yl_ticker/globalsteps.lua
2024-06-02 03:27:35 +02:00

89 lines
2.8 KiB
Lua

local function calculate_bucket(bucket, data) -- This is per bucket
if type(bucket) ~= "number" then bucket = tonumber(bucket) end
local affected_tickers = {}
for _, ticker in ipairs(data) do
if ticker.frequency == bucket then
table.insert(affected_tickers, ticker)
end
end
-- Prevent division by 0
if (#affected_tickers == 0) then
-- We should never reach this code. If there are members of the bucket,
-- then there must be affected ticker.
minetest.log("error",
"[yl_ticker] globalstep division by zero, no members of bucket = " ..
dump(bucket))
return
end
-- Let's calculate the distance
local distance = bucket / #affected_tickers
local n = 0
for _, ticker in ipairs(affected_tickers) do
ticker._next_runtime = os.time() + n * distance
n = n + 1
end
end
local delta = 1
local timer = 0
local gs = function(dtime)
timer = timer + dtime
if timer <= delta then return end
timer = timer - delta
-- payload
local success, data = yl_ticker.list()
if ((success == false) or (data == nil)) then
return false, "Could not retrieve list"
end
local current_time = os.time()
local affected_bucket = {}
-- Check if any ticker should be displayed
for _, ticker in pairs(data) do
-- Check if any ticker needs to be removed from the list due to runtime expired.
if ((type(ticker.runtime) == "number") and
(current_time >= (ticker.creation_date + ticker.runtime))) then
yl_ticker.delete(ticker.id)
elseif current_time >= (ticker._next_runtime or 0) then
if (type(ticker._next_runtime) ~= "number") then
table.insert(affected_bucket, ticker.frequency)
else
local a_success, message =
yl_ticker.say(ticker.id, "*")
if (a_success == false) then
minetest.log("error",
"[yl_ticker] globalstep cannot send to target, message = " ..
dump(message) .. " : ticker = " ..
dump(ticker))
return
end
ticker._next_runtime =
ticker._next_runtime +
(ticker.frequency or 3600)
end
yl_ticker.log(os.date("!%H:%M:%S", os.time()) .. "=" ..
tostring(ticker.id))
end
end
-- If there were any tickers that had no _next_runtime, then we need to recalculate their bucket
for _, bucket in ipairs(affected_bucket) do
calculate_bucket(bucket, data)
end
end
minetest.register_globalstep(gs)