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members.go
221 lines (189 loc) · 5.35 KB
/
members.go
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package sqlite
import (
"context"
"database/sql"
"fmt"
"github.com/friendsofgo/errors"
"github.com/mattn/go-sqlite3"
"github.com/ssb-ngi-pointer/go-ssb-room/roomdb"
"github.com/ssb-ngi-pointer/go-ssb-room/roomdb/sqlite/models"
"github.com/volatiletech/sqlboiler/v4/boil"
"github.com/volatiletech/sqlboiler/v4/queries/qm"
refs "go.mindeco.de/ssb-refs"
)
// compiler assertion to ensure the struct fullfills the interface
var _ roomdb.MembersService = (*Members)(nil)
type Members struct {
db *sql.DB
}
// getAliases returns the JOIN-ed aliases for a member as a the wanted roomdb type.
func (Members) getAliases(mEntry *models.Member) []roomdb.Alias {
if mEntry.R == nil || mEntry.R.Aliases == nil {
return make([]roomdb.Alias, 0)
}
var aliases = make([]roomdb.Alias, len(mEntry.R.Aliases))
for j, aEntry := range mEntry.R.Aliases {
aliases[j].ID = aEntry.ID
aliases[j].Feed = mEntry.PubKey.FeedRef
aliases[j].Name = aEntry.Name
aliases[j].Signature = aEntry.Signature
}
return aliases
}
func (m Members) Add(ctx context.Context, pubKey refs.FeedRef, role roomdb.Role) (int64, error) {
var newID int64
err := transact(m.db, func(tx *sql.Tx) error {
var err error
newID, err = m.add(ctx, tx, pubKey, role)
return err
})
if err != nil {
return -1, err
}
return newID, nil
}
// no receiver name because it needs to use the passed transaction
func (Members) add(ctx context.Context, tx *sql.Tx, pubKey refs.FeedRef, role roomdb.Role) (int64, error) {
if err := role.IsValid(); err != nil {
return -1, err
}
if _, err := refs.ParseFeedRef(pubKey.Ref()); err != nil {
return -1, err
}
var newMember models.Member
newMember.PubKey = roomdb.DBFeedRef{FeedRef: pubKey}
newMember.Role = int64(role)
err := newMember.Insert(ctx, tx, boil.Infer())
if err != nil {
var sqlErr sqlite3.Error
if errors.As(err, &sqlErr) && sqlErr.ExtendedCode == sqlite3.ErrConstraintUnique {
return -1, roomdb.ErrAlreadyAdded{Ref: pubKey}
}
return -1, fmt.Errorf("members: failed to insert new user: %w", err)
}
return newMember.ID, nil
}
func (m Members) GetByID(ctx context.Context, mid int64) (roomdb.Member, error) {
entry, err := models.FindMember(ctx, m.db, mid)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return roomdb.Member{}, roomdb.ErrNotFound
}
return roomdb.Member{}, err
}
// resolve alias relation
entry.R = entry.R.NewStruct()
entry.R.Aliases, err = entry.Aliases().All(ctx, m.db)
if err != nil {
return roomdb.Member{}, err
}
return roomdb.Member{
ID: entry.ID,
Role: roomdb.Role(entry.Role),
PubKey: entry.PubKey.FeedRef,
Aliases: m.getAliases(entry),
}, nil
}
// GetByFeed returns the member if it exists
func (m Members) GetByFeed(ctx context.Context, h refs.FeedRef) (roomdb.Member, error) {
entry, err := models.Members(qm.Where("pub_key = ?", h.Ref())).One(ctx, m.db)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return roomdb.Member{}, roomdb.ErrNotFound
}
return roomdb.Member{}, err
}
// resolve alias relation
entry.R = entry.R.NewStruct()
entry.R.Aliases, err = entry.Aliases().All(ctx, m.db)
if err != nil {
return roomdb.Member{}, err
}
return roomdb.Member{
ID: entry.ID,
Role: roomdb.Role(entry.Role),
PubKey: entry.PubKey.FeedRef,
Aliases: m.getAliases(entry),
}, nil
}
// List returns a list of all the feeds.
func (m Members) List(ctx context.Context) ([]roomdb.Member, error) {
all, err := models.Members(qm.Load("Aliases")).All(ctx, m.db)
if err != nil {
return nil, err
}
var members = make([]roomdb.Member, len(all))
for i, entry := range all {
members[i].ID = entry.ID
members[i].Role = roomdb.Role(entry.Role)
members[i].PubKey = entry.PubKey.FeedRef
members[i].Aliases = m.getAliases(entry)
}
return members, nil
}
func (m Members) Count(ctx context.Context) (uint, error) {
count, err := models.Members().Count(ctx, m.db)
if err != nil {
return 0, err
}
return uint(count), nil
}
// RemoveFeed removes the feed from the list.
func (m Members) RemoveFeed(ctx context.Context, r refs.FeedRef) error {
entry, err := models.Members(qm.Where("pub_key = ?", r.Ref())).One(ctx, m.db)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return roomdb.ErrNotFound
}
return err
}
_, err = entry.Delete(ctx, m.db)
if err != nil {
return err
}
return nil
}
// RemoveID removes the feed from the list.
func (m Members) RemoveID(ctx context.Context, id int64) error {
entry, err := models.FindMember(ctx, m.db, id)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return roomdb.ErrNotFound
}
return err
}
_, err = entry.Delete(ctx, m.db)
if err != nil {
return err
}
return nil
}
// SetRole updates the role r of the passed memberID.
func (m Members) SetRole(ctx context.Context, id int64, r roomdb.Role) error {
if err := r.IsValid(); err != nil {
return err
}
return transact(m.db, func(tx *sql.Tx) error {
m, err := models.FindMember(ctx, tx, id)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return roomdb.ErrNotFound
}
return err
}
// find the number of other admins
admins, err := models.Members(
qm.Where("id != ?", id),
qm.Where("role = ?", roomdb.RoleAdmin),
).Count(ctx, tx)
if err != nil {
return err
}
if admins < 1 {
return fmt.Errorf("need at least one other admin")
}
m.Role = int64(r)
_, err = m.Update(ctx, tx, boil.Whitelist("role"))
return err
})
}