1 files changed, 114 insertions, 0 deletions
diff --git a/private_dot_config/nvim/lua/lsp_conf.lua b/private_dot_config/nvim/lua/lsp_conf.lua
new file mode 100644
index 0000000..a93dc5b
--- /dev/null
+++ b/private_dot_config/nvim/lua/lsp_conf.lua
@@ -0,0 +1,114 @@
+local nvim_lsp = require('lspconfig')
+local trouble = require("trouble")
+
+local capabilities = require("cmp_nvim_lsp").default_capabilities()
+
+-- Redefine LSP diagnostic signs
+local signs = { Error = 'E', Warning = 'W', Hint = 'H', Information = 'I' }
+
+for type, icon in pairs(signs) do
+  local hl = 'DiagnosticSign' .. type
+  vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = '' })
+end
+
+local opts = { noremap=true, silent=true }
+
+-- Setup lsp_signature for function signature help
+require "lsp_signature".setup()
+
+-- Common on_attach function to handle keymaps and settings for all LSPs
+local common_on_attach = function(client, bufnr)
+    -- Key mappings
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "gD", "<cmd>lua vim.lsp.buf.declaration()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "gd", "<cmd>lua vim.lsp.buf.definition()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "ga", "<cmd>lua vim.lsp.buf.code_action()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "K", "<cmd>lua vim.lsp.buf.hover()<CR>", opts)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "gr", "<cmd>lua vim.lsp.buf.references()<CR>", opts)
+    -- Use vim.diagnostic.open_float for showing line diagnostics (replacing deprecated call)
+    vim.api.nvim_buf_set_keymap(bufnr, "n", "<space>e", "<cmd>lua vim.diagnostic.open_float()<CR>", opts)
+    vim.keymap.set('n', '<A-f>', '<cmd>lua vim.lsp.buf.format {async = true}<cr>', opts)
+    
+    -- Autoformat on save
+    vim.cmd("autocmd BufWritePre <buffer> lua vim.lsp.buf.format {async = true}")
+end
+
+-- LSP servers setup
+local servers = {
+    'clangd',
+    'gopls',
+    'jdtls',
+    'metals',
+    'ocamllsp',
+    'ruff_lsp',
+    'rust_analyzer',
+}
+
+capabilities.offsetEncoding = { "utf-16" }
+
+for _, lsp in ipairs(servers) do
+    nvim_lsp[lsp].setup {
+      capabilities = capabilities,
+      on_attach = common_on_attach,
+      flags = {
+        debounce_text_changes = 150,
+      }
+    }
+end
+
+nvim_lsp.ts_ls.setup {
+  capabilities = capabilities,
+  on_attach = common_on_attach,
+  filetypes = { "typescript", "typescriptreact", "typescript.tsx" },
+  cmd = { "typescript-language-server", "--stdio" }
+}
+
+vim.lsp.inlay_hint.enable(true, { 0 })
+
+-- Trouble setup
+trouble.setup({
+    use_diagnostic_signs = true,
+    auto_close = true,
+    auto_open = false
+})
+
+-- nvim-cmp setup for autocompletion
+local luasnip = require 'luasnip'
+local cmp = require 'cmp'
+cmp.setup {
+  snippet = {
+    expand = function(args)
+      luasnip.lsp_expand(args.body)
+    end,
+  },
+  mapping = cmp.mapping.preset.insert({
+    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+    ['<C-f>'] = cmp.mapping.scroll_docs(4),
+    ['<C-Space>'] = cmp.mapping.complete(),
+    ['<CR>'] = cmp.mapping.confirm {
+      behavior = cmp.ConfirmBehavior.Replace,
+      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 = {
+    { name = 'nvim_lsp' },
+    { name = 'luasnip' },
+  },
+}