rules.lua
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rules.lua
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	--[[
	mattata v2.0 - Rules Plugin
	]]

	local plugin = {}
	plugin.name = 'rules'
	plugin.category = 'admin'
	plugin.description = 'Display group rules'
	plugin.commands = { 'rules' }
	plugin.help = '/rules - Displays the group rules. Admins can set rules with /setrules <text>.'
	plugin.group_only = true
	plugin.admin_only = false

	function plugin.on_message(api, message, ctx)
	local tools = require('telegram-bot-lua.tools')
	local permissions = require('src.core.permissions')

	-- If /rules is used with args and user is admin, set rules
	if message.args and (ctx.is_admin or ctx.is_global_admin) then
	ctx.db.upsert('rules', {
	chat_id = message.chat.id,
	rules_text = message.args
	}, { 'chat_id' }, { 'rules_text' })
	return api.send_message(message.chat.id, 'The rules have been updated.')
	end

	-- Retrieve rules
	local result = ctx.db.execute(
	'SELECT rules_text FROM rules WHERE chat_id = $1',
	{ message.chat.id }
	)
	if not result or #result == 0 or not result[1].rules_text then
	return api.send_message(message.chat.id, 'No rules have been set for this group. An admin can set them with /rules <text>.')
	end

	local output = string.format(
	'<b>Rules for %s:</b>\n\n%s',
	tools.escape_html(message.chat.title or 'this chat'),
	result[1].rules_text
	)
	api.send_message(message.chat.id, output, 'html')
	end

	return plugin