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/* mal2go - MyAnimeList V2 API wrapper for Go
* Copyright (C) 2022 Vidhu Kant Sharma <vidhukant@protonmail.ch>
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>. */
package anime
import (
"errors"
"fmt"
)
// if fields aren't specified
func fieldsErrHandler(fields []string) ([]string, error) {
if cap(fields) == 0 {
// uses all the default fields if none specified
return DefaultFields, nil
}
// checks if each given field is valid
for _, j := range(fields) {
if !isValidField(j) {
return []string{}, errors.New(fmt.Sprintf("InvalidFieldError: Invalid field specified: \"%s\"", j))
}
}
// everything's fine!
return fields, nil
}
// if limit or error specified are above the limit
func limitsErrHandler(limit, offset int) error {
maxOffset := 500 - limit
if limit > 500 {
return errors.New(fmt.Sprintf("InvalidLimitError: Limit specified too high (%d > 500).", limit))
} else if offset > maxOffset {
return errors.New(fmt.Sprintf("InvalidOffsetError: Offset specified too high (%d > %d).", offset, maxOffset))
}
// return nil if no error
return nil
}
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