From 1fa7dd0709e3372dfa9d547a23ea441fdaf32630 Mon Sep 17 00:00:00 2001
From: Mora Unie Youer <mora_unie_youer@riseup.net>
Date: Thu, 6 Mar 2025 20:54:40 +0300
Subject: feat: finally working LSP

---
 flake.nix                         |  6 +++---
 lsp/lua-language-server.lua       | 18 +++++++++++++++++
 lua/config/init.lua               |  3 +++
 lua/config/lsp.lua                |  1 +
 lua/config/plugins/completion.lua | 41 ++++++++++++++++++++++++++++++++++++++-
 lua/config/plugins/init.lua       |  1 -
 lua/config/plugins/lsp.lua        |  1 -
 7 files changed, 65 insertions(+), 6 deletions(-)
 create mode 100644 lsp/lua-language-server.lua
 create mode 100644 lua/config/lsp.lua
 delete mode 100644 lua/config/plugins/lsp.lua

diff --git a/flake.nix b/flake.nix
index 79094c6..9d55717 100644
--- a/flake.nix
+++ b/flake.nix
@@ -101,8 +101,9 @@
       # at RUN TIME for plugins. Will be available to PATH within neovim terminal
       # this includes LSPs
       lspsAndRuntimeDeps = {
-        general = with pkgs; [
-        ];
+        general = with pkgs; {
+          lua = [ lua-language-server ];
+        };
       };
 
       # This is for plugins that will load at startup without using packadd:
@@ -136,7 +137,6 @@
 
           completion = [ blink-cmp ];
           # NOTE: On NeoVim 0.11+ nvim-lspconfig is not required due to native API
-          # lsp = [ nvim-lspconfig mason-nvim mason-lspconfig-nvim ];
           lsp = [];
 
           mini = [ mini-ai mini-align mini-move mini-pairs mini-surround ];
diff --git a/lsp/lua-language-server.lua b/lsp/lua-language-server.lua
new file mode 100644
index 0000000..3f5f308
--- /dev/null
+++ b/lsp/lua-language-server.lua
@@ -0,0 +1,18 @@
+return {
+  cmd = { "lua-language-server" },
+  root_markers = { ".luarc.json" },
+  filetypes = { "lua" },
+
+  settings = {
+    Lua = {
+      runtime = { version = "LuaJIT" },
+      formatters = { ignoreComments = true },
+      signatureHelp = { enabled = true },
+      diagnostics = {
+        globals = { "nixCats", "vim" },
+        disable = { "missing-fields" },
+      },
+      telemetry = { enabled = false },
+    },
+  },
+}
diff --git a/lua/config/init.lua b/lua/config/init.lua
index 0c5bcb6..3517725 100644
--- a/lua/config/init.lua
+++ b/lua/config/init.lua
@@ -3,4 +3,7 @@ require("config.options")
 -- require("lze").register_handlers(require("nixCatsUtils.lzUtils").for_cat)
 require("lze").register_handlers(require("lzextras").lsp)
 
+vim.lsp.set_log_level("debug")
+
 require("config.plugins")
+require("config.lsp")
diff --git a/lua/config/lsp.lua b/lua/config/lsp.lua
new file mode 100644
index 0000000..c8444ef
--- /dev/null
+++ b/lua/config/lsp.lua
@@ -0,0 +1 @@
+vim.lsp.enable("lua-language-server")
diff --git a/lua/config/plugins/completion.lua b/lua/config/plugins/completion.lua
index 7fd31c4..5b60993 100644
--- a/lua/config/plugins/completion.lua
+++ b/lua/config/plugins/completion.lua
@@ -3,7 +3,46 @@ return {
     "blink.cmp",
     event = "DeferredUIEnter",
     after = function(_)
-      require("blink.cmp").setup({})
+      require("blink.cmp").setup({
+        appearance = {
+          use_nvim_cmp_as_default = false,
+          nerd_font_variant = "mono",
+        },
+
+        completion = {
+          documentation = {
+            auto_show = true,
+            auto_show_delay_ms = 500,
+          },
+
+          ghost_text = { enabled = true },
+        },
+
+        sources = { default = { "lsp", "path", "snippets", "buffer" } },
+
+        keymap = {
+          ["<S-space>"] = { "show", "show_documentation", "hide_documentation" },
+          ["<C-e>"] = { "hide", "fallback" },
+          ["<CR>"] = { "accept", "fallback" },
+
+          ["<Tab>"] = { "snippet_forward", "fallback" },
+          ["<S-Tab>"] = { "snippet_backward", "fallback" },
+
+          ["<Up>"] = { "select_prev", "fallback" },
+          ["<Down>"] = { "select_next", "fallback" },
+          ["<C-p>"] = { "select_prev", "fallback_to_mappings" },
+          ["<C-n>"] = { "select_next", "fallback_to_mappings" },
+
+          ["<C-b>"] = { "scroll_documentation_up", "fallback" },
+          ["<C-f>"] = { "scroll_documentation_down", "fallback" },
+        },
+      })
+
+      -- NOTE: this is broken due to something
+      -- local client_capabilities = vim.lsp.protocol.make_client_capabilities()
+      -- local blink_capabilities = require("blink.cmp").get_lsp_capabilities()
+      -- local capabilities = vim.tbl_deep_extend('force', client_capabilities, blink_capabilities)
+      -- vim.lsp.config("*", { capabilities = capabilities })
     end,
   }
 }
diff --git a/lua/config/plugins/init.lua b/lua/config/plugins/init.lua
index a93419f..a1492e7 100644
--- a/lua/config/plugins/init.lua
+++ b/lua/config/plugins/init.lua
@@ -29,6 +29,5 @@ require("lze").load({
   { import = "config.plugins.treesitter" },
   { import = "config.plugins.mini" },
   { import = "config.plugins.completion" },
-  { import = "config.plugins.lsp" },
   { import = "config.plugins.extra" },
 })
diff --git a/lua/config/plugins/lsp.lua b/lua/config/plugins/lsp.lua
deleted file mode 100644
index a564707..0000000
--- a/lua/config/plugins/lsp.lua
+++ /dev/null
@@ -1 +0,0 @@
-return {}
-- 
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