dotfiles/.config/nvim/lua/keymap.lua

-- setup keymap function
local m = require("mapx").setup({ global = true, whichkey = true })

-- setup keymap groups
m.nname("g", "LSP: goto")
m.nname("gp", "LSP: preview")
m.cname("w", "Write")
m.cname("w!", "Write: overwrite")
m.nname("<leader>g", "Git")
m.nname("<leader>f", "Telescope: find ...")
m.nname("<leader>gd", "Git: diff")
m.nname("<leader>s", "Substitute")
m.nname("<leader>t", "Terminal")
m.nname("<C-W>", "Navigation")

-- unmap unwanted commands
m.nnoremap("Zt", "<NOP>")
m.nnoremap("ZT", "<NOP>")
m.nnoremap("<Space>", "<NOP>")
m.inoremap("<F2>", "<NOP>")
m.inoremap("<F3>", "<NOP>")
m.inoremap("<F4>", "<NOP>")
m.inoremap("<F5>", "<NOP>")
m.inoremap("<F6>", "<NOP>")
m.inoremap("<F8>", "<NOP>")
m.inoremap("<F9>", "<NOP>")
m.nnoremap("<F9>", "<NOP>")
m.inoremap("<F10>", "<NOP>")
m.nnoremap("<F10>", "<NOP>")
m.inoremap("<F11>", "<NOP>")
m.nnoremap("<F11>", "<NOP>")
m.inoremap("<F12>", "<NOP>")
m.nnoremap("<F12>", "<NOP>")

-- spell
m.nmap("<F6>s", "z=", "Spell: display suggestions")

-- shortcuts for quitting
m.nnoremap("ZA", ":xa<CR>", "Exit: write and quit all buffers")
m.nnoremap("ZQ", ":conf q<CR>", "Exit: quit current buffer")
m.nnoremap("ZZ", ":x<CR>", "Exit: write and quit current buffer")

-- shortcut for split navigation
m.nnoremap("<C-h>", "<C-w>h", "Navigation: go to left window")
m.nnoremap("<C-j>", "<C-w>j", "Navigation: go to lower window")
m.nnoremap("<C-k>", "<C-w>k", "Navigation: go to upper window")
m.nnoremap("<C-l>", "<C-w>l", "Navigation: go to right window")

-- remap for dealing with word wrap
m.nmap(
  "j",
  "v:count == 0 ? 'gj' : 'j'",
  { "expr", "silent" },
  "Navigation: go down in wrapped lines"
)
m.nmap("k", "v:count == 0 ? 'gk' : 'k'", { "expr", "silent" }, "Navigation: go up in wrapped lines")

-- compiler for languages
m.nnoremap("<leader>c", ":w! | !compiler <c-r>%<CR>", "Compile: current file")

-- save file as sudo on files that require root permission
m.cnoremap(
  "w!!",
  'execute "silent! write !sudo tee % >/dev/null" <bar> edit!',
  "Write: overwrite file over with sudo"
)

-- tpope/vim-abolish
m.nnoremap("<leader>sa", ":%S//g<Left><Left>", "Substitute: free form")
m.nnoremap("<leader>ss", ":%S/\\<<C-r><C-w>\\>//g<Left><Left>", "Substitute: word under cursor")

-- simrat39/symbols-outline.nvim
m.nmap("<F3>", ":SymbolsOutline<CR>", "CTags: toggle")

-- nvim-tree/nvim-tree.lua
m.nmap("<F2>", ":NvimTreeToggle toggle<CR>", "File tree: toggle")

-- mbbill/undotree
m.nmap("<F1>", ":UndotreeToggle<CR>", "Undo tree: toggle")

-- amrbashir/nvim-docs-view
m.nnoremap("go", ":DocsViewToggle<CR>", "LSP: toggle documentation window")

-- numtostr/fterm.nvim
m.nnoremap("<leader>tt", require("FTerm").toggle, "Terminal: open")
m.tnoremap("<leader>tt", require("FTerm").toggle, "Terminal: open")
local lazygit = require("FTerm"):new({
  cmd = "lazygit",
})
m.nnoremap("<leader>gt", function()
  lazygit:toggle()
end, "Git: open lazygit")
m.tnoremap("<leader>gt", function()
  lazygit:toggle()
end, "Git: open lazygit")
m.nnoremap("<leader>tg", function()
  lazygit:toggle()
end, "Terminal: open lazygit")
m.tnoremap("<leader>tg", function()
  lazygit:toggle()
end, "Terminal: open lazygit")

-- sindrets/diffview.nvim
m.nmap("<leader>gdo", ":DiffviewOpen<CR>", "Git: open diff")
m.nmap("<leader>gdc", ":DiffviewClose<CR>", "Git: close diff")

-- folke/trouble.nvim
m.nmap("<leader>x", ":TroubleToggle<CR>", "LSP: toggle error list")

-- hrsh7th/nvim-cmp
m.nnoremap("gd", vim.lsp.buf.definition(), "LSP: goto definition")
m.nnoremap("gD", vim.lsp.buf.declaration(), "LSP: goto declaration")
m.nnoremap("gi", vim.lsp.buf.implementation(), "LSP: list implementation")
m.nnoremap("gr", function()
  vim.lsp.buf.references()
end, "LSP: list references")
m.nnoremap("gy", vim.lsp.buf.type_definition(), "LSP: goto type definition")
m.nnoremap("K", vim.lsp.buf.hover(), "LSP: show documentation")
m.nnoremap("<F8>", function()
  require("conform").format({ async = true, lsp_fallback = true })
end, "LSP: format")

-- rmagatti/goto-preview
m.nnoremap("gpd", function()
  require("goto-preview").goto_preview_definition()
end, "LSP: preview definition")
m.nnoremap("gpy", function()
  require("goto-preview").goto_preview_type_definition()
end, "LSP: preview type definition")
m.nnoremap("gpi", function()
  require("goto-preview").goto_preview_implementation()
end, "LSP: list preview implementation")
m.nnoremap("gpD", function()
  require("goto-preview").goto_preview_declaration()
end, "LSP: preview declaration")
m.nnoremap("gpr", function()
  require("goto-preview").goto_preview_references()
end, "LSP: list preview references")
m.nnoremap("gpc", function()
  require("goto-preview").close_all_win()
end, "LSP: close all preview windows")

-- filipdutescu/renamer.nvim
m.nnoremap("<F5>", function()
  require("renamer").rename()
end, "LSP: rename")

-- nvim-telescope/telescope.nvim
m.nnoremap("<F4>", ":Telescope find_files<CR>", "Telescope: find files")
m.nnoremap("<leader>ff", ":Telescope find_files<CR>", "Telescope: find files")

-- kamykn/spelunker.vim
m.nnoremap("<F6>t", ":call spelunker#toggle()<CR>", "Spelunker: toggle spell check")
m.nnoremap("<F6>l", function()
  if vim.opt.spelllang._value == "de_de" then
    vim.opt.spelllang = "en_us"
    print("Spell language set to en_us")
  else
    vim.opt.spelllang = "de_de"
    print("Spell language set to de_de")
  end
  vim.opt.spell = false
end, "Spell: toggle spell language")

-- kevinhwang91/nvim-ufo
m.nnoremap("K", function()
  local winid = require("ufo").peekFoldedLinesUnderCursor()
  if not winid then
    vim.lsp.buf.hover()
  end
end, "LSP: peek folded section")

-- kevinhwang91/nvim-hlslens
m.nnoremap(
  "n",
  [[<Cmd>execute('normal! ' . v:count1 . 'n')<CR><Cmd>lua require('hlslens').start()<CR>]],
  "silent",
  "Search: search forward"
)
m.nnoremap(
  "N",
  [[<Cmd>execute('normal! ' . v:count1 . 'N')<CR><Cmd>lua require('hlslens').start()<CR>]],
  "silent",
  "Search: search backwards"
)

-- sindrets/winshift.nvim
m.nnoremap("<C-W>m", ":WinShift<CR>", "Navigation: enter window shift mode")

-- ggandor/leap.nvim
m.nnoremap("f", "<Plug>(leap-forward)", "Navigation: enter leap mode for forward movement")
m.nnoremap("F", "<Plug>(leap-backward)", "Navigation: enter leap mode for backwards movement")
m.nnoremap("gf", "<Plug>(leap-from-window)", "Navigation: enter leap mode for other windows")

-- gnikdroy/projections.nvim
m.nnoremap("<leader>fp", function()
  vim.cmd("Telescope projections")
end, "Telescope: find projects")