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from __future__ import annotations
from typing import Any, Iterator, Literal, Optional
from pydantic import BaseModel, Field
from autogpt.prompts.utils import format_numbered_list, indent
class Action(BaseModel):
name: str
args: dict[str, Any]
reasoning: str
def format_call(self) -> str:
return (
f"{self.name}"
f"({', '.join([f'{a}={repr(v)}' for a, v in self.args.items()])})"
)
class ActionSuccessResult(BaseModel):
outputs: Any
status: Literal["success"] = "success"
def __str__(self) -> str:
outputs = str(self.outputs).replace("```", r"\```")
multiline = "\n" in outputs
return f"```\n{self.outputs}\n```" if multiline else str(self.outputs)
class ErrorInfo(BaseModel):
args: tuple
message: str
exception_type: str
repr: str
@staticmethod
def from_exception(exception: Exception) -> ErrorInfo:
return ErrorInfo(
args=exception.args,
message=getattr(exception, "message", exception.args[0]),
exception_type=exception.__class__.__name__,
repr=repr(exception),
)
def __str__(self):
return repr(self)
def __repr__(self):
return self.repr
class ActionErrorResult(BaseModel):
reason: str
error: Optional[ErrorInfo] = None
status: Literal["error"] = "error"
@staticmethod
def from_exception(exception: Exception) -> ActionErrorResult:
return ActionErrorResult(
reason=getattr(exception, "message", exception.args[0]),
error=ErrorInfo.from_exception(exception),
)
def __str__(self) -> str:
return f"Action failed: '{self.reason}'"
class ActionInterruptedByHuman(BaseModel):
feedback: str
status: Literal["interrupted_by_human"] = "interrupted_by_human"
def __str__(self) -> str:
return (
'The user interrupted the action with the following feedback: "%s"'
% self.feedback
)
ActionResult = ActionSuccessResult | ActionErrorResult | ActionInterruptedByHuman
class Episode(BaseModel):
action: Action
result: ActionResult | None
def __str__(self) -> str:
executed_action = f"Executed `{self.action.format_call()}`"
action_result = f": {self.result}" if self.result else "."
return executed_action + action_result
class EpisodicActionHistory(BaseModel):
"""Utility container for an action history"""
episodes: list[Episode] = Field(default_factory=list)
cursor: int = 0
@property
def current_episode(self) -> Episode | None:
if self.cursor == len(self):
return None
return self[self.cursor]
def __getitem__(self, key: int) -> Episode:
return self.episodes[key]
def __iter__(self) -> Iterator[Episode]:
return iter(self.episodes)
def __len__(self) -> int:
return len(self.episodes)
def __bool__(self) -> bool:
return len(self.episodes) > 0
def register_action(self, action: Action) -> None:
if not self.current_episode:
self.episodes.append(Episode(action=action, result=None))
assert self.current_episode
elif self.current_episode.action:
raise ValueError("Action for current cycle already set")
def register_result(self, result: ActionResult) -> None:
if not self.current_episode:
raise RuntimeError("Cannot register result for cycle without action")
elif self.current_episode.result:
raise ValueError("Result for current cycle already set")
self.current_episode.result = result
self.cursor = len(self.episodes)
def rewind(self, number_of_episodes: int = 0) -> None:
"""Resets the history to an earlier state.
Params:
number_of_cycles (int): The number of cycles to rewind. Default is 0.
When set to 0, it will only reset the current cycle.
"""
# Remove partial record of current cycle
if self.current_episode:
if self.current_episode.action and not self.current_episode.result:
self.episodes.pop(self.cursor)
# Rewind the specified number of cycles
if number_of_episodes > 0:
self.episodes = self.episodes[:-number_of_episodes]
self.cursor = len(self.episodes)
def fmt_list(self) -> str:
return format_numbered_list(self.episodes)
def fmt_paragraph(self) -> str:
steps: list[str] = []
for i, c in enumerate(self.episodes, 1):
step = f"### Step {i}: Executed `{c.action.format_call()}`\n"
step += f'- **Reasoning:** "{c.action.reasoning}"\n'
step += (
f"- **Status:** `{c.result.status if c.result else 'did_not_finish'}`\n"
)
if c.result:
if c.result.status == "success":
result = str(c.result)
result = "\n" + indent(result) if "\n" in result else result
step += f"- **Output:** {result}"
elif c.result.status == "error":
step += f"- **Reason:** {c.result.reason}\n"
if c.result.error:
step += f"- **Error:** {c.result.error}\n"
elif c.result.status == "interrupted_by_human":
step += f"- **Feedback:** {c.result.feedback}\n"
steps.append(step)
return "\n\n".join(steps)
|
