refactor: remove fzf_lua implementation; defer directly to fzf_lua

Since fzf-lua ships with an implementation for vim.ui.select, we should
use that directly instead of creating our own wrapper. It reduces
overall code duplication and reduces the surface area for bugs to creep
in.

lua/dressing/config.lua

@@ -88,14 +88,6 @@ local default_config = {
       },
     },
 
-    -- Options for fzf_lua selector
-    fzf_lua = {
-      winopts = {
-        width = 0.5,
-        height = 0.4,
-      },
-    },
-
     -- Options for nui Menu
     nui = {
       position = "50%",

lua/dressing/select/fzf_lua.lua

@@ -1,40 +1,17 @@
 local M = {}
 
 M.is_supported = function()
-  return pcall(require, "fzf-lua")
+  return pcall(require, "fzf-lua.providers.ui_select")
 end
 
 M.select = function(config, items, opts, on_choice)
-  local fzf = require("fzf-lua")
-  local labels = {}
-  for i, item in ipairs(items) do
-    table.insert(labels, string.format("%d: %s", i, opts.format_item(item)))
+  if config then
+    vim.notify_once(
+      "Deprecated: dressing config for fzf_lua has been removed in favor of using the built-in fzf-lua vim.ui.select implementation.\nRemove the fzf_lua key from dressing.setup()",
+      vim.log.levels.WARN
+    )
   end
-
-  local prompt = (opts.prompt or "Select one of") .. "> "
-
-  local fzf_opts = vim.tbl_deep_extend("keep", config, {
-    prompt = prompt,
-    fzf_opts = {
-      ["--no-multi"] = "",
-      ["--preview-window"] = "hidden:right:0",
-    },
-    actions = {
-      -- "default" gets called when pressing "enter"
-      -- all fzf style binds (i.e. "ctrl-y") are valid
-      ["default"] = function(selected, _)
-        if not selected then
-          on_choice(nil, nil)
-        else
-          local label = selected[1]
-          local lnum = tonumber(label:match("^(%d+):"))
-          local item = items[lnum]
-          on_choice(item, lnum)
-        end
-      end,
-    },
-  })
-  fzf.fzf_exec(labels, fzf_opts)
+  return require("fzf-lua.providers.ui_select").ui_select(items, opts, on_choice)
 end
 
 return M

tests/manual/select.lua

@@ -5,7 +5,7 @@ local function run_test(backend)
   local prev_backend = config.select.backend
   config.select.backend = backend
   vim.ui.select({ "first", "second", "third" }, {
-    prompt = "Make selection",
+    prompt = "Make selection: ",
     kind = "test",
   }, function(item, lnum)
     if item and lnum then