Module:Infobox body of water tracking

local p = {}

function p.tracking(frame)
    local function isblank( val ) 
        return (val == nil) or val:match('^[%s]*$')
    end
    
    local function hasnoconvert( val )
    	local res = nil
    	val = mw.text.killMarkers(val)
    	if val:match('[0-9]') then
    		res = 1
    		if val:match('[%(][−0-9%.]') and val:match('[%)]') then
    			res = nil
    		end
		end
		return res
	end
    
    local cats = ''
    local args = frame:getParent().args
    local AZ = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
    
    if (isblank(args['image']) and isblank(args['image_lake']) ) then
        cats = cats .. '[[Category:Wikipedia infobox body of water articles without image]]'
    end
    
    if isblank(args['coords']) and isblank(args['coordinates']) then 
        cats = cats .. '[[Category:Wikipedia infobox body of water articles without coordinates]]'
    end
 
    local duplicate_parameters = 0
    local unknown_parameters = 0

	if (args['child'] and args['embed']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['name'] and args['lake_name']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['image'] and args['image_lake']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['alt'] and args['alt_lake']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['caption'] and args['caption_lake']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['coordinates'] and args['coords']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['lake_type'] and args['type']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['ocean_type'] and args['type']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['part_of'] and args['parent']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['basin_countries'] and args['countries']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['catchment_km2'] and args ['catchment']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['length_km'] and args['length']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['width_km'] and args['width']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['area_km2'] and args['area']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['depth_m'] and args['depth']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['max-depth_m'] and args['max-depth']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['volume_km3'] and args['volume']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['shore_km'] and args['shore']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['elevation_m'] and args['elevation']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['settlements'] and args['cities']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['extra'] and args['nrhp']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (args['extra'] and args['embedded']) then
        duplicate_parameters = duplicate_parameters + 1
    end
    if (duplicate_parameters > 0) then
        cats = cats .. '[[Category:Wikipedia infobox body of water articles ' ..
        	'using duplicate parameters|' .. 
        	string.sub(AZ, duplicate_parameters, duplicate_parameters+1) .. ']]'
    end
    
    local deprecated_parameters = 0
    if hasnoconvert(args['catchment'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['length'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['width'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['area'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['depth'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['max-depth'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['volume'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['shore'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['elevation'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['temperature_low'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end
    if hasnoconvert(args['temperature_high'] or '') then
        deprecated_parameters = deprecated_parameters + 1
    end

    if (deprecated_parameters > 0) then
        cats = cats .. '[[Category:Wikipedia infobox body of water articles ' ..
        	'using deprecated parameters|' ..
        	string.sub(AZ,deprecated_parameters, deprecated_parameters+1) .. ']]'
    end

    if (unknown_parameters > 0) then
        cats = cats .. '[[Category:Pages using infobox body of water with unknown parameters]]'
    end
    
    return cats
end
    
return p