package com.sztzjy.linkCommerce.service.impl;

import com.sztzjy.linkCommerce.config.exception.handler.ServiceException;
import com.sztzjy.linkCommerce.config.security.JwtUser;
import com.sztzjy.linkCommerce.entity.StudentTrainingAnswer;
import com.sztzjy.linkCommerce.entity.dto.TargetUserProfileStepFiveValidationRequest;
import com.sztzjy.linkCommerce.entity.dto.TargetUserProfileStepFiveValidationResult;
import com.sztzjy.linkCommerce.service.StudentTrainingAnswerService;
import com.sztzjy.linkCommerce.service.TargetUserProfileStepFiveService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.Set;

@Service
public class TargetUserProfileStepFiveServiceImpl implements TargetUserProfileStepFiveService {
    private static final String TASK_KEY = "target-user-profile";
    private static final int MAX_SEGMENTS = 6;
    private static final Set<String> ATTRACTIVENESS_OPTIONS = new LinkedHashSet<>(Arrays.asList("高", "中", "低"));

    @Autowired
    private StudentTrainingAnswerService studentTrainingAnswerService;

    @Override
    public TargetUserProfileStepFiveValidationResult validate(TargetUserProfileStepFiveValidationRequest request, JwtUser user) {
        if (user == null || StringUtils.isBlank(user.getUserId())) {
            throw new ServiceException(HttpStatus.UNAUTHORIZED, "请先登录后再校验");
        }
        if (user.getRoleId() != 4) {
            throw new ServiceException(HttpStatus.FORBIDDEN, "仅学生可进行实训校验");
        }
        StudentTrainingAnswer savedAnswer = studentTrainingAnswerService.get(TASK_KEY, null, user);
        String savedContent = savedAnswer == null ? "" : savedAnswer.getStep1Answer();
        if (StringUtils.isBlank(savedContent) || !StringUtils.contains(savedContent, "keyUserRecords")
                || !StringUtils.contains(savedContent, "U01") || !StringUtils.contains(savedContent, "U02") || !StringUtils.contains(savedContent, "U03")) {
            throw new ServiceException(HttpStatus.BAD_REQUEST, "请先完成并保存第 4 步重点用户画像");
        }
        if (request == null || request.getSegments() == null || request.getSegments().isEmpty() || request.getSegments().size() > MAX_SEGMENTS) {
            throw new ServiceException(HttpStatus.BAD_REQUEST, "请完成细分市场分析表，最多可填写 6 行");
        }
        for (TargetUserProfileStepFiveValidationRequest.MarketSegment segment : request.getSegments()) {
            if (segment == null || StringUtils.isBlank(segment.getMarket()) || !ATTRACTIVENESS_OPTIONS.contains(StringUtils.trim(segment.getAttractiveness()))
                    || StringUtils.isBlank(segment.getPainPoints()) || StringUtils.isBlank(segment.getBehaviorCharacteristics())
                    || StringUtils.isBlank(segment.getProductOpportunity())) {
                throw new ServiceException(HttpStatus.BAD_REQUEST, "请完整填写每个细分市场的吸引力、需求痛点、行为特征和产品机会");
            }
        }
        if (StringUtils.isBlank(request.getMarketSelection())) {
            throw new ServiceException(HttpStatus.BAD_REQUEST, "请完成市场选择结论");
        }
        TargetUserProfileStepFiveValidationResult result = new TargetUserProfileStepFiveValidationResult();
        result.setValid(true);
        result.setMessage("校验通过");
        return result;
    }
}