Paginate channels to get over 200 channels limit

Based upon 42wim/matterircd#491

channels.go

@@ -224,8 +224,13 @@ func (m *Client) UpdateChannelsTeam(teamID string) error {
 		}
 	}
 
+	idx := 0
+	max := 200
+
+	var moreChannels []*model.Channel
+
 	for {
-		mmchannels, resp, err = m.Client.GetPublicChannelsForTeam(teamID, 0, 5000, "")
+		mmchannels, resp, err = m.Client.GetPublicChannelsForTeam(teamID, idx, max, "")
 		if err == nil {
 			break
 		}
@@ -235,10 +240,27 @@ func (m *Client) UpdateChannelsTeam(teamID string) error {
 		}
 	}
 
+	for len(mmchannels) > 0 {
+		moreChannels = append(moreChannels, mmchannels...)
+
+		for {
+			mmchannels, resp, err = m.Client.GetPublicChannelsForTeam(teamID, idx, max, "")
+			if err == nil {
+				idx++
+
+				break
+			}
+
+			if err := m.HandleRatelimit("GetPublicChannelsForTeam", resp); err != nil {
+				return err
+			}
+		}
+	}
+
 	for idx, t := range m.OtherTeams {
 		if t.ID == teamID {
 			m.Lock()
-			m.OtherTeams[idx].MoreChannels = mmchannels
+			m.OtherTeams[idx].MoreChannels = moreChannels
 			m.Unlock()
 		}
 	}

matterclient.go

@@ -144,6 +144,10 @@ func (m *Client) Login() error {
 		return err
 	}
 
+	if err := m.initUserChannels(); err != nil {
+		return err
+	}
+
 	if m.Team == nil {
 		validTeamNames := make([]string, len(m.OtherTeams))
 		for i, t := range m.OtherTeams {
@@ -332,38 +336,37 @@ func (m *Client) initUser() error {
 
 			time.Sleep(time.Millisecond * 200)
 		}
-
-		m.logger.Infof("found %d users in team %s", len(usermap), team.Name)
+		m.logger.Debugf("found %d users in team %s", len(usermap), team.Name)
+		// add all users
+		for k, v := range usermap {
+			m.Users[k] = v
+		}
 
 		t := &Team{
 			Team:  team,
 			Users: usermap,
 			ID:    team.Id,
 		}
 
-		mmchannels, _, err := m.Client.GetChannelsForTeamForUser(team.Id, m.User.Id, false, "")
-		if err != nil {
-			return err
-		}
-
-		t.Channels = mmchannels
-
-		mmchannels, _, err = m.Client.GetPublicChannelsForTeam(team.Id, 0, 5000, "")
-		if err != nil {
-			return err
-		}
-
-		t.MoreChannels = mmchannels
 		m.OtherTeams = append(m.OtherTeams, t)
 
 		if team.Name == m.Credentials.Team {
 			m.Team = t
 			m.logger.Debugf("initUser(): found our team %s (id: %s)", team.Name, team.Id)
 		}
-		// add all users
-		for k, v := range t.Users {
-			m.Users[k] = v
-		}
+	}
+
+	return nil
+}
+
+func (m *Client) initUserChannels() error {
+	if err := m.UpdateChannels(); err != nil {
+		return err
+	}
+
+	for _, t := range m.OtherTeams {
+		m.logger.Debugf("found %d channels for user in team %s", len(t.Channels), t.Team.Name)
+		m.logger.Debugf("found %d public channels in team %s", len(t.MoreChannels), t.Team.Name)
 	}
 
 	return nil