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arg.go
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arg.go
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package dcmd
import (
"bytes"
"fmt"
"strconv"
"strings"
"github.com/botlabs-gg/yagpdb/v2/lib/discordgo"
"github.com/botlabs-gg/yagpdb/v2/lib/dstate"
)
// ArgDef represents a argument definition, either a switch or plain arg
type ArgDef struct {
Name string
Type ArgType
Help string
Default interface{}
}
func (def *ArgDef) StandardSlashCommandOption(typ discordgo.ApplicationCommandOptionType) *discordgo.ApplicationCommandOption {
desc := cutStringShort(def.Help, 100)
if desc == "" {
desc = def.Name
}
return &discordgo.ApplicationCommandOption{
Name: def.Name,
Description: desc,
Type: typ,
}
}
// CutStringShort stops a strinng at "l"-3 if it's longer than "l" and adds "..."
func cutStringShort(s string, l int) string {
var mainBuf bytes.Buffer
var latestBuf bytes.Buffer
i := 0
for _, r := range s {
latestBuf.WriteRune(r)
if i > 3 {
lRune, _, _ := latestBuf.ReadRune()
mainBuf.WriteRune(lRune)
}
if i >= l {
return mainBuf.String() + "..."
}
i++
}
return mainBuf.String() + latestBuf.String()
}
func (def *ArgDef) NewParsedDef() *ParsedArg {
return &ParsedArg{
Def: def,
Value: def.Default,
}
}
type ParsedArg struct {
Def *ArgDef
Value interface{}
Raw *RawArg
}
func (p *ParsedArg) Str() string {
if p.Value == nil {
return ""
}
switch t := p.Value.(type) {
case string:
return t
case int, int32, int64, uint, uint32, uint64:
return strconv.FormatInt(p.Int64(), 10)
default:
return ""
}
}
// TODO: GO-Generate the number ones
func (p *ParsedArg) Int() int {
if p.Value == nil {
return 0
}
switch t := p.Value.(type) {
case int:
return t
case uint:
return int(t)
case int32:
return int(t)
case int64:
return int(t)
case uint32:
return int(t)
case uint64:
return int(t)
default:
return 0
}
}
func (p *ParsedArg) Int64() int64 {
if p.Value == nil {
return 0
}
switch t := p.Value.(type) {
case int:
return int64(t)
case uint:
return int64(t)
case int32:
return int64(t)
case int64:
return t
case uint32:
return int64(t)
case uint64:
return int64(t)
default:
return 0
}
}
func (p *ParsedArg) Float64() float64 {
if p.Value == nil {
return 0
}
switch t := p.Value.(type) {
case int:
return float64(t)
case int32:
return float64(t)
case int64:
return float64(t)
case float32:
return float64(t)
case float64:
return float64(t)
case uint:
return float64(t)
case uint32:
return float64(t)
case uint64:
return float64(t)
default:
return 0
}
}
func (p *ParsedArg) Bool() bool {
if p.Value == nil {
return false
}
switch t := p.Value.(type) {
case bool:
return t
case int, int32, int64, uint, uint32, uint64:
return p.Int64() > 0
case string:
return t != ""
}
return false
}
func (p *ParsedArg) MemberState() *dstate.MemberState {
if p.Value == nil {
return nil
}
switch t := p.Value.(type) {
case *dstate.MemberState:
return t
case *AdvUserMatch:
return t.Member
}
return nil
}
func (p *ParsedArg) User() *discordgo.User {
if p.Value == nil {
return nil
}
switch t := p.Value.(type) {
case *dstate.MemberState:
return &t.User
case *AdvUserMatch:
return t.User
}
return nil
}
func (p *ParsedArg) AdvUser() *AdvUserMatch {
if p.Value == nil {
return nil
}
switch t := p.Value.(type) {
case *AdvUserMatch:
return t
}
return nil
}
// NewParsedArgs creates a new ParsedArg slice from defs passed, also filling default values
func NewParsedArgs(defs []*ArgDef) []*ParsedArg {
out := make([]*ParsedArg, len(defs))
for k := range out {
out[k] = defs[k].NewParsedDef()
}
return out
}
type SlashCommandsParseOptions struct {
Options map[string]*discordgo.ApplicationCommandInteractionDataOption
Interaction *discordgo.Interaction
}
func (sopts *SlashCommandsParseOptions) ExpectAny(name string) (interface{}, error) {
if v, ok := sopts.ExpectAnyOpt(name); ok {
return v, nil
} else {
return 0, NewErrArgExpected(name, "any", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectAnyOpt(name string) (interface{}, bool) {
if v, ok := sopts.Options[strings.ToLower(name)]; ok {
return v.Value, true
}
return nil, false
}
func (sopts *SlashCommandsParseOptions) ExpectInt64(name string) (int64, error) {
if v, found, err := sopts.ExpectInt64Opt(name); err != nil {
return 0, err
} else if found {
return v, nil
} else {
return 0, NewErrArgExpected(name, "int64", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectInt64Opt(name string) (int64, bool, error) {
if v, ok := sopts.Options[strings.ToLower(name)]; ok {
if cast, ok2 := v.Value.(int64); ok2 {
return cast, true, nil
} else {
return 0, true, NewErrArgExpected(name, "int64", v.Value)
}
}
return 0, false, nil
}
func (sopts *SlashCommandsParseOptions) ExpectString(name string) (string, error) {
if v, found, err := sopts.ExpectStringOpt(name); err != nil {
return "", err
} else if found {
return v, nil
} else {
return "", NewErrArgExpected(name, "string", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectStringOpt(name string) (string, bool, error) {
if v, ok := sopts.Options[strings.ToLower(name)]; ok {
if cast, ok2 := v.Value.(string); ok2 {
return cast, true, nil
} else {
return "", true, NewErrArgExpected(name, "string", v.Value)
}
}
return "", false, nil
}
func (sopts *SlashCommandsParseOptions) ExpectBool(name string) (bool, error) {
if v, found, err := sopts.ExpectBoolOpt(name); err != nil {
return false, err
} else if found {
return v, nil
} else {
return false, NewErrArgExpected(name, "bool", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectBoolOpt(name string) (bool, bool, error) {
if v, ok := sopts.Options[strings.ToLower(name)]; ok {
if cast, ok2 := v.Value.(bool); ok2 {
return cast, true, nil
} else {
return false, true, NewErrArgExpected(name, "string", v.Value)
}
}
return false, false, nil
}
func (sopts *SlashCommandsParseOptions) ExpectUser(name string) (*discordgo.User, error) {
if v, found, err := sopts.ExpectUserOpt(name); err != nil {
return nil, err
} else if found {
return v, nil
} else {
return nil, NewErrArgExpected(name, "*discordgo.User", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectUserOpt(name string) (*discordgo.User, bool, error) {
id, found, err := sopts.ExpectInt64Opt(name)
if err != nil || !found {
return nil, found, err
}
user, ok := sopts.Interaction.DataCommand.Resolved.Users[id]
if !ok {
return nil, true, &ErrResolvedNotFound{Key: name, ID: id, Type: "user"}
}
return user, true, nil
}
func (sopts *SlashCommandsParseOptions) ExpectMember(name string) (*discordgo.Member, error) {
if v, found, err := sopts.ExpectMemberOpt(name); err != nil {
return nil, err
} else if found {
return v, nil
} else {
return nil, NewErrArgExpected(name, "*discordgo.Member", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectMemberOpt(name string) (*discordgo.Member, bool, error) {
id, found, err := sopts.ExpectInt64Opt(name)
if err != nil || !found {
return nil, found, err
}
member, ok := sopts.Interaction.DataCommand.Resolved.Members[id]
if !ok {
return nil, true, &ErrResolvedNotFound{Key: name, ID: id, Type: "member"}
}
user, ok := sopts.Interaction.DataCommand.Resolved.Users[id]
if !ok && member.User == nil {
return nil, true, &ErrResolvedNotFound{Key: name, ID: id, Type: "user"}
}
member.User = user
return member, true, nil
}
func (sopts *SlashCommandsParseOptions) ExpectRole(name string) (*discordgo.Role, error) {
if v, found, err := sopts.ExpectRoleOpt(name); err != nil {
return nil, err
} else if found {
return v, nil
} else {
return nil, NewErrArgExpected(name, "*discordgo.Role", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectRoleOpt(name string) (*discordgo.Role, bool, error) {
id, found, err := sopts.ExpectInt64Opt(name)
if err != nil || !found {
return nil, found, err
}
user, ok := sopts.Interaction.DataCommand.Resolved.Roles[id]
if !ok {
return nil, true, &ErrResolvedNotFound{Key: name, ID: id, Type: "role"}
}
return user, true, nil
}
func (sopts *SlashCommandsParseOptions) ExpectChannel(name string) (*discordgo.Channel, error) {
if v, found, err := sopts.ExpectChannelOpt(name); err != nil {
return nil, err
} else if found {
return v, nil
} else {
return nil, NewErrArgExpected(name, "*discordgo.Channel", nil)
}
}
func (sopts *SlashCommandsParseOptions) ExpectChannelOpt(name string) (*discordgo.Channel, bool, error) {
id, found, err := sopts.ExpectInt64Opt(name)
if err != nil || !found {
return nil, found, err
}
user, ok := sopts.Interaction.DataCommand.Resolved.Channels[id]
if !ok {
return nil, true, &ErrResolvedNotFound{Key: name, ID: id, Type: "channel"}
}
return user, true, nil
}
// ArgType is the interface argument types has to implement,
type ArgType interface {
// CheckCompatibility reports the degree to which the input matches the type.
CheckCompatibility(def *ArgDef, part string) CompatibilityResult
// Attempt to parse it, returning any error if one occured.
ParseFromMessage(def *ArgDef, part string, data *Data) (val interface{}, err error)
ParseFromInteraction(def *ArgDef, data *Data, options *SlashCommandsParseOptions) (val interface{}, err error)
// Name as shown in help
HelpName() string
SlashCommandOptions(def *ArgDef) []*discordgo.ApplicationCommandOption
}
// CompatibilityResult indicates the degree to which a value matches a type.
type CompatibilityResult int
const (
// Incompatible indicates that the value does not match the type at all. For example,
// the string "abc" would be incompatible with an integer type.
Incompatible CompatibilityResult = iota
// CompatibilityPoor indicates that the value superficially matches the
// type, but violates some required constraint or property. For example, 11
// would have poor compatibility with an integer type with range limited to
// [0, 10].
CompatibilityPoor
// CompatibilityGood indicates that the value matches the type well. For
// example, 204255221017214977 would have good compatibility with a user
// type as it has the correct length for a Discord snowflake though the ID
// may not correspond to a valid user. Similarly, 10 would have good compatibility
// with an unbounded integer type.
CompatibilityGood
)
func (c CompatibilityResult) String() string {
switch c {
case Incompatible:
return "incompatible"
case CompatibilityPoor:
return "poor compatibility"
case CompatibilityGood:
return "good compatibility"
default:
return fmt.Sprintf("CompatibilityResult(%d)", c)
}
}
// DetermineSnowflakeCompatibility returns CompatibilityGood if s could represent
// a Discord snowflake ID and Incompatible otherwise.
func DetermineSnowflakeCompatibility(s string) CompatibilityResult {
_, err := strconv.ParseInt(s, 10, 64)
if err != nil {
return Incompatible
}
const (
minSnowflakeLength = 17
maxSnowflakeLength = 19
)
if len(s) < minSnowflakeLength || len(s) > maxSnowflakeLength {
return CompatibilityPoor
}
return CompatibilityGood
}
var (
// Create some convenience instances
Int = &IntArg{}
BigInt = &IntArg{InteractionString: true}
Float = &FloatArg{}
String = &StringArg{}
User = &UserArg{}
UserID = &UserIDArg{}
Channel = &ChannelArg{}
ChannelOrThread = &ChannelArg{AllowThreads: true}
AdvUser = &AdvUserArg{EnableUserID: true, EnableUsernameSearch: true, RequireMembership: true}
AdvUserNoMember = &AdvUserArg{EnableUserID: true, EnableUsernameSearch: true}
)
// IntArg matches and parses integer arguments
// If min and max are not equal then the value has to be within min and max or else it will fail parsing
type IntArg struct {
Min, Max int64
// if we wanna support large numbers like snowflakes we have to use strings with interactions
InteractionString bool
}
var _ ArgType = (*IntArg)(nil)
func (i *IntArg) CheckCompatibility(def *ArgDef, part string) CompatibilityResult {
v, err := strconv.ParseInt(part, 10, 64)
if err != nil {
return Incompatible
}
if i.Min == i.Max || i.Min <= v && v <= i.Max {
return CompatibilityGood
}
return CompatibilityPoor
}
func (i *IntArg) ParseFromMessage(def *ArgDef, part string, data *Data) (interface{}, error) {
v, err := strconv.ParseInt(part, 10, 64)
if err != nil {
return nil, &InvalidInt{part}
}
// A valid range has been specified
if i.Max != i.Min {
if i.Max < v || i.Min > v {
return nil, &OutOfRangeError{ArgName: def.Name, Got: v, Min: i.Min, Max: i.Max}
}
} else if (i.Min != 0 || i.Max != 0) && i.Max == i.Min {
if v != i.Max {
return nil, &OutOfRangeError{ArgName: def.Name, Got: v, Min: i.Min, Max: i.Max}
}
}
return v, nil
}
func (i *IntArg) ParseFromInteraction(def *ArgDef, data *Data, options *SlashCommandsParseOptions) (val interface{}, err error) {
any, err := options.ExpectAny(def.Name)
if err != nil {
return nil, err
}
var v int64
switch t := any.(type) {
case string:
v, err = strconv.ParseInt(t, 10, 64)
if err != nil {
return nil, err
}
case int64:
v = t
default:
}
// A valid range has been specified
if i.Max != i.Min {
if i.Max < v || i.Min > v {
return nil, &OutOfRangeError{ArgName: def.Name, Got: v, Min: i.Min, Max: i.Max}
}
}
return v, nil
}
func (i *IntArg) HelpName() string {
return "Whole number"
}
func (i *IntArg) SlashCommandOptions(def *ArgDef) []*discordgo.ApplicationCommandOption {
if i.InteractionString {
return []*discordgo.ApplicationCommandOption{def.StandardSlashCommandOption(discordgo.ApplicationCommandOptionString)}
}
return []*discordgo.ApplicationCommandOption{def.StandardSlashCommandOption(discordgo.ApplicationCommandOptionInteger)}
}
// FloatArg matches and parses float arguments
// If min and max are not equal then the value has to be within min and max or else it will fail parsing
type FloatArg struct {
Min, Max float64
}
var _ ArgType = (*FloatArg)(nil)
func (f *FloatArg) CheckCompatibility(def *ArgDef, part string) CompatibilityResult {
v, err := strconv.ParseFloat(part, 64)
if err != nil {
return Incompatible
}
if f.Min == f.Max || f.Min <= v && v <= f.Max {
return CompatibilityGood
}
return CompatibilityPoor
}
func (f *FloatArg) ParseFromMessage(def *ArgDef, part string, data *Data) (interface{}, error) {
v, err := strconv.ParseFloat(part, 64)
if err != nil {
return nil, &InvalidFloat{part}
}
// A valid range has been specified
if f.Max != f.Min {
if f.Max < v || f.Min > v {
return nil, &OutOfRangeError{ArgName: def.Name, Got: v, Min: f.Min, Max: f.Max, Float: true}
}
} else if (f.Min != 0 || f.Max != 0) && f.Max == f.Min {
if v != f.Max {
return nil, &OutOfRangeError{ArgName: def.Name, Got: v, Min: f.Min, Max: f.Max}
}
}
return v, nil
}
func (f *FloatArg) ParseFromInteraction(def *ArgDef, data *Data, options *SlashCommandsParseOptions) (val interface{}, err error) {
v, err := options.ExpectString(def.Name)
if err != nil {
return nil, err
}
parsedF, err := strconv.ParseFloat(v, 64)
if err != nil {
return nil, err
}
// A valid range has been specified
if f.Max != f.Min {
if f.Max < parsedF || f.Min > parsedF {
return nil, &OutOfRangeError{ArgName: def.Name, Got: parsedF, Min: f.Min, Max: f.Max, Float: true}
}
}
return parsedF, nil
}
func (f *FloatArg) HelpName() string {
return "Decimal number"
}
func (f *FloatArg) SlashCommandOptions(def *ArgDef) []*discordgo.ApplicationCommandOption {
return []*discordgo.ApplicationCommandOption{def.StandardSlashCommandOption(discordgo.ApplicationCommandOptionString)}
}
// StringArg matches and parses float arguments
type StringArg struct{}
var _ ArgType = (*StringArg)(nil)
func (s *StringArg) CheckCompatibility(def *ArgDef, part string) CompatibilityResult {
return CompatibilityGood
}
func (s *StringArg) ParseFromMessage(def *ArgDef, part string, data *Data) (interface{}, error) {
return part, nil
}
func (s *StringArg) ParseFromInteraction(def *ArgDef, data *Data, options *SlashCommandsParseOptions) (val interface{}, err error) {
v, err := options.ExpectString(def.Name)
return v, err
}
func (s *StringArg) HelpName() string {
return "Text"
}
func (s *StringArg) SlashCommandOptions(def *ArgDef) []*discordgo.ApplicationCommandOption {
return []*discordgo.ApplicationCommandOption{def.StandardSlashCommandOption(discordgo.ApplicationCommandOptionString)}
}
// UserArg matches and parses user argument (mention/ID)
type UserArg struct{}
var _ ArgType = (*UserArg)(nil)
func (u *UserArg) CheckCompatibility(def *ArgDef, part string) CompatibilityResult {
if strings.HasPrefix(part, "<@") && strings.HasSuffix(part, ">") {
return DetermineSnowflakeCompatibility(strings.TrimPrefix(part, "!"))
}
return DetermineSnowflakeCompatibility(part)
}
func (u *UserArg) ParseFromMessage(def *ArgDef, part string, data *Data) (interface{}, error) {
if strings.HasPrefix(part, "<@") && len(part) > 3 {
// Direct mention
id := part[2 : len(part)-1]
if id[0] == '!' {
// Nickname mention
id = id[1:]
}
parsed, _ := strconv.ParseInt(id, 10, 64)
for _, v := range data.TraditionalTriggerData.Message.Mentions {
if parsed == v.ID {
return v, nil
}
}
return nil, &ImproperMention{part}
}
id, err := strconv.ParseInt(part, 10, 64)
if err != nil {
return nil, err
}
member := data.System.State.GetMember(data.GuildData.GS.ID, id)
if member != nil {
return &member.User, nil
}
m, err := data.Session.GuildMember(data.GuildData.GS.ID, id)
if err == nil {
member = dstate.MemberStateFromMember(m)
return &member.User, nil
}
return nil, err
}
func (u *UserArg) ParseFromInteraction(def *ArgDef, data *Data, options *SlashCommandsParseOptions) (val interface{}, err error) {
user, err := options.ExpectUser(def.Name)
return user, err
}
func (u *UserArg) HelpName() string {
return "User"
}
func (u *UserArg) SlashCommandOptions(def *ArgDef) []*discordgo.ApplicationCommandOption {
return []*discordgo.ApplicationCommandOption{def.StandardSlashCommandOption(discordgo.ApplicationCommandOptionUser)}
}
var CustomUsernameSearchFunc func(state dstate.StateTracker, gs *dstate.GuildSet, query string) (*dstate.MemberState, error)
func FindDiscordMemberByName(state dstate.StateTracker, gs *dstate.GuildSet, str string) (*dstate.MemberState, error) {
if CustomUsernameSearchFunc != nil {
return CustomUsernameSearchFunc(state, gs, str)
}
lowerIn := strings.ToLower(str)
partialMatches := make([]*dstate.MemberState, 0, 5)
fullMatches := make([]*dstate.MemberState, 0, 5)
state.IterateMembers(gs.ID, func(chunk []*dstate.MemberState) bool {
for _, v := range chunk {
if v == nil || v.Member == nil {
continue
}
if v.User.Username == "" {
continue
}
if strings.EqualFold(str, v.User.Username) || strings.EqualFold(str, v.Member.Nick) {
fullMatches = append(fullMatches, v)
if len(fullMatches) >= 5 {
break
}
} else if len(partialMatches) < 5 {
if strings.Contains(strings.ToLower(v.User.Username), lowerIn) {
partialMatches = append(partialMatches, v)
}
}
}
return true
})
if len(fullMatches) == 1 {
return fullMatches[0], nil
}
if len(fullMatches) == 0 && len(partialMatches) == 0 {
return nil, &UserNotFound{str}
}
out := ""
for _, v := range fullMatches {
if out != "" {
out += ", "
}
out += "`" + v.User.Username + "`"
}
for _, v := range partialMatches {
if out != "" {
out += ", "
}
out += "`" + v.User.Username + "`"
}
if len(fullMatches) > 1 {
return nil, NewSimpleUserError("Too many users with that name, " + out + ". Please re-run the command with a narrower search, mention or ID.")
}
return nil, NewSimpleUserError("Did you mean one of these? " + out + ". Please re-run the command with a narrower search, mention or ID")
}
// UserIDArg matches a mention or a plain id, the user does not have to be a part of the server
// The type of the ID is parsed into a int64
type UserIDArg struct{}
var _ ArgType = (*UserIDArg)(nil)
func (u *UserIDArg) CheckCompatibility(def *ArgDef, part string) CompatibilityResult {
// Check for mention
if strings.HasPrefix(part, "<@") && strings.HasSuffix(part, ">") {
return DetermineSnowflakeCompatibility(strings.TrimPrefix(part[2:len(part)-1], "!"))
}
// Check for ID
return DetermineSnowflakeCompatibility(part)
}
func (u *UserIDArg) ParseFromMessage(def *ArgDef, part string, data *Data) (interface{}, error) {
if strings.HasPrefix(part, "<@") && len(part) > 3 {
// Direct mention
id := part[2 : len(part)-1]
if id[0] == '!' {
// Nickname mention
id = id[1:]
}
parsed, err := strconv.ParseInt(id, 10, 64)
if err != nil {
return nil, &ImproperMention{part}
}
return parsed, nil
}
id, err := strconv.ParseInt(part, 10, 64)
if err == nil {
return id, nil
}
return nil, &ImproperMention{part}
}
func (u *UserIDArg) ParseFromInteraction(def *ArgDef, data *Data, options *SlashCommandsParseOptions) (val interface{}, err error) {
user, found, err := options.ExpectUserOpt(def.Name)
if err != nil {
return nil, err
}
if found {
return user.ID, nil
}
idStr, err := options.ExpectString(def.Name)
if err != nil {
return nil, err
}
id, err := strconv.ParseInt(idStr, 10, 64)
return id, err
}
func (u *UserIDArg) HelpName() string {
return "Mention/ID"
}
func (u *UserIDArg) SlashCommandOptions(def *ArgDef) []*discordgo.ApplicationCommandOption {
return []*discordgo.ApplicationCommandOption{def.StandardSlashCommandOption(discordgo.ApplicationCommandOptionUser)}
}
// UserIDArg matches a mention or a plain id, the user does not have to be a part of the server
// The type of the ID is parsed into a int64
type ChannelArg struct {
AllowThreads bool
}
var _ ArgType = (*ChannelArg)(nil)
func (ca *ChannelArg) CheckCompatibility(def *ArgDef, part string) CompatibilityResult {
// Check for mention
if strings.HasPrefix(part, "<#") && strings.HasSuffix(part, ">") {
return DetermineSnowflakeCompatibility(part[2 : len(part)-1])
}
// Check for ID
return DetermineSnowflakeCompatibility(part)
}
func (ca *ChannelArg) ParseFromMessage(def *ArgDef, part string, data *Data) (interface{}, error) {
if data.GuildData == nil {
return nil, nil
}
var cID int64
if strings.HasPrefix(part, "<#") && len(part) > 3 {
// Direct mention
id := part[2 : len(part)-1]
parsed, err := strconv.ParseInt(id, 10, 64)
if err != nil {
return nil, &ImproperMention{part}
}
cID = parsed
} else {
id, err := strconv.ParseInt(part, 10, 64)
if err != nil {
return nil, &ImproperMention{part}
}
cID = id
}
if ca.AllowThreads {
if c := data.GuildData.GS.GetChannelOrThread(cID); c != nil {
return c, nil
}
} else {
if c := data.GuildData.GS.GetChannel(cID); c != nil {
return c, nil
}
}
return nil, &ImproperMention{part}
}
func (ca *ChannelArg) ParseFromInteraction(def *ArgDef, data *Data, options *SlashCommandsParseOptions) (val interface{}, err error) {
if data.GuildData == nil {
return nil, nil
}
channel, err := options.ExpectChannel(def.Name)
if err != nil {
return nil, err
}
if ca.AllowThreads {
if cs := data.GuildData.GS.GetChannelOrThread(channel.ID); cs != nil {
return cs, nil
}
} else {
if cs := data.GuildData.GS.GetChannel(channel.ID); cs != nil {
return cs, nil
}
}
return ErrChannelNotFound, nil
}
func (ca *ChannelArg) HelpName() string {
return "Channel"
}
func (ca *ChannelArg) SlashCommandOptions(def *ArgDef) []*discordgo.ApplicationCommandOption {
return []*discordgo.ApplicationCommandOption{def.StandardSlashCommandOption(discordgo.ApplicationCommandOptionChannel)}
}
type AdvUserMatch struct {
// Member may not be present if "RequireMembership" is false
Member *dstate.MemberState
// User is always present
User *discordgo.User
}
func (a *AdvUserMatch) UsernameOrNickname() string {
if a.Member != nil && a.Member.Member != nil {
if a.Member.Member.Nick != "" {
return a.Member.Member.Nick
}
}
return a.User.Username
}
// AdvUserArg is a more advanced version of UserArg and UserIDArg, it will return a AdvUserMatch
type AdvUserArg struct {
EnableUserID bool // Whether to check for user IDS
EnableUsernameSearch bool // Whether to search for usernames
RequireMembership bool // Whether this requires a membership of the server, if set then Member will always be populated
}
var _ ArgType = (*AdvUserArg)(nil)
func (u *AdvUserArg) CheckCompatibility(def *ArgDef, part string) CompatibilityResult {
if strings.HasPrefix(part, "<@") && strings.HasSuffix(part, ">") {
return DetermineSnowflakeCompatibility(strings.TrimPrefix(part[2:len(part)-1], "!"))
}
if u.EnableUserID {
if DetermineSnowflakeCompatibility(part[2:len(part)-1]) == CompatibilityGood {
return CompatibilityGood
}
}