import type { MemoryScope } from './memory-manager.js';

export interface SelfLearningMemoryDraft {
  content: string;
  scope: MemoryScope;
}

function compactLine(text: string, max = 220): string {
  const oneLine = String(text || '')
    .replace(/\s+/g, ' ')
    .trim();
  return oneLine.length > max ? `${oneLine.slice(0, max)}...` : oneLine;
}







export function buildSelfLearningMemoryDraft(userMessage: string): SelfLearningMemoryDraft | null {
  const msg = compactLine(userMessage, 260);
  if (!msg) return null;
  const lower = msg.toLowerCase();

  const correction =
    /没改好|没有改好|不对|不太对|还是不行|不合理|很怪|奇怪|不好用|没法比|不够强|应该|以后|记住|记一下/.test(
      msg
    ) ||
    /\b(not right|still broken|doesn'?t work|does not work|not good enough|remember|next time|should|wrong|incorrect|fix this|that'?s not|please don'?t|stop doing|always use|never use|don'?t do|no,?\s+do|that'?s wrong|not what i|not correct)\b/.test(
      lower
    );
  if (!correction) return null;

  const productOrUx =
    /体验|产品|用户|文字|文案|入口|页面|工作台|对话|聊天|记忆|迭代|审批|按钮|折叠|刷新|图片|附件|plan|ux|copy|memory|agent|approval|button|chat|workspace/.test(
      lower
    ) ||
    /体验|产品|用户|文字|文案|入口|页面|工作台|对话|聊天|记忆|迭代|审批|按钮|折叠|刷新|图片|附件/.test(
      msg
    );

  const scope: MemoryScope = productOrUx ? 'user' : 'workspace';
  return {
    scope,
    content:
      `用户反馈/迭代信号: ${msg}\n` +
      '处理原则: 当用户指出没改好、不合理或提出稳定产品偏好时，不要只改表层；继续追查状态来源、入口路径和验证方式，并把可复用结论沉淀为 memory 或 skill。',
  };
}

export interface ImplicitSignalContext {
  consecutiveToolFailures: number;
  userFollowUp: string;
}

export function buildImplicitLearningDraft(
  ctx: ImplicitSignalContext
): SelfLearningMemoryDraft | null {
  if (ctx.consecutiveToolFailures < 3) return null;
  const followUp = compactLine(ctx.userFollowUp, 260);
  if (!followUp) return null;
  return {
    scope: 'workspace',
    content:
      `隐式学习信号 (连续 ${ctx.consecutiveToolFailures} 次工具失败后用户补充): ${followUp}\n` +
      '处理原则: 连续工具失败后用户介入通常意味着方法或环境假设有误；回顾失败链，修正根因并沉淀为 memory。',
  };
}