Module:Tabber/OfferingTable

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

local p = {}

local ARGS_ORDER = { 'qty', 'item1', 'item2', 'item3', 'item4' };
local TIER_ORDER = { 'C', 'U', 'R', 'E' }
local TIER_LABEL = {
	E = 'Epic',
	R = 'Rare',
	U = 'Uncommon',
	C = 'Common'
}

local function isBlank(s)
  return not s or mw.text.trim(s) == ''
end

local function parseLine(line)
	local parts = mw.text.split(line, '|', true)
	local page = table.remove(parts, 1)
	local kv = { page = page }
	for _, field in ipairs(parts) do
		local k, v = field:match('^(%w+)%=(.*)$')
		if k then kv[k] = v end
		end
	kv.tier = (kv.tier or ''):upper()
	if isBlank(kv['item1']) then
		kv.isEmpty = true
	end
	kv.qty	= tonumber(kv.qty or '') or 1
	return kv
end

local function expandCell(frame, r)
	local args = {}
	for _, key in ipairs(ARGS_ORDER) do
		table.insert(args, r[key] or '')
	end
	args.A = r.connector1
	args.B = r.connector2
	args.C = r.connector3 
	args.D = r.connector4

	return frame:expandTemplate{ title = 'TableCell/OfferingTable', args = args } 
end

function p.build_tabber(frame)
	local args = frame.args
	local data = args.data or ''
	local debug_flag = args['debug'] or frame.args['debug'] or 0
	
	if debug_flag == '1' then 
       return '<pre>' .. data .. '</pre>'
    end
       
	local buckets = { E = {}, R = {}, U = {}, C = {} }
	for line in mw.text.gsplit(data, '\n', true) do
		line = mw.text.trim(line)
		if line ~= '' then
			local row = parseLine(line)
			if buckets[row.tier] then table.insert(buckets[row.tier], row) end
		end
	end
	
	for _, rows in pairs(buckets) do
		table.sort(rows, function(a, b)
			if a.isEmpty ~= b.isEmpty then
				return a.isEmpty and not b.isEmpty
				end
			return a.page < b.page
		end)
	end

	local tabs = {}
	for _, tier in ipairs(TIER_ORDER) do
		local rows = buckets[tier]
		if #rows > 0 then
			local out = {}
			table.insert(out, '{{TableHeader|Item|Offering Requirements}}')
			for _, r in ipairs(rows) do
				local item = frame:expandTemplate{ title = 'ItemLink', args = { r.page } }
				local req = expandCell(frame, r)
				table.insert(out, '|-')
				table.insert(out, '| ' .. item)
				table.insert(out, '| ' .. req)
			end
			table.insert(out, '{{TableFooter}}')
			table.insert(tabs, TIER_LABEL[tier] .. '=' .. table.concat(out, '\n'))
		end
	end

	if #tabs == 0 then return '' end
	return mw.getCurrentFrame():preprocess('<tabber>\n' .. table.concat(tabs, '\n|-|\n') .. '\n</tabber>')
end

return p