nvim/lua/keymaps.lua

-- Remap space as leader key
vim.keymap.set("", "<Space>", "<Nop>", { silent = true })
vim.g.mapleader = " "
vim.g.maplocalleader = " "

-- Modes  test
--   normal_mode = "n",
--   insert_mode = "i",
--   visual_mode = "v",
--   visual_block_mode = "x",
--   term_mode = "t",
--   command_mode = "c",

local nvx = { "n", "v", "x" }

require("util").keymaps({
  -- =============
  -- n/v/x
  -- =============
  { ";",         ":",          desc = "No shift to enter command mode with semicolon. Alias ; to :", mode = nvx },
  { "<leader>a", "<esc>ggVG",  desc = "Select all",                                                  mode = nvx },
  { "<leader>w", ":w<cr>", desc = "Save",                                                        mode = nvx },
  {
    "<leader>q",
    function()
      -- Use to have this which always closed and quit ont he last screen: ":confirm q<cr>"
      -- Instead I want this behavior:
      -- if only 1 screen is open then close all buffers, resulting in a blank unnamed buffer window similar to fresh session
      -- else if more than 1 screen, confirm q to close that screen
      -- Check the number of screens
      if vim.fn.winnr("$") == 1 then
        -- If only 1 screen is open then close all buffers, resulting in a blank unnamed buffer window similar to fresh session
        vim.cmd("bufdo bd")
        vim.cmd("SessionDelete")
      else
        -- If more than 1 screen, confirm q to close that screen
        vim.cmd("confirm q")
      end
    end,
    desc = "Quit",
    mode = nvx,
  },
  { "Q",         ":Neotree close<cr>:qa<CR>", desc = "Quit all", mode = nvx },
  { "<leader>Q", "<nop>",                             mode = nvx }, -- don't do normal Q quit
  {
    "<leader>QQ",
    ":Neotree close<cr>:SessionDelete<cr>:qa<CR>",
    desc = "Quit all, no session saved",
    mode = nvx,
  },
  { "<leader>y",  '"+y',                  desc = "Copy to system clipboard",    mode = nvx },
  { "<leader>p",  '"+p',                  desc = "Paste from system clipboard", mode = nvx },
  { "<leader>bq", ":bp|bd #<cr>",     desc = "Close current buffer only",   mode = nvx },
  { "<leader>tn", ":tabnew<cr>",      desc = "Create new tab",              mode = nvx },
  { "<leader>tq", ":tabclose<cr>",    desc = "Close current tab",           mode = nvx },
  { "H",          ":tabprevious<cr>", desc = "Move to previous tab",        mode = nvx },
  { "L",          ":tabnext<cr>",     desc = "Move to next tab",            mode = nvx },
  { "|",          ":vsplit<cr>",      desc = "Vertical Split",              mode = nvx },
  { "\\",         ":split<cr>",       desc = "Horizontal Split",            mode = nvx },
  {
    "<leader>S",
    ":set equalalways<cr>:set noequalalways<cr>",
    desc = "Equalize/resize screens evenly",
    mode = nvx,
  },
  { "<C-h>", "<C-w>h",      desc = "Move window left current",  mode = nvx },
  { "<C-j>", "<C-w>j",      desc = "Move window below current", mode = nvx },
  { "<C-k>", "<C-w>k",      desc = "Move window above current", mode = nvx },
  { "<C-l>", "<C-w>l",      desc = "Move window right current", mode = nvx },
  { "B",     ":b#<cr>", desc = "Switch to last buffer",     mode = nvx },
  {
    "<leader>l<leader>",
    function()
      -- vim.cmd "SqlxFormat"
      vim.lsp.buf.format()
    end,
    desc = "Reformat file",
    mode = nvx,
  },
  {
    "<leader>ls<leader>",
    ":SqlxFormat<cr>",
    desc = "Format sqlx queries in rust raw string literals.",
    mode = nvx,
  },
  {
    "<leader>ld",
    function()
      vim.diagnostic.open_float()
    end,
    desc = "Show diagnostic message",
    mode = nvx,
  },
  {
    "<leader>ll",
    function()
      vim.diagnostic.setloclist()
    end,
    desc = "Show diagnostic list",
    mode = nvx,
  },

  -- =============
  -- normal mode
  -- =============
  { "n",        "nzzzv",            desc = "Next search result centered" },
  { "N",        "Nzzzv",            desc = "Previous search result centered" },
  { "<esc>",    ":noh<CR><esc>",    desc = "Clear search on escape" },
  { "<return>", ":noh<CR><return>", desc = "Clear search on return" },
  { "<C-d>",    "<C-d>zz",          desc = "Vertical half page down and center cursor" },
  { "<C-u>",    "<C-u>zz",          desc = "Vertical half page up and center cursor" },
  { "J",        "mzJ`z",            desc = "Move line below onto this line" },
  { "<S-Tab>",  "<C-o>",            desc = "Go back <C-o>" },

  -- =============
  -- VISUAL
  -- =============
  {
    "J",
    ":m '>+1<CR>gv=gv",
    desc = "Visually move block down",
    mode = "v",
  },
  {
    "K",
    ":m '<-2<CR>gv=gv",
    desc = "Visually move block up",
    mode = "v",
  },
  {
    "<leader>,uu",
    'd:let @u = trim(tolower(system("uuidgen")))<cr>i<C-r>u',
    desc = "Generate and replace UUID",
    mode = "v",
  },
  { "p",     '"_dP',                         desc = "Paste without yanking replaced content", mode = "v" },
  { "<C-r>", '"hy:%s/<C-r>h//g<left><left>', desc = "Replace current selection",              mode = "v" },
  { ">",     "> gv",                         desc = "Indent selection",                       mode = "v" },
  { "<",     "< gv",                         desc = "Outdent selection",                      mode = "v" },

  -- =============
  -- insert / command
  -- =============
  { "<C-k>", "<Up>",                         desc = "Up",                                     mode = { "i", "c" } },
  { "<C-j>", "<Down>",                       desc = "Down",                                   mode = { "i", "c" } },
  { "<C-h>", "<Left>",                       desc = "Left",                                   mode = { "i", "c" } },
  { "<C-l>", "<Right>",                      desc = "Right",                                  mode = { "i", "c" } },
  { "<C-4>", "<End>",                        desc = "End",                                    mode = { "i", "c" } },
  { "<C-6>", "<Home>",                       desc = "Home",                                   mode = { "i", "c" } },
  -- =============
  -- command
  -- =============
  -- { mode = "c" }
  -- =============
  -- terminal
  -- =============
  { "<Esc>", "<C-\\><C-n>",                  desc = "Escape the terminal",                    mode = "t" },
})