Module:Quantity

From MaRDI portal

Documentation for this module may be created at Module:Quantity/doc

-- Required modules for SPARQL queries and HTML table generation
-- Module for executing SPARQL queries
local sparql = require('SPARQL')
-- MediaWiki library for logging and utilities
local mw = require('mw')
local json = require("mw.text") 

-- Main table to hold all functions
local p = {}


-- Function to get defining formulation with Quantities 
function p.extractDefiningFormulationWithQuantities(frame)
	
	local equation = mw.wikibase.getEntity()
	local equationID = entity and entity.id or nil
	
	-- Table to store formulations
    local formulations = {}
    -- Table to store quantity symbol and name id 
    local quantitySymbolNameIdPairs = {}
    
  
	-- P989 refers to property defining formula 
	local definingFormula = equation:getBestStatements('P989')
	if definingFormula and #definingFormula > 0 then
    	local value = definingFormula[1].mainsnak.datavalue.value
    	mathTag = frame:extensionTag{
	    	name = "math",
	        content = value
        }
	   table.insert(formulations, "| Defining Formula: " .. mathTag)
	end
   
    
    quantitySymbolNameIdPairs = p.extractQuantities(equationID)
    if type(quantitySymbolNameIdPairs) == "table" then
    	-- Accessing the stored pairs
		for i, pair in ipairs(quantitySymbolNameIdPairs) do
			local pairFirstValue = pair[1]
			local pairFirstValue = mw.text.decode(pairFirstValue or "")
			local quantitySymbolMathTag = frame:extensionTag{
				  name = "math",
            	  content = pairFirstValue
        		  }
        	-- Construct the Portal URL
        	local quantityId = pair[3]
        	local numericId = quantityId:sub(2)  -- remove "Q" to get "6674540"
        	local url = "https://portal.mardi4nfdi.de/wiki/Quantity:"
        	local fullUrl = url .. numericId
        	local labelWithUrl = string.format('[%s %s]', tostring(fullUrl), tostring(pair[2]))
        	
            table.insert(formulations, "| " .. quantitySymbolMathTag   ..  " symbol represents "  .. labelWithUrl)
		end
		table.insert(formulations, "| " .. " " )
	else
		-- Error: extractQuantities did not return a table"
	end

		-- Construct the Wikitext table
    	local wikitextTable = [[
{| class="wikitable" style="table-layout: fixed; width: 1000px;"
]] .. table.concat(formulations, "\n|-\n") .. "\n|}"
    	return wikitextTable
  end

function p.extractQuantities(qid)
	-- Property ID for in defining formula 
    local pidInDefiningFormula  = "P983"
    -- Property ID for the (qualifier) symbol represents
    local pidSymbolRepresents = "P984"   

    -- Attempt to retrieve entity data
    local entity = mw.wikibase.getEntity(qid)
    if not entity or not entity.claims[pidInDefiningFormula] then
        return "No formulation found"
    end
    
    
    local inDefiningFormulaClaims = entity.claims[pidInDefiningFormula]
    local count = 0
    -- Table to store pairs of quantity symbol and quantity name
    local quantitySymbolNameIdPairs = {}
	for _ in pairs(inDefiningFormulaClaims or {}) do
    	count = count + 1
    	-- Get the quantity symbol
    	local quantitySymbol = inDefiningFormulaClaims[count].mainsnak.datavalue.value
    	if not quantitySymbol then
        	return "No valid symbol found"
    	end
    	quantity = inDefiningFormulaClaims[count].qualifiers[pidSymbolRepresents][1].datavalue.value.text
        quantityId = inDefiningFormulaClaims[count].qualifiers[pidSymbolRepresents][1].datavalue.value.id
	    local quantityName = mw.wikibase.label(quantityId)
	    -- Insert pair into the table
	    table.insert(quantitySymbolNameIdPairs, {quantitySymbol, quantityName, quantityId})
    end
    return quantitySymbolNameIdPairs
end

function p.getImageWithLegend(frame)
	-- Property ID for the image
    local pidImage  = "P356" 
    -- Property ID for the (qualifier) media legend
    local pidMediaLegend = "P401"   
    local defaultLegend = "No legend available."

   	
	local entityId = frame.args[1]
    
    -- Validate input parameter
    if not entityId or entityId == '' then
        return "Error: No entity ID provided"
    end
    
    -- Attempt to retrieve entity data
    local entity = mw.wikibase.getEntity(entityId)
    local imageClaims = entity.claims[pidImage]
    local imageStrings = {}
	if imageClaims and type(imageClaims) == "table" then
    	local numClaims = #imageClaims
    	-- Loop through the image claims
		for index = 1, numClaims  do
			-- Extract the image filename
    		local imageFilename = imageClaims[index].mainsnak.datavalue.value
			local imageLegend = imageClaims[index].qualifiers[pidMediaLegend][1].datavalue.value.text
			-- Add this image line to the list
        	 table.insert(imageStrings, string.format("[[File:%s|thumb|380px|%s]]", imageFilename, imageLegend))
        
        	if index < numClaims then
        		-- spacer column
        		table.insert(imageStrings, '&nbsp;')  
    end
		end    
		-- Combine all image cells into one row of a wikitable
		local imageTable = '{| class="wikitable"\n| ' .. table.concat(imageStrings, ' || ') .. '\n|}'
		return imageTable .. "\n\n"
	else
    	return " " 
	end

end


function p.getVideoWithLegend(frame)
	-- Property ID for the video
    local pidVideo  = "P797" 
    -- Property ID for the (qualifier) media legend
    local pidMediaLegend = "P401"   
    local defaultLegend = "No legend available."

   	
	local entityId = frame.args[1]
    
    -- Validate input parameter
    if not entityId or entityId == '' then
        return "Error: No entity ID provided"
    end
    
    -- Attempt to retrieve entity data
    local entity = mw.wikibase.getEntity(entityId)
    local videoClaims = entity.claims[pidVideo]
    local videoStrings = {}
	if videoClaims and type(videoClaims) == "table" then
    	local numClaims = #videoClaims
    	-- Loop through the image claims
		for index = 1, numClaims  do
			-- Extract the image filename
    		local videoFilename = videoClaims[index].mainsnak.datavalue.value
			local videoLegend = videoClaims[index].qualifiers[pidMediaLegend][1].datavalue.value.text
			-- Add this image line to the list
        	 table.insert(videoStrings, string.format("[[File:%s|thumb|340px|%s]]", videoFilename, videoLegend))
        
        	if index < numClaims then
        		-- spacer column
        		table.insert(videoStrings, '&nbsp;')  
    end
		end    
		-- Combine all image cells into one row of a wikitable
		local videoTable = '{| class="wikitable"\n| ' .. table.concat(videoStrings, ' || ') .. '\n|}'
		return videoTable .. "\n\n"
	else
    	return " " 
	end

end


-- Function to get specialized quantities
function p.getSpecializedQuantities(frame)
	local entityId = frame.args[1]
    
    -- Validate input parameter
    if not entityId or entityId == '' then
        return "Error: No entity ID provided"
    end
    
    -- Constructing the SPARQL query with dynamic entity entityId
    -- P1684: specialized by property id
    local sparqlQuery = [[
PREFIX entityId: <https://portal.mardi4nfdi.de/entity/]] .. entityId .. [[>
	SELECT ?URL ?Label  
	WHERE {
		entityId: wdt:P1684 ?URL.
		?URL rdfs:label ?Label
	}
	]]

	-- Executing the SPARQL query and retrieving results in JSON format
	local jsonResults = sparql.runQuery(sparqlQuery)
	-- Validate results
	if not jsonResults or not jsonResults.results or not jsonResults.results.bindings then
       	return "No specialized research fields found"
    end
	
	local specializedQuantities = {}
    -- Get the number of specialized research fields
	local totalQuantities = #jsonResults.results.bindings
	-- Loop through the bindings
	for index = 0, totalQuantities  do
    	local item = jsonResults.results.bindings[index]
    	if not item.Label.value then
        	return "Error: Missing item.Label.value"
    	elseif not item.URL.value then
        	return "Error: Missing item.URL.value"
    	else
    		local label = item.Label.value
        	local url = item.URL.value
        	local numericId = url:match("Q(%d+)")
        	local urlRendered = "https://portal.mardi4nfdi.de/wiki/Quantity:" .. numericId
        	local labelWithUrl = string.format('[%s %s]', tostring(urlRendered), tostring(label))
        	table.insert(specializedQuantities, "| " .. labelWithUrl)
    	end
	end

	-- Construct the Wikitext table
	local wikitextTable = "{| class='wikitable'\n" .. table.concat(specializedQuantities, "\n|-\n") .. "\n|}"
	return wikitextTable

end

return p