package com.company.agentfoundation.semantic.handler;

import com.company.agentfoundation.semantic.SemanticDateRangeResolver;
import com.company.agentfoundation.semantic.SemanticIntentHandler;
import com.company.agentfoundation.semantic.SemanticRecognition;
import com.company.agentfoundation.semantic.SemanticRequestContext;
import com.company.agentfoundation.teaching.report.LowHoursWarningPushService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ResponseStatusException;

@Component
public class FrequentAbsenceWarningPushIntentHandler implements SemanticIntentHandler {
  private static final Logger log = LoggerFactory.getLogger(FrequentAbsenceWarningPushIntentHandler.class);
  private final LowHoursWarningPushService service;
  private final SemanticDateRangeResolver dateRangeResolver;

  public FrequentAbsenceWarningPushIntentHandler(
      LowHoursWarningPushService service,
      SemanticDateRangeResolver dateRangeResolver
  ) {
    this.service = service;
    this.dateRangeResolver = dateRangeResolver;
  }

  @Override public String intent() { return "PUSH_FREQUENT_ABSENCE_WARNING"; }
  @Override public String description() { return "生成排课3次以上且缺勤2次以上的高频缺勤名单，并推送给场馆馆长"; }
  @Override public String example() { return "推送本月高频缺勤名单"; }

  @Override
  public String handle(SemanticRequestContext context, SemanticRecognition recognition) {
    SemanticDateRangeResolver.DateRange range = dateRangeResolver.resolve(context, recognition);
    try {
      LowHoursWarningPushService.PushSummary result = service.push(
          context.wecomUserId(), range.startDate(), range.endDate(), false, true);
      return "### ✅ 高频缺勤名单推送完成\n"
          + "> 日期：**" + range.startDate()
          + (range.startDate().equals(range.endDate()) ? "" : " 至 " + range.endDate()) + "**\n"
          + "> 范围：**" + result.scopeLabel() + "**\n\n"
          + "高频缺勤：<font color=\"warning\">" + result.frequentAbsenceStudentCount() + "人</font>"
          + "　|　匹配馆长：" + result.managerCount() + "人"
          + "　|　成功消息：" + result.sentMessageCount() + "条"
          + "\n\n未匹配馆长的学员：" + result.unmatchedStudentCount() + "人"
          + "　|　发送失败馆长：" + result.failedManagerCount() + "人";
    } catch (ResponseStatusException exception) {
      if (exception.getStatusCode().value() == 403) {
        return exception.getReason() == null ? "无权限执行高频缺勤名单推送" : exception.getReason();
      }
      throw exception;
    } catch (Exception exception) {
      log.error("frequent absence warning push failed wecomUserId={} err={}",
          context.wecomUserId(), exception.getMessage(), exception);
      return "高频缺勤名单推送失败，请稍后重试。";
    }
  }
}