From 5e80cc2081ec616c828a0abe82d246c4dc0a4334 Mon Sep 17 00:00:00 2001
From: bh <qn+git@excalibur.computer>
Date: Wed, 19 Nov 2025 14:50:22 +0800
Subject: Fixed snippets and also a little refactoring on the theme

---
 lua/config/.bak/.luasnip.bak.bak | 56 +++++++++++++++++++++++++++++++++
 lua/config/completion.lua        | 59 +++++++++++++++++++++++++++++++++++
 lua/config/luasnip.lua           | 67 +++++++++++++++++-----------------------
 lua/config/snippets.lua          | 19 ------------
 4 files changed, 143 insertions(+), 58 deletions(-)
 create mode 100644 lua/config/.bak/.luasnip.bak.bak
 create mode 100644 lua/config/completion.lua
 delete mode 100644 lua/config/snippets.lua

(limited to 'lua')

diff --git a/lua/config/.bak/.luasnip.bak.bak b/lua/config/.bak/.luasnip.bak.bak
new file mode 100644
index 0000000..e0b5617
--- /dev/null
+++ b/lua/config/.bak/.luasnip.bak.bak
@@ -0,0 +1,56 @@
+-- ~/.config/nvim/lua/config/luasnip.lua
+return function()
+    local ls = require("luasnip")
+    local s = ls.snippet
+    local t = ls.text_node
+    local i = ls.insert_node
+
+    -- Minimal test snippets
+    ls.snippets = {
+        all = {
+            s("hi", t("Hello, world!")), -- trigger: hi
+        },
+        lua = {
+            s("fn", { -- trigger: fn
+                t("function "), i(1, "name"), t("("), i(2), t({")", "\t"}),
+                i(0),
+                t({"", "end"})
+            }),
+            s("fori", { -- for loop snippet
+                t("for "), i(1, "i"), t(" = "), i(2, "1"), t(", "), i(3, "10"), t(" do"),
+                t({"", "\t"}), i(0),
+                t({"", "end"})
+            }),
+        },
+    }
+
+    -- Load VSCode-style snippets (optional)
+    require("luasnip.loaders.from_vscode").lazy_load()
+
+    -- Load Lua snippets from a separate file (optional)
+    -- require("luasnip.loaders.from_lua").load({ paths = "~/.config/nvim/lua/config/snippets.lua" })
+
+    local opts = { silent = true, noremap = true }
+
+    -- Expand snippet or jump forward
+    vim.keymap.set({ "i", "s" }, "<C-l>", function()
+        if ls.expand_or_jumpable() then
+            ls.expand_or_jump()
+        end
+    end, opts)
+
+    -- Jump backward
+    vim.keymap.set({ "i", "s" }, "<C-h>", function()
+        if ls.jumpable(-1) then
+            ls.jump(-1)
+        end
+    end, opts)
+
+    -- Cycle choice nodes
+    vim.keymap.set({ "i", "s" }, "<C-k>", function()
+        if ls.choice_active() then
+            ls.change_choice(1)
+        end
+    end, opts)
+end
+
diff --git a/lua/config/completion.lua b/lua/config/completion.lua
new file mode 100644
index 0000000..09a934e
--- /dev/null
+++ b/lua/config/completion.lua
@@ -0,0 +1,59 @@
+-- return a function for lazy.nvim
+return function()
+  local cmp = require("cmp")
+  local luasnip = require("luasnip")
+  local lspkind = require("lspkind")
+
+  -- load friendly-snippets
+  require("luasnip.loaders.from_vscode").lazy_load()
+
+  cmp.setup({
+    snippet = {
+      expand = function(args)
+        luasnip.lsp_expand(args.body)
+      end,
+    },
+    mapping = cmp.mapping.preset.insert({
+      ["<C-b>"] = cmp.mapping.scroll_docs(-4),
+      ["<C-f>"] = cmp.mapping.scroll_docs(4),
+      ["<C-Space>"] = cmp.mapping.complete(),  -- manual trigger
+      ["<CR>"] = cmp.mapping.confirm({ select = true }),
+      ["<Tab>"] = cmp.mapping(function(fallback)
+        if cmp.visible() then
+          cmp.select_next_item()
+        elseif luasnip.expand_or_jumpable() then
+          luasnip.expand_or_jump()
+        else
+          fallback()
+        end
+      end, { "i", "s" }),
+      ["<S-Tab>"] = cmp.mapping(function(fallback)
+        if cmp.visible() then
+          cmp.select_prev_item()
+        elseif luasnip.jumpable(-1) then
+          luasnip.jump(-1)
+        else
+          fallback()
+        end
+      end, { "i", "s" }),
+    }),
+    sources = cmp.config.sources({
+      { name = "nvim_lsp" },
+      { name = "path" },
+      { name = "luasnip" },
+    }, {
+      { name = "buffer" },
+    }),
+    formatting = {
+      format = lspkind.cmp_format({ with_text = true, maxwidth = 50 }),
+    },
+    window = {
+      completion = cmp.config.window.bordered(),
+      documentation = cmp.config.window.bordered(),
+    },
+    completion = {
+      autocomplete = false,  -- only trigger with <C-Space>
+    },
+  })
+end
+
diff --git a/lua/config/luasnip.lua b/lua/config/luasnip.lua
index 54ba5de..4524322 100644
--- a/lua/config/luasnip.lua
+++ b/lua/config/luasnip.lua
@@ -1,47 +1,36 @@
+-- Return a function so we can call it from Lazy.nvim
 return function()
-    local ls = require("luasnip")
-    local s = ls.snippet
-    local t = ls.text_node
-    local i = ls.insert_node
+  local ls = require("luasnip")
 
-    -- Minimal test snippet
-    ls.snippets = {
-        all = {
-            s("hi", t("Hello, world!")),
-        },
-        lua = {
-            s("fn", {
-                t("function "), i(1, "name"), t("("), i(2), t({")", "\t"}),
-                i(0),
-                t({"", "end"})
-            }),
-        },
-    }
+  -- Load snippets from friendly-snippets
+  require("luasnip.loaders.from_vscode").lazy_load()
 
-    local opts = { silent = true, noremap = true }
+  -- Example Lua snippets
+  ls.add_snippets("lua", {
+    ls.parser.parse_snippet("hi", "print('Hello, world!')"),
+    ls.parser.parse_snippet("fn", "function ${1:name}(${2:args})\n\t$0\nend"),
+  })
 
-    -- Expand or jump forward
-    vim.keymap.set({ "i", "s" }, "<C-l>", function()
-        if ls.expand_or_jumpable() then
-            ls.expand_or_jump()
-        end
-    end, opts)
+  local opts = { silent = true, noremap = true }
 
-    -- Jump backward
-    vim.keymap.set({ "i", "s" }, "<C-h>", function()
-        if ls.jumpable(-1) then
-            ls.jump(-1)
-        end
-    end, opts)
+  -- Expand snippet or jump forward
+  vim.keymap.set({ "i", "s" }, "<C-k>", function()
+    if ls.expand_or_jumpable() then
+      ls.expand_or_jump()
+    end
+  end, opts)
 
-    -- Cycle choice nodes
-    vim.keymap.set({ "i", "s" }, "<C-k>", function()
-        if ls.choice_active() then
-            ls.change_choice(1)
-        end
-    end, opts)
+  -- Jump backward
+  vim.keymap.set({ "i", "s" }, "<C-j>", function()
+    if ls.jumpable(-1) then
+      ls.jump(-1)
+    end
+  end, opts)
 
-    -- Load snippets
-    require("luasnip.loaders.from_vscode").lazy_load()
+  -- Change choice in choice node
+  vim.keymap.set({ "i", "s" }, "<C-l>", function()
+    if ls.choice_active() then
+      ls.change_choice(1)
+    end
+  end, opts)
 end
-
diff --git a/lua/config/snippets.lua b/lua/config/snippets.lua
deleted file mode 100644
index 8b0d30b..0000000
--- a/lua/config/snippets.lua
+++ /dev/null
@@ -1,19 +0,0 @@
--- ~/.config/nvim/lua/snippets.lua
-local ls = require("luasnip")
-local s = ls.snippet
-local t = ls.text_node
-local i = ls.insert_node
-
-ls.snippets = {
-  all = {
-    s("hi", t("Hello, world!")),       -- Type "hi" -> expand to Hello, world!
-  },
-  lua = {
-    s("fn", {                           -- Type "fn" -> expand to a function template
-      t("function "), i(1, "name"), t("("), i(2), t({")", "\t"}),
-      i(0),
-      t({"", "end"})
-    }),
-  },
-}
-
-- 
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