package service

import (
	"joylink.club/bj-rtsts-server/db/dbquery"
	"joylink.club/bj-rtsts-server/db/model"
	"joylink.club/bj-rtsts-server/dto"
)

// 获取项目的关联关系
func QueryProjectLinkInfo(id int32) *dto.ProjectLinkRspDto {
	pro, proErr := dbquery.Project.Where(dbquery.Project.ID.Eq(id)).First()
	if proErr != nil {
		panic(proErr)
	}
	projectLink := dto.ConvertProjectLink(pro)
	// 关联列车尺寸列表
	projectLink.TrainSizeLinks = dto.ConvertFromTrainSizeDto(QueryProjectTrainSize(id))
	// 关联地图列表
	projectLink.PublishedGiLinks = dto.ConvertFromPublishedGiLink(QueryProjectPublishedGi(id))
	return projectLink
}

// 通过地图ID获取列车尺寸列表
func QueryTrainSizeByMapId(mid int32) []*dto.TrainSizeDto {
	pl, err := dbquery.ProjectPublishLink.Where(dbquery.ProjectPublishLink.Mid.Eq(mid)).First()
	if err != nil {
		panic(dto.ErrorDto{Code: dto.QueryDBError, Message: err.Error()})
	}
	return dto.ConvertFromTrainSizeDto(QueryProjectTrainSize(pl.Pid))
}

// 更新项目关联关系
func UpdateProjectLink(req *dto.ProjectLinkReqDto) {
	// 删除原来信息
	delProjectSizeLink(req.Pid)
	delProjectMapLink(req.Pid)
	// 保存新关联关系
	saveProjectSize(req.Pid, req.Sids)
	saveProjectMapLink(req.Pid, req.Mids)
}

// 删除项目列车尺寸关联关系
func delProjectSizeLink(pid int32) {
	dbquery.ProjectTrainSizeLink.Where(dbquery.ProjectTrainSizeLink.Pid.Eq(pid)).Delete()
}

// 删除项目地图关联关系
func delProjectMapLink(pid int32) {
	dbquery.ProjectPublishLink.Where(dbquery.ProjectPublishLink.Pid.Eq(pid)).Delete()
}

// 保存项目尺寸关联关系
func saveProjectSize(pid int32, sids []*int32) {
	if len(sids) == 0 {
		return
	}
	sizeInfos := make([]*model.ProjectTrainSizeLink, len(sids))
	for i, sid := range sids {
		sizeInfos[i] = &model.ProjectTrainSizeLink{Pid: pid, Sid: *sid}
	}
	dbquery.ProjectTrainSizeLink.Save(sizeInfos...)
}

// 保存项目地图关联关系
func saveProjectMapLink(pid int32, mids []*int32) {
	if len(mids) == 0 {
		return
	}
	mapInfos := make([]*model.ProjectPublishLink, len(mids))
	for i, mid := range mids {
		mapInfos[i] = &model.ProjectPublishLink{Pid: pid, Mid: *mid}
	}
	dbquery.ProjectPublishLink.Save(mapInfos...)
}