Module:ProphecyCounter

A Lua script that automatically counts the number of available Eggs of Prophecy.

Usage

Parameters

• date is the release date of the most recent contract that contains a PE. This date should be in UTC.
• count is the total number of PEs that are available through contract, at the date of date.

Assumptions

The script assumes that a new contract with PE is released once every 3 weeks, on Mondays at 4pm UTC (or 8am Pacific Standard Time / 7am Pacific Daylight Time).

Methods

There are two methods available, contractPE returns the number of PEs available in contracts, and totalPE returns the total count, including those from daily gift calendar and trophies.

Examples

{{#invoke:ProphecyCounter|contractPE|date=2021-11-08|count=121}} returns 182.

{{#invoke:ProphecyCounter|totalPE|date=2021-11-08|count=121}} returns 246.

---

local invocable  = {}
local date = require("Dev:Date")

local WEEKS_BETWEEN_PE = 3
local NON_CONTRACT_PE_TOTAL = 64

function weeksSince(datestring)
	-- New contract is assumed to be released on 8am PST or 7am PDT.
	local past = date(datestring .. " 16:00Z") 

	local nowutc = date(true)

	return math.floor((nowutc-past):spandays() / 7)
end

function invocable.contractPE(frame)
	local count = frame.args["count"]
	local weeks =  weeksSince(frame.args["date"])
	return math.floor(weeks / WEEKS_BETWEEN_PE) + count
end

function invocable.totalPE(frame)
	return (invocable.contractPE(frame) + NON_CONTRACT_PE_TOTAL)
end

return invocable