Make new commands and examples

src/SlashCommands/Minecraft.lua

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+local Discordia = require('discordia')
+local json = require('json')
+local http_request = require('../Modules/http.lua')
+Discordia.extensions()
+
+local ApplicationCommandOptionTypes = Discordia.enums.appCommandOptionType
+
+local SlashCommandTools = require('discordia-slash').util.tools()
+
+local MinecraftMainCommand = SlashCommandTools.slashCommand('minecraft', 'Minecraft server related commands')
+
+local MinecraftStatusSubCommand = SlashCommandTools.subCommand('status', 'Get the Minecraft server status according to the preferred IP address set for this server')
+local MinecraftSetIpSubCommand = SlashCommandTools.subCommand('setip', 'Set the preferred Minecraft server IP address for this server')
+
+local MinecraftSetIpOptions = SlashCommandTools.string('ip', 'The IP address of the server')
+MinecraftSetIpOptions:setRequired(true)
+MinecraftSetIpSubCommand:addOption(MinecraftSetIpOptions)
+
+MinecraftMainCommand:addOption(MinecraftSetIpSubCommand)
+MinecraftMainCommand:addOption(MinecraftStatusSubCommand)
+
+local COLOURS = {
+	GREEN = 0x00ff00,
+	RED = 0xff0000
+}
+
+--initialize minecraft ip data
+local MinecraftDataFile = io.open('minecraft_data.json', 'r')
+if not MinecraftDataFile or (MinecraftDataFile and MinecraftDataFile:read('*a') == '') then
+	print('no such file exists! so make it')
+	io.open('minecraft_data.json', 'w+'):write(json.encode({})):close()
+end
+if MinecraftDataFile then
+	MinecraftDataFile:close()
+end
+
+local SubCommandCallbacks = {}
+local function Status(Interaction, Command, Args)
+	local GuildId = Interaction.guild and Interaction.guild.id
+	if not GuildId then
+		return Interaction:reply('You cannot use this command outside of a Discord server', true)
+	end
+
+	local GlobalMinecraftData = json.decode(io.open('minecraft_data.json', 'r'):read('*a'))
+	if not GlobalMinecraftData then
+		return Interaction:reply('Could not read server data', true)
+	end
+
+	local ServerMinecraftData = GlobalMinecraftData[GuildId]
+	if not ServerMinecraftData then
+		return Interaction:reply('There is no data for this Discord server', true)
+	end
+
+	local ServerIPStr = ServerMinecraftData.IP..':'..ServerMinecraftData.PORT
+	local Response, Headers = http_request('GET', ('https://api.mcsrvstat.us/3/%s'):format(ServerIPStr))
+
+	local IsOnline = Response.online
+	local EmbedData
+	if IsOnline then
+		local MaxPlayers = Response.players.max
+		local OnlinePlayers = Response.players.online
+		local AnonymousPlayers = OnlinePlayers
+		local Players = {}
+		if OnlinePlayers>0 then
+			for PlayerIndex, PlayerData in next, Response.players.list do
+				table.insert(Players, PlayerData.name)
+				AnonymousPlayers = AnonymousPlayers-1
+			end
+		else
+			table.insert(Players, 'No players online')
+		end
+		if AnonymousPlayers>0 then
+			for AnonymousPlayerIndex = 1, AnonymousPlayers do
+				table.insert(Players, 'Anonymous Player')
+			end
+		end
+		EmbedData = {
+	        title = 'Server Status for '..ServerIPStr,
+	        description = Response.motd.clean[1]..' ('..Response.version..')',
+	        fields = {
+	        	{name = 'Players', value = OnlinePlayers..'/'..MaxPlayers, inline = true},
+	        	{name = 'List of players', value = table.concat(Players, '\n'), inline = true}
+	        },
+	        color = COLOURS.GREEN
+	    }
+	else
+		EmbedData = {
+			title = 'Server Status for '..ServerIPStr,
+			description = 'Server is offline',
+			color = COLOURS.RED
+		}
+	end
+	return Interaction:reply({embed = EmbedData})
+end
+
+local function SetIp(Interaction, Command, Args)
+	local ServerIPStr = Args.ip
+
+	local GuildId = Interaction.guild and Interaction.guild.id
+	if not GuildId then
+		return Interaction:reply('You cannot use this command outside of a Discord server')
+	end
+
+	local ServerIP = ServerIPStr:match("(%d+%.%d+%.%d+%.%d+)") or ServerIPStr:match("(%w*%.?%w+%.%w+)")
+	if not ServerIP then
+		return Interaction:reply('Invalid server IP')
+	end
+	local ServerPort = ServerIPStr:match(ServerIP..':(%d+)') or 25565
+
+	local GuildMinecraftData = {IP = ServerIP, PORT = ServerPort}
+
+	local GlobalMinecraftData = json.decode(io.open('minecraft_data.json','r'):read('*a'))
+	GlobalMinecraftData[GuildId] = GuildMinecraftData
+	io.open('minecraft_data.json','w+'):write(json.encode(GlobalMinecraftData)):close()
+
+	return Interaction:reply('Successfully added `'..ServerIP..':'..ServerPort..'` for ServerId='..GuildId)
+end
+SubCommandCallbacks.status = Status
+SubCommandCallbacks.setip = SetIp
+
+
+
+local function Callback(Interaction, Command, Args)
+	local SubCommandOption = Command.options[1]
+	if SubCommandOption.type == ApplicationCommandOptionTypes.subCommand then
+		local SubCommandName = SubCommandOption.name
+		local SubCommandCallback = SubCommandCallbacks[SubCommandName]
+		local SubCommandArgs = Args[SubCommandName]
+		if SubCommandCallback then
+			SubCommandCallback(Interaction, Command, SubCommandArgs)
+		end
+	end
+
+end
+
+return {
+	Command = MinecraftMainCommand,
+	Callback = Callback
+}