local function map(mode, bind, cmd, opts)
  opts = opts or {noremap = true, silent = true}
  if type(bind) == 'table' then
    for i in pairs(bind) do
      vim.keymap.set(mode, bind[i], cmd, opts)
    end
  elseif type(bind) == 'string' then
    vim.keymap.set(mode, bind, cmd, opts)
  else
    vim.notify('-- Invalid bind for keymap:\nvim.keymap.set(\''
      .. mode .. '\', ' .. bind .. ', \'' .. cmd .. '\')',
      vim.log.levels.WARN, {
        title = 'Neovim Config',
        on_open = function(win)
          local buf = vim.api.nvim_win_get_buf(win)
          vim.api.nvim_buf_set_option(buf, "filetype", "lua")
        end
      }
    )
  end
end

-- vim binds ------------------------------------------------------------------
g.mapleader = ' ' -- set leader key

-- greatest remap ever
map('x', '<leader>p', [["_dP]])

-- clear search
map('n', '<ESC>', ':nohlsearch<Bar>:echo<CR>')

-- move selected text up/down
map('v', '<S-k>', ":m '<-2<CR>gv=gv")
map('v', '<S-j>', ":m '>+1<CR>gv=gv")

-- the cursor STAYS IN THE MIDDLE
map('n', '<S-j>', 'mzJ`z<cmd>delm z<CR>') -- when combining lines
map('n', 'n', 'nzzzv') -- searching
map('n', 'N', 'Nzzzv')
map('n', '<C-d>', '<C-d>zz') -- half page jumping
map('n', '<C-u>', '<C-u>zz')

-- execute order 111
map('n', '<leader>x', '<cmd>!chmod +x %<CR>')

-- add some keybinds to the file view
a.nvim_create_autocmd('FileType', {
  pattern = 'netrw',
  callback = function()
    local bind = function(lhs, rhs)
      vim.keymap.set('n', lhs, rhs, { remap = true, buffer = true })
    end
    bind('h', '-^') -- Go up a directory
    bind('l', '<CR>') -- Go down a directory / open a file
    bind('.', 'gh') -- Toggle dotfiles
    bind('P', '<C-w>z') -- Close preview window
    bind('<ESC>', '<cmd>q<CR>') -- Close netrw
  end
})

-- custom menu for simpler neovim managment -----------------------------------
local function configmenu()
  local list = {}
  local function add(name, plug)
    if not plug then
      table.insert(list, name)
      return
    end
    if package.loaded[plug] then
      table.insert(list, name)
    end
  end

  add('edit config')
  add('update plugins', 'dep')

  vim.ui.select(list, { prompt = 'Config Menu' },
  function(choice)
    if choice == 'edit config' then
      vim.cmd'e $XDG_CONFIG_HOME/nvim/init.lua'
    end
    if choice == 'update plugins' then
      require('dep').sync()
      if package.loaded['nvim-treesitter'] then
        vim.cmd'TSUpdate'
      end
      if package.loaded['mason'] then
        require('mason.api.command').MasonUpdate()
      end
    end
  end)
end

map('n', '<C-m>', configmenu)

-- plugin binds ---------------------------------------------------------------
-- treesj
local treesj = require('treesj')
map('n', '<leader>j', treesj.toggle)

-- telescope
local telebuilt = require('telescope.builtin')
map('n', '<leader>sf', telebuilt.find_files)
map('n', '<leader>sg', telebuilt.git_files)
map('n', '<leader>sp', function()
  telebuilt.grep_string({ search = vim.fn.input('Find string in project > ') });
end)
map('n', '<leader>so', telebuilt.oldfiles)

-- intellitab
local intellitab = require('intellitab')
map('n', '<Tab>', intellitab.indent)

-- undo tree
map('n', '<leader>u', '<cmd>UndotreeToggle<CR>')

-- sfm
map('n', '<leader>f', '<cmd>SFMToggle<CR>')

-- dap ui
local dapui = require('dapui')
map('n', '<leader>d', dapui.toggle)

-- switch between previous buffers
map('n', '<leader>b', '<cmd>JABSOpen<CR>')

-- resizing buffers (toggleable)
local smartsplits = require('smart-splits')
map('n', '<leader>r', smartsplits.start_resize_mode)

-- trouble (lsp error view)
map('n', '<leader>t', '<cmd>TroubleToggle<CR>')

-- icon picker
map('n', '<C-e>', '<cmd>IconPickerYank<CR>')

-- toggle term
map('t', '<ESC>', '<C-\\><C-n>') -- make <ESC> work in terminals
map({'n', 't'}, '<C-\\>', '<cmd>ToggleTerm size=20<CR>')
map({'n', 't'}, '<leader>gl', '<cmd>lua _glow()<CR>')