Module:ExchangeShop
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Documentation for this module may be created at Module:ExchangeShop/doc
--[[
{{Helper module|name=Exchange
|fname1=_price(arg)
|ftype1=String
|fuse1=Gets the current median price of item named arg
|fname2=_value(arg)
|ftype2=String
|fuse2=Gets the value of item named arg
}}
--]]
-- <nowiki>
--
-- Implements various exchange templates
-- See Individual method docs for more details
--
-- See also:
-- - [[Module:ExchangeData]]
-- - [[Module:ExchangeDefault]]
--
-- Original version: http://runescape.wiki/w/Module:Exchange
local p = {}
-- only load commonly used modules here
local yesno = require( 'Module:Yesno' )
local addcommas = require( 'Module:Addcommas' )._add
--
-- Makes sure first letter of item is uppercase
-- Automatically handles any redirects
--
function p.checkTitle( item )
-- upper case first letter to make sure we can find a valid item page
item = mw.ustring.gsub( item, '�?39;', "'" )
item = mw.ustring.gsub( item, '�?38;', "&" )
item = mw.ustring.gsub( item, '_', ' ' )
item = mw.ustring.gsub( item, ' +', ' ' )
item = item:sub(1, 1):upper() .. item:sub(2, -1)
return item
end
--
-- Simple mw.loadData wrapper used to access data located on module subpages
--
-- @param item {string} Item to retrieve data for
-- @param suppress_err {boolean} (optional) If true and item data can not be loaded, return nil instead of error()
-- @return {table} Table of item data
--
local function load( item, suppress_err )
item = p.checkTitle( item )
local noErr, ret = pcall( mw.loadData, 'Module:Exchange/' .. item )
if noErr then
return ret
elseif suppress_err then
return nil
end
error( ret )
end
local data_module_names = {
price = 'Module:ShopPrices/data.json',
volume = 'Module:GEVolumes/data.json',
lastPrice = 'Module:LastPrices/data.json'
}
local data_historical_keys = {
price = 'price',
lastPrice = 'last',
limit = 'limit'
}
local loaded_data_modules = {}
function p.loadBulkData( key, data_type, suppress_err )
local module_name = data_module_names[data_type]
if loaded_data_modules[module_name] == nil then
loaded_data_modules[module_name] = mw.loadJsonData(module_name)
end
if key ~= '%LAST_UPDATE_F%' then
key = p.checkTitle( key )
end
if loaded_data_modules[module_name][key] then
return loaded_data_modules[module_name][key]
end
if not data_historical_keys[data_type] then
return nil
end
local exchange_data = load(key, true)
if exchange_data and exchange_data.historical then
return exchange_data[data_historical_keys[data_type]]
end
if suppress_err then
return nil
end
error('price not found for ' .. key)
end
--
-- Returns the price of an item
--
-- @param item {string} Item to get current price of
-- @param multi {number} (optional) Multiplies the output price by the specified number
-- @param format {boolean} (optional) Format the result with commas (defaults to false)
-- @param round {number} (optional) Round the result to a number of decimal places
-- @param default Any non-nil value to return as the price if item's data can not be found.
-- @return {number|string} Price of item. Will return a string if formatted, else a number.
--
function p._price( item, multi, format, round, default )
local price = p.loadBulkData( item, 'price', default ~= nil )
local multi = type( multi ) == 'number' and multi or 1
local format = type( format ) == 'boolean' and format or false
local ret
if price then
ret = price * multi
-- round the number to X d.p.
if round ~= nil then
local multi = 10^( round )
ret = math.floor( ret * multi + 0.5 ) / multi
end
if format then
return addcommas( ret )
end
return ret
else
return default
end
end
--
-- Returns the limit of an item
--
-- @param item {string} Item to get the limit of
-- @return {number} Limit of item
--
function p._limit( item )
return load( item ).limit
end
--
-- Returns the volume of an item
--
-- @param item {string} Item to get the limit of
-- @return {number} Volume of item
--
function p._volume( item )
return p.loadBulkData(item, 'volume')
end
--
-- Returns the value of an item
--
-- @param item {string} Item to get the value for
-- @return {number} Value of item
--
function p._value( item )
return load( item ).value
end
--
-- Returns the itemId of an item
--
-- @param item {string} Item to get the itemId for
-- @return {number} itemId of item
--
function p._itemId( item )
return load( item ).itemId
end
--
-- Returns the alchability of an item
--
-- @param item {string} Item to get the alchability of
-- @return {boolean} Alchability
--
function p._alchable( item )
local a = load( item ).alchable
if a == nil or a == true then
return true
elseif a == false then
return false
end
return nil
end
--
-- Returns the alch multiplier of an item
--
-- @param item {string} Item to get the multiplier or
-- @return {number} Multiplier
--
function p._alchmultiplier( item )
local a = load( item ).alchmultiplier
if type(a) == 'number' then
return a
end
return 0.6
end
--
-- Internal function for alch values
--
-- @param item {string} Item to get the high alch for
-- @param item {string} Alchemy multiplier
-- @return {number} Alch value of item
--
function alchval(item, mul)
if p._alchable(item) then
local v = p._value(item)
local m = p._alchmultiplier(item)
if v then
return math.floor(v * m * mul)
end
end
return -1
end
--
-- Returns the high alch value of an item
--
-- @param item {string} Item to get the high alch for
-- @return {number} High alch of item
--
function p._highalch( item )
return alchval(item, 1)
end
--
-- Returns the low alch value of an item
--
-- @param item {string} Item to get the low alch for
-- @return {number} Low alch of item
--
function p._lowalch( item )
return alchval(item, 2/3)
end
--
-- Calculates the difference between the current price and the last price of an item
--
-- @param item {string} Item to calculate price difference for
-- @param format {boolean} `true` if the output is to be formatted with commas
-- Defaults to `false`
-- @return {number|string} The price difference as a number
-- If `format` is set to `true` then this returns a string
-- If either of the prices to calculate the diff from are unavailable, this returns `0` (number)
--
function p._diff( item, format )
local diff = 0
local price = p.loadBulkData(item, 'price')
local lastPrice = p.loadBulkData(item, 'lastPrice')
if price and lastPrice then
diff = price - lastPrice
if format then
diff = addcommas( diff )
end
end
return diff
end
--
-- {{GEItem}} internal method
--
-- @todo merge into p.table
--
-- @param item {string} Item to get data for
-- @return {string}
--
function p._table( item )
-- load data and any required modules
local item = p.checkTitle( item )
local data = load( item )
local bulkData = {
price = p.loadBulkData(item, 'price'),
date = p.loadBulkData('%LAST_UPDATE_F%', 'price'),
last = p.loadBulkData(item, 'lastPrice'),
lastDate = p.loadBulkData('%LAST_UPDATE_F%', 'lastPrice'),
volume = p.loadBulkData(item, 'volume'),
}
local timeago = require( 'Module:TimeAgo' )._ago
local changeperday = require( 'Module:ChangePerDay' )._change
local coins = require( 'Module:Coins' )._amount
-- set variables here to make the row building easier to follow
local div = '<i>Unknown</i>'
local limit = data.limit and addcommas( data.limit ) or '<i>Unknown</i>'
local volume = bulkData.volume and addcommas( bulkData.volume ) or '<i>Unknown</i>'
local members = '<i>Unknown</i>'
if bulkData.last then
local link = 'http://services.runescape.com/m=itemdb_oldschool/viewitem.ws?obj=' .. data.itemId
local change = math.abs( changeperday( {bulkData.price, bulkData.last, bulkData.date, bulkData.lastDate} ) )
if bulkData.price > bulkData.last then
arrow = '[[File:Up.svg|20px|link=' .. link .. ']]'
elseif bulkData.price < bulkData.last then
arrow = '[[File:Down.svg|20px|link=' .. link .. ']]'
else
arrow = '[[File:Unchanged.svg|40px|link=' .. link .. ']]'
end
if change >= 0.04 then
arrow = arrow .. arrow .. arrow
elseif change >= 0.02 then
arrow = arrow .. arrow
end
div = mw.html.create( 'div' )
:css( 'white-space', 'nowrap' )
:wikitext( arrow )
div = tostring( div )
end
if data.members == true then
members = '[[File:Member icon.png|link=Members]]'
elseif data.members == false then
members = '[[File:Free-to-play icon.png|link=Free-to-play]]'
end
-- build table row
local tr = mw.html.create( 'tr' )
:tag( 'td' )
:addClass( 'inventory-image' )
:wikitext( '[[File:' .. item .. '.png|' .. item .. ']]' )
:done()
:tag( 'td' )
:css( {
['width'] = '15%',
['text-align'] = 'left'
} )
:wikitext( '[[' .. item .. ']]' )
:done()
:tag( 'td' )
:wikitext( coins( bulkData.price ) )
:done()
:tag( 'td' )
:wikitext( div )
:done()
if data.alchable == nil or yesno( data.alchable ) then
local low, high = '<i>Unknown</i>', '<i>Unknown</i>'
if data.value then
low = coins( p._lowalch(item) )
high = coins( p._highalch(item) )
end
tr
:tag( 'td' )
:wikitext( low )
:done()
:tag( 'td' )
:wikitext( high )
:done()
else
tr
:tag( 'td' )
:attr( 'colspan', '2' )
:wikitext( '<i>Cannot be alchemised</i>' )
:done()
end
tr
:tag( 'td' )
:wikitext( limit )
:done()
:tag( 'td' )
:wikitext( volume )
:done()
:tag( 'td' )
:wikitext( members )
:done()
:tag( 'td' )
:css( 'white-space', 'nowrap' )
:wikitext( '[[Exchange:' .. item .. '|view]]' )
:done()
:tag( 'td' )
:css( 'font-size', '85%' )
:wikitext( timeago{bulkData.date} )
:done()
return tostring( tr )
end
--
-- {{GEExists}}
--
function p.exists( frame )
local args = frame:getParent().args
local item = p.checkTitle( args[1] or '' )
local noErr, data = pcall( mw.loadData, 'Module:Exchange/' .. item )
if noErr then
return '1'
end
return '0'
end
--
-- GEExists for modules
--
function p._exists( arg )
local item = p.checkTitle( arg or '' )
local noErr, data = pcall( mw.loadData, 'Module:Exchange/' .. item )
if noErr then
return true
end
return false
end
--
-- {{GEP}}
-- {{GEPrice}}
--
-- @example {{GEPrice|<item>|<format>|<multi>}}
-- @example {{GEPrice|<item>|<multi>}}
-- @example {{GEP|<item>|<multi>}}
--
function p.price( frame )
-- usage: {{foo|item|format|multi}} or {{foo|item|multi}}
local args = frame.args
local pargs = frame:getParent().args
local item = pargs[1]
local expr = mw.ext.ParserFunctions.expr
local round = tonumber( pargs.round )
if item then
item = mw.text.trim( item )
else
error( '"item" argument not specified', 0 )
end
-- default to formatted for backwards compatibility with old GE templates
local format = true
local multi = 1
-- format is set with #invoke
-- so set it first to allow it to be overridden by template args
if args.format ~= nil then
format = yesno( args.format )
end
if tonumber( pargs[2] ) ~= nil then
multi = tonumber( pargs[2] )
-- indicated someone is trying to pass an equation as a mulitplier
-- known use cases are fractions, but pass it to #expr to make sure it's handled correctly
elseif pargs[2] ~= nil and mw.ustring.find( pargs[2], '[/*+-]' ) then
multi = tonumber( expr( pargs[2] ) )
end
return p._price( item, multi, format, round, pargs.dflt )
end
--
-- {{GEItem}}
--
-- @example {{GEItem|<item>}}
--
function p.table( frame )
local args = frame:getParent().args
local item = args[1]
if item then
item = mw.text.trim( item )
else
error( '"item" argument not specified', 0 )
end
return p._table( item )
end
--
-- experimental limit method for [[Grand Exchange/Buying Limits]]
--
function p.gemwlimit( frame )
local item = frame:getParent().args[1]
local data = mw.loadData( 'Module:Exchange/' .. item )
return data.limit
end
--
-- {{ExchangeItem}}
-- {{GEDiff}}
-- {{GELimit}}
-- {{ItemValue}}
-- {{GEId}}
--
-- @example {{ExchangeItem|<item>}}
-- @example {{GEDiff|<item>}}
-- @example {{GELimit|<item>}}
-- @example {{ItemValue|<item>}}
-- @example {{GEId|<item>}}
--
function p.view( frame )
local fargs = frame.args
local pargs = frame:getParent().args
local item = pargs[1] or fargs.item
local view = fargs.view or ''
local loadView = {
itemId=true, price=true, last=true, volume=true, value=true, limit=true, members=true,
date=true, lastDate=true, volumeDate=true, icon=true, item=true, examine=true
}
if item then
item = mw.text.trim( item )
else
error( '"item" argument not specified', 0 )
end
view = mw.ustring.lower( view )
if view == 'itemid' then
view = 'itemId'
end
if view == 'volume' then
return p._volume(item)
end
if view == 'diff' then
return p._diff( item )
elseif view == 'hialch' or view == 'highalch' or view == 'high_alch' or view == 'high alch' then
return p._highalch(item)
elseif view == 'lowalch' or view == 'low_alch' or view == 'low alch' then
return p._lowalch(item)
elseif view == 'members' then
if load( item )[view] then return 1 else return 0 end
elseif loadView[view] then
return load( item )[view]
end
end
return p
-- </nowiki>