local TemplateParam = require("Module:Template parameter value")
local p = {}
function p.findDate(frame)
local args = require("Module:Arguments").getArgs(frame)
local page = args[1] or args.page
local targetAction = args[2]
if not page or not targetAction then
return ""
end
local success, template = TemplateParam.getTemplate(page, {"Article[_ ]history", "ArticleHistory"}, {treat_as_regex = true})
if not success then
return ""
end
local params = TemplateParam.getAllParameters(template)
local lastIndex = 0
for key, values in pairs(params) do
local num = key:match("^action(%d+)$")
if num and values[1] == targetAction then
num = tonumber(num)
if num > lastIndex then
lastIndex = num
end
end
end
if lastIndex > 0 then
local dateKey = "action" .. lastIndex .. "date"
if params[dateKey] and params[dateKey][1] then
return params[dateKey][1]
end
end
return ""
end
return p
