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bot.go
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bot.go
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package katia
import (
"os"
"path/filepath"
"plugin"
"github.com/bwmarrin/discordgo"
"github.com/sirupsen/logrus"
mapset "github.com/deckarep/golang-set"
)
type Bot struct {
*Context
Session *discordgo.Session
Logger *logrus.Logger
plugins map[string]*Plugin
commands map[string]*Command
components map[string]*Component
}
func New(token string) (*Bot, error) {
bot := &Bot{
Context: &Context{values: make(map[string]interface{})},
Logger: &logrus.Logger{
Out: os.Stdout,
Level: logrus.InfoLevel,
Formatter: &logrus.JSONFormatter{
DataKey: "data",
PrettyPrint: true,
},
},
plugins: map[string]*Plugin{},
commands: map[string]*Command{},
components: map[string]*Component{},
}
{
session, err := discordgo.New("Bot " + token)
if err != nil {
return nil, err
}
session.AddHandler(func(_ *discordgo.Session, e *discordgo.Ready) {
handleReady(bot, e)
})
session.AddHandler(func(_ *discordgo.Session, e *discordgo.InteractionCreate) {
handleInteractionCreate(bot, e)
})
bot.Session = session
}
{
paths, err := filepath.Glob("plugins/*.so")
if err != nil {
return nil, err
}
for _, path := range paths {
pkg, err := plugin.Open(path)
if err != nil {
return nil, err
}
symbol, err := pkg.Lookup("Plugin")
if err != nil {
return nil, err
}
plugin, ok := symbol.(*Plugin)
if !ok {
return nil, ErrPluginBroken
}
if err := bot.RegisterPlugin(plugin); err != nil {
return nil, err
}
}
}
return bot, nil
}
// Plugin 메소드는 이름으로 플러그인을 찾아 반환합니다
func (bot Bot) Plugin(name string) *Plugin {
if plugin, ok := bot.plugins[name]; ok {
return plugin
}
return nil
}
// Command 메소드는 이름으로 명령어 구조를 찾아 반환합니다
func (bot Bot) Command(name string) *Command {
if command, ok := bot.commands[name]; ok {
return command
}
return nil
}
// Component 메소드는 이름으로 명령어 구조를 찾아 반환합니다
func (bot Bot) Component(name string) *Component {
if component, ok := bot.components[name]; ok {
return component
}
return nil
}
// RegisterPlugin
func (bot *Bot) RegisterPlugin(plugin *Plugin) error {
if bot.Plugin(plugin.Name) != nil {
return ErrPluginConflict
}
if plugin.Logger == nil {
plugin.Logger = bot.Logger.WithField("plugin", plugin)
}
bot.plugins[plugin.Name] = plugin
bot.Logger.
WithField("plugin", plugin).
Infof("plugin '%s' registered", plugin.Name)
return nil
}
// RegisterCommand
func (bot *Bot) RegisterCommand(command *Command) error {
if bot.Command(command.Name) != nil {
return ErrCommandConflict
}
appID := bot.Session.State.User.ID
app := &discordgo.ApplicationCommand{
Name: command.Name,
Description: command.Description,
}
if command.Options != nil {
app.Options = command.parseOptions(command.Options)
}
log := bot.Logger.WithField("command", command)
if _, err := bot.Session.ApplicationCommandCreate(appID, "882969983418785802", app); err != nil {
log.Error(err)
}
bot.commands[command.Name] = command
log.Infof("command '%s' registered", command.Name)
return nil
}
// RegisterComponent
func (bot *Bot) RegisterComponent(component *Component) error {
if bot.Component(component.Name) != nil {
return ErrComponentConflict
}
bot.components[component.Name] = component
bot.Logger.
WithField("component", component).
Infof("component '%s' registered", component.Name)
return nil
}
func (bot Bot) ResolvePluginGraph() ([]*Plugin, error) {
sets := map[string]mapset.Set{}
resolved := []*Plugin{}
for name, plugin := range bot.plugins {
set := mapset.NewSet()
for _, dep := range plugin.Depends {
set.Add(dep)
}
sets[name] = set
}
for len(sets) != 0 {
ready := mapset.NewSet()
for name, deps := range sets {
if deps.Cardinality() == 0 {
ready.Add(name)
}
}
if ready.Cardinality() == 0 {
g := []*Plugin{}
for name := range sets {
g = append(g, bot.plugins[name])
}
return g, ErrPluginDependCircular
}
for name := range ready.Iter() {
delete(sets, name.(string))
resolved = append(resolved, bot.plugins[name.(string)])
}
for name, deps := range sets {
sets[name] = deps.Difference(ready)
}
}
return resolved, nil
}