Module:Wikidata/Rècup

La documentation pour ce module peut être créée à Module:Wikidata/Rècup/doc

local p = {}
local datequalifiers = {'P585', 'P571', 'P580', 'P582'}
local tools = require "Module:Wikidata/Outils"
local datemod = require "Module:Dâta complèxa"

local function notSpecial(claim)
	return tools.isValue(claim.mainsnak)
end

local function hastargetvalue(claim, targets) -- retôrne true se la valor est dens la lista des target, ou ben s’o est na valor spèciâla (filtrâye a pârt per excludespecial)
	local id = tools.getMainId(claim)
	local targets = tools.splitStr(targets)
	return tools.isHere(targets, id) or tools.isSpecial(claim.mainsnak)
end

local function excludevalues(claim, values) -- true se la valor est pas dens la lista, ou ben s’o est na valor spèciâla (filtrâye a pârt per excludespecial)
	return tools.isSpecial(claim.mainsnak) or not ( hastargetvalue(claim, values) )
end

local function bestranked(claims)
	if not claims then
		return nil
	end
	local preferred, normal = {}, {}
	for i, j in pairs(claims) do
		if j.rank == 'preferred' then
			table.insert(preferred, j)
		elseif j.rank == 'normal' then
			table.insert(normal, j)
		end
	end
	if #preferred > 0 then
		return preferred
	else
		return normal
	end
end

local function withrank(claims, target)
	if target == 'best' then
		return bestranked(claims)
	end
	local newclaims = {}
	for pos, claim in pairs(claims)  do
		if target == 'valid' then
			if claim.rank ~= 'deprecated' then
				table.insert(newclaims, claim)
			end
		elseif claim.rank == target then
			table.insert(newclaims, claim)
		end
	end
	return newclaims
end

local function hasqualifier(claim, acceptedqualifs, acceptedvals, excludequalifiervalues)
	local claimqualifs = claim.qualifiers
	
	if (not claimqualifs) then
		return false
	end

	acceptedqualifs = tools.splitStr(acceptedqualifs)
	acceptedvals = tools.splitStr( acceptedvals)


	local function ok(qualif) -- contrôlo por un qualificatif endividuèl
		if not claimqualifs[qualif] then
			return false
		end
		if not (acceptedvals) then  -- se niona valor spècifica est demandâye, OK
			return true
		end
		for i, wanted in pairs(acceptedvals) do
			for j, actual in pairs(claimqualifs[qualif]) do
				if tools.getId(actual) == wanted then
					return true
				end
			end
		end
	end

	for i, qualif in pairs(acceptedqualifs) do
		if ok(qualif) then
			return true
		end
	end
	return false
 end

local function hassource(claim, targetsource, sourceproperty)
	sourceproperty = sourceproperty or 'P248'
	if not claim.references or not claim.references[sourceproperty] then
		return false
	end
	if not targetsource then -- se totes les sôrses sont justes, du moment qu’emplèyont sourceproperty
		return true
	end
	targetsource = tools.splitStr(targetsource)
	for _, source in pairs(claim.references[sourceproperty]) do
		local s = tools.getId(source)
		for i, target in pairs(targetsource) do
			if s == target then return true end
		end
	end
	return true
end

local function excludequalifier(claim, qualifier, qualifiervalues)
	return not hasqualifier(claim, qualifier, qualifiervalues)
end


local function hasdate(claim)
	local claimqualifs = claims.qualifiers
	if not claimqualifs then
		return false
	end
	for _, qualif in pairs(claimqualifs) do
		if claimsqualifs[qualif] and claimsqualifs[qualif][1].snaktype == 'value' then
			return true
		end
	end
	return false
end

local function haslink(claim, site, lang)
	if not(tools.isValue(claim.mainsnak)) then -- pas enlevar les valors spèciâles, y at na fonccion consacrâye por cen
		return true
	end
	local id = tools.getMainId(claim)
	local link = tools.siteLink(id, site, lang)
	if link then
		return true
	end
end

local function isinlanguage(claim, lang) -- fonccione ren que por los monolingualtext / ètendre ux ôtros tipos en empleyent los qualifiers ?
	local snak = claim.mainsnak
	if tools.isSpecial(snak) then
		return false
	end
	if snak.datavalue.type == 'monolingualtext' and snak.datavalue.value.language == lang then
		return true
	end
	return false
end

local function firstvals(claims, numval) -- retôrne les numval premiéres valors de la table claims
    local numval = tonumber(numval) or 0 -- raise a error if numval is not a positive integer ?
    if not claims then
    	return nil
    end
    while (#claims > numval) do
    	table.remove(claims)
    end
    return claims
end

local function valinQualif(claim, qualifs)
	local claimqualifs = claim.qualifiers
	if not claimqualifs then
		return nil
	end
	for i, qualif in pairs(qualifs) do
		local vals = claimqualifs[qualif]
		if vals and tools.isValue(vals[1]) then
			return tools.getValue(vals[1]).time
		end
	end
end

local function chronosort(claims, inverted)
	table.sort(
		claims,
		function(a,b)
			local timeA = valinQualif(a, datequalifiers) or ''
			local timeB = valinQualif(b, datequalifiers) or ''
			if inverted then
				return timeA > timeB -- mârche solament por les dâtes < 10 000 dev-JC empleyér datemod.before fât na cofieria
			else
				return timeB > timeA
			end
		end
	)
	return claims
end

local function atDate(claim, mydate)
	local newclaims = {}
	local mindate = valinQualif(claim, {'P580'}) 
	local maxdate = valinQualif(claim, {'P582'})
	if datemod.before(mydate, mindate) and datemod.before(maxdate, mydate) then
		return true
	end
end

local function check(claim, condition)
	if type(condition) == 'function' then -- câs standârd
		return condition(claim)
	end
	local msg = "args.condition should be a function"
	return error(msg)
end

function p.sortclaims(claims, sorttype)
	if not claims then
		return nil
	end
	if sorttype == 'chronological' then
		return chronosort(claims)
	elseif sorttype == 'inverted' then
		return chronosort(claims, true)
	elseif type(sorttype) == 'function' then
		table.sort(claims, sorttype)
		return claims
	end
	return claims
end


function p.filterClaims(claims, args) --enléve de la table de claims celes que sont èliminâyes per yon des filters de la table des filters

	local function filter(condition, filterfunction, funargs)
		if not args[condition] then
			return
		end
		for i = #claims, 1, -1 do
			if not( filterfunction(claims[i], args[funargs[1]], args[funargs[2]], args[funargs[3]]) ) then
				table.remove(claims, i)
			end
		end
	end

	filter('targetvalue', hastargetvalue, {'targetvalue'} )
	filter('isinlang', isinlanguage, {'isinlang'} )
	filter('atdate', atDate, {'atdate'} )
	filter('qualifier', hasqualifier, {'qualifier', 'qualifiervalue'} )
	filter('excludequalifier', excludequalifier, {'excludequalifier', 'excludequalifiervalue'} )
	filter('source', hassource, {'source', 'sourceproperty'} )
	filter('withdate', hasdate, {} )
	filter('excludespecial', notSpecial, {} )
	filter('excludevalues', excludevalues, {'excludevalues'})
	filter('withlink', haslink, {'withlink', 'linklang'} )
	filter('condition', check, {'condition'})

	claims = withrank(claims, args.rank or 'best')
	if args.sorttype then
		claims = p.sortclaims(claims, args.sorttype)
	end
	if #claims == 0 then
		return nil
	end
	if args.numval then
		claims = firstvals(claims, args.numval)
	end
	return claims

end

function p.loadEntity(entity, cache)
	if type(entity) ~= 'table' then
		if cache then
			if not cache[entity] then 
				cache[entity] = mw.wikibase.getEntity(entity)
				mw.log("cached")
     		end
			return cache[entity]
        else
        	return mw.wikibase.getEntity(entity)
        end
    else 
    	return entity
    end
end


function p.getClaims( args ) -- returns a table of the claims matching some conditions given in args
	if args.claims then -- if claims have already been set, return them
		return args.claims
	end
	local properties = tools.splitStr(args.property)

	if not properties then
		return error( 'property-param-not-provided' )
	end

	--Get entity
	local entity = args.entity
 	entity = p.loadEntity(args.entity, args.cache)
    
	if (not entity) or (not entity.claims) then
		return nil
	end
	local claims = {}
	for i, prop in pairs(properties) do
		prop = string.upper(prop)
		for j, claim in pairs(entity.claims[prop] or {}) do
			table.insert(claims, claim)
		end
	end

	if (#claims == 0) then
		return nil
	end
	return p.filterClaims(claims, args)
end

return p