/
command.go
111 lines (94 loc) · 2.15 KB
/
command.go
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package commands
import (
"fmt"
"strings"
"github.com/bwmarrin/discordgo"
"go.uber.org/multierr"
)
type Command interface {
Name() string
Apply(*Context) error
SkipsPrefix() bool
}
type Context struct {
Message *discordgo.Message
Content string
Args []string
Session *discordgo.Session
}
func (ctx *Context) Reply(s string) (*discordgo.Message, error) {
return ctx.Session.ChannelMessageSendEmbedReply(
ctx.Message.ChannelID,
&discordgo.MessageEmbed{
Fields: []*discordgo.MessageEmbedField{
{
Name: "Result",
Value: s,
},
},
},
ctx.Reference(),
)
}
func (ctx *Context) Error(err error) (*discordgo.Message, error) {
return ctx.Session.ChannelMessageSendEmbedReply(
ctx.Message.ChannelID,
&discordgo.MessageEmbed{
Fields: []*discordgo.MessageEmbedField{
{
Name: "Error",
Value: err.Error(),
},
},
Color: 0xFF0000,
},
ctx.Reference(),
)
}
func (ctx *Context) Reference() *discordgo.MessageReference {
return &discordgo.MessageReference{
MessageID: ctx.Message.ID,
ChannelID: ctx.Message.ChannelID,
GuildID: ctx.Message.GuildID,
}
}
const DISCORD_MSG_MAX_LEN = 2000
func (ctx *Context) ReplyList(s []string) ([]*discordgo.Message, error) {
if len(s) == 0 {
return []*discordgo.Message{}, nil
}
itemTpl := "`%s`\n"
templated := make([]string, len(s))
for i := range s {
templated = append(templated, fmt.Sprintf(itemTpl, s[i]))
}
var sb strings.Builder
totalLength := 0
var sentMessages []*discordgo.Message
var err error
for i := range templated {
if totalLength+len(templated[i]) > DISCORD_MSG_MAX_LEN {
msg, msgerr := ctx.Session.ChannelMessageSendReply(
ctx.Message.ChannelID,
sb.String(),
ctx.Reference(),
)
sentMessages = append(sentMessages, msg)
err = multierr.Append(err, msgerr)
sb.Reset()
totalLength = 0
}
totalLength += len(templated[i])
sb.WriteString(templated[i])
}
if totalLength > 0 {
msg, msgerr := ctx.Session.ChannelMessageSendReply(
ctx.Message.ChannelID,
sb.String(),
ctx.Reference(),
)
sentMessages = append(sentMessages, msg)
err = multierr.Append(err, msgerr)
}
return sentMessages, err
}