local table = _G.table or {};

table.copy = function(t)
    local new = {};
    
    if not t or type(t) ~= 'table' or next(t) == nil then
        return new
    end

    for k, v in next, t, nil do
        if type(v) == 'table' then
            new[k] = table.copy(v)
        else
            new[k] = v
        end
    end

    return new;
end

table.size = function(t, iterate)
    if not t or type(t) ~= 'table' or next(t) == nil then
        return 0
    end

    if iterate then
        return #t
    end

    local q = 0

    for _ in next, t, nil do
        q = q + 1
    end

    return q
end

table.find = function(tbl, value)
    if not tbl or type(tbl) ~= 'table' or next(tbl) == nil then
        return nil
    end

    for key, val in next, tbl, nil do
        if val == value then
            return key, val
        end
    end

    return nil
end

table.ifind = function(tbl, value)
    if not tbl or type(tbl) ~= 'table' or next(tbl) == nil then
        return nil
    end

    for key, val in next, tbl, nil do
        if key == value then
            return key, val
        end
    end

    return nil
end

table.flatten = function (t, prefix)
    if not t or type(t) ~= 'table' or next(t) == nil then
        return {}
    end

    local flat = {}
    prefix = prefix or ''

    for k,v in next, t, nil do
        local key = prefix .. k

        if type(v) == 'table' then
            local sub = table.flatten(v, key..'.');

            for sk, sv in next, sub, nil do
                flat[sk] = sv
            end
        else
            flat[key] = v
        end
    end

    return flat
end

table.compare = function(t1, t2)
    if (t1 == t2) then
        return true
    end

    if (type(t1) ~= 'table' or type(t2) ~= 'table') then
        return false
    end

    for k in pairs(t2) do
        if (t1[k] == nil) then
            return false
        end
    end

    for k, v in pairs(t1) do
        if (type(v) == 'table') then
            if (not table.compare(v, t2[k])) then
                return false
            end
        else
            if (v ~= t2[k]) then
                return false
            end
        end
    end

    return true
end

return table;