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-- init.lua --
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-- Default config
vim.o.fileencoding = 'utf8'
vim.o.encoding = 'utf-8'
vim.o.ff = 'unix'
vim.o.backspace = 'indent,eol,start'

-- Options
local set_true = { 'title', 'number', 'relativenumber', 'ruler', 'modeline',
'autoread',
--- Search options
'incsearch', 'ignorecase', 'smartcase',
'showcmd', 'showmatch', 'lazyredraw', 'linebreak', 'wrap',
'wildmenu', 'wildignorecase',  'showfulltag', }
local set_false = {'hlsearch', 'compatible', }
for _,o in ipairs(set_true) do
  vim.o[o] = true
end
for _,o in ipairs(set_false) do
  vim.o[o] = false
end
--- Indent & Tab options
vim.cmd 'filetype indent on'
local indent_options = { 'cindent', 'smartindent', 'autoindent', 'expandtab' }
local tab_options = { 'tabstop', 'softtabstop', 'shiftwidth' }
for _,o in ipairs(indent_options) do vim.o[o] = true end
for _,o in ipairs(tab_options) do vim.o[o] = 2 end
--- Position
vim.o.tw = 80
vim.o.winwidth = 88
vim.o.scrolloff = 6
vim.cmd "set formatoptions-=t"

-- undodir: undo across sessions (but not upon reboot)
vim.o.undodir = '/tmp/undo'
vim.o.undofile = true
vim.o.backup = false

-- Theme
vim.o.background = "light"
vim.cmd "colorscheme lunaperche"

-- Remappings
local map_list = {
  --- w| / w- to create vertical and horizontal splits
  ['w|'] = ':vsplit', ['w-'] = ':split',
  --- gi / ge to move between buffers
  ['gi'] = ':bprevious', ['ge'] = ':bnext',
  --- W to save, ^t to create a tab
  ['W'] = ':w', ['<C-t>'] = ':tabnew',
}
for key, binding in pairs(map_list) do
  vim.api.nvim_set_keymap('n', key, binding .. '<CR>', { noremap = true, silent = true })
end