-- Настройка nvim-tree
require("nvim-tree").setup({
  sort = {
    sorter = "case_sensitive",
  },
  view = {
    width = 50,
  },
  renderer = {
    group_empty = true,
  },
  filters = {
    dotfiles = true,
  },
  actions = {
    open_file = {
      quit_on_open = true, -- закрывать дерево при открытии файла
    },
  },
  on_attach = function(bufnr)
    local api = require("nvim-tree.api")

    -- Apply default mappings
    api.config.mappings.default_on_attach(bufnr)

    -- Remove default C-] mapping
    vim.keymap.del("n", "<C-]>", { buffer = bufnr })

    -- Define file extensions to handle with system open
    local special_extensions = {
      ".pdf", ".png", ".jpeg", ".jpg", ".doc", ".docx"
    }

    -- Helper function to check file extension
    local function has_special_extension(node)
      for _, ext in ipairs(special_extensions) do
        if node.name:match("%.?[^.]+$") == ext then
          return true
        end
      end
      return false
    end

    -- Create combined CR mapping
    vim.keymap.set("n", "<CR>", function()
      local node = api.tree.get_node_under_cursor()
      if node and has_special_extension(node) then
        api.node.run.system() -- Open file in system
      else
        api.node.open.edit() -- Default open file behavior
        api.tree.change_root_to_node() -- Change root to node
      end
    end, { buffer = bufnr })
  end,
})

-- Глобальные бинды для nvim-tree
vim.keymap.set("n", "<Leader>e", ":NvimTreeToggle<CR>", { noremap = true, silent = true })
vim.keymap.set("n", "<Leader>q", ":NvimTreeFindFile<CR>", { noremap = true, silent = true })