218 lines
4.8 KiB
Go
218 lines
4.8 KiB
Go
package discord
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import (
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"context"
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"github.com/pkg/errors"
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"strings"
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"github.com/sirupsen/logrus"
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"github.com/tribalwarshelp/dcbot/message"
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"github.com/tribalwarshelp/golang-sdk/sdk"
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"github.com/tribalwarshelp/dcbot/group"
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"github.com/tribalwarshelp/dcbot/model"
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"github.com/tribalwarshelp/dcbot/observation"
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"github.com/tribalwarshelp/dcbot/server"
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"github.com/bwmarrin/discordgo"
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)
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type SessionConfig struct {
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Token string
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CommandPrefix string
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Status string
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ServerRepository server.Repository
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GroupRepository group.Repository
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ObservationRepository observation.Repository
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API *sdk.SDK
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}
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type Session struct {
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dg *discordgo.Session
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cfg SessionConfig
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handlers commandHandlers
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messageProcessors []messageProcessor
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}
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func New(cfg SessionConfig) (*Session, error) {
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var err error
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s := &Session{
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cfg: cfg,
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}
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s.dg, err = discordgo.New("Bot " + cfg.Token)
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if err != nil {
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return nil, err
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}
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if err := s.init(); err != nil {
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return nil, err
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}
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return s, nil
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}
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func (s *Session) init() error {
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s.handlers = commandHandlers{
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&hndlrHelp{s},
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&hndlrAuthor{s},
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&hndlrTribe{s},
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&hndlrChangeLanguage{s},
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&hndlrAddGroup{s},
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&hndlrDeleteGroup{s},
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&hndlrGroups{s},
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&hndlrObserve{s},
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&hndlrDeleteObservation{s},
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&hndlrObservations{s},
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&hndlrConqueredVillages{s},
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&hndlrDisableConqueredVillages{s},
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&hndlrLostVillages{s},
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&hndlrDisableLostVillages{s},
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&hndlrShowEnnobledBarbarians{s},
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&hndlrShowInternals{s},
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&hndlrCoordsTranslation{s},
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&hndlrDisableCoordsTranslation{s},
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}
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s.messageProcessors = []messageProcessor{
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&procTranslateCoords{s},
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}
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s.dg.AddHandler(s.handleNewMessage)
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err := s.dg.Open()
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if err != nil {
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return errors.Wrap(err, "error opening ws connection")
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}
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if err := s.UpdateStatus(s.cfg.Status); err != nil {
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return err
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}
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return nil
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}
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func (s *Session) Close() error {
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return s.dg.Close()
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}
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func (s *Session) SendMessage(channelID, message string) error {
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_, err := s.dg.ChannelMessageSend(channelID, message)
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return err
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}
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func (s *Session) SendEmbed(channelID string, e *Embed) error {
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for _, fields := range splitEmbedFields(e) {
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fieldsLen := len(fields)
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for i := 0; i < fieldsLen; i += EmbedLimitField {
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end := i + EmbedLimitField
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if end > fieldsLen {
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end = fieldsLen
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}
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e.Fields = fields[i:end]
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if _, err := s.dg.ChannelMessageSendEmbed(channelID, e.MessageEmbed); err != nil {
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return err
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}
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}
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}
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return nil
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}
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func (s *Session) UpdateStatus(status string) error {
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if err := s.dg.UpdateGameStatus(0, status); err != nil {
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return err
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}
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return nil
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}
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func (s *Session) IsGuildMember(guildID string) (bool, error) {
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_, err := s.dg.State.Guild(guildID)
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if err != nil {
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if _, err = s.dg.Guild(guildID); err != nil {
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return false, err
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}
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}
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return true, nil
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}
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func (s *Session) handleNewMessage(_ *discordgo.Session, m *discordgo.MessageCreate) {
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if m.Author.ID == s.dg.State.User.ID || m.Author.Bot {
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return
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}
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parts := strings.Split(m.Content, " ")
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args := parts[1:]
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svr := &model.Server{
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ID: m.GuildID,
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Lang: message.GetDefaultLanguage().String(),
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}
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if svr.ID != "" {
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if err := s.cfg.ServerRepository.Store(context.Background(), svr); err != nil {
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return
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}
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}
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ctx := &commandCtx{
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server: svr,
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localizer: message.NewLocalizer(svr.Lang),
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}
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h := s.handlers.find(s.cfg.CommandPrefix, parts[0])
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if h != nil {
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if h.requireAdmPermissions() && m.GuildID != "" {
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has, err := s.memberHasPermission(m.GuildID, m.Author.ID, discordgo.PermissionAdministrator)
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if err != nil || !has {
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return
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}
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}
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log.
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WithFields(logrus.Fields{
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"serverID": svr.ID,
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"lang": svr.Lang,
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"command": parts[0],
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"args": args,
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"authorID": m.Author.ID,
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"authorUsername": m.Author.Username,
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}).
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Infof(`handleNewMessage: Executing command "%s"...`, m.Content)
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h.execute(ctx, m, args...)
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return
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}
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for _, p := range s.messageProcessors {
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p.process(ctx, m)
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}
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}
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func (s *Session) memberHasPermission(guildID string, userID string, permission int64) (bool, error) {
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member, err := s.dg.State.Member(guildID, userID)
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if err != nil {
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if member, err = s.dg.GuildMember(guildID, userID); err != nil {
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return false, err
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}
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}
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// check if user is a guild owner
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guild, err := s.dg.State.Guild(guildID)
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if err != nil {
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if guild, err = s.dg.Guild(guildID); err != nil {
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return false, err
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}
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}
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if guild.OwnerID == userID {
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return true, nil
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}
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// Iterate through the role IDs stored in member.Roles
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// to check permissions
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for _, roleID := range member.Roles {
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role, err := s.dg.State.Role(guildID, roleID)
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if err != nil {
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return false, err
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}
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if role.Permissions&permission != 0 {
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return true, nil
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}
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}
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return false, nil
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}
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