message.input.ts

import { Field, InputType } from "type-graphql";
import { MessageRole, ActionExecutionScope } from "../types/enums";
import { BaseMessage } from "../types/base";

// GraphQL does not support union types in inputs, so we need to use
// optional fields for the different subtypes.
@InputType()
export class MessageInput extends BaseMessage {
  @Field(() => TextMessageInput, { nullable: true })
  textMessage?: TextMessageInput;

  @Field(() => ActionExecutionMessageInput, { nullable: true })
  actionExecutionMessage?: ActionExecutionMessageInput;

  @Field(() => ResultMessageInput, { nullable: true })
  resultMessage?: ResultMessageInput;
}

@InputType()
export class TextMessageInput {
  @Field(() => String)
  content: string;

  @Field(() => MessageRole)
  role: MessageRole;
}

@InputType()
export class ActionExecutionMessageInput {
  @Field(() => String)
  name: string;

  @Field(() => String)
  arguments: string;

  @Field(() => ActionExecutionScope)
  scope: ActionExecutionScope;
}

@InputType()
export class ResultMessageInput {
  @Field(() => String)
  actionExecutionId: string;

  @Field(() => String)
  actionName: string;

  @Field(() => String)
  result: string;
}