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Code Issues Releases Activity
arikawa/discord/snowflake.go
Maximilian von Lindern d6a45529ad
Discord: Add Sticker (#167) 
* Discord: add sticker related types

* Discord: add Sticker field to Message
2020-11-21 08:35:19 -08:00

281 lines
13 KiB
Go
Raw Blame History

package discord
import (
"strconv"
"strings"
"time"
)
// Epoch is the Discord epoch constant in time.Duration (nanoseconds)
// since Unix epoch.
const Epoch = 1420070400000 * time.Millisecond
// DurationSinceEpoch returns the duration from the Discord epoch to current.
func DurationSinceEpoch(t time.Time) time.Duration {
return time.Duration(t.UnixNano()) - Epoch
}
type Snowflake uint64
// NullSnowflake gets encoded into a null. This is used for
// optional and nullable snowflake fields.
const NullSnowflake = ^Snowflake(0)
func NewSnowflake(t time.Time) Snowflake {
return Snowflake((DurationSinceEpoch(t) / time.Millisecond) << 22)
}
func ParseSnowflake(sf string) (Snowflake, error) {
if sf == "null" {
return NullSnowflake, nil
}
u, err := strconv.ParseUint(sf, 10, 64)
if err != nil {
return 0, err
}
return Snowflake(u), nil
}
func (s *Snowflake) UnmarshalJSON(v []byte) error {
p, err := ParseSnowflake(strings.Trim(string(v), `"`))
if err != nil {
return err
}
*s = p
return nil
}
func (s Snowflake) MarshalJSON() ([]byte, error) {
// This includes 0 and null, because MarshalJSON does not dictate when a
// value gets omitted.
if !s.IsValid() {
return []byte("null"), nil
} else {
return []byte(`"` + strconv.FormatInt(int64(s), 10) + `"`), nil
}
}
// String returns the ID, or nothing if the snowflake isn't valid.
func (s Snowflake) String() string {
// Check if negative.
if !s.IsValid() {
return ""
}
return strconv.FormatUint(uint64(s), 10)
}
// IsValid returns whether or not the snowflake is valid.
func (s Snowflake) IsValid() bool {
return !(int64(s) == 0 || s == NullSnowflake)
}
// IsNull returns whether or not the snowflake is null.
func (s Snowflake) IsNull() bool {
return s == NullSnowflake
}
func (s Snowflake) Time() time.Time {
unixnano := time.Duration(s>>22)*time.Millisecond + Epoch
return time.Unix(0, int64(unixnano))
}
func (s Snowflake) Worker() uint8 {
return uint8(s & 0x3E0000 >> 17)
}
func (s Snowflake) PID() uint8 {
return uint8(s & 0x1F000 >> 12)
}
func (s Snowflake) Increment() uint16 {
return uint16(s & 0xFFF)
}
type AppID Snowflake
const NullAppID = AppID(NullSnowflake)
func (s AppID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *AppID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s AppID) String() string { return Snowflake(s).String() }
func (s AppID) IsValid() bool { return Snowflake(s).IsValid() }
func (s AppID) IsNull() bool { return Snowflake(s).IsNull() }
func (s AppID) Time() time.Time { return Snowflake(s).Time() }
func (s AppID) Worker() uint8 { return Snowflake(s).Worker() }
func (s AppID) PID() uint8 { return Snowflake(s).PID() }
func (s AppID) Increment() uint16 { return Snowflake(s).Increment() }
type AttachmentID Snowflake
const NullAttachmentID = AttachmentID(NullSnowflake)
func (s AttachmentID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *AttachmentID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s AttachmentID) String() string { return Snowflake(s).String() }
func (s AttachmentID) IsValid() bool { return Snowflake(s).IsValid() }
func (s AttachmentID) IsNull() bool { return Snowflake(s).IsNull() }
func (s AttachmentID) Time() time.Time { return Snowflake(s).Time() }
func (s AttachmentID) Worker() uint8 { return Snowflake(s).Worker() }
func (s AttachmentID) PID() uint8 { return Snowflake(s).PID() }
func (s AttachmentID) Increment() uint16 { return Snowflake(s).Increment() }
type AuditLogEntryID Snowflake
const NullAuditLogEntryID = AuditLogEntryID(NullSnowflake)
func (s AuditLogEntryID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *AuditLogEntryID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s AuditLogEntryID) String() string { return Snowflake(s).String() }
func (s AuditLogEntryID) IsValid() bool { return Snowflake(s).IsValid() }
func (s AuditLogEntryID) IsNull() bool { return Snowflake(s).IsNull() }
func (s AuditLogEntryID) Time() time.Time { return Snowflake(s).Time() }
func (s AuditLogEntryID) Worker() uint8 { return Snowflake(s).Worker() }
func (s AuditLogEntryID) PID() uint8 { return Snowflake(s).PID() }
func (s AuditLogEntryID) Increment() uint16 { return Snowflake(s).Increment() }
type ChannelID Snowflake
const NullChannelID = ChannelID(NullSnowflake)
func (s ChannelID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *ChannelID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s ChannelID) String() string { return Snowflake(s).String() }
func (s ChannelID) IsValid() bool { return Snowflake(s).IsValid() }
func (s ChannelID) IsNull() bool { return Snowflake(s).IsNull() }
func (s ChannelID) Time() time.Time { return Snowflake(s).Time() }
func (s ChannelID) Worker() uint8 { return Snowflake(s).Worker() }
func (s ChannelID) PID() uint8 { return Snowflake(s).PID() }
func (s ChannelID) Increment() uint16 { return Snowflake(s).Increment() }
func (s ChannelID) Mention() string { return "<#" + s.String() + ">" }
type EmojiID Snowflake
const NullEmojiID = EmojiID(NullSnowflake)
func (s EmojiID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *EmojiID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s EmojiID) String() string { return Snowflake(s).String() }
func (s EmojiID) IsValid() bool { return Snowflake(s).IsValid() }
func (s EmojiID) IsNull() bool { return Snowflake(s).IsNull() }
func (s EmojiID) Time() time.Time { return Snowflake(s).Time() }
func (s EmojiID) Worker() uint8 { return Snowflake(s).Worker() }
func (s EmojiID) PID() uint8 { return Snowflake(s).PID() }
func (s EmojiID) Increment() uint16 { return Snowflake(s).Increment() }
type IntegrationID Snowflake
const NullIntegrationID = IntegrationID(NullSnowflake)
func (s IntegrationID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *IntegrationID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s IntegrationID) String() string { return Snowflake(s).String() }
func (s IntegrationID) IsValid() bool { return Snowflake(s).IsValid() }
func (s IntegrationID) IsNull() bool { return Snowflake(s).IsNull() }
func (s IntegrationID) Time() time.Time { return Snowflake(s).Time() }
func (s IntegrationID) Worker() uint8 { return Snowflake(s).Worker() }
func (s IntegrationID) PID() uint8 { return Snowflake(s).PID() }
func (s IntegrationID) Increment() uint16 { return Snowflake(s).Increment() }
type GuildID Snowflake
const NullGuildID = GuildID(NullSnowflake)
func (s GuildID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *GuildID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s GuildID) String() string { return Snowflake(s).String() }
func (s GuildID) IsValid() bool { return Snowflake(s).IsValid() }
func (s GuildID) IsNull() bool { return Snowflake(s).IsNull() }
func (s GuildID) Time() time.Time { return Snowflake(s).Time() }
func (s GuildID) Worker() uint8 { return Snowflake(s).Worker() }
func (s GuildID) PID() uint8 { return Snowflake(s).PID() }
func (s GuildID) Increment() uint16 { return Snowflake(s).Increment() }
type MessageID Snowflake
const NullMessageID = MessageID(NullSnowflake)
func (s MessageID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *MessageID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s MessageID) String() string { return Snowflake(s).String() }
func (s MessageID) IsValid() bool { return Snowflake(s).IsValid() }
func (s MessageID) IsNull() bool { return Snowflake(s).IsNull() }
func (s MessageID) Time() time.Time { return Snowflake(s).Time() }
func (s MessageID) Worker() uint8 { return Snowflake(s).Worker() }
func (s MessageID) PID() uint8 { return Snowflake(s).PID() }
func (s MessageID) Increment() uint16 { return Snowflake(s).Increment() }
type RoleID Snowflake
const NullRoleID = RoleID(NullSnowflake)
func (s RoleID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *RoleID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s RoleID) String() string { return Snowflake(s).String() }
func (s RoleID) IsValid() bool { return Snowflake(s).IsValid() }
func (s RoleID) IsNull() bool { return Snowflake(s).IsNull() }
func (s RoleID) Time() time.Time { return Snowflake(s).Time() }
func (s RoleID) Worker() uint8 { return Snowflake(s).Worker() }
func (s RoleID) PID() uint8 { return Snowflake(s).PID() }
func (s RoleID) Increment() uint16 { return Snowflake(s).Increment() }
func (s RoleID) Mention() string { return "<@&" + s.String() + ">" }
type StickerID Snowflake
const NullStickerID = StickerID(NullSnowflake)
func (s StickerID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *StickerID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s StickerID) String() string { return Snowflake(s).String() }
func (s StickerID) IsValid() bool { return Snowflake(s).IsValid() }
func (s StickerID) IsNull() bool { return Snowflake(s).IsNull() }
func (s StickerID) Time() time.Time { return Snowflake(s).Time() }
func (s StickerID) Worker() uint8 { return Snowflake(s).Worker() }
func (s StickerID) PID() uint8 { return Snowflake(s).PID() }
func (s StickerID) Increment() uint16 { return Snowflake(s).Increment() }
type StickerPackID Snowflake
const NullStickerPackID = StickerPackID(NullSnowflake)
func (s StickerPackID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *StickerPackID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s StickerPackID) String() string { return Snowflake(s).String() }
func (s StickerPackID) IsValid() bool { return Snowflake(s).IsValid() }
func (s StickerPackID) IsNull() bool { return Snowflake(s).IsNull() }
func (s StickerPackID) Time() time.Time { return Snowflake(s).Time() }
func (s StickerPackID) Worker() uint8 { return Snowflake(s).Worker() }
func (s StickerPackID) PID() uint8 { return Snowflake(s).PID() }
func (s StickerPackID) Increment() uint16 { return Snowflake(s).Increment() }
type UserID Snowflake
const NullUserID = UserID(NullSnowflake)
func (s UserID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *UserID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s UserID) String() string { return Snowflake(s).String() }
func (s UserID) IsValid() bool { return Snowflake(s).IsValid() }
func (s UserID) IsNull() bool { return Snowflake(s).IsNull() }
func (s UserID) Time() time.Time { return Snowflake(s).Time() }
func (s UserID) Worker() uint8 { return Snowflake(s).Worker() }
func (s UserID) PID() uint8 { return Snowflake(s).PID() }
func (s UserID) Increment() uint16 { return Snowflake(s).Increment() }
func (s UserID) Mention() string { return "<@" + s.String() + ">" }
type WebhookID Snowflake
const NullWebhookID = WebhookID(NullSnowflake)
func (s WebhookID) MarshalJSON() ([]byte, error) { return Snowflake(s).MarshalJSON() }
func (s *WebhookID) UnmarshalJSON(v []byte) error { return (*Snowflake)(s).UnmarshalJSON(v) }
func (s WebhookID) String() string { return Snowflake(s).String() }
func (s WebhookID) IsValid() bool { return Snowflake(s).IsValid() }
func (s WebhookID) IsNull() bool { return Snowflake(s).IsNull() }
func (s WebhookID) Time() time.Time { return Snowflake(s).Time() }
func (s WebhookID) Worker() uint8 { return Snowflake(s).Worker() }
func (s WebhookID) PID() uint8 { return Snowflake(s).PID() }
func (s WebhookID) Increment() uint16 { return Snowflake(s).Increment() }
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