Modul:Array

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local Array,Internal = {},{}

setmetatable(Array,{
	__call=function(self,...) return self.create(...) end
})

function Array.pairs(array)
	return array().pairsAsc()
end

function Array.pairsAsc(array)
	return array().pairsAsc()
end

function Array.pairsDesc(array)
	return array().pairsDesc()
end

function Array.length(array)
	return array().length()
end

function Array.position(array,position)
	return array().position(array,position)
end

function Array.inArray(array,value)
	return array().inArray(value)
end

function Array.insert(array,arg1,arg2)
	return array().insert(arg1,arg2)
end

function Array.print(array)
	result = Internal.printHelperArray(array,0)
	mw.log(result)
	return result
end

function Internal.printHelperArray(array,level)
	if array().length() == 0 then return 'Array (0)' end
  	local whitespace = ''
  	local i = 1
  	for a=i,level do whitespace = whitespace .. ' ' end
	local result = 'Array (' .. array().length() .. ')\r\n' .. whitespace .. '(\r\n'
  	local y = true
  	local keys,values = array().getKeys(),array().getValues()
  	while y do
  		if type(values[keys[i]]) == 'table' and values[keys[i]]().type == 'array' then
  			result = result .. whitespace .. '   [' .. keys[i] .. '] => ' .. Internal.printHelperArray(values[keys[i]],level+4) .. '\r\n'
  		elseif type(values[keys[i]]) == 'table' then
  			result = result .. whitespace .. '   [' .. keys[i] .. '] => ' .. Internal.printHelperTable(values[keys[i]],level+4) .. '\r\n'
  		elseif type(values[keys[i]]) == 'string' then
  			result = result .. whitespace .. '   [' .. keys[i] .. '] => (string) "' .. values[keys[i]] .. '"\r\n'
  		elseif type(values[keys[i]]) == 'number' then
  			result = result .. whitespace .. '   [' .. keys[i] .. '] => (number) ' .. values[keys[i]] .. '\r\n'
  		elseif type(values[keys[i]]) == 'boolean' then
  			local bool = ''
  			if values[keys[i]] then bool = 'true' else bool = 'false' end
  			result = result .. whitespace .. '   [' .. keys[i] .. '] => (boolean) ' .. bool .. '\r\n'
  		elseif type(values[keys[i]]) == 'function' then
  			result = result .. whitespace .. '   [' .. keys[i] .. '] => (function) ' .. 'function' .. '\r\n'
  		else
			result = result .. whitespace .. '   [' .. keys[i] .. '] => ' .. values[keys[i]] .. '\r\n'
		end
		i = i + 1
		if keys[i] == nil then y = false end
	end
	result = result .. whitespace .. ')'
	return result
end

function Internal.printHelperTable(tableVal,level)
  	local whitespace = ''
  	local i = 1
  	for a=i,level do whitespace = whitespace .. ' ' end
  	local count = 0 
  	for _ in pairs(tableVal) do count = count + 1 end
	local result = 'Table (' .. count .. ')\r\n' .. whitespace .. '(\r\n'
  	for key,value in pairs(tableVal) do
  		if type(value) == 'table' and value().type == 'array' then
  			result = result .. whitespace .. '   [' .. key .. '] => ' .. Internal.printHelperArray(value,level+4) .. '\r\n'
  		elseif type(value) == 'table' then
  			result = result .. whitespace .. '   [' .. key .. '] => ' .. Internal.printHelperTable(value,level+4) .. '\r\n'
  		elseif type(value) == 'string' then
  			result = result .. whitespace .. '   [' .. key .. '] => (string) "' .. value .. '"\r\n'
  		elseif type(value) == 'number' then
  			result = result .. whitespace .. '   [' .. key .. '] => (number) ' .. value .. '\r\n'
  		elseif type(value) == 'boolean' then
  			local bool = ''
  			if key then bool = 'true' else bool = 'false' end
  			result = result .. whitespace .. '   [' .. key .. '] => (boolean) ' .. bool .. '\r\n'
  		elseif type(value) == 'function' then
  			result = result .. whitespace .. '   [' .. key .. '] => (function) ' .. 'function' .. '\r\n'
  		else
			result = result .. whitespace .. '   [' .. key .. '] => ' .. value .. '\r\n'
		end
	end
	result = result .. whitespace .. ')'
	return result
end
  
function Array.create(...)
  local newArray,keys,values,intern={},{},{},{}
  intern.type='array'
  intern.pairsAsc=function(self) -- pairs iterator
    local count=0
    return function() 
      count=count+1
      return keys[count],values[keys[count]]
    end
  end
  intern.pairsDesc=function(self) -- pairs iterator
    local count=intern.length()+1
    return function() 
      count=count-1
      return keys[count],values[keys[count]]
    end
  end
  intern.inArray=function(value)
  	length = intern.length()
    for i=1,length,1 do
      	if values[i] == value then
       		return true
       	end
	end
    return false
  end
  intern.position=function(self,position)
  	return values[keys[position]]
  end
  intern.length=function()
  	local count = 0 
  	for _ in intern.pairsAsc(keys) do count = count + 1 end
  	return count
  end
  intern.print=function()
  	return Array.print(newArray)
  end
  intern.getKeys=function()
  	return keys
  end
  intern.getValues=function()
  	return values
  end
  intern.insert=function(arg1,arg2)
  	if arg1 ~= nil  and arg2 ~= nil then
  		newArray[arg1]=arg2
  		return arg1
  	elseif arg1 ~= nil  and arg2 == nil then
  		local key = intern.getNewKey()
  		newArray[key]=arg1
  		return key
  	end
  end
  intern.getNewKey=function()
  	local i = 1
  	while true do
  		if keys[i] == nil then
  			return i
  		else
  			i = i + 1
  		end
  	end
  end
  setmetatable(newArray,{
    __newindex=function(self,key,value)
      if value==nil then -- Handle item delete
        local length=self().length()
        local keyCount = false
        for i=1,length,1 do
        	if keys[i] == key then
        		keyCount = i
        		break
        	end
	    end
	    if keyCount then
        	table.remove(keys,keyCount)
	    end
      elseif not self[key] then table.insert(keys,key)
      end
      values[key]=value -- replace/create
    end,
    __index=function(self,key) return values[key] end,
	__call=function(self,...) return intern end
  })
  for x=1,table.getn(arg) do
  	  if type(arg[x]) == 'table' and pcall(arg[x]) then
  	  	if type(arg[x]) == 'table' and arg[x]().type == 'array' then
  	  		newArray[intern.getNewKey()]=arg[x]
  	  	end
	  elseif type(arg[x]) == 'table' then
	  	for k,v in pairs(arg[x]) do newArray[k]=v end
	  else
  	  	newArray[intern.getNewKey()]=arg[x]
	  end
  end
  return newArray
end

return Array