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structs.go
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structs.go
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package structs
import (
"math"
"time"
humanize "github.com/dustin/go-humanize"
"strconv"
"strings"
"fmt"
"github.com/NyaaPantsu/nyaa/config"
catUtil "github.com/NyaaPantsu/nyaa/utils/categories"
"github.com/NyaaPantsu/nyaa/utils/publicSettings"
)
const (
ShowAll Status = 0
FilterRemakes = 2
Trusted = 3
APlus = 4
)
type Status uint8
type SortMode uint8
type Category struct {
Main, Sub uint8
}
type SizeBytes uint64
type DateFilter string
type Categories []*Category
// TorrentParam defines all parameters that can be provided when searching for a torrent
type TorrentParam struct {
Full bool // True means load all members
Order bool // True means ascending
Hidden bool // True means filter hidden torrents
Deleted bool // False means filter deleted torrents
Status Status
Sort SortMode
Category Categories
Max uint32
Offset uint32
UserID uint32
TorrentID uint32
FromID uint32
FromDate DateFilter
ToDate DateFilter
NotNull string // csv
NameLike string // csv
Languages publicSettings.Languages
MinSize SizeBytes
MaxSize SizeBytes
}
func (p *TorrentParam) Identifier() string {
cats := ""
for _, v := range p.Category {
cats += fmt.Sprintf("%d%d", v.Main, v.Sub)
}
languages := ""
for _, v := range p.Languages {
languages += fmt.Sprintf("%s%s", v.Code, v.Name)
}
return fmt.Sprintf("%s%s%s%d%d%d%d%d%d%d%s%s%d%d%s%t%t%t%t", p.NameLike, p.NotNull, languages, p.Max, p.Offset, p.FromID, p.MinSize, p.MaxSize, p.Status, p.Sort, p.FromDate, p.ToDate, p.UserID, p.TorrentID, cats, p.Full, p.Order, p.Hidden, p.Deleted)
}
func (st *Status) ToString() string {
switch *st {
case FilterRemakes:
return "2"
case Trusted:
return "3"
case APlus:
return "4"
}
return ""
}
func (st *Status) Parse(s string) {
switch s {
case "2":
*st = FilterRemakes
case "3":
*st = Trusted
case "4":
*st = APlus
default:
*st = ShowAll
}
}
const (
ID SortMode = iota
Name
Date
Downloads
Size
Seeders
Leechers
Completed
)
func (s *SortMode) Parse(str string) {
switch str {
case "1":
*s = Name
case "2":
*s = Date
case "3":
*s = Downloads
case "4":
*s = Size
case "5":
*s = Seeders
case "6":
*s = Leechers
case "7":
*s = Completed
default:
*s = Date
}
}
/* INFO Always need to keep in sync with the field that are used in the
* elasticsearch index.
* TODO Verify the field in postgres database
*/
func (s *SortMode) ToESField() string {
switch *s {
case ID:
return "id"
case Name:
return "name.raw"
case Date:
return "date"
case Downloads:
return "downloads"
case Size:
return "filesize"
case Seeders:
return "seeders"
case Leechers:
return "leechers"
case Completed:
return "completed"
}
return "id"
}
func (s *SortMode) ToDBField() string {
switch *s {
case ID:
return "torrent_id"
case Name:
return "torrent_name"
case Date:
return "date"
case Downloads:
return "downloads"
case Size:
return "filesize"
case Seeders:
return "seeders"
case Leechers:
return "leechers"
case Completed:
return "completed"
}
return config.Get().Torrents.Order
}
func (c Category) String() (s string) {
if c.Main != 0 {
s += strconv.Itoa(int(c.Main))
}
s += "_"
if c.Sub != 0 {
s += strconv.Itoa(int(c.Sub))
}
return
}
func (c Category) IsSet() bool {
return c.IsMainSet() && c.IsSubSet()
}
func (c Category) IsMainSet() bool {
return c.Main != 0
}
func (c Category) IsSubSet() bool {
return c.Sub != 0
}
// ParseCategories sets category by string
func ParseCategories(s string) []*Category {
if s != "" {
parts := strings.Split(s, ",")
var categories []*Category
for _, val := range parts {
partsCat := strings.Split(val, "_")
if len(partsCat) == 2 {
tmp, err := strconv.ParseUint(partsCat[0], 10, 8)
if err == nil {
c := uint8(tmp)
tmp, err = strconv.ParseUint(partsCat[1], 10, 8)
var sub uint8
if err == nil {
sub = uint8(tmp)
}
if catUtil.Exists(partsCat[0] + "_" + partsCat[1]) {
categories = append(categories, &Category{
Main: c,
Sub: sub,
})
}
}
}
}
return categories
}
return Categories{}
}
// ParseLanguages sets languages by string
func ParseLanguages(s string) publicSettings.Languages {
var languages publicSettings.Languages
if s != "" {
parts := strings.Split(s, ",")
for _, lang := range parts {
languages = append(languages, publicSettings.Language{Name: "", Code: lang}) // We just need the code
}
}
return languages
}
func (sz *SizeBytes) Parse(s string, sizeType string) bool {
if s == "" {
*sz = 0
return false
}
var multiplier uint64
switch sizeType {
case "b":
multiplier = 1
case "k":
multiplier = uint64(math.Exp2(10))
case "m":
multiplier = uint64(math.Exp2(20))
case "g":
multiplier = uint64(math.Exp2(30))
}
size64, err := humanize.ParseBytes(s)
if err != nil {
*sz = 0
return false
}
*sz = SizeBytes(size64 * multiplier)
return true
}
func (d *DateFilter) Parse(s string, dateType string) bool {
if s == "" {
*d = ""
return false
}
dateInt, err := strconv.Atoi(s)
if err != nil {
*d = ""
return false
}
switch dateType {
case "m":
*d = DateFilter(time.Now().AddDate(0, -dateInt, 0).Format("2006-01-02"))
case "y":
*d = DateFilter(time.Now().AddDate(-dateInt, 0, 0).Format("2006-01-02"))
default:
*d = DateFilter(time.Now().AddDate(0, 0, -dateInt).Format("2006-01-02"))
}
return true
}