feat: 生成图片提示词agent结构封装
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57
api/app/agents/image_prompt/orchestrator.py
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57
api/app/agents/image_prompt/orchestrator.py
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"""
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ImagePromptOrchestrator:图片提示词生成编排器。
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根据调用方(封面/正文)选择 build_prompt 或 build_cover_prompt;
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统一异常处理和回退;内部委托 PromptGenerationAgent。
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"""
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from __future__ import annotations
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from typing import Any, Optional
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from app.features.memoir.memoir_images.settings import MemoirImageSettings
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from app.agents.image_prompt.prompt_agent import PromptGenerationAgent
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class ImagePromptOrchestrator:
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"""
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图片提示词编排器。
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区分封面 vs 正文配图,统一调用 PromptGenerationAgent;
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异常与回退由 PromptGenerationAgent(底层 MemoirImagePromptService)处理。
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"""
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def __init__(self, llm: Optional[Any], settings: MemoirImageSettings) -> None:
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self._agent = PromptGenerationAgent(llm=llm, settings=settings)
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def build_prompt(
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self,
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chapter_title: str,
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chapter_category: str,
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description: str,
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context_excerpt: str,
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) -> dict[str, str]:
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"""
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生成正文配图的 prompt。
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委托 PromptGenerationAgent,已含 LLM 调用失败时的 fallback 逻辑。
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"""
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return self._agent.build_prompt(
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chapter_title=chapter_title,
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chapter_category=chapter_category,
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description=description,
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context_excerpt=context_excerpt,
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)
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def build_cover_prompt(
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self,
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chapter_title: str,
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chapter_category: str,
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context_excerpt: str,
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) -> dict[str, str]:
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"""
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生成章节封面的 prompt。
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委托 PromptGenerationAgent,已含 LLM 调用失败时的 fallback 逻辑。
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"""
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return self._agent.build_cover_prompt(
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chapter_title=chapter_title,
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chapter_category=chapter_category,
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context_excerpt=context_excerpt,
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)
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