package service

import (
	"fmt"
	"time"

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

// 查询权限角色信息列表
func PageAuthRoleQuery(query *dto.PageQueryDto) (*dto.PageDto, error) {
	d := dbquery.AuthRole
	records, total, err := d.Debug().Select(d.ID, d.Name).Order(d.CreateTime).FindByPage(query.Offset(), query.Size)
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	return &dto.PageDto{Total: int(total), PageQueryDto: *query, Records: dto.ConvertFromAuthRole(records)}, nil
}

// 获取角色列表
func ListAuthRoleQuery() []*dto.AuthRoleRspDto {
	d := dbquery.AuthRole
	records, err := d.Debug().Select(d.ID, d.Name).Order(d.CreateTime).Find()
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	return dto.ConvertFromAuthRole(records)
}

// 创建权限角色
func CreateAuthRole(a *dto.AuthRoleReqDto) bool {
	createTime := time.Now()
	d := model.AuthRole{Name: a.Name, CreateTime: createTime}
	aq := dbquery.AuthRole
	err := aq.Save(&d)
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	n := len(a.AddPaths)
	if n > 0 {
		// 查询刚插入的角色
		newAuthRole, _ := aq.Where(aq.Name.Eq(a.Name), aq.CreateTime.Eq(createTime)).First()
		rolePaths := make([]*model.AuthRoleAPIPath, n)
		for i, v := range a.AddPaths {
			rolePaths[i] = &model.AuthRoleAPIPath{Rid: newAuthRole.ID, Pid: v}
		}
		dbquery.AuthRoleAPIPath.Save(rolePaths...)
		return true
	}
	return false
}

// 查询角色详情
func QueryAuthRole(rid int32) *dto.AuthRoleDetailRspDto {
	// 查询用户角色信息
	role, err := dbquery.AuthRole.Where(dbquery.AuthRole.ID.Eq(rid)).First()
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	rsp := &dto.AuthRoleDetailRspDto{Id: role.ID, Name: role.Name}
	// 查询角色与路径关联信息
	linkPids, err2 := dbquery.AuthRoleAPIPath.Distinct(dbquery.AuthRoleAPIPath.Pid).Where(dbquery.AuthRoleAPIPath.Rid.Eq(rid)).Find()
	if err2 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err2.Error()})
	}
	pn := len(linkPids)
	if pn > 0 {
		pids := make([]int32, pn)
		for i, r := range linkPids {
			pids[i] = r.Pid
		}
		apiPaths, err4 := dbquery.AuthAPIPath.Where(dbquery.AuthAPIPath.ID.In(pids...)).Find()
		if err4 != nil {
			panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err4.Error()})
		}
		rsp.Paths = apiPaths
	}
	return rsp
}

// 编辑角色信息
func UpdateAuthRole(rid int32, info *dto.AuthRoleReqDto) bool {
	// 查询用户角色信息
	role, err := dbquery.AuthRole.Where(dbquery.AuthRole.ID.Eq(rid)).First()
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	role.Name = info.Name
	// 更新名称
	dbquery.AuthRole.Updates(role)
	// 删除关联
	dqarap := dbquery.AuthRoleAPIPath
	rn := len(info.DelPaths)
	if rn > 0 {
		dqarap.Where(dqarap.Rid.Eq(rid), dqarap.Pid.In(info.DelPaths...)).Delete()
	}
	// 增加关联
	an := len(info.AddPaths)
	if an > 0 {
		rolePaths := make([]*model.AuthRoleAPIPath, an)
		for i, v := range info.AddPaths {
			rolePaths[i] = &model.AuthRoleAPIPath{Rid: rid, Pid: v}
		}
		dqarap.Save(rolePaths...)
	}
	return true
}

// 删除权限角色
func DeleteAuthRole(rid int32) bool {
	oldD, err1 := dbquery.AuthRole.Where(dbquery.AuthRole.ID.Eq(rid)).First()
	if err1 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err1.Error()})
	}
	if dto.IsSystemRole(oldD.Weight) {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: "系统角色不可删除"})
	}
	// 如果有用户关联则不删除
	count, err2 := dbquery.AuthRoleUser.Where(dbquery.AuthRoleUser.Rid.Eq(rid)).Count()
	if err2 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err2.Error()})
	}
	if count > 0 {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: "有用户关联该角色"})
	}
	// 删除用户关联关系
	dbquery.AuthRoleUser.Where(dbquery.AuthRoleUser.Rid.Eq(rid)).Delete()
	// 删除路径关联关系
	dbquery.AuthRoleAPIPath.Where(dbquery.AuthRoleAPIPath.Rid.Eq(rid)).Delete()
	// 删除角色
	dbquery.AuthRole.Where(dbquery.AuthRole.ID.Eq(rid)).Delete()
	return true
}

// 查询接口路径信息列表
func PageAuthApiPathQuery(query *dto.AuthApiPathPageReqDto) (*dto.PageDto, error) {
	d := dbquery.AuthAPIPath
	dq := d.Where()
	if query.Name != "" {
		dq = dq.Where(d.Name.Like(fmt.Sprintf("%%%s%%", query.Name)))
	}
	records, total, err := dq.Debug().FindByPage(query.Offset(), query.Size)
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	return &dto.PageDto{Total: int(total), PageQueryDto: query.PageQueryDto, Records: records}, nil
}

// 查询接口路径信息列表
func ListAuthApiPathQuery() []*model.AuthAPIPath {
	records, err := dbquery.AuthAPIPath.Find()
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	return records
}

// 创建接口路径信息
func CreateAuthApiPath(ap *dto.AuthApiPathReqDto) bool {
	d := model.AuthAPIPath{Name: ap.Name, Path: ap.Path, Method: ap.Method}
	err := dbquery.AuthAPIPath.Save(&d)
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	return true
}

// 查询接口路径信息
func QueryAuthApiPath(id int32) *model.AuthAPIPath {
	data, err := dbquery.AuthAPIPath.Where(dbquery.AuthAPIPath.ID.Eq(id)).Debug().First()
	if err != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err.Error()})
	}
	return data
}

// 更新接口路径信息
func UpdateAuthApiPath(id int32, a *dto.AuthApiPathReqDto) bool {
	dbqa := dbquery.AuthAPIPath
	oldD, err1 := dbqa.Where(dbqa.ID.Eq(id)).Debug().First()
	if oldD == nil || err1 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err1.Error()})
	}
	oldD.Name = a.Name
	oldD.Path = a.Path
	oldD.Method = a.Method
	_, err2 := dbqa.Updates(oldD)
	if err2 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err2.Error()})
	}
	return true
}

// 删除接口路径信息
func DeleteAuthApiPath(id int32) bool {
	_, err1 := dbquery.AuthAPIPath.Where(dbquery.AuthAPIPath.ID.Eq(id)).First()
	if err1 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err1.Error()})
	}
	// 删除角色中的路径信息
	dbquery.AuthRoleAPIPath.Where(dbquery.AuthRoleAPIPath.Pid.Eq(id)).Delete()
	// 删除接口路径信息
	dbquery.AuthAPIPath.Where(dbquery.AuthAPIPath.ID.Eq(id)).Delete()
	return true
}

// 用户关联角色信息
func UserLinkRole(linkInfo *dto.AuthRoleUserReqDto) bool {
	dbar := dbquery.AuthRoleUser
	// 删除角色关联信息
	_, err1 := dbar.Where(dbar.UID.Eq(linkInfo.Uid), dbar.Rid.In(linkInfo.DelRids...)).Delete()
	if err1 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err1.Error()})
	}
	// 插入关联关系
	n := len(linkInfo.AddRids)
	if n > 0 {
		arul := make([]*model.AuthRoleUser, n)
		for i, l := range linkInfo.AddRids {
			arul[i] = &model.AuthRoleUser{UID: linkInfo.Uid, Rid: l}
		}
		err2 := dbar.Save(arul...)
		if err2 != nil {
			panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err2.Error()})
		}
	}
	return true
}

// 查询用户权限信息
func QueryUserAuthApiPath(uid int32) *dto.AuthUserStorageDto {
	linkRids, err1 := dbquery.AuthRoleUser.Distinct(dbquery.AuthRoleUser.Rid).Where(dbquery.AuthRoleUser.UID.Eq(uid)).Find()
	if err1 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err1.Error()})
	}
	authUser := &dto.AuthUserStorageDto{UID: uid, IsAdmin: false}
	rn := len(linkRids) // 查询用户角色
	roleQuery := dbquery.AuthRole.Where()
	if rn > 0 {
		rids := make([]int32, rn)
		for i, r := range linkRids {
			rids[i] = r.Rid
		}
		authUser.RoleIds = rids // 用户角色ID
		roleQuery = roleQuery.Where(dbquery.AuthRole.ID.In(rids...))
	}
	// 查询用户角色信息
	roles, err2 := roleQuery.Or(dbquery.AuthRole.Weight.Eq(int32(dto.USER))).Find()
	if err2 != nil {
		panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err2.Error()})
	}
	// 判断是否是管理员
	rids := make([]int32, len(roles))
	for i, r := range roles {
		rids[i] = r.ID
		authUser.IsAdmin = authUser.IsAdmin || (r.Weight == int32(dto.ADMIN))
	}
	if !authUser.IsAdmin { // 非管理员时，查询角色权限路径
		// 查询角色与路径关联信息
		linkPids, err3 := dbquery.AuthRoleAPIPath.Distinct(dbquery.AuthRoleAPIPath.Pid).Where(dbquery.AuthRoleAPIPath.Rid.In(rids...)).Find()
		if err3 != nil {
			panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err3.Error()})
		}
		pn := len(linkPids)
		if pn > 0 {
			pids := make([]int32, pn)
			for i, r := range linkPids {
				pids[i] = r.Pid
			}
			apiPaths, err4 := dbquery.AuthAPIPath.Where(dbquery.AuthAPIPath.ID.In(pids...)).Find()
			if err4 != nil {
				panic(dto.ErrorDto{Code: dto.DataOperationError, Message: err4.Error()})
			}
			authUser.AuthPaths = dto.ConvertFromAuthPath(apiPaths) // 赋值路径数组
		}
	}
	return authUser
}