@agentica/core/src/transformers/transformHistory.ts

Agentic AI Library specialized in LLM Function Calling

import type { AgenticaOperation } from "../context/AgenticaOperation";
import type { AgenticaUserMessageHistory } from "../histories";
import type { AgenticaAssistantMessageHistory } from "../histories/AgenticaAssistantMessageHistory";
import type { AgenticaCancelHistory } from "../histories/AgenticaCancelHistory";
import type { AgenticaDescribeHistory } from "../histories/AgenticaDescribeHistory";
import type { AgenticaExecuteHistory } from "../histories/AgenticaExecuteHistory";
import type { AgenticaHistory } from "../histories/AgenticaHistory";
import type { AgenticaSelectHistory } from "../histories/AgenticaSelectHistory";
import type { AgenticaSystemMessageHistory } from "../histories/AgenticaSystemMessageHistory";
import type { IAgenticaHistoryJson } from "../json/IAgenticaHistoryJson";

import { createAssistantMessageHistory, createCancelHistory, createDescribeHistory, createExecuteHistory, createSelectHistory, createSystemMessageHistory, createUserMessageHistory } from "../factory/histories";
import { createOperationSelection } from "../factory/operations";

/**
 * @internal
 */
export function transformHistory(props: {
  operations: Map<string, Map<string, AgenticaOperation>>;
  history: IAgenticaHistoryJson;
}): AgenticaHistory {
  // USER
  if (props.history.type === "userMessage") {
    return transformUserMessage({
      history: props.history,
    });
  }
  // ASSISTANT
  else if (props.history.type === "assistantMessage") {
    return transformAssistantMessage({
      history: props.history,
    });
  }
  // SYSTEM
  else if (props.history.type === "systemMessage") {
    return transformSystemMessage({
      history: props.history,
    });
  }
  // SELECT & CANCEL
  else if (props.history.type === "select") {
    return transformSelect({
      operations: props.operations,
      history: props.history,
    });
  }
  else if (props.history.type === "cancel") {
    return transformCancel({
      operations: props.operations,
      history: props.history,
    });
  }
  // EXECUTE
  else if (props.history.type === "execute") {
    return transformExecute({
      operations: props.operations,
      history: props.history,
    });
  }
  return transformDescribe({
    operations: props.operations,
    history: props.history,
  });
}

function transformAssistantMessage(props: {
  history: IAgenticaHistoryJson.IAssistantMessage;
}): AgenticaAssistantMessageHistory {
  return createAssistantMessageHistory(props.history);
}

function transformSystemMessage(props: {
  history: IAgenticaHistoryJson.ISystemMessage;
}): AgenticaSystemMessageHistory {
  return createSystemMessageHistory(props.history);
}

function transformUserMessage(props: {
  history: IAgenticaHistoryJson.IUserMessage;
}): AgenticaUserMessageHistory {
  return createUserMessageHistory(props.history);
}

function transformSelect(props: {
  operations: Map<string, Map<string, AgenticaOperation>>;
  history: IAgenticaHistoryJson.ISelect;
}): AgenticaSelectHistory {
  return createSelectHistory({
    id: props.history.id,
    created_at: props.history.created_at,
    selection: createOperationSelection({
      operation: findOperation({
        operations: props.operations,
        input: props.history.selection.operation,
      }),
      reason: props.history.selection.reason,
    }),
  });
}

function transformCancel(props: {
  operations: Map<string, Map<string, AgenticaOperation>>;
  history: IAgenticaHistoryJson.ICancel;
}): AgenticaCancelHistory {
  return createCancelHistory({
    id: props.history.id,
    created_at: props.history.created_at,
    selection: createOperationSelection({
      operation: findOperation({
        operations: props.operations,
        input: props.history.selection.operation,
      }),
      reason: props.history.selection.reason,
    }),
  });
}

function transformExecute(props: {
  operations: Map<string, Map<string, AgenticaOperation>>;
  history: IAgenticaHistoryJson.IExecute;
}): AgenticaExecuteHistory {
  return createExecuteHistory({
    id: props.history.id,
    created_at: props.history.created_at,
    operation: findOperation({
      operations: props.operations,
      input: props.history.operation,
    }),
    arguments: props.history.arguments,
    /**
     * @TODO fix it
     * The property and value have a type mismatch, but it works.
     */
    value: props.history.value as Record<string, unknown>,
    success: props.history.success,
  });
}

function transformDescribe(props: {
  operations: Map<string, Map<string, AgenticaOperation>>;
  history: IAgenticaHistoryJson.IDescribe;
}): AgenticaDescribeHistory {
  return createDescribeHistory({
    id: props.history.id,
    created_at: props.history.created_at,
    text: props.history.text,
    executes: props.history.executes.map(next =>
      transformExecute({
        operations: props.operations,
        history: next,
      }),
    ),
  });
}

function findOperation(props: {
  operations: Map<string, Map<string, AgenticaOperation>>;
  input: {
    controller: string;
    function: string;
  };
}): AgenticaOperation {
  const found: AgenticaOperation | undefined = props.operations
    .get(props.input.controller)
    ?.get(props.input.function);
  if (found === undefined) {
    throw new Error(
      `No operation found: (controller: ${props.input.controller}, function: ${props.input.function})`,
    );
  }
  return found;
}