package database

import (
	"strconv"
	"time"

	"go.etcd.io/bbolt"
)

type UnbanRecord struct {
	Username   string
	Expiration time.Time
}

func (u UnbanRecord) ExpirationString() string {
	return u.Expiration.Format("01/02/2006 at 03:04:05 pm MST")
}

func (db *Database) ListUnbans() []UnbanRecord {
	unbans := make([]UnbanRecord, 0)
	_ = db.db.View(func(tx *bbolt.Tx) error {
		return tx.Bucket(unbanBucket).ForEach(func(username, unix []byte) error {
			unixNum, err := strconv.ParseInt(string(unix), 10, 64)
			if err != nil {
				return err
			}
			unbans = append(unbans, UnbanRecord{
				Username:   string(username),
				Expiration: time.Unix(unixNum, 0),
			})
			return nil
		})
	})
	return unbans
}

func (db *Database) AddUnban(record UnbanRecord) error {
	usernameByte := []byte(record.Username)
	return db.db.Update(func(tx *bbolt.Tx) error {
		return tx.Bucket(unbanBucket).Put(usernameByte, []byte(strconv.FormatInt(record.Expiration.Unix(), 10)))
	})
}

func (db *Database) RemoveUnban(username string) error {
	usernameByte := []byte(username)
	return db.db.Update(func(tx *bbolt.Tx) error {
		return tx.Bucket(unbanBucket).Delete(usernameByte)
	})
}