110 lines
3.3 KiB
Python
110 lines
3.3 KiB
Python
"""
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通讯录子图构建器
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Contact Subgraph Builder
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支持 API 注入的工厂模式
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"""
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from langgraph.graph import StateGraph, START, END
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from .state import ContactState
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from .nodes import create_contact_nodes
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def build_contact_subgraph(contact_api=None):
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"""
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构建通讯录子图（工厂模式）
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Args:
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contact_api: 可选的 ContactAPIClient 实例（支持真实数据库或模拟模式）
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不传入则使用默认模拟 API（向后兼容）
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Returns:
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配置好的 StateGraph
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"""
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# 创建节点（传入 API）
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nodes = create_contact_nodes(contact_api) if contact_api else None
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# 如果没有传入 API，使用向后兼容的导入
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if nodes is None:
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from .nodes import (
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parse_intent,
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list_contacts,
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add_contact,
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list_emails,
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generate_email_draft,
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human_review,
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send_email,
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sniff_contacts,
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format_result,
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should_continue
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)
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else:
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parse_intent = nodes["parse_intent"]
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list_contacts = nodes["list_contacts"]
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add_contact = nodes["add_contact"]
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list_emails = nodes["list_emails"]
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generate_email_draft = nodes["generate_email_draft"]
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human_review = nodes["human_review"]
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send_email = nodes["send_email"]
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sniff_contacts = nodes["sniff_contacts"]
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format_result = nodes["format_result"]
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should_continue = nodes["should_continue"]
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# 创建图
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graph = StateGraph(ContactState)
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# 添加节点
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graph.add_node("parse_intent", parse_intent)
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graph.add_node("list_contacts", list_contacts)
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graph.add_node("add_contact", add_contact)
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graph.add_node("list_emails", list_emails)
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graph.add_node("generate_email_draft", generate_email_draft)
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graph.add_node("human_review", human_review)
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graph.add_node("send_email", send_email)
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graph.add_node("sniff_contacts", sniff_contacts)
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graph.add_node("format_result", format_result)
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# 添加边
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# 从START开始
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graph.add_edge(START, "parse_intent")
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# 从parse_intent根据条件路由
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graph.add_conditional_edges(
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"parse_intent",
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should_continue,
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{
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"list_contacts": "list_contacts",
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"add_contact": "add_contact",
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"list_emails": "list_emails",
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"generate_email_draft": "generate_email_draft",
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"sniff_contacts": "sniff_contacts",
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}
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)
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# 从各个操作节点到format_result
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graph.add_edge("list_contacts", "format_result")
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graph.add_edge("add_contact", "format_result")
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graph.add_edge("list_emails", "format_result")
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graph.add_edge("sniff_contacts", "format_result")
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# 邮件发送的特殊流程
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graph.add_edge("generate_email_draft", "human_review")
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# 从human_review根据条件路由
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graph.add_conditional_edges(
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"human_review",
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should_continue,
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{
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"send_email": "send_email",
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"format_result": "format_result",
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}
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)
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# 发送邮件后到格式化
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graph.add_edge("send_email", "format_result")
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# 最终到END
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graph.add_edge("format_result", END)
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return graph
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