From 13b76c00abea541b3ceb969ad6e2d273d61e627d Mon Sep 17 00:00:00 2001
From: Zichao Lin <earthjasonlin@163.com>
Date: Sat, 11 Jul 2026 22:17:10 +0800
Subject: [PATCH] feat: add tell me more button for promotion emails with
 AI-generated details

---
 src/ai_client.py | 22 ++++++++++++++++++++++
 src/tg_bot.py    | 35 +++++++++++++++++++++++++++++++++--
 2 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/src/ai_client.py b/src/ai_client.py
index 2dce0fd..ceaa693 100644
--- a/src/ai_client.py
+++ b/src/ai_client.py
@@ -61,6 +61,28 @@ def summarize_email(ai_cfg: AIConfig, recipient: str, subject: str, sender: str,
     return _call_deepseek(ai_cfg, payload)
 
 
+PROMO_DETAIL_PROMPT = """你是一个邮件分析助手。用户想了解更多关于这封推广邮件的详情。
+请根据邮件原文，输出 3-5 条关键信息，每条一句话，简洁明了。包括：优惠力度、适用条件、截止时间、核心卖点等用户做决策需要知道的信息。
+只返回一个 JSON: {"details": ["信息1", "信息2", ...]}
+只返回 JSON，不要包含任何其他文字。"""
+
+
+@retry()
+def expand_promo_detail(ai_cfg: AIConfig, sender: str, subject: str, body: str) -> list[str]:
+    logger.info("AI 推广详情请求: sender=%s subject=%s", sender, subject)
+    content = f"发件人: {sender}\n主题: {subject}\n正文:\n{body[:4000]}"
+    payload = {
+        "model": ai_cfg.model,
+        "messages": [
+            {"role": "system", "content": PROMO_DETAIL_PROMPT},
+            {"role": "user", "content": content},
+        ],
+        "response_format": {"type": "json_object"},
+    }
+    result = _call_deepseek(ai_cfg, payload)
+    return result.get("details", [])
+
+
 MORE_REPLIES_PROMPT = """你是一个邮件回复助手。根据以下邮件内容生成3个完全不同的建议回复。
 
 以下是一些已经生成过的回复，请生成全新的回复，不要与已有回复重复。
diff --git a/src/tg_bot.py b/src/tg_bot.py
index e6e4dcb..b0db106 100644
--- a/src/tg_bot.py
+++ b/src/tg_bot.py
@@ -3,7 +3,7 @@ import logging
 from email.utils import parseaddr
 import requests
 from src.config import TelegramConfig, Config
-from src.ai_client import generate_more_replies
+from src.ai_client import generate_more_replies, expand_promo_detail
 from src.smtp_client import send_reply
 from src.retry import retry
 
@@ -154,11 +154,15 @@ CALLBACK_SELECT_REPLY = "sr"
 CALLBACK_REGEN = "rg"
 CALLBACK_HINT = "h"
 CALLBACK_CANCEL = "c"
+CALLBACK_PROMO_DETAIL = "pd"
 
 
 def _summary_keyboard(can_reply: bool = True, is_promotion: bool = False, links: list = None) -> dict:
     if is_promotion:
-        return {"inline_keyboard": [[{"text": "查看原文", "callback_data": CALLBACK_VIEW_ORIG}]]}
+        return {"inline_keyboard": [
+            [{"text": "告诉我更多", "callback_data": CALLBACK_PROMO_DETAIL}],
+            [{"text": "查看原文", "callback_data": CALLBACK_VIEW_ORIG}],
+        ]}
     kb = [
         [
             {"text": "查看原文", "callback_data": CALLBACK_VIEW_ORIG},
@@ -360,6 +364,33 @@ def _handle_callback(tg_cfg: TelegramConfig, cfg: Config, cb: dict):
             delete_message(tg_cfg, str(chat_id), msg_id)
             logger.info("  取消, 删除提示消息")
 
+    elif action == CALLBACK_PROMO_DETAIL and ctx:
+        try:
+            details = expand_promo_detail(
+                cfg.ai, ctx["sender"], ctx["subject"], ctx["original_body"],
+            )
+        except Exception as e:
+            send_text(tg_cfg, str(chat_id), f"获取详情失败: {e}")
+            return
+        summary = ctx["summary_data"].get("summary", "")
+        detail_lines = "\n".join(f"\\- {_escape(d)}" for d in details) if details else "暂无更多详情"
+        expanded = (
+            f"📢 *推广*\n"
+            f"━━━━━━━━━━━━━━━━━━\n"
+            f"*收件账户:* {_escape(ctx.get('account_email', ''))}\n"
+            f"\n{_escape(summary)}\n"
+            f"\n*📋 详情:*\n{detail_lines}"
+        )
+        _tg_req(tg_cfg, "editMessageText", {
+            "chat_id": chat_id, "message_id": msg_id,
+            "text": expanded, "parse_mode": "MarkdownV2",
+            "reply_markup": {"inline_keyboard": [
+                [{"text": "收起", "callback_data": CALLBACK_VIEW_SUMM}],
+                [{"text": "查看原文", "callback_data": CALLBACK_VIEW_ORIG}],
+            ]},
+        })
+        logger.info("  显示推广详情")
+
 
 def _handle_message(tg_cfg: TelegramConfig, cfg: Config, msg: dict):
     chat_id = msg["chat"]["id"]