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models.go
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models.go
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package types
import (
"fmt"
"strconv"
"strings"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// ParseSubspaceID parses the given value as a subspace id, returning an error if it's invalid
func ParseSubspaceID(value string) (uint64, error) {
if value == "" {
return 0, nil
}
subspaceID, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return 0, fmt.Errorf("invalid subspace id: %s", err)
}
return subspaceID, nil
}
// ParseSubspacesIDs parses the given value as a list of subspace ids separated by a comma
func ParseSubspacesIDs(value string) (ids []uint64, err error) {
for _, value := range strings.Split(value, ",") {
id, err := ParseSubspaceID(value)
if err != nil {
return nil, err
}
ids = append(ids, id)
}
return ids, nil
}
// NewSubspace is a constructor for the Subspace type
func NewSubspace(subspaceID uint64, name, description, treasury, owner, creator string, creationTime time.Time) Subspace {
return Subspace{
ID: subspaceID,
Name: name,
Description: description,
Treasury: treasury,
Owner: owner,
Creator: creator,
CreationTime: creationTime,
}
}
// Validate implements fmt.Validator
func (sub Subspace) Validate() error {
if sub.ID == 0 {
return fmt.Errorf("invalid subspace id: %d", sub.ID)
}
if strings.TrimSpace(sub.Name) == "" {
return fmt.Errorf("subspace name cannot be empty or blank")
}
if sub.Treasury != "" {
_, err := sdk.AccAddressFromBech32(sub.Treasury)
if err != nil {
return fmt.Errorf("invalid treasury address: %s", sub.Treasury)
}
}
_, err := sdk.AccAddressFromBech32(sub.Owner)
if err != nil {
return fmt.Errorf("invalid owner address: %s", sub.Owner)
}
_, err = sdk.AccAddressFromBech32(sub.Creator)
if err != nil {
return fmt.Errorf("invalid creator address: %s", sub.Creator)
}
if sub.CreationTime.IsZero() {
return fmt.Errorf("invalid subspace creation time: %s", sub.CreationTime)
}
return nil
}
// Update updates the fields of a given subspace without validating it.
// Before storing the updated subspace, a validation with Validate() should
// be performed.
func (sub Subspace) Update(update SubspaceUpdate) Subspace {
if update.Name == DoNotModify {
update.Name = sub.Name
}
if update.Description == DoNotModify {
update.Description = sub.Description
}
if update.Treasury == DoNotModify {
update.Treasury = sub.Treasury
}
if update.Owner == DoNotModify {
update.Owner = sub.Owner
}
return NewSubspace(
sub.ID,
update.Name,
update.Description,
update.Treasury,
update.Owner,
sub.Creator,
sub.CreationTime,
)
}
// SubspaceUpdate contains all the data that can be updated about a subspace.
// When performing an update, if a field should not be edited then it must be set to types.DoNotModify
type SubspaceUpdate struct {
Name string
Description string
Treasury string
Owner string
}
// NewSubspaceUpdate builds a new SubspaceUpdate instance containing the given data
func NewSubspaceUpdate(name, description, treasury, owner string) SubspaceUpdate {
return SubspaceUpdate{
Name: name,
Description: description,
Treasury: treasury,
Owner: owner,
}
}
// --------------------------------------------------------------------------------------------------------------------
const (
// RootSectionID represents the id of the root section of each subspace
RootSectionID = 0
)
// ParseSectionID parses the given value as a section id, returning an error if it's invalid
func ParseSectionID(value string) (uint32, error) {
if value == "" {
return 0, nil
}
sectionID, err := strconv.ParseUint(value, 10, 32)
if err != nil {
return 0, fmt.Errorf("invalid group id: %s", err)
}
return uint32(sectionID), nil
}
// NewSection returns a new Section instance
func NewSection(subspaceID uint64, id uint32, parentID uint32, name string, description string) Section {
return Section{
SubspaceID: subspaceID,
ID: id,
ParentID: parentID,
Name: name,
Description: description,
}
}
// DefaultSection returns the default section for the given subspace
func DefaultSection(subspaceID uint64) Section {
return NewSection(
subspaceID,
RootSectionID,
RootSectionID,
"Default section",
"This is the default subspace section",
)
}
// Validate implements fmt.Validator
func (s Section) Validate() error {
if s.SubspaceID == 0 {
return fmt.Errorf("invalid subspace id: %d", s.SubspaceID)
}
if s.ID != RootSectionID && s.ParentID == s.ID {
return fmt.Errorf("invalid parent id: %d", s.ParentID)
}
if strings.TrimSpace(s.Name) == "" {
return fmt.Errorf("invalid section name: %s", s.Name)
}
return nil
}
// Update updates the fields of a given section without validating it.
// Before storing the updated section, a validation with Validate() should
// be performed.
func (s Section) Update(update SectionUpdate) Section {
if update.Name == DoNotModify {
update.Name = s.Name
}
if update.Description == DoNotModify {
update.Description = s.Description
}
return NewSection(
s.SubspaceID,
s.ID,
s.ParentID,
update.Name,
update.Description,
)
}
// SectionUpdate contains all the data that can be updated about a section.
// When performing an update, if a field should not be edited then it must be set to types.DoNotModify
type SectionUpdate struct {
Name string
Description string
}
// NewSectionUpdate returns a new SectionUpdate instance
func NewSectionUpdate(name string, description string) SectionUpdate {
return SectionUpdate{
Name: name,
Description: description,
}
}
// --------------------------------------------------------------------------------------------------------------------
// ParseGroupID parses the given value as a group id, returning an error if it's invalid
func ParseGroupID(value string) (uint32, error) {
if value == "" {
return 0, nil
}
groupID, err := strconv.ParseUint(value, 10, 32)
if err != nil {
return 0, fmt.Errorf("invalid group id: %s", err)
}
return uint32(groupID), nil
}
// NewUserGroup returns a new UserGroup instance
func NewUserGroup(subspaceID uint64, sectionID uint32, id uint32, name, description string, permissions Permissions) UserGroup {
return UserGroup{
SubspaceID: subspaceID,
SectionID: sectionID,
ID: id,
Name: name,
Description: description,
Permissions: permissions,
}
}
// DefaultUserGroup returns the default user group for the given subspace
func DefaultUserGroup(subspaceID uint64) UserGroup {
return NewUserGroup(
subspaceID,
0,
0,
"Default",
"This is a default user group which all users are automatically part of",
nil,
)
}
// Validate implements fmt.Validator
func (group UserGroup) Validate() error {
if group.SubspaceID == 0 {
return fmt.Errorf("invalid subspace id: %d", group.SubspaceID)
}
if strings.TrimSpace(group.Name) == "" {
return fmt.Errorf("invalid group name: %s", group.Name)
}
return nil
}
// Update updates the fields of a given group without validating it.
// Before storing the updated group, a validation with Validate() should
// be performed.
func (group UserGroup) Update(update GroupUpdate) UserGroup {
if update.Name == DoNotModify {
update.Name = group.Name
}
if update.Description == DoNotModify {
update.Description = group.Description
}
return NewUserGroup(
group.SubspaceID,
group.SectionID,
group.ID,
update.Name,
update.Description,
group.Permissions,
)
}
// GroupUpdate contains all the data that can be updated about a group.
// When performing an update, if a field should not be edited then it must be set to types.DoNotModify
type GroupUpdate struct {
Name string
Description string
}
// NewGroupUpdate builds a new SubspaceUpdate instance containing the given data
func NewGroupUpdate(name, description string) GroupUpdate {
return GroupUpdate{
Name: name,
Description: description,
}
}
// -------------------------------------------------------------------------------------------------------------------
// NewUserPermission returns a new UserPermission instance
func NewUserPermission(subspaceID uint64, sectionID uint32, user string, permissions Permissions) UserPermission {
return UserPermission{
SubspaceID: subspaceID,
SectionID: sectionID,
User: user,
Permissions: permissions,
}
}
// Validate implements fmt.Validator
func (p UserPermission) Validate() error {
if p.SubspaceID == 0 {
return fmt.Errorf("invalid subspace id: %d", p.SubspaceID)
}
if !ArePermissionsValid(p.Permissions) {
return fmt.Errorf("invalid permissions: %s", p.Permissions)
}
_, err := sdk.AccAddressFromBech32(p.User)
if err != nil {
return fmt.Errorf("invalid user address: %s", err)
}
return nil
}