Module:Sandbox/Yurik: Difference between revisions

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local p = {}
local getArgs = require('Module:Arguments').getArgs
local datePattern = "^(%d+)-(%d+)-(%d+)$"
local weatherTemplate = 'Template:Weather box'
local wrapsTemplate = 'User:Yurik/Weather box'

function p.weatherbox( frame )
    local args = getArgs(frame, { wrappers = wrapsTemplate })
    local dataPage = assert(args.data, 'Missing "data" parameter')
    args.data = nil

    local monthlyHigh, monthlyLow = {}, {}
    local highSum, highCount = {}, {}
    local lowSum, lowCount = {}, {}
    local avgHighSum, avgHighCount = {}, {}
    local avgLowSum, avgLowCount = {}, {}
    local precipSum, precipCount = {}, {}
    local snowfallSum, snowfallCount = {}, {}
    local precipDaysSum, precipDaysCount = {}, {}
    local snowfallDaysSum, snowfallDaysCount = {}, {}

    for key, row in pairs(mw.ext.data.get(dataPage).data) do
        -- First column is in [0], not [1], needs special handling
        local date = row[0]
        local highTemp, avgHighTemp, avgLowTemp, lowTemp, precip, snowfall, precipDays, snowfallDays = unpack(row)

        local year, month, day = date:match(datePattern)
        month = tonumber(month)

        if highTemp > -999 and (monthlyHigh[month] == nil or monthlyHigh[month] < highTemp) then monthlyHigh[month] = highTemp end
        if lowTemp > -999 and (monthlyLow[month] == nil or monthlyLow[month] > lowTemp) then monthlyLow[month] = lowTemp end
        recordAvg(highSum, highCount, month, highTemp)
        recordAvg(lowSum, lowCount, month, lowTemp)
        recordAvg(avgHighSum, avgHighCount, month, avgHighTemp)
        recordAvg(avgLowSum, avgLowCount, month, avgLowTemp)
        recordAvg(precipSum, precipCount, month, precip)
        recordAvg(snowfallSum, snowfallCount, month, snowfall)
        recordAvg(precipDaysSum, precipDaysCount, month, precipDays)
        recordAvg(snowfallDaysSum, snowfallDaysCount, month, snowfallDays)
    end

    local months = {'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'}
    for i=1, 12 do args[months[i] .. ' record high F'] = monthlyHigh[i] end
    for i=1, 12 do args[months[i] .. ' record low F'] = monthlyLow[i] end
    for i=1, 12 do args[months[i] .. ' avg record high F'] = string.format("%.1f", highSum[i] / highCount[i]) end
    for i=1, 12 do args[months[i] .. ' avg record low F'] = string.format("%.1f", lowSum[i] / lowCount[i]) end
    for i=1, 12 do args[months[i] .. ' high F'] = string.format("%.1f", avgHighSum[i] / avgHighCount[i]) end
    for i=1, 12 do args[months[i] .. ' low F'] = string.format("%.1f", avgLowSum[i] / avgLowCount[i]) end
    for i=1, 12 do args[months[i] .. ' precipitation inch'] = string.format("%.1f", precipSum[i] / precipCount[i]) end
    for i=1, 12 do args[months[i] .. ' snow inch'] = string.format("%.1f", snowfallSum[i] / snowfallCount[i]) end
    for i=1, 12 do args[months[i] .. ' precipitation days'] = string.format("%.1f", precipDaysSum[i] / precipDaysCount[i]) end
    for i=1, 12 do args[months[i] .. ' snow days'] = string.format("%.1f", snowfallDaysSum[i] / snowfallDaysCount[i]) end

    return frame:expandTemplate{ title = weatherTemplate, args = args }
end

function recordAvg(sumTbl, countTbl, month, value)
    if value > -999 then
        sumTbl[month] = (sumTbl[month] or 0) + value
        countTbl[month] = (countTbl[month] or 0) + 1
    end
end

return p