graphql.generator.exceptions.CouldNotGetNameOfKClassException
 import com.expediagroup.graphql.generator.hooks.NoopSchemaGeneratorHooks
 import com.expediagroup.graphql.generator.hooks.SchemaGeneratorHooks
@@ -77,6 +78,13 @@ open class KClassExtensionsTest {
     @GraphQLName("MyClassRenamedInput")
     class MyClassCustomNameInput
 
+    @GraphQLValidObjectLocations([GraphQLValidObjectLocations.Locations.INPUT_OBJECT])
+    class MyInputClassWithoutSuffix
+
+    @GraphQLValidObjectLocations([GraphQLValidObjectLocations.Locations.INPUT_OBJECT])
+    @GraphQLName("MyClass")
+    class MyInputClassWithoutSuffixUsingCustomName
+
     protected class MyProtectedClass
 
     class MyPublicClass
@@ -378,4 +386,10 @@ open class KClassExtensionsTest {
         assertFalse(IgnoredClass::class.isValidAdditionalType(true))
         assertFalse(IgnoredClass::class.isValidAdditionalType(false))
     }
+
+    @Test
+    fun `@GraphQLName does not apply input suffix on input only classes`() {
+        assertEquals("MyInputClassWithoutSuffix", MyInputClassWithoutSuffix::class.getSimpleName(isInputClass = true))
+        assertEquals("MyClass", MyInputClassWithoutSuffixUsingCustomName::class.getSimpleName(isInputClass = true))
+    }
 }