This repository has been archived on 2021-04-24. You can view files and clone it, but cannot push or open issues or pull requests.
Mikubot-2/bot.lua
2016-06-06 20:22:58 -07:00

131 lines
3.9 KiB
Lua
Executable File

local bot = {}
-- Requires are moved to init to allow for reloads.
local bindings -- Load Telegram bindings.
local utilities -- Load miscellaneous and cross-plugin functions.
bot.version = '3.8'
function bot:init(config) -- The function run when the bot is started or reloaded.
bindings = require('bindings')
utilities = require('utilities')
assert(
config.bot_api_key and config.bot_api_key ~= '',
'You did not set your bot token in the config!'
)
self.BASE_URL = 'https://api.telegram.org/bot' .. config.bot_api_key .. '/'
-- Fetch bot information. Try until it succeeds.
repeat
print('Fetching bot information...')
self.info = bindings.getMe(self)
until self.info
self.info = self.info.result
-- Load the "database"! ;)
if not self.database then
self.database = utilities.load_data(self.info.username..'.db')
end
self.database.users = self.database.users or {} -- Table to cache userdata.
self.database.users[tostring(self.info.id)] = self.info
self.plugins = {} -- Load plugins.
for _,v in ipairs(config.plugins) do
local p = require('plugins.'..v)
table.insert(self.plugins, p)
if p.init then p.init(self, config) end
end
print('@' .. self.info.username .. ', AKA ' .. self.info.first_name ..' ('..self.info.id..')')
self.last_update = self.last_update or 0 -- Set loop variables: Update offset,
self.last_cron = self.last_cron or os.date('%M') -- the time of the last cron job,
self.is_started = true -- and whether or not the bot should be running.
end
function bot:on_msg_receive(msg, config) -- The fn run whenever a message is received.
-- Cache user info for those involved.
utilities.create_user_entry(self, msg.from)
if msg.forward_from and msg.forward_from.id ~= msg.from.id then
utilities.create_user_entry(self, msg.forward_from)
elseif msg.reply_to_message and msg.reply_to_message.from.id ~= msg.from.id then
utilities.create_user_entry(self, msg.reply_to_message.from)
end
if msg.date < os.time() - 5 then return end -- Do not process old messages.
msg = utilities.enrich_message(msg)
if msg.text:match('^'..config.cmd_pat..'start .+') then
msg.text = config.cmd_pat .. utilities.input(msg.text)
msg.text_lower = msg.text:lower()
end
for _,v in ipairs(self.plugins) do
for _,w in pairs(v.triggers) do
if string.match(msg.text_lower, w) then
local success, result = pcall(function()
return v.action(self, msg, config)
end)
if not success then
utilities.send_reply(self, msg, 'Sorry, an unexpected error occurred.')
utilities.handle_exception(self, result, msg.from.id .. ': ' .. msg.text, config)
return
end
-- If the action returns a table, make that table the new msg.
if type(result) == 'table' then
msg = result
-- If the action returns true, continue.
elseif result ~= true then
return
end
end
end
end
end
function bot:run(config)
bot.init(self, config) -- Actually start the script.
while self.is_started do -- Start a loop while the bot should be running.
local res = bindings.getUpdates(self, { timeout=20, offset = self.last_update+1 } )
if res then
for _,v in ipairs(res.result) do -- Go through every new message.
self.last_update = v.update_id
if v.message then
bot.on_msg_receive(self, v.message, config)
end
end
else
print('Connection error while fetching updates.')
end
if self.last_cron ~= os.date('%M') then -- Run cron jobs every minute.
self.last_cron = os.date('%M')
utilities.save_data(self.info.username..'.db', self.database) -- Save the database.
for i,v in ipairs(self.plugins) do
if v.cron then -- Call each plugin's cron function, if it has one.
local result, err = pcall(function() v.cron(self, config) end)
if not result then
utilities.handle_exception(self, err, 'CRON: ' .. i, config)
end
end
end
end
end
-- Save the database before exiting.
utilities.save_data(self.info.username..'.db', self.database)
print('Halted.')
end
return bot