From 6701335302e5f03402d10aa53984c7c2bd9c4bf3 Mon Sep 17 00:00:00 2001
From: Bohdan Horbeshko <bodqhrohro@gmail.com>
Date: Thu, 3 Feb 2022 13:51:27 -0500
Subject: [PATCH] Add /unban / /promote commands

---
 telegram/commands.go | 58 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/telegram/commands.go b/telegram/commands.go
index 238b774..fc3064c 100644
--- a/telegram/commands.go
+++ b/telegram/commands.go
@@ -17,6 +17,17 @@ import (
 const notEnoughArguments string = "Not enough arguments"
 const telegramNotInitialized string = "Telegram connection is not initialized yet"
 const notOnline string = "Not online"
+var permissionsAdmin = client.ChatMemberStatusAdministrator{
+	CanBeEdited:        true,
+	CanChangeInfo:      true,
+	CanPostMessages:    true,
+	CanEditMessages:    true,
+	CanDeleteMessages:  true,
+	CanInviteUsers:     true,
+	CanRestrictMembers: true,
+	CanPinMessages:     true,
+	CanPromoteMembers:  false,
+}
 var permissionsMember = client.ChatPermissions{
 	CanSendMessages:       true,
 	CanSendMediaMessages:  true,
@@ -60,6 +71,8 @@ var chatCommands = map[string]command{
 	"mute":       command{"id or @username [hours]", "mute user in current chat"},
 	"unmute":     command{"id or @username", "unrestrict user from current chat"},
 	"ban":        command{"id or @username [hours]", "restrict @username from current chat for [hours] or forever"},
+	"unban":      command{"id or @username", "unbans @username in current chat (and devotes from admins)"},
+	"promote":    command{"id or @username [title]", "promote user to admin in current chat"},
 	"leave":      command{"", "leave current chat"},
 	"close":      command{"", "close current secret chat"},
 	"delete":     command{"", "delete current chat from chat list"},
@@ -661,6 +674,51 @@ func (c *Client) ProcessChatCommand(chatID int64, cmdline string) (string, bool)
 		if err != nil {
 			return err.Error(), true
 		}
+	// unban @username
+	case "unban":
+		if len(args) < 1 {
+			return notEnoughArguments, true
+		}
+
+		contact, _, err := c.GetContactByUsername(args[0])
+		if err != nil {
+			return err.Error(), true
+		}
+
+		_, err = c.client.SetChatMemberStatus(&client.SetChatMemberStatusRequest{
+			ChatId: chatID,
+			MemberId: &client.MessageSenderUser{UserId: contact.Id},
+			Status: &client.ChatMemberStatusMember{},
+		})
+		if err != nil {
+			return err.Error(), true
+		}
+	// promote @username to admin
+	case "promote":
+		if len(args) < 1 {
+			return notEnoughArguments, true
+		}
+
+		contact, _, err := c.GetContactByUsername(args[0])
+		if err != nil {
+			return err.Error(), true
+		}
+
+		// clone the permissions
+		status := permissionsAdmin
+
+		if len(args) > 1 {
+			status.CustomTitle = args[1]
+		}
+
+		_, err = c.client.SetChatMemberStatus(&client.SetChatMemberStatusRequest{
+			ChatId: chatID,
+			MemberId: &client.MessageSenderUser{UserId: contact.Id},
+			Status: &status,
+		})
+		if err != nil {
+			return err.Error(), true
+		}
 	// leave current chat
 	case "leave":
 		_, err := c.client.LeaveChat(&client.LeaveChatRequest{