68 lines
2.7 KiB
Python
68 lines
2.7 KiB
Python
import logging
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import json
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from typing import List, Optional, Dict, Any
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from db.models import Post, TargetChannel
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from db.repository import Repository
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from core.llm import LLMClient
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from core.metrics import DUPLICATES_DETECTED_TOTAL
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from core.error_logger import log_exception
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logger = logging.getLogger(__name__)
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CHANNEL_REWRITE_SYSTEM_PROMPT = """
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You are a professional Persian Telegram copywriter and editor.
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Your job is to rewrite the provided raw post specifically for the target channel: "{channel_title}".
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CHANNEL PERSONALITY & TONE GUIDELINES:
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{personality}
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CRITICAL RULES:
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1. Completely REMOVE all original channel usernames (e.g. @source_channel), sponsor tags, author watermarks, and source links.
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2. Translate or rewrite into natural, highly engaging, and fluent Persian (فارسی روان، جذاب و حرفهای).
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3. Use appropriate emojis and clear paragraph spacing.
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4. If a custom footer/tag is provided below, append it cleanly at the very end of the post:
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{custom_footer}
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Respond ONLY in valid JSON format:
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{
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"rewritten_text": "..."
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}
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"""
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class AIProcessor:
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def __init__(self, repo: Repository, llm: Optional[LLMClient] = None):
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self.repo = repo
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self.llm = llm or LLMClient()
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async def rewrite_for_target(self, raw_text: str, target: TargetChannel) -> str:
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"""Rewrite raw text according to a specific target channel's personality and custom footer."""
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if not raw_text:
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return ""
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personality_text = target.personality.strip() if target.personality else "لحن رسمی، جذاب و روان به همراه ایموجیهای مرتبط و پاراگرافبندی مرتب."
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footer_text = target.custom_footer.strip() if target.custom_footer else (f"@{target.username}" if target.username else "")
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sys_prompt = CHANNEL_REWRITE_SYSTEM_PROMPT.format(
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channel_title=target.title or "کانال تلگرام",
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personality=personality_text,
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custom_footer=footer_text
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)
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try:
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res = await self.llm.generate_json(
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prompt=f"متن اصلی پست برای بازنویسی:\n\n{raw_text}",
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system_prompt=sys_prompt,
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action_name="rewrite_target_post"
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)
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rewritten = res.get("rewritten_text")
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if rewritten:
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return rewritten.strip()
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except Exception as e:
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await log_exception("ai_processor.rewrite", e, {"target_id": target.id, "target_title": target.title})
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# Fallback if AI fails: clean basic @mentions and append footer
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fallback = raw_text
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if footer_text:
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fallback = f"{fallback}\n\n{footer_text}"
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return fallback
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