-- ── plugins/treesitter.lua ────────────────────────────────────────────────────
-- nvim-treesitter rewrote its API (Oct 2025).
-- - nvim-treesitter.configs is GONE
-- - New API: require("nvim-treesitter").setup{}
-- - Does NOT support lazy loading: lazy = false required
-- - treesitter-textobjects is now a fully separate module

return {
    -- ── Core treesitter ───────────────────────────────────────────────────────
    {
        "nvim-treesitter/nvim-treesitter",
        branch = "main",
        lazy = false,
        build = ":TSUpdate",
        config = function()
            require("nvim-treesitter").setup({
                ensure_installed = {
                    "python",
                    "bash", "lua", "luadoc",
                    "json", "yaml", "toml",
                    "markdown", "markdown_inline",
                    "regex",
                    "vim", "vimdoc",
                    "diff", "gitcommit", "git_rebase",
                    "ini", "comment",
                },
                auto_install = false,   -- stateless image, no runtime installs
            })

            -- Highlight: enable per filetype via autocmd (new API pattern)
            vim.api.nvim_create_autocmd("FileType", {
                callback = function(ev)
                    -- Skip very large files
                    local ok, stats = pcall(vim.loop.fs_stat, vim.api.nvim_buf_get_name(ev.buf))
                    if ok and stats and stats.size > 500 * 1024 then return end
                    pcall(vim.treesitter.start)
                end,
            })
        end,
    },

    -- ── Textobjects: separate plugin, separate module ─────────────────────────
    {
        "nvim-treesitter/nvim-treesitter-textobjects",
        branch = "main",
        lazy = false,
        dependencies = {
            { "nvim-treesitter/nvim-treesitter", branch = "main" },
        },
        config = function()
            require("nvim-treesitter-textobjects").setup({
                select = {
                    enable    = true,
                    lookahead = true,
                    keymaps   = {
                        ["af"] = "@function.outer",
                        ["if"] = "@function.inner",
                        ["ac"] = "@class.outer",
                        ["ic"] = "@class.inner",
                        ["aa"] = "@parameter.outer",
                        ["ia"] = "@parameter.inner",
                        ["ab"] = "@block.outer",
                        ["ib"] = "@block.inner",
                    },
                },
                move = {
                    enable    = true,
                    set_jumps = true,
                    goto_next_start = {
                        ["]f"] = "@function.outer",
                        ["]c"] = "@class.outer",
                    },
                    goto_previous_start = {
                        ["[f"] = "@function.outer",
                        ["[c"] = "@class.outer",
                    },
                },
            })
        end,
    },
}