nvim/lua/mappings.lua

local s = vim.keymap.set
local telescope = require("telescope.builtin")
local dap = require('dap')
local dapui = require("dapui")

s("i", "<C-h>", "<Left>", { desc = "Move left" })
s("i", "<C-l>", "<Right>", { desc = "Move right" })
s("i", "<C-j>", "<Down>", { desc = "Move down" })
s("i", "<C-k>", "<Up>", { desc = "Move up" })
s("n", "<Esc>", ":noh<CR>", { desc = "Clear highlights" })
s("n", "<leader>!x", "<cmd> bdelete! <CR>", { desc = "Delete buffer !" })

s("n", "<leader>x", "<cmd> BufferClose <CR>",             { desc = "Delete buffer" })
s("n", "<leader>X", "<cmd> BufferCloseAllButPinned <CR>", { desc = "Delete all buffers except pinned" })
s("n", "<a-c-j>",   "<cmd> BufferMoveNext <CR>",          { desc = "Move buffer forward" })
s("n", "<a-c-k>",   "<cmd> BufferMovePrevious <CR>",      { desc = "Move buffer backward" })
s("n", "<a-j>",     "<cmd> BufferNext <CR>",              { desc = "Next buffer" })
s("n", "<a-k>",     "<cmd> BufferPrevious <CR>",          { desc = "Previous buffer" })
s('n', '<leader>p', "<cmd> BufferPin <cr>",               { desc = "Pin/Unpin buffer" })

s('n', '<c-c><c-c>', '<cmd>wq<CR>', { desc = 'Write and exit'} )
s("n", "ZZ", "<cmd> q! <CR>", { desc = "Quit without saving" })
s("n", "q:", "<nop>")
s('n', 'H', require('treesj').toggle)
s('n', '<leader>ff', "<cmd> Telescope find_files follow=true <CR>")
s('v', '<leader>ff', '"hy<ESC>:Telescope find_files follow=true  default_text=<c-r>h<CR>', default_opts)
s('n', '<leader>fg', "<cmd> Telescope live_grep <CR>")
s('v', '<leader>fg', '"hy<ESC>:Telescope live_grep default_text=<c-r>h<CR>', default_opts)
s('n', '<leader>fF', "<cmd> Telescope find_files follow=true no_ignore=true hidden=true <CR>")
s('n', '<leader>ft', MiniFiles.open, { desc = "Open file tree" })
s('n', '<leader>N', "<cmd> Neogit <cr>", { desc = "Open Neogit" })
-- s('x', 'p', 'p:let @+=@0<CR>:let @"=@0<CR>')
s('x', 'p', 'P')
s('n', 'gh', ":Ouroboros<cr>", { desc = "Go to header/implementation" })
s('t', '<A-Esc>', '<C-\\><C-n>', { desc = "Escape terminal mode"})

-- Luasnip
local ls = require("luasnip")
s({ "i", "s" }, "<A-j>", function() ls.jump(1) end, { silent = true })
s({ "i", "s" }, "<A-k>", function() ls.jump(-1) end, { silent = true })

-- Hop
s({ 'n', 'v' }, 'f', "<cmd> HopWord <cr>", { desc = "HopWord" })

-- marks
for _, key in ipairs({"A", "Z", "E", "Q", "S", "D"}) do
  s({ 'n' }, "<A-" .. key .. ">", "m" .. key, { desc = "Set mark " .. key })
  s({ 'n' }, "<A-" .. string.lower(key) .. ">", "g'" .. key, { desc = "Jump to mark " .. key })
end

s("n", "<leader>tw", "<cmd> set wrap! <cr>", { desc = "toggle line wrap" })

local toggle_lsp_virtual_text = function ()
  vim.diagnostic.config({
    virtual_text = not vim.diagnostic.config().virtual_text
  })
end
s("n", "<leader>tv", toggle_lsp_virtual_text, { desc = "toggle virtual text for diagnostics" })


function copy_filename_and_line ()
  local filename = vim.fn.expand("%")
  local line = vim.fn.line(".")
  local text = filename .. ":" .. line
  vim.fn.setreg("+", text)
  vim.print(text)
end

s({ 'n' }, "y<c-g>", copy_filename_and_line, { desc = "Copy filename and line"})


function moveCursorToMouse()
  local mousePos = vim.fn.getmousepos()
  vim.fn.setpos(".", { 0, mousePos.line, mousePos.column, 0 })
end

function dap_or(func)
  return function ()
    if dap.session() then
      dapui.eval()
    else
      func()
    end
  end
end


vim.api.nvim_create_autocmd('LspAttach', {
  group = vim.api.nvim_create_augroup('UserLspConfig', {}),
  callback = function(ev)
    vim.bo[ev.buf].omnifunc = 'v:lua.vim.lsp.omnifunc'

    local opts = { buffer = ev.buf }
    s('n', '<leader>e', vim.diagnostic.open_float, { buffer = ev.buf, desc = "Show diagnostics" })
    s('n', '[[', vim.diagnostic.goto_prev, { buffer = ev.buf, desc = "Previous diagnostic" })
    s('n', ']]', vim.diagnostic.goto_next, { buffer = ev.buf, desc = "Next diagnostic" })
    s( 'n', ']e',
      function ()
        vim.diagnostic.goto_next({severity=vim.diagnostic.severity.ERROR, wrap = true})
      end,
      { buffer = ev.buf, desc = "Next error" }
    )
    s( 'n', '[e',
      function ()
        vim.diagnostic.goto_prev({severity=vim.diagnostic.severity.ERROR, wrap = true})
      end,
      { buffer = ev.buf, desc = "Previous error" }
    )
    s('n', '<leader>q', vim.diagnostic.setloclist, { buffer = ev.buf, desc = "Set location list" })
    s('n', 'gD', vim.lsp.buf.declaration, { buffer = ev.buf, desc = "Goto declaration" })
    s('n', 'gd', telescope.lsp_definitions, { buffer = ev.buf, desc = "Goto definition" })
    s( {'n', 'v'}, '<c-k>', dap_or(vim.lsp.buf.signature_help), { buffer = ev.buf, desc = "dap eval" })
    s(
      {'n', 'v'}, '<RightMouse>',
      function() moveCursorToMouse() dap_or(vim.lsp.buf.hover)() end,
      { buffer = ev.buf, desc = "Hover" }
    )
    s('n', 'gi', telescope.lsp_implementations, { buffer = ev.buf, desc = "Goto implementation" })
    -- s('n', '<c-k>', vim.lsp.buf.signature_help, { buffer = ev.buf, desc = "Signature help" })
    s('n', '<leader>D', vim.lsp.buf.type_definition, { buffer = ev.buf, desc = "Goto type definition" })
    s({ 'n', 'v' }, '<leader>ca', vim.lsp.buf.code_action, { buffer = ev.buf, desc = "Code action" })
    s('n', 'gr', telescope.lsp_references, { buffer = ev.buf, desc = "Goto references" })
    s({ 'n', 'v' }, '<leader>fm', ":Format<cr>", { buffer = ev.buf, desc = "Format" })
    s({ 'v' }, '<leader>fl', ":!aligner.py<cr>", { buffer = ev.buf, desc = "Format signature" })
    s('n', '<MiddleMouse>', '<LeftMouse> :lua vim.lsp.buf.definition()<cr>',
      { buffer = ev.buf, desc = "Goto definition" })
  end,
})

function continue()
  if dap.session() then
    if dap.status() == "stopped" then
      dap.continue()
    end
    dap.continue()
  else
    launchjs()
    dap.continue()
  end
end

s('n', '<leader>b', dap.toggle_breakpoint, { desc = "Toggle breakpoint" })
s('n', '<leader>B', function()
  local condition = vim.fn.input("Condition: ", "", "customlist,Complete")
  dap.set_breakpoint(condition)
end, { desc = "Add conditional breakpoint" })
s('n', '<leader>w', dapui.elements.watches.add, { desc = "Add watch" })
s('v', '<leader>w', dapui.elements.watches.add, { desc = "Add watch" })
s('n', '<f2>', dapui.toggle, { desc = "Toggle debygger UI" })
s('n', '<f3>', dap.pause, { desc = "Pause" })
s('n', '<f5>', continue, { desc = "Continue" })
s('n', '<f4>', dap.restart, { desc = "Restart" })
s('n', '<f6>', dap.step_into, { desc = "Step into" })
s('n', '<f7>', dap.step_over, { desc = "Step over" })
s('n', '<f8>', dap.step_out, { desc = "Step out" })
s('n', '<f9>', dap.run_to_cursor, { desc = "Run to cursor" })
s('n', '<f10>', dap.step_back, { desc = "Step back" })
s('n', '<A-u>', dap.up, { desc = "Up" })
s('n', '<A-d>', dap.down, { desc = "Down" })
-- s('n', '<rightmouse>', dapui.eval, { desc = "Eval" })
-- s('n', '<rightmouse>', '<LeftMouse> :lua require("dapui").eval()<cr>', { desc = "Eval" })
s('n', '<f12>', function()
  dapui.close()
  dap.terminate()
end, { desc = "Close debugger" })