Module:SoundtrackTable

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

local p = {}

function split(str, sep, max)
    local z = #sep; sep = '^.-'..sep:gsub('[$%%()*+%-.?%[%]^]', '%%%0')
    local t,n,p, q,r = {},1,1, str:find(sep)
    while q and n~=max do
        t[n],n,p = str:sub(q,r-z),n+1,r+1
        q,r = str:find(sep,p)
    end
    t[n] = str:sub(p)
    return t
end

function trim(s)
   return s:match( "^%s*(.-)%s*$" )
end

function toMap(entries)
	local fields = split(entries, '$$')
	local map = {}
	for var=1,#fields-1 do
		local tmp = {}
		local current = fields[var]
		for k, s in pairs(split(current, '$')) do
			local tmp2 = split(s, '=')
			tmp[tmp2[1]] = tmp2[2]
		end
		map[var] = tmp
	end
	return map
end

function value(entries, i, j, args)
	if not entries[i] then
		return 'Out Of Range'
	else
		if not entries[i][j] or entries[i][j] == '' then
			return args['default/' .. j] or ''
		else
			return entries[i][j]
		end
	end
end

function uniq(entries, i, j, args, columns)
	if not entries[i] then
		return 'Out Of Range'
	end
	if not args['unique/' .. j] then
		return value(entries, i, j, args)
	end
	local ret = args['unique/' .. j]
	for k, column in pairs(columns) do
		ret = ret:gsub(column, value(entries, i, column, args))
	end
	return ret
end

function p.overrides(frame)
	local args = frame:getParent().args
	local result = ''
	for key, value in pairs(args) do
		local t = split(key, '/')
		result = result .. '$id=' .. t[2] .. '$' .. t[1] .. '=!' .. value .. '$$'
	end
	return result
end

function p.entry(frame)
	local parent = frame:getParent()
	local ids = {}
	for i, value in pairs(split(parent.args["id"], ",")) do
		ids[i] = trim(value)
	end
	local idIndexes = {}
	for k, v in pairs(ids) do
		idIndexes[v] = k
	end
	local filesBySpeed = {}
	
	local t = {}
	for k, value in pairs(parent.args) do
		local kSplit = split(k, '/')
		local key, override = kSplit[1], kSplit[2]
		if not t[key] then
			t[key] = {}
		end
		if override then
			if key and tonumber(override) then
				filesBySpeed[override] = trim(value)
			else
				t[key][idIndexes[override]] = trim(value)
			end
		elseif value:find(",") then
			t[key] = split(value, ",")
			for i = 1, #ids do
				t[key][i] = trim(t[key][i])
			end
		else
			for i = 1, #ids do
				if not t[key][i] then
					t[key][i] = trim(value)
				end
			end
		end
	end
	
	for i = 1, #ids do
		if t["file"] then
			if not t["file"][i] then
				t["file"][i] = filesBySpeed[t["speed"][i]]
			end
		end
	end
	
	local result = ""
	for i = 1, #ids do
		local id = t["id"][i]
		for key, tvalue in pairs(t) do
			local value = tvalue[i] or ""
			result = result .. "$" .. key .. "=" .. value
		end
		result = result .. "$$"
	end
	return result
end

local function compare(a, b)
	return a["id"] < b["id"]
end

local function groupByID(entries)
	local table1 = {}
	local overrides = {}
	for i, x in ipairs(entries) do
		local id = x["id"]
		if not table1[id] then
			table1[id] = {}
		end
		for key, value in pairs(x) do
			if not table1[id][key] then
				table1[id][key] = {}
			end
			if value:match('^!') then
				if not overrides[id] then
					overrides[id] = {}
				end
				overrides[id][key] = string.sub(value, 2)
			end
			table1[id][key][value] = 4
		end
	end
	mw.logObject(overrides)
	local table2 = {}
	for id, x in pairs(table1) do
		local tmp = {}
		for key, value in pairs(x) do
			if overrides[id] and overrides[id][key] then
				tmp[key] = overrides[id][key]
			else
				for entry, q in pairs(value) do
					if not tmp[key] then
						tmp[key] = entry
					else
						tmp[key] = tmp[key] .. '<br />' .. entry
					end
				end
			end
		end
		table.insert(table2, tmp)
	end
	table.sort(table2, compare)
	return table2
end

function p.generate(frame)
	local args = frame.args
	local entries = groupByID(toMap(frame.args['entries']))
	local columns = split(frame.args['columns'], ',')
	
	local result = ""
	for var, x in ipairs(entries) do
		local subobject = "{{#subobject:BGM/" .. value(entries, var, "id", args)
		for k, column in pairs(columns) do
			local val = value(entries, var, column, args)
			
			subobject = subobject .. "\n|BGM/" .. column .. "="
			if column == "location" then
				local lines = split(val:gsub('<br />', '\n\n'), '\n\n')
				local locations = {}
				for _, line in pairs(lines) do
					if line:find('%[%[') then
						local namespaceName = split(split(line, ':')[1], '[')[3]
						local pageName = split(split(split(line, ':')[2], '|')[1], '#')[1]
						local displayName = split(split(line, '|')[2], ']')[1]
						local label = split(split(line, ']')[3], ':')[2]
						
						local record = namespaceName .. ":" .. pageName .. ";"
						if pageName == displayName then
							record = record .. trim(label or "")
						else
							if not label then
								record = record .. displayName
							else
								record = record .. displayName .. ": " .. trim(label)
							end
						end
						--mw.log(record)
						table.insert(locations, record)
					else
						table.insert(locations, line .. ";")
					end
				end
				subobject = subobject .. table.concat(locations, ",") .. "|+sep=,"
			else
				subobject = subobject .. val
			end
			
			local id = uniq(entries, var, column, args, columns)
			if (id ~= uniq(entries, var - 1, column, args, columns)) then
				local rowspan = 1
				while (id == uniq(entries, var + rowspan, column, args, columns)) do
					rowspan = rowspan + 1
				end
				if val ~= '' and frame.args['display/' .. column] then
					val = frame.args['display/' .. column]:gsub('value', val)
				end
				result = result .. '|rowspan="' .. tostring(rowspan) .. '"|' .. val .. "\n"
			end
		end
		if (var ~= #entries) then
			result = result .. "|-\n"
		end
		
		subobject = subobject .. "\n}}"
		frame:preprocess(subobject)
	end
	return result
end

function p.formatRecord(frame)
	local input = frame.args[1]
	if (input == '') then
		return ''
	end
	local s = split(input, ',')
	local result = ''
	for i, x in pairs(s) do
		x = trim(x)
		local m = x:match('^%d+')
		local n = string.sub(x, #m + 1)
		while (#m < 4) do
			m = '0' .. m
		end
		result = result .. ',' .. m .. n
	end
	result = string.sub(result, 2)
	return result
end

return p