mirror of
https://github.com/hwchase17/langchain
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61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
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import logging
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from datetime import datetime as dt
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from typing import Optional, Type
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from langchain_core.callbacks import CallbackManagerForToolRun
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from langchain_core.pydantic_v1 import BaseModel, Field
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from langchain_community.tools.slack.base import SlackBaseTool
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from langchain_community.tools.slack.utils import UTC_FORMAT
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logger = logging.getLogger(__name__)
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class ScheduleMessageSchema(BaseModel):
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"""Input for ScheduleMessageTool."""
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message: str = Field(
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...,
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description="The message to be sent.",
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)
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channel: str = Field(
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...,
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description="The channel, private group, or IM channel to send message to.",
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)
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timestamp: str = Field(
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...,
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description="The datetime for when the message should be sent in the "
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' following format: YYYY-MM-DDTHH:MM:SS±hh:mm, where "T" separates the date '
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" and time components, and the time zone offset is specified as ±hh:mm. "
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' For example: "2023-06-09T10:30:00+03:00" represents June 9th, '
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" 2023, at 10:30 AM in a time zone with a positive offset of 3 "
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" hours from Coordinated Universal Time (UTC).",
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)
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class SlackScheduleMessage(SlackBaseTool):
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"""Tool for scheduling a message in Slack."""
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name: str = "schedule_message"
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description: str = (
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"Use this tool to schedule a message to be sent on a specific date and time."
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)
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args_schema: Type[ScheduleMessageSchema] = ScheduleMessageSchema
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def _run(
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self,
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message: str,
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channel: str,
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timestamp: str,
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run_manager: Optional[CallbackManagerForToolRun] = None,
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) -> str:
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try:
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unix_timestamp = dt.timestamp(dt.strptime(timestamp, UTC_FORMAT))
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result = self.client.chat_scheduleMessage(
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channel=channel, text=message, post_at=unix_timestamp
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)
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output = "Message scheduled: " + str(result)
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return output
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except Exception as e:
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return "Error scheduling message: {}".format(e)
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