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commands.go
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commands.go
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package main
import (
"github.com/bwmarrin/discordgo"
"regexp"
"strconv"
"strings"
)
// ParseForCommands parses input for Commands, returns message if no command specified, else return is empty
func ParseForCommands(line string) string {
if len(line) < 2 {
return line
}
switch line[:2] {
case "s/":
// `s/X/Y/` replace X with Y in the last message sent
r := regexp.MustCompile(`s/([^/]+)/([^/]*)/$`)
n := r.FindStringSubmatchIndex(line)
if len(n) < 1 {
return ""
}
i := 0
var m *discordgo.Message
for i = len(State.Messages) - 1; i >= 0; i-- {
m = State.Messages[i]
if m.ChannelID == State.Channel.ID && m.GuildID == State.Guild.ID && m.Author.ID == Session.User.ID {
break
}
}
if i == 0 || !strings.Contains(m.Content, line[n[2]:n[3]]) {
return ""
}
r, err := regexp.Compile("(" + line[n[2]:n[3]] + ")")
if err != nil {
Msg(ErrorMsg, "%s - invalid regex\n", line)
}
rep := r.ReplaceAllString(m.Content, line[n[4]:n[5]])
newm := discordgo.NewMessageEdit(m.ChannelID, m.ID)
newm = newm.SetContent(rep)
_, err = State.Session.DiscordGo.ChannelMessageEditComplex(newm)
if err != nil {
Msg(ErrorMsg, "%s\n", err)
return ""
}
Msg(TextMsg, "%s → %s\n", m.Content, rep)
return ""
case ":?":
// Show help menu
Msg(TextMsg, "Commands: \n")
Msg(TextMsg, "s/X/Y/ - Replace X with Y in the last message\n")
Msg(TextMsg, "[:g] - Open guild menu\n")
Msg(TextMsg, "[:p] - Open private message menu\n")
Msg(TextMsg, "[:c] - Open guild channel menu\n")
Msg(TextMsg, "[:c ?] - List guild channels\n")
Msg(TextMsg, "[:c <num>] - Go directly to channel <num>\n")
Msg(TextMsg, "[:m <num>] - Display last <num> messages\n")
Msg(TextMsg, "[:n <name>] - Change username to <name>\n")
Msg(TextMsg, "[:!] - Print current server information\n")
Msg(TextMsg, "[:?] - Print this menu\n")
return ""
case ":g":
// Choose a server (guild)
SelectGuild()
return ""
case ":p":
// Enter DM menu
SelectPrivate()
return ""
case ":c":
// Choose a channel within the server
opts := strings.Split(line, " ")
if len(opts) == 1 {
SelectChannel()
return ""
}
selectID := 0
if opts[1] == "?" {
for _, channel := range State.Channels {
if channel.Type == 0 {
Msg(TextMsg, "[%d] %s\n", selectID, channel.Name)
selectID++
}
}
return ""
}
selectMap := make(map[int]*discordgo.Channel)
for _, channel := range State.Channels {
if channel.Type == 0 {
selectMap[selectID] = channel
selectID++
}
}
selection, err := strconv.Atoi(opts[1])
if err != nil {
Msg(ErrorMsg, "[:c] Argument Error: %s\n", err)
return ""
}
if len(State.Channels) < selection || selection < 0 {
Msg(ErrorMsg, "[:c] Argument Error: Out of bounds\n")
return ""
}
channel := selectMap[selection]
State.SetChannel(channel.ID)
ShowContent()
return ""
case ":m":
// Load message backlog -- TODO currently does not retrieve more than n messages
AmountStr := strings.Split(line, " ")
if len(AmountStr) < 2 {
Msg(ErrorMsg, "[:m] No Arguments \n")
return ""
}
Amount, err := strconv.Atoi(AmountStr[1])
if err != nil {
Msg(ErrorMsg, "[:m] Argument Error: %s \n", err)
return ""
}
Msg(InfoMsg, "Printing last %d messages!\n", Amount)
State.RetrieveMessages(Amount)
PrintMessages(Amount)
return ""
case ":n":
// Change nickname
session := State.Session
user := session.User
oldName := user.Username
newName := strings.TrimPrefix(line, ":n ")
_, err := State.Session.DiscordGo.UserUpdate(user.Email, session.Password, newName, user.Avatar, "")
if err != nil {
Msg(ErrorMsg, "[:n] Argument Error: %s\n", err)
return ""
}
Msg(TextMsg, "%s → %s\n", oldName, newName)
return ""
case ":!":
// Print current server information
Msg(TextMsg, GuildInfo(State.Guild))
return ""
}
return line
}
//SelectGuild selects a new Guild
func SelectGuild() {
State.Enabled = false
SelectGuildMenu()
// Segfaults would happen here
SelectChannelMenu()
State.Enabled = true
ShowContent()
}
//AddUserChannel moves a user to a private channel with another user.
func AddUserChannel() {
State.Enabled = false
AddUserChannelMenu()
State.Enabled = true
ShowContent()
}
//SelectChannel selects a new Channel
func SelectChannel() {
State.Enabled = false
SelectChannelMenu()
State.Enabled = true
ShowContent()
}
//SelectPrivate a private channel
func SelectPrivate() {
State.Enabled = false
SelectPrivateMenu()
State.Enabled = true
ShowContent()
}
//SelectDeletePrivate a private channel
func SelectDeletePrivate() {
State.Enabled = false
SelectDeletePrivateMenu()
State.Enabled = true
ShowContent()
}