simple toggleterm writing in pure lua for neovim

easyToggleTerm.lua

local bufname = "SingleTerminal"
-- Define term position and size
local splitconfig = "bot 20 new "
local jobid = -1
local bufid = -1
local terminal_opened_win_id = -1

local function showTerm(wind_id)
  terminal_opened_win_id = wind_id
  vim.cmd(splitconfig .. "| buffer " .. bufname)
  vim.cmd("startinsert")
end

local function newTerm(wind_id)
  terminal_opened_win_id = wind_id
  vim.cmd(splitconfig .. "| term")
  vim.cmd("file " .. bufname)
  vim.wo.relativenumber = false
  vim.o.number = false
  vim.bo.buflisted = false
  vim.wo.foldcolumn = '0'
  bufid = vim.api.nvim_buf_get_number(0)
  jobid = vim.b.terminal_job_id
  vim.cmd("startinsert")
end

--- Open or create terminal
local function OpenTerm()
  local buf_exist = vim.api.nvim_buf_is_valid(bufid)
  local current_wind_id = vim.api.nvim_get_current_win()
  if buf_exist then
    local bufinfo = vim.fn.getbufinfo(bufid)[1]
    if bufinfo.hidden == 1 then
      showTerm(current_wind_id)
    else
      vim.fn.win_gotoid(bufinfo.windows[1])
      vim.cmd(":hide")
      if current_wind_id ~= terminal_opened_win_id and current_wind_id ~= bufinfo.windows[1] then
        vim.fn.win_gotoid(current_wind_id)
        showTerm(current_wind_id)
      end
    end
  else
    newTerm(current_wind_id)
  end
end

function _G.SingleTermSend(cmd, interrupt)
  interrupt = interrupt or false
  local buf_exist = vim.api.nvim_buf_is_valid(bufid)
  if buf_exist then
    if interrupt then
      OpenTerm()
      vim.api.nvim_chan_send(jobid, vim.api.nvim_replace_termcodes('<C-c> <C-l>', true, true, true))
      vim.loop.sleep(100)
    end
    vim.api.nvim_chan_send(jobid, cmd .. "\n")
  else
    OpenTerm()
    vim.api.nvim_chan_send(jobid, cmd .. "\n")
  end
end

-- Define your keymaping
vim.keymap.set({ "n", "t" }, "<C-ñ>", OpenTerm)

vim.api.nvim_create_user_command("Tsc", function(opts) SingleTermSend(opts.args) end, { nargs = 1 })

can you please help me with your config i want to know what functionalities you are trying to achieve here