feat(neovim): major lsp refactor and some more lazy loading

1 files changed, 58 insertions, 0 deletions

diff --git a/.config/nvim/lua/custom/configs/lsp-keymaps.lua b/.config/nvim/lua/custom/configs/lsp-keymaps.lua
new file mode 100644
index 0000000..f43a03e
--- /dev/null
+++ b/.config/nvim/lua/custom/configs/lsp-keymaps.lua
@@ -0,0 +1,58 @@
+local severity = vim.diagnostic.severity
+local function next_diagnostic(diagnostic_severity)
+    return function()
+        require('lspsaga.diagnostic'):goto_next({ severity = diagnostic_severity })
+    end
+end
+local function prev_diagnostic(diagnostic_severity)
+    return function()
+        require('lspsaga.diagnostic'):goto_prev({ severity = diagnostic_severity })
+    end
+end
+local function cursor_diagnostics()
+    vim.diagnostic.open_float({
+        scope = 'cursor',
+        border = 'single',
+    })
+end
+
+local keymaps = {
+    { 'n',          'gd',         '<cmd>Telescope lsp_definitions<cr>',       { desc = '[G]oto [D]efinition' } },
+    { 'n',          'gu',         '<cmd>Telescope lsp_references<cr>',        { desc = '[G]oto [U]sages' } },
+    { 'n',          'gi',         '<cmd>Telescope lsp_implementations<cr>',   { desc = '[G]oto [I]mplementations' } },
+    { 'n',          'gt',         '<cmd>Telescope lsp_type_definitions<cr>',  { desc = '[G]oto [T]ype Definitions' } },
+    { 'n',          '<leader>ds', '<cmd>Telescope lsp_document_symbols<cr>',  { desc = '[D]ocument [S]symbols' } },
+    { 'n',          '<leader>ps', '<cmd>Telescope lsp_workspace_symbols<cr>', { desc = '[P]roject [S]ymbols' } },
+    { { 'n', 'i' }, '<C-p>',      vim.lsp.buf.signature_help,                 { desc = 'Show [P]arameters' } },
+    { 'n',          'K',          '<cmd>Lspsaga hover_doc<cr>',               { desc = 'Documentation' } },
+    { 'n',          'R',          '<cmd>Lspsaga rename<cr>',                  { desc = '[R]ename' } },
+    { { 'n', 'i' }, '<M-Enter>',  '<cmd>Lspsaga code_action<cr>',             { desc = 'Code Actions' } },
+    { 'n',          '<leader>ca', '<cmd>Lspsaga code_action<cr><Esc>',        { desc = '[C]ode [A]ctions' } },
+    { 'n',          'ge',         next_diagnostic(severity.ERROR),            { desc = '[G]oto [E]rror' } },
+    { 'n',          'gE',         prev_diagnostic(severity.ERROR),            { desc = '[G]oto [E]rror (prev)' } },
+    { 'n',          'gw',         next_diagnostic(severity.ERROR),            { desc = '[G]oto [W]arning' } },
+    { 'n',          'gW',         prev_diagnostic(severity.ERROR),            { desc = '[G]oto [W]arning (prev)' } },
+    { 'n',          '<leader>D',  cursor_diagnostics,                         { desc = '[D]iagnostics under cursor' } },
+}
+
+local M = {}
+
+--- Registers LSP keymaps for the given buffer
+---@param bufnr number: the id of the buffer
+M.setup = function(bufnr)
+    for _, keymap in ipairs(keymaps) do
+        local mode = keymap[1]
+        local lhs = keymap[2]
+        local rhs = keymap[3]
+        local opts = keymap[4]
+
+        if not opts then
+            opts = {}
+        end
+
+        opts.buffer = bufnr
+        vim.keymap.set(mode, lhs, rhs, opts)
+    end
+end
+
+return M