-- Treesitter: Syntax highlighting, incremental selection, textobjects, autotag
return {
  {
    "nvim-treesitter/nvim-treesitter",
    build = ":TSUpdate",
    event = { "BufReadPost", "BufNewFile" },
    dependencies = {
      "nvim-treesitter/nvim-treesitter-textobjects",
      "windwp/nvim-ts-autotag",
    },
    config = function()
      require("nvim-treesitter.configs").setup({
        -- Install parsers for primary languages
        ensure_installed = {
          "lua",
          "vim",
          "vimdoc",
          "php",
          "html",
          "javascript",
          "typescript",
          "tsx",
          "css",
          "scss",
          "json",
          "markdown",
          "markdown_inline",
          "bash",
          "python",
          "regex",
        },
        
        -- Auto-install missing parsers
        auto_install = true,
        
        -- Syntax highlighting
        highlight = {
          enable = true,
          -- Disable for very large files
          disable = function(lang, buf)
            local max_filesize = 100 * 1024 -- 100 KB
            local ok, stats = pcall(vim.loop.fs_stat, vim.api.nvim_buf_get_name(buf))
            if ok and stats and stats.size > max_filesize then
              return true
            end
          end,
          additional_vim_regex_highlighting = false,
        },
        
        -- Incremental selection
        incremental_selection = {
          enable = true,
          keymaps = {
            init_selection = "<CR>",
            node_incremental = "<CR>",
            scope_incremental = "<S-CR>",
            node_decremental = "<BS>",
          },
        },
        
        -- Indentation (experimental, disable if issues)
        indent = {
          enable = false, -- Start disabled; can enable per-filetype if stable
        },
        
        -- Textobjects
        textobjects = {
          select = {
            enable = true,
            lookahead = true, -- Jump forward to next textobject
            keymaps = {
              -- Functions
              ["af"] = "@function.outer",
              ["if"] = "@function.inner",
              -- Classes
              ["ac"] = "@class.outer",
              ["ic"] = "@class.inner",
              -- Parameters/arguments
              ["aa"] = "@parameter.outer",
              ["ia"] = "@parameter.inner",
              -- Conditionals
              ["ai"] = "@conditional.outer",
              ["ii"] = "@conditional.inner",
              -- Loops
              ["al"] = "@loop.outer",
              ["il"] = "@loop.inner",
              -- Comments
              ["a/"] = "@comment.outer",
            },
          },
          move = {
            enable = true,
            set_jumps = true, -- Add to jumplist
            goto_next_start = {
              ["]f"] = "@function.outer",
              ["]c"] = "@class.outer",
              ["]a"] = "@parameter.inner",
            },
            goto_next_end = {
              ["]F"] = "@function.outer",
              ["]C"] = "@class.outer",
              ["]A"] = "@parameter.inner",
            },
            goto_previous_start = {
              ["[f"] = "@function.outer",
              ["[c"] = "@class.outer",
              ["[a"] = "@parameter.inner",
            },
            goto_previous_end = {
              ["[F"] = "@function.outer",
              ["[C"] = "@class.outer",
              ["[A"] = "@parameter.inner",
            },
          },
          swap = {
            enable = true,
            swap_next = {
              ["<leader>a"] = "@parameter.inner",
            },
            swap_previous = {
              ["<leader>A"] = "@parameter.inner",
            },
          },
        },
      })
      
      -- Setup autotag
      require("nvim-ts-autotag").setup({
        opts = {
          enable_close = true, -- Auto close tags
          enable_rename = true, -- Auto rename pairs of tags
          enable_close_on_slash = true, -- Auto close on trailing </
        },
        -- Limit to relevant filetypes
        per_filetype = {
          ["html"] = { enable_close = true },
          ["php"] = { enable_close = true },
          ["javascript"] = { enable_close = true },
          ["javascriptreact"] = { enable_close = true },
          ["typescript"] = { enable_close = true },
          ["typescriptreact"] = { enable_close = true },
          ["vue"] = { enable_close = true },
        },
      })
    end,
  },
}