-- reduce boilerplate by defining some shortcuts
local opt = vim.opt
local cmd = vim.cmd
local autocmd = vim.api.nvim_create_autocmd

--------------------
-- General
--------------------
opt.mouse = 'n'               -- enable mouse support in normal mode
opt.clipboard = 'unnamedplus' -- copy/paste to and from system clipboard

opt.wildmode = 'list:longest,full'
opt.wildignorecase = true
-- ignore C/C++ objects and other build files
opt.wildignore = '*.o,*.d,*.so,*.out'
-- ignore java classes
opt.wildignore:append '*.class'
-- ignore python cache files
opt.wildignore:append '*.pyc'
-- ignore tex-related build files
opt.wildignore:append '*.aux,*.bcf,*.lof,*.lol,*.lot,*.rubbercache,*.toc,*.pdf'

opt.fileformats = 'unix,dos'  -- use identical lineendings for all platforms
opt.secure = true             -- disable autocmd for security reasons

--------------------
-- Tabs
--------------------
opt.tabstop = 4               -- 1 tab == N spaces
opt.shiftwidth = 4            -- shift N spaces when pressing tab
opt.smartindent = true        -- take syntax into account for applying indentation

--------------------
-- Search
--------------------
opt.ignorecase = true         -- ignore capitalization on search
opt.smartcase = true          -- ignore capitalication unless word contains a capital

opt.iskeyword:append '-'      -- treat hyphenated words as a single word

--------------------
-- Neovim UI
--------------------
opt.number = true             -- line numbers
opt.ruler = true              -- cursor position in statusbar
opt.showtabline = 2           -- always show vim tabs
opt.showcmd = true            -- display currently typed command
opt.termguicolors = true      -- enable 24-bit RGB color

-- highlight line at which the cursor is positioned
opt.cursorline = true
cmd 'highlight CursorLine term=bold cterm=bold'
cmd 'highlight CursorLineNR term=bold cterm=bold ctermbg=darkgrey'

-- display warning column at 81 and 121
opt.colorcolumn = '81,121'
cmd 'highlight ColorColumn ctermbg=235 guibg=#2d2d2d'

opt.splitright = true         -- horizontal split to the right
opt.splitbelow = true         -- vertical split to the bottom

-- define characters to display when using 'set list'
opt.listchars = 'tab:→ ,trail:∙,eol:¬,extends:❯,precedes:❮,nbsp:␣'

--------------------
-- Performance
--------------------
opt.hidden = true             -- allow buffers with changes to be hidden
opt.updatetime = 300          -- delay (in ms) to wait before triggering event
opt.timeoutlen = 500          -- time (in ms) to wait for event to complete
opt.history = 10000           -- remember N lines of history

--------------------
-- Misc
--------------------

-- remove redundant whitespaces on save
autocmd('BufWritePre', {
	pattern = '*',
	command = ':%s/\\s\\+$//e'
})