- Phase1/2:移除 MemoirOrchestrator.run 与 process_memoir_segments 别名;文档改为 process_memoir_phase1。 - 槽位校验集中到 stage_constants(filter_stage_slots),批处理与顺序路径及 state_service 写库一致。 - StoryRoute:no_llm/parse_error/invalid_target 保守 new_story;短篇护栏不覆盖这些 fallback。 - Phase2 低置信单路径可选延迟(StoryPipelineResult.deferred):不写 Chapter/Story,Segment 记录 defer 元数据,冷却内不重复消费;上限后停自动重试,Phase1 同类目新段唤醒池内段。 - Alembic 0017:segments 表 narrative_defer_* 列。 - ProfileAgent:经 LlmGateway/注入 Provider 统一聊天与 JSON,新增测试。 - ImagePromptOrchestrator:LLM 初始化失败可依配置降级或硬失败;补充策略测试。 - 配套单测与 README/本地开发文档表述更新。 Co-authored-by: Cursor <cursoragent@cursor.com>
95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
"""
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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.agents.image_prompt.prompt_agent import PromptGenerationAgent
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from app.core.config import settings
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from app.core.logging import get_logger
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from app.features.memoir.memoir_images.settings import MemoirImageSettings
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logger = get_logger(__name__)
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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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def build_story_primary_prompt(
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self,
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story_title: str,
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story_stage: str | None,
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prompt_brief: str,
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style_profile: str | None,
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) -> dict[str, str]:
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"""生成 story 主插图的 prompt。"""
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return self._agent.build_story_primary_prompt(
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story_title=story_title,
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story_stage=story_stage,
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prompt_brief=prompt_brief,
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style_profile=style_profile,
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)
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def get_image_prompt_orchestrator() -> ImagePromptOrchestrator:
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"""Celery / 后台任务入口:统一装配 LLM 与 MemoirImageSettings。"""
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from app.core.llm_gateway import LlmGateway, LlmUseCase
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image_settings = MemoirImageSettings.from_env()
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try:
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llm = LlmGateway().langchain_llm_for(LlmUseCase("image_prompt"))
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except Exception as e:
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if settings.image_prompt_fallback_disabled:
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raise
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logger.warning(
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"ImagePromptOrchestrator LLM 初始化失败,使用确定性 fallback: {}",
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e,
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)
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llm = None
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return ImagePromptOrchestrator(llm=llm, settings=image_settings)
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