From 206ca73ee5f74ec70f3bfc8659bb1fc22e18bcba Mon Sep 17 00:00:00 2001
From: Martin <git@pander-on.de>
Date: Sun, 20 Jul 2025 18:29:36 +0200
Subject: [PATCH] Add luasnip instead of vsnip

---
 nix/user/nvim.nix |  4 ++--
 nvim/filetype.lua | 20 ++++++++++++++++++++
 nvim/plugins.lua  | 44 +++++++++++++++++++++++++++++++++++++++-----
 3 files changed, 61 insertions(+), 7 deletions(-)

diff --git a/nix/user/nvim.nix b/nix/user/nvim.nix
index c5932cf..44ee223 100644
--- a/nix/user/nvim.nix
+++ b/nix/user/nvim.nix
@@ -35,9 +35,9 @@
       yanky-nvim
       lualine-nvim
       undotree
-      vim-vsnip
+      luasnip
       nvim-cmp
-      cmp-vsnip
+      cmp_luasnip
       cmp-buffer
       cmp-path
       cmp-cmdline
diff --git a/nvim/filetype.lua b/nvim/filetype.lua
index d855162..d0a039f 100644
--- a/nvim/filetype.lua
+++ b/nvim/filetype.lua
@@ -131,3 +131,23 @@ require("conform").setup({
 --     lspconfig.zls.setup({ capabilities = capabilities })
 --   end,
 -- })
+--
+local get_datetime = function()
+  return os.date("%Y-%m-%d %H:%M")
+end
+
+local ls = require('luasnip')
+ls.add_snippets("markdown", {
+  ls.snippet("mindful", {
+    -- Inserts the output of the get_datetime function as static text
+    ls.function_node(get_datetime, {}),
+    ls.text_node(" -- "),
+    ls.insert_node(1, "project"),
+    ls.text_node(" -- "),
+    ls.insert_node(2, "mode"),
+    ls.text_node(" -- "),
+    ls.insert_node(3, "description"),
+  }, {
+    descr = "Mindful of distractions",
+  }),
+})
diff --git a/nvim/plugins.lua b/nvim/plugins.lua
index b1123ee..133d784 100644
--- a/nvim/plugins.lua
+++ b/nvim/plugins.lua
@@ -22,11 +22,12 @@ vim.g.windowswap_map_keys=0
 
 local cmp = require('cmp')
 local lspkind = require('lspkind')
+local ls = require('luasnip')
 
 cmp.setup({
   snippet = {
     expand = function(args)
-      vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
+      ls.lsp_expand(args.body)
     end,
   },
 
@@ -35,13 +36,46 @@ cmp.setup({
     documentation = cmp.config.window.bordered(),
   },
 
-  mapping = cmp.mapping.preset.insert({
+  -- mapping = cmp.mapping.preset.insert({
+  --   -- ['<Tab>'] = cmp.mapping.confirm({ select = false }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
+  -- }),
+  mapping = {
     ['<C-b>'] = cmp.mapping.scroll_docs(-4),
     ['<C-f>'] = cmp.mapping.scroll_docs(4),
     ['<C-Space>'] = cmp.mapping.complete(),
     ['<C-e>'] = cmp.mapping.abort(),
-    ['<Tab>'] = cmp.mapping.confirm({ select = false }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
-  }),
+    ['<CR>'] = cmp.mapping(function(fallback)
+        if cmp.visible() then
+            if ls.expandable() then
+                ls.expand()
+            else
+                cmp.confirm({
+                    select = true,
+                })
+            end
+        else
+            fallback()
+        end
+    end),
+    ["<Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      elseif ls.locally_jumpable(1) then
+        ls.jump(1)
+      else
+        fallback()
+      end
+    end, { "i", "s" }),
+    ["<S-Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_prev_item()
+      elseif ls.locally_jumpable(-1) then
+        ls.jump(-1)
+      else
+        fallback()
+      end
+    end, { "i", "s" }),
+  },
 
   sources = cmp.config.sources({
     { name = 'nvim_lsp', priority = 1000 },
@@ -50,7 +84,7 @@ cmp.setup({
     { name = 'path', priority = 600 },
     { name = 'cmp_yanky', priority = 500 },
     { name = 'git', priority = 400 },
-    { name = 'vsnip', priority = 300 },
+    { name = 'luasnip', priority = 300 },
     { name = 'nvim_lua', priority = 200 },
   }),