local api = vim.api
local au = api.nvim_create_autocmd
local group = api.nvim_create_augroup('triimd.term', { clear = true })

-- Custom terminal
au('TermOpen', {
  group = group,
  callback = function()
    vim.opt_local.number = false
    vim.opt_local.relativenumber = false
    vim.opt_local.scrolloff = 0
    vim.bo.filetype = 'terminal'
    vim.cmd.startinsert()
  end,
})

-- Insert when re-entering a terminal window (after switching back)
au('BufEnter', {
  group = group,
  pattern = 'term://*',
  callback = function()
    if vim.bo.buftype == 'terminal' and vim.fn.mode() ~= 'i' then
      vim.cmd.startinsert()
    end
  end,
})

-- Close all terminal buffers before quitting
au('QuitPre', {
  group = group,
  callback = function()
    for _, buf in ipairs(vim.api.nvim_list_bufs()) do
      if vim.api.nvim_buf_is_loaded(buf) and vim.bo[buf].buftype == 'terminal' then
        vim.api.nvim_buf_delete(buf, { force = true })
      end
    end
  end,
})

local commands = {
  TermDefault = function()
    vim.cmd('terminal')
  end,

  TermRelative = function()
    local shell = vim.o.shell or 'zsh'
    local dir = vim.fn.expand('%:p:h')
    vim.cmd(string.format('edit term://%s//%s', dir, shell))
  end,

  TermSplit = function()
    vim.cmd('new')
    vim.cmd('wincmd J')
    vim.api.nvim_win_set_height(0, 12)
    vim.wo.winfixheight = true
    vim.cmd('term')
  end,

  TermVSplit = function()
    vim.cmd('vsplit')
    vim.cmd('term')
  end,
}

for name, fn in pairs(commands) do
  vim.api.nvim_create_user_command(name, fn, {})
end