Module:GeoSetsNav/sandbox

 function p.renderMap(frame)
 local args = frame.args
 local currentTitle = mw.title.getCurrentTitle()
 local categoryName

 -- Category name handling (same as before)
 if args[1] then
 categoryName = args[1]
 else
 if currentTitle.namespace ~= 14 then
 return "'''Error:''' This template must be placed on a category page."
 end
 categoryName = currentTitle.text
 end

 local debugInfo = "Category: " .. categoryName .. "<br>"
 local markers = {}
 local count = 0

 mw.log("Starting renderMap for category: " .. categoryName) -- Log start

 -- Use MediaWiki API to get category members and their content
 if mw.http and mw.http.fetch then
 local apiUrl = mw.uri.fullUrl("api.php", {
 action = "query",
 generator = "categorymembers",
 gcmtitle = "Category:" .. categoryName,
 gcmlimit = "500", -- Adjust limit as needed
 prop = "revisions",
 rvprop = "content",
 format = "json"
 })

 mw.log("API URL: " .. apiUrl) -- Log API URL

 local response = mw.http.fetch(apiUrl)
 if response then
 mw.log("API response status: " .. response.status) -- Log response status
 if response.status == 200 then -- Check for successful response
 local apiResult
 local successJSON, jsonError = pcall(mw.text.jsonDecode, response.body)
 if successJSON then
 apiResult = jsonError
 mw.logObject(apiResult) -- Log the decoded JSON result
 if apiResult and apiResult.query and apiResult.query.pages then
 for _, page in pairs(apiResult.query.pages) do
 if page.revisions and page.revisions[1] and page.revisions[1].content then
 local content = page.revisions[1].content
 local filename = page.title -- Page title is the filename

 -- Parse for {{Location|latitude|longitude|...}} template
 local locationTemplate = content:match('{{Location%s*|(%S+)|(%S+)')
 if locationTemplate then
 local lat, lon = locationTemplate[1], locationTemplate[2]
 if lat and lon then
 table.insert(markers, {
 lat = lat,
 lon = lon,
 label = "[[:" .. filename .. "|" .. filename:gsub("^File:", "") .. "]]"
 })
 count = count + 1
 end
 end
 end
 end
 else
 debugInfo = debugInfo .. "API query successful, but no pages or revisions found.<br>"
 mw.log(debugInfo) -- Log debugInfo
 end
 else
 debugInfo = debugInfo .. "Error decoding JSON: " .. jsonError .. "<br>"
 debugInfo = debugInfo .. "Response body was: " .. response.body .. "<br>"
 mw.log(debugInfo) -- Log debugInfo
 end

 else
 debugInfo = debugInfo .. "API call failed with status: " .. (response and response.status or "unknown") .. "<br>"
 if response and response.body then
 debugInfo = debugInfo .. "API response body: " .. response.body .. "<br>"
 mw.log(debugInfo) -- Log debugInfo
 end
 end
 else
 debugInfo = debugInfo .. "API response is nil (fetch failed?).<br>"
 mw.log(debugInfo) -- Log debugInfo
 end
 else
 debugInfo = debugInfo .. "mw.http is not available (this is unexpected on Wikimedia Commons). API fallback not executed.<br>"
 mw.log(debugInfo) -- Log debugInfo
 end


 if #markers == 0 then
 return "No geotagged images found in this category (searched through " .. count .. " files).<br>" .. debugInfo
 else
 return frame:expandTemplate{
 title = "Mapframe",
 args = {
 width = "100%",
 height = "400",
 zoom = "10",
 coordinates = markers[1].lat .. "_" .. markers[1].lon, -- Center on the first marker
 markers = mw.text.jsonEncode(markers)
 }
 }
 end
 end