122 lines
3.6 KiB
Go
122 lines
3.6 KiB
Go
package db
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"emperror.dev/errors"
|
|
"github.com/georgysavva/scany/pgxscan"
|
|
"github.com/jackc/pgx/v4"
|
|
"github.com/rs/xid"
|
|
)
|
|
|
|
const (
|
|
MaxFields = 25
|
|
FieldNameMaxLength = 100
|
|
FieldEntriesLimit = 100
|
|
FieldEntryMaxLength = 50
|
|
)
|
|
|
|
type Field struct {
|
|
ID int64 `json:"-"`
|
|
Name string `json:"name"`
|
|
Favourite []string `json:"favourite"`
|
|
Okay []string `json:"okay"`
|
|
Jokingly []string `json:"jokingly"`
|
|
FriendsOnly []string `json:"friends_only"`
|
|
Avoid []string `json:"avoid"`
|
|
}
|
|
|
|
// Validate validates this field. If it is invalid, a non-empty string is returned as error message.
|
|
func (f Field) Validate() string {
|
|
if f.Name == "" {
|
|
return "name cannot be empty"
|
|
}
|
|
|
|
if length := len([]rune(f.Name)); length > FieldNameMaxLength {
|
|
return fmt.Sprintf("name max length is %d characters, length is %d", FieldNameMaxLength, length)
|
|
}
|
|
|
|
if length := len(f.Favourite) + len(f.Okay) + len(f.Jokingly) + len(f.FriendsOnly) + len(f.Avoid); length > FieldEntriesLimit {
|
|
return fmt.Sprintf("max number of entries is %d, current number is %d", FieldEntriesLimit, length)
|
|
}
|
|
|
|
for i, entry := range f.Favourite {
|
|
if length := len([]rune(entry)); length > FieldEntryMaxLength {
|
|
return fmt.Sprintf("favourite.%d: name max length is %d characters, length is %d", i, FieldEntryMaxLength, length)
|
|
}
|
|
}
|
|
|
|
for i, entry := range f.Okay {
|
|
if length := len([]rune(entry)); length > FieldEntryMaxLength {
|
|
return fmt.Sprintf("okay.%d: name max length is %d characters, length is %d", i, FieldEntryMaxLength, length)
|
|
}
|
|
}
|
|
|
|
for i, entry := range f.Jokingly {
|
|
if length := len([]rune(entry)); length > FieldEntryMaxLength {
|
|
return fmt.Sprintf("jokingly.%d: name max length is %d characters, length is %d", i, FieldEntryMaxLength, length)
|
|
}
|
|
}
|
|
|
|
for i, entry := range f.FriendsOnly {
|
|
if length := len([]rune(entry)); length > FieldEntryMaxLength {
|
|
return fmt.Sprintf("friends_only.%d: name max length is %d characters, length is %d", i, FieldEntryMaxLength, length)
|
|
}
|
|
}
|
|
|
|
for i, entry := range f.Avoid {
|
|
if length := len([]rune(entry)); length > FieldEntryMaxLength {
|
|
return fmt.Sprintf("avoid.%d: name max length is %d characters, length is %d", i, FieldEntryMaxLength, length)
|
|
}
|
|
}
|
|
|
|
return ""
|
|
}
|
|
|
|
// UserFields returns the fields associated with the given user ID.
|
|
func (db *DB) UserFields(ctx context.Context, id xid.ID) (fs []Field, err error) {
|
|
sql, args, err := sq.
|
|
Select("id", "name", "favourite", "okay", "jokingly", "friends_only", "avoid").
|
|
From("user_fields").Where("user_id = ?", id).OrderBy("id ASC").ToSql()
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "building sql")
|
|
}
|
|
|
|
err = pgxscan.Select(ctx, db, &fs, sql, args...)
|
|
if err != nil {
|
|
return nil, errors.Cause(err)
|
|
}
|
|
return fs, nil
|
|
}
|
|
|
|
// SetUserFields updates the fields for the given user.
|
|
func (db *DB) SetUserFields(ctx context.Context, tx pgx.Tx, userID xid.ID, fields []Field) (err error) {
|
|
sql, args, err := sq.Delete("user_fields").Where("user_id = ?", userID).ToSql()
|
|
if err != nil {
|
|
return errors.Wrap(err, "building sql")
|
|
}
|
|
|
|
_, err = tx.Exec(ctx, sql, args...)
|
|
if err != nil {
|
|
return errors.Wrap(err, "deleting existing fields")
|
|
}
|
|
|
|
_, err = tx.CopyFrom(ctx,
|
|
pgx.Identifier{"user_fields"},
|
|
[]string{"name", "favourite", "okay", "jokingly", "friends_only", "avoid"},
|
|
pgx.CopyFromSlice(len(fields), func(i int) ([]any, error) {
|
|
return []any{
|
|
fields[i].Name,
|
|
fields[i].Favourite,
|
|
fields[i].Okay,
|
|
fields[i].Jokingly,
|
|
fields[i].FriendsOnly,
|
|
fields[i].Avoid,
|
|
}, nil
|
|
}))
|
|
if err != nil {
|
|
return errors.Wrap(err, "inserting new fields")
|
|
}
|
|
return nil
|
|
}
|