package domain

import (
	"admin/apps/game/domain/entity"
	"admin/apps/game/domain/repo"
	"admin/apps/game/model/dto"
	"admin/internal/errcode"
	"admin/lib/cdkey"
	"gorm.io/gorm"
	"time"
)

type CDKeyService struct {
	repo repo.ICDKeyRepo
}

func NewCDKeyService(db *gorm.DB) *CDKeyService {
	return &CDKeyService{repo: repo.NewCDKeyRepo(db)}
}

func (svc *CDKeyService) AddCount(projectId, id int, delta int) (int, error) {
	et, err := svc.repo.AddCount(projectId, id, delta)
	if err != nil {
		return 0, err
	}
	return et.GetCount(), nil
}

func (svc *CDKeyService) Get(projectId, id int) (*entity.CDKey, bool, error) {
	return svc.repo.GetByID(projectId, id)
}

func (svc *CDKeyService) CDKeyUse(params *dto.CDKeyUseReq) (*entity.CDKey, error) {
	var cdkeyEt *entity.CDKey
	var find bool
	var err error
	cdkeyInfo, ok := cdkey.DecodeCDKey(params.Key)
	if !ok {
		// 可能是通用码，通过数据库查询通用码
		cdkeyEt, find, err = svc.repo.GetByKey(params.ProjectId, params.Key)
	} else {
		cdkeyEt, find, err = svc.repo.GetByID(params.ProjectId, cdkeyInfo.Batch)
	}
	if err != nil {
		return nil, err
	}
	if !find {
		return nil, errcode.New(errcode.ParamsInvalid, "not found project:%v cdkey info by key:%v", params.ProjectId, params.Key)
	}

	// 校验区服、时间
	if err = cdkeyEt.CheckCanUse(params.ServerID); err != nil {
		return nil, err
	}

	// 校验是否使用过
	usedInfo, find, err := svc.repo.GetUsedHistory(cdkeyEt, params.Key, params.ServerID, params.RoleID)
	if err != nil {
		return nil, err
	}
	if find {
		// 只要使用过同一批的就没法再用
		return nil, errcode.New(errcode.CDKeyAlreadyUsed, "already used %v in %v", usedInfo.Key, usedInfo.CreatedAt.Format(time.DateTime))
	}

	err = svc.repo.RecordUse(cdkeyEt, params)
	if err != nil {
		return nil, err
	}

	return cdkeyEt, nil
}

func (svc *CDKeyService) GetUsedHistoryList(projectId int, cdKeyID int) ([]*dto.CDKeyUsedInfo, error) {
	list, err := svc.repo.GetUsedHistoryList(projectId, cdKeyID)
	return list, err
}