package daily_profit

import (
	"app/commons/core"
	"app/commons/model/entity"
	"app/commons/services"
	"app/commons/utils"
	"errors"
	"fmt"
	"gorm.io/gorm"
)

type Service struct {
	//job *entity.SysJob
	services.CommonService
}

func NewService() *Service {
	return &Service{}
}

// 每日收益任务
// nextDay 是否启动下一日任务

func (s *Service) RunDailyProfitJob(nextDay bool) error {
	var err error
	// 预创建每日任务
	err = s.PreCreationDailyJob()
	if err != nil {
		return err
	}
	dailyJob, err := s.getNextRunDailyJob()
	if err != nil {
		return err
	}
	if dailyJob.JobDate != utils.Today20060102Format() && !nextDay {
		return fmt.Errorf("当前待发放奖励日期:%s 当日:%s 启动失败", dailyJob.JobDate, utils.Today20060102Format())
	}

	// 记录任务状态
	defer func() {
		state := entity.JobFinish
		msg := "每日任务完成"
		if err != nil {
			state = entity.JobFail
			msg = err.Error()
		}
		if err = s.updateJobStateAndDesc(dailyJob, state, msg); err != nil {
			core.JobLog.Errorf(err.Error())
		}
	}()
	if err = s.updateJobStateAndDesc(dailyJob, entity.JobRunning, fmt.Sprintf("天任务开启")); err != nil {
		return err
	}
	// 1 节点收益计算
	if err = s.nodeProfitCal(dailyJob.JobDate); err != nil {
		return err
	}
	// 2 团队业绩排行收益计算
	if err = s.achievementRankingProfitCal(dailyJob.JobDate); err != nil {
		return err
	}
	// 3 个人质押排行收益计算
	if err = s.stakeRankingProfitCal(dailyJob.JobDate); err != nil {
		return err
	}
	return nil
}

// 更新任务状态

func (s *Service) updateJobStateAndDesc(job *entity.SysJob, state, errMsg string) error {
	errMsg = fmt.Sprintf("%s:%s", errMsg, utils.NowTimeSecStr())
	if job.Desc != "" {
		errMsg = fmt.Sprintf("%s\n%s", job.Desc, errMsg)
	}
	return s.DB().Model(&entity.SysJob{}).
		Where("id", job.Id).
		Updates(map[string]interface{}{
			"state": state,
			"desc":  errMsg,
		}).Error
}

// 获取当前任务

func (s *Service) getNextRunDailyJob() (*entity.SysJob, error) {
	// 等待状态任务
	firstWaiting, err := s.FirstSysJob(s.DB().Where("state = ?", entity.JobWaiting))
	if err != nil {
		return nil, err
	}
	// 非等待状态任务
	runningOrSuccessOrFailRow, err := s.FirstSysJob(s.DB().Where("state != ?", entity.JobWaiting))
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return firstWaiting, nil
		}
		return nil, err
	}
	if runningOrSuccessOrFailRow.State == entity.JobFinish {
		return firstWaiting, nil
	}
	if runningOrSuccessOrFailRow.State == entity.JobRunning {
		return nil, fmt.Errorf("存在运行中天任务:%s", runningOrSuccessOrFailRow.JobDate)
	}
	if runningOrSuccessOrFailRow.State == entity.JobFail {
		return nil, fmt.Errorf("存在运行错误天任务:%s,必须处理错误后才可以正常运行", runningOrSuccessOrFailRow.JobDate)
	}
	return nil, fmt.Errorf("天任务:%s,未知状态错误", runningOrSuccessOrFailRow.JobDate)
}

// 预创建3个 每日任务

func (s *Service) PreCreationDailyJob() error {
	var err error
	firstWaitingJob, err := s.FirstSysJob(s.DB().Where("state", entity.JobWaiting))
	if err != nil {
		// 当不存在等待中 创建一条当日任务
		if errors.Is(err, gorm.ErrRecordNotFound) {
			firstWaitingJob, err = s.newDailyJob(utils.Today20060102Format())
			if err != nil {
				return err
			}
		} else {
			return err
		}
	}
	lastJob, err := s.LastSysJob(s.DB().Where("state", entity.JobWaiting))
	if err != nil {
		return err
	}
	// 计算两天 日期跨度
	n, err := utils.CalculateApartDays(firstWaitingJob.JobDate, lastJob.JobDate)
	if err != nil {
		return err
	}
	// 保持三天任务
	if n < 3 {
		// 目标期
		targetDay, err := utils.ChangeDay(firstWaitingJob.JobDate, 3)
		if err != nil {
			return err
		}
		nowDate := lastJob.JobDate
		for {
			nextDate, err := utils.NextPeriodNo(nowDate)
			if err != nil {
				return err
			}
			if _, err = s.newDailyJob(nextDate); err != nil {
				return err
			}
			if nextDate >= targetDay {
				break
			}
			nowDate = nextDate
		}
	}
	return err
}

// 每日任务初始化

func (s *Service) createJob(nextJob bool) (*entity.SysJob, error) {
	lastJob, err := s.LastSysJob(s.DB())
	if err != nil {
		// 初始化一条记录 当日任务 并返回
		return s.newDailyJob(utils.TimeDate())
	}
	if lastJob.State != entity.JobFinish {
		return nil, fmt.Errorf("%s任务:%s", lastJob.JobDate, entity.JobStateNameById(lastJob.State))
	}
	// 启动下一日任务 -- 用于测试
	if nextJob {
		nextDate, err := utils.AfterOneDay(lastJob.JobDate)
		if err != nil {
			return s.newDailyJob(utils.TimeDate())
		}
		return s.newDailyJob(nextDate)
	} else {
		if lastJob.JobDate == utils.TimeDate() {
			return nil, fmt.Errorf("%s任务:%s", lastJob.JobDate, entity.JobStateNameById(lastJob.State))
		}
		// 创建当日任务
	}
	return s.newDailyJob(utils.TimeDate())
}

func (s *Service) newDailyJob(date string) (*entity.SysJob, error) {
	newJob := &entity.SysJob{
		JobDate: date,
		State:   entity.JobWaiting,
		Desc:    "",
	}
	if err := s.DB().Create(&newJob).Error; err != nil {
		return nil, err
	}
	return newJob, nil
}