Fix jdtls (as much as possible)

init.el

@@ -119,6 +119,15 @@
 	 ("C-:" . avy-goto-word-1)
 	 ("M-g g" . avy-goto-line)))
 
+(use-package undo-tree
+  :after evil
+  :config
+  (setq undo-tree-auto-save-history nil)
+  (advice-add #'evil-undo :override #'undo-tree-undo)
+  (advice-add #'evil-redo :override #'undo-tree-redo)
+  (define-key evil-normal-state-map (kbd "SPC u v") #'undo-tree-visualize)
+  (global-undo-tree-mode))
+
 ;; Magit (git frontend)
 (use-package magit)
 
@@ -165,6 +174,9 @@
 	:init
 	(setq markdown-fontify-code-blocks-natively t))
 
+;; Justfile
+(use-package just-mode)
+
 ;; String casing functions
 (use-package string-inflection)
 
@@ -219,7 +231,10 @@
   (which-key-mode +1))
 
 ;; On the fly syntax checking
-(use-package flycheck)
+(use-package flycheck
+  :after evil
+  :config
+  (define-key evil-normal-state-map (kbd "SPC e") #'flycheck-list-errors))
 
 ;; Completions
 (use-package company
@@ -261,25 +276,25 @@
   :config
   (add-hook 'lsp-mode-hook #'lsp-enable-which-key-integration)
   (add-hook 'evil-insert-state-entry-hook #'lsp-signature-activate)
-  (add-hook 'evil-insert-state-exit-hook #'lsp-signature-stop))
-
-(use-package lsp-ui
-  :after lsp-mode
-  :init
-  (setq lsp-ui-doc-position 'at-point
-        lsp-ui-doc-delay 0.5)
-  :config
-  (define-key lsp-ui-mode-map [remap xref-find-definitions] #'lsp-ui-peek-find-definitions)
-  (define-key lsp-ui-mode-map [remap xref-find-references] #'lsp-ui-peek-find-references)
-  (define-key evil-normal-state-map (kbd "SPC l d") #'lsp-ui-peek-find-definitions)
-  (define-key evil-normal-state-map (kbd "SPC l u") #'lsp-ui-peek-find-references)
+  (add-hook 'evil-insert-state-exit-hook #'lsp-signature-stop)
   (define-key evil-normal-state-map (kbd "SPC l r") #'lsp-rename)
   (define-key evil-normal-state-map (kbd "SPC l a") #'lsp-execute-code-action)
   (define-key evil-normal-state-map (kbd "SPC l = =") #'lsp-format-buffer)
   (define-key evil-normal-state-map (kbd "SPC l = r") #'lsp-format-region)
   (define-key evil-normal-state-map (kbd "SPC l s q") #'lsp-workspace-shutdown)
   (define-key evil-normal-state-map (kbd "SPC l s r") #'lsp-workspace-restart)
-  (define-key evil-normal-state-map (kbd "SPC l i") #'lsp-ui-doc-glance)
+  (define-key evil-normal-state-map (kbd "SPC l i") #'lsp-describe-thing-at-point))
+
+(use-package lsp-ui
+  :after lsp-mode
+  :init
+  (setq lsp-ui-doc-enable nil
+        lsp-ui-sideline-enable nil)
+  :config
+  (define-key lsp-ui-mode-map [remap xref-find-definitions] #'lsp-ui-peek-find-definitions)
+  (define-key lsp-ui-mode-map [remap xref-find-references] #'lsp-ui-peek-find-references)
+  (define-key evil-normal-state-map (kbd "SPC l d") #'lsp-ui-peek-find-definitions)
+  (define-key evil-normal-state-map (kbd "SPC l u") #'lsp-ui-peek-find-references)
   ;; Controls inside references popup
   (define-key lsp-ui-peek-mode-map (kbd "j") #'lsp-ui-peek--select-next)
   (define-key lsp-ui-peek-mode-map (kbd "k") #'lsp-ui-peek--select-prev)
@@ -290,6 +305,18 @@
 (use-package lsp-treemacs
   :after (lsp-mode treemacs))
 
+;; Java lsp
+(use-package lsp-java
+  :after lsp-mode
+  :hook (java-ts-mode . lsp-deferred)
+  :config
+  (setq lsp-java-server-install-dir (getenv "JDTLS_PATH"))
+  (defun lsp-java--ls-command ()
+    (list "jdt-language-server"
+          ;; this is called "configuration" for come reasn, its acually a cache
+          "-configuration" (concat (file-name-as-directory (getenv "XDG_CACHE_HOME")) "jdtls")
+          "-data" "../.jdtls")))
+
 ;; Nix support
 (use-package nix-mode
   :mode "\\.nix\\'"
@@ -324,6 +351,8 @@
               (hyprctl "hy3:makegroup" "h, ephemeral")
               (make-frame-command)))
 
+(define-key evil-normal-state-map (kbd "C-w a") #'make-frame-command)
+
 (advice-add #'evil-window-left :override
             (lambda (&optional count file) (hyprctl "hy3:movefocus" "l")))
 (advice-add #'evil-window-right :override
@@ -332,3 +361,19 @@
             (lambda (&optional count file) (hyprctl "hy3:movefocus" "u")))
 (advice-add #'evil-window-down :override
             (lambda (&optional count file) (hyprctl "hy3:movefocus" "d")))
+
+;;; Overrides
+
+;; stop lsp-mode from yoloing code actions when only one is present
+(defun lsp--select-action (actions)
+  "Select an action to execute from ACTIONS."
+  (cond
+   ((seq-empty-p actions) (signal 'lsp-no-code-actions nil))
+   ;;((and (eq (seq-length actions) 1) lsp-auto-execute-action)
+    ;;(lsp-seq-first actions))
+   (t (let ((completion-ignore-case t))
+        (lsp--completing-read "Select code action: "
+                              (seq-into actions 'list)
+                              (-compose (lsp--create-unique-string-fn)
+                                        #'lsp:code-action-title)
+                              nil t)))))