package com.tourguide.modules.guide.service;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.tourguide.modules.guide.dto.GuideWorkbenchResponse;
import com.tourguide.modules.operation.dto.PlatformSettingsResponse;
import com.tourguide.modules.operation.service.PlatformSettingsService;
import com.tourguide.modules.order.dto.GuideTodayStatsResponse;
import com.tourguide.modules.order.mapper.TourOrderMapper;
import com.tourguide.modules.system.service.GuideNotificationService;
import com.tourguide.modules.user.dto.GuideUserResponse;
import com.tourguide.modules.user.entity.GuideApplication;
import com.tourguide.modules.user.entity.GuideUser;
import com.tourguide.modules.user.mapper.GuideApplicationMapper;
import com.tourguide.modules.user.service.GuideUserService;
import org.springframework.stereotype.Service;

@Service
public class GuideWorkbenchService {
    private final GuideUserService guideUserService;
    private final GuideApplicationMapper applicationMapper;
    private final TourOrderMapper orderMapper;
    private final GuideNotificationService notificationService;
    private final PlatformSettingsService settingsService;

    public GuideWorkbenchService(GuideUserService guideUserService,
                                 GuideApplicationMapper applicationMapper,
                                 TourOrderMapper orderMapper,
                                 GuideNotificationService notificationService,
                                 PlatformSettingsService settingsService) {
        this.guideUserService = guideUserService;
        this.applicationMapper = applicationMapper;
        this.orderMapper = orderMapper;
        this.notificationService = notificationService;
        this.settingsService = settingsService;
    }

    public GuideWorkbenchResponse get(Long guideId) {
        GuideUser guide = guideUserService.findById(guideId);
        GuideTodayStatsResponse stats = orderMapper.selectGuideTodayStats(guideId);
        if (stats == null) stats = new GuideTodayStatsResponse();
        GuideApplication application = latestApplication(guide);
        PlatformSettingsResponse settings = settingsService.getSettings();
        return new GuideWorkbenchResponse(
                stats.getTodayOrderCount(),
                stats.getTodayPeopleCount(),
                notificationService.unreadCount(guideId),
                resolveAccountState(guide, application),
                application == null ? null : application.getAuditRemark(),
                settings.getCustomerServiceWechat(),
                settings.getCustomerServicePhone(),
                GuideUserResponse.from(guide));
    }

    private GuideApplication latestApplication(GuideUser guide) {
        if (guide.getMobile() == null || guide.getMobile().trim().isEmpty()) return null;
        return applicationMapper.selectOne(new LambdaQueryWrapper<GuideApplication>()
                .eq(GuideApplication::getMobile, guide.getMobile())
                .orderByDesc(GuideApplication::getCreatedAt)
                .last("LIMIT 1"));
    }

    private String resolveAccountState(GuideUser guide, GuideApplication application) {
        if (guide.getStatus() == null || guide.getStatus() == 0) return "disabled";
        if (application == null || application.getAuditStatus() == null || application.getAuditStatus() == 1) {
            return "approved";
        }
        if (application.getAuditStatus() == 2) return "rejected";
        return "pending";
    }
}