-----------
-- Basic --
-----------
vim.g.mapleader = " "
vim.opt.mouse = ''
vim.opt.wrap = true
vim.opt.number = true
vim.opt.relativenumber = true
vim.opt.laststatus = 2
vim.opt.hlsearch = true
vim.opt.incsearch = true
-- Directory for swap files
vim.opt.directory = vim.fn.expand("~/.local/share/nvim/swap//")
-- Search into subfolders
-- Provides tab completion for file related tasks
vim.opt.path:append '**'
-- Display all matching files when we tab complete
vim.opt.wildmenu = true
vim.cmd("filetype plugin on")
vim.api.nvim_set_keymap('v', '<C-c>', '"+y', { noremap = true, silent = true })

------------------------------------
-- Native Neovim tabs and windows --
------------------------------------
vim.keymap.set('n', '<leader>f', '<cmd>Explore<CR>', { desc = 'Open Neotree' })
vim.keymap.set("n", '<leader>c',function()
  vim.cmd("Tex")
  vim.cmd("wincmd r")
end, { desc = "Open tab"})
vim.keymap.set("n", '<leader>v', function()
  vim.cmd("Vex")
  vim.cmd("wincmd x")
  vim.cmd("wincmd l")
  vim.cmd("enew")
end, { desc = "Open vertical split" })
vim.keymap.set("n", '<leader>h', function()
  vim.cmd("Sex")
  vim.cmd("wincmd x")
  vim.cmd("wincmd j")
end, { desc = "Open horizontal split" })
-- Open terminal
local term_buf = nil
vim.keymap.set('n', '<leader>t', function()
  if term_buf and vim.api.nvim_buf_is_valid(term_buf) then
    -- Reuse existing terminal
    vim.cmd('rightbelow vsplit')
    vim.cmd('buffer ' .. term_buf)
  else
    -- Create a new terminal
    vim.cmd('rightbelow vsplit | terminal')
    term_buf = vim.api.nvim_get_current_buf()
  end
  vim.cmd('startinsert')
end, { desc = 'Open terminal in vertical split' })
vim.keymap.set('t', '<Esc>', [[<C-\><C-n>:q<CR>]], { desc = 'Exit terminal mode' })
vim.keymap.set('n', '<C-l>', '<cmd>tabnext +<CR>', { desc = 'Switch next tab' })
vim.keymap.set('n', '<C-h>', '<cmd>tabnext -<CR>', { desc = 'Switch prev tab' })
vim.keymap.set('n', '<C-A-h>', '<cmd>tabmove -1<CR>', { desc = 'Move current tab left' })
vim.keymap.set('n', '<C-A-l>', '<cmd>tabmove +1<CR>', { desc = 'Move current tab right' })
vim.keymap.set('n', '<A-k>', '<cmd>wincmd k<CR>', { desc = 'Move cursor to window above' })
vim.keymap.set('n', '<A-j>', '<cmd>wincmd j<CR>', { desc = 'Move cursor to window below' })
vim.keymap.set('n', '<A-h>', '<cmd>wincmd h<CR>', { desc = 'Move cursor to window left' })
vim.keymap.set('n', '<A-l>', '<cmd>wincmd l<CR>', { desc = 'Move cursor to window right' })

-----------------
-- Diagnostics --
-----------------
vim.diagnostic.config({
  virtual_text = false,  -- Disable inline text diagnostics
  signs = true,          -- Keep signs in the sign column
  update_in_insert = false,
  underline = true,
  severity_sort = true,
})

-- Show diagnostics on hover
vim.o.updatetime = 250 -- Faster update time for hover
vim.api.nvim_create_autocmd("CursorHold", {
  pattern = "*",
  callback = function()
    vim.diagnostic.open_float(nil, { focus = false, scope = "cursor" })
  end,
})