-- Diagnostic keymaps

vim.keymap.set(
  'n',
  '<leader>e',
  vim.diagnostic.open_float,
  { desc = "[Diagnostic] Open floating diagnostic message" }
)

vim.keymap.set(
  'n',
  '<leader>q',
  vim.diagnostic.setloclist,
  { desc = "[Diagnostic] Open diagnostics list" }
)

-- Install and configure treesitter

return {
  "nvim-treesitter/nvim-treesitter",
  dependencies = {
    "nvim-treesitter/nvim-treesitter-textobjects",
    branch = "main",  -- ← nécessaire aussi pour textobjects
  },
  lazy = false,
  branch = "main",
  build = ":TSUpdate",

  config = function()
    local treesitter = require('nvim-treesitter')
    treesitter.setup()
    treesitter.install({
      'bash',
      'css',
      'dot',
      'gitignore',
      'html',
      'javascript',
      'json',
      'julia',
      'latex',
      'lua',
      'mermaid',
      'python',
      'query',
      'r',
      'typescript',
      'vim',
      'vimdoc',
      'xml',
      'yaml',
    })

    vim.api.nvim_create_autocmd('FileType', {
      pattern = {
        'bash',
        'css',
        'dot',
        'gitignore',
        'html',
        'javascript',
        'json',
        'julia',
        'latex',
        'lua',
        'mermaid',
        'python',
        'query',
        'r',
        'typescript',
        'vim',
        'vimdoc',
        'xml',
        'yaml',
      },
      callback = function()
        -- syntax highlighting, provided by Neovim
        pcall(vim.treesitter.start)  -- ← pcall: évite l'erreur si pas de parser
        -- folds, provided by Neovim
        vim.wo.foldexpr = 'v:lua.vim.treesitter.foldexpr()'
        vim.wo.foldmethod = 'expr'
        -- indentation, provided by nvim-treesitter (expérimental)
        vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
      end,
    })
  end
}