-- Change files in place
vim.o.backupcopy = 'yes'

-- Disable auto comment
vim.cmd.autocmd('FileType', '*', 'setlocal', 'formatoptions-=cro')

-- Disable double spaces when joining
vim.o.joinspaces = false

-- Code folding
vim.o.foldmethod = 'indent'
vim.o.foldlevel = 99

-- Indentation
vim.o.tabstop = 2
vim.o.shiftwidth = 2
vim.o.softtabstop = -1
vim.o.expandtab = true

-- Visible line breaks
vim.o.list = true
vim.o.listchars = 'eol:¬'

-- Relative line numbers
vim.o.number = true
vim.o.relativenumber = true

-- 80 character indication
vim.o.colorcolumn = '80'

-- Status window height
vim.o.previewheight = 30

-- Theme
vim.o.termguicolors = true
vim.cmd.colorscheme('slate')

-- Keyboard shortcuts
vim.keymap.set('n', '<c-n>', ':bn<cr>', { silent = true })
vim.keymap.set('n', '<c-p>', ':bp<cr>', { silent = true })
vim.keymap.set('n', '<c-l>', ':noh<cr><c-l>')
vim.keymap.set('n', 'gp', "'[V']", { remap = true })
vim.keymap.set('i', '<c-b>', '{}<left>', { silent = true } )
vim.keymap.set('i', '<c-b> ', '{  }<left><left>', { silent = true } )
vim.keymap.set('i', '<c-b><cr>', '{<cr>}O', { silent = true } )
vim.keymap.set('i', '<c-space>', '<space>', { remap = true })

-- Add command to show help in current window
vim.api.nvim_create_user_command('Help', function(a)
  -- Create empty 'help' buffer
  vim.cmd.enew()
  vim.o.buftype = 'help'
  local buf = vim.fn.bufnr('%')

  -- Show help and handle errors
  ok, msg = pcall(vim.cmd.help, a.fargs[1] or "help.txt")
  if not ok then vim.notify(msg, vim.log.levels.ERROR); vim.cmd.bp() end

  -- Wipe out empty buffer if not taken over
  if vim.fn.bufnr('%') ~= buf then vim.cmd.bwipeout(buf) end
end, { nargs = '?', bar = true, complete = 'help' })

-- Add command line abbreviations if at start of line
for i, word in ipairs { 'h', 'he', 'hel', 'help' } do
  vim.cmd.cabbrev { word, string.format(
    '<c-r>=(getcmdtype() == ":" && getcmdpos() == 1) ? "Help" : "%s"<cr>',
    word
  )}
end

-- Source init directory
vim.cmd 'runtime! init/*.lua'