vim.cmd([[
try
    if exists('+termguicolors')
        set termguicolors
    endif
    colorscheme catppuccin
catch
    colorscheme desert
endtry
]])

vim.g.mapleader = " "
vim.opt.incsearch = true
vim.opt.ignorecase = true
vim.opt.smartcase = true

vim.cmd(":filetype plugin indent on")
vim.cmd(":syntax enable")

vim.opt.backspace = "indent,eol,start"
vim.opt.smarttab = true

vim.opt.cursorline = true
vim.opt.ruler = true
vim.opt.wildmenu = true

vim.opt.gdefault = true
vim.opt.autoread = true
vim.opt.history = 1000
vim.opt.encoding = "utf-8"
vim.opt.number = true
vim.opt.relativenumber = true
vim.opt.scrolloff = 12
vim.opt.laststatus = 2
vim.opt.showcmd = true
vim.opt.showmatch = true
vim.opt.cmdheight = 3
vim.opt.list = true
vim.opt.listchars = "tab:>>,trail:_,eol:$,multispace:··,extends:>,precedes:<,nbsp:%"
vim.opt.encoding = "utf-8"
vim.opt.fenc = "utf-8"
vim.opt.spell = true
vim.opt.undofile = true
vim.opt.undodir = vim.fn.expand("~/.cache/nvim/undo")


if vim.fn.executable('rg') then
   vim.opt.grepprg = 'rg --vimgrep --smart-case --hidden'
end

{{- if eq .chezmoi.username "root" }}
vim.opt.expandtab = false
{{- else }}
vim.opt.expandtab = true
{{- end }}
vim.opt.tabstop = 4
vim.opt.shiftwidth = 4

-- abbreviations
vim.cmd(":ca cd. lcd %:p:h")
vim.cmd(':ca mkdir. call mkdir(expand("%:p:h"), "p")')
{{- if ne .chezmoi.username "root" }}
vim.cmd(':ca W! w !sudo -A tee %')
{{- end }}

{{- if (and (eq .hosttype "desktop" "laptop") (eq .chezmoi.os "linux")) }}
vim.cmd([[ autocmd InsertLeave * call system("fcitx5-remote -c") ]])
{{- end }}


vim.cmd("set clipboard+=unnamedplus")


-- folding
vim.opt.fillchars = { fold = " " }
vim.opt.foldmethod = "indent"
vim.opt.foldenable = false
vim.opt.foldlevel = 99
vim.g.markdown_folding = 1 -- enable markdown folding


-- auto undo break (insert mode)
local function map_undobreak(chars)
  local term = vim.api.nvim_replace_termcodes("<C-g>u", true, false, true)
  for _, ch in ipairs(chars) do
    vim.keymap.set("i", ch, function() return term .. ch end,
      { expr = true, silent = true, desc = "undobreak before '" .. ch .. "'" })
  end
end

map_undobreak({
  ".", ",", "!", "?", ";", ":", ")", "]", "}", ">",  -- 英文系
  "。", "、", "！", "？", "；", "：", "）", "］", "」", "』", "＞"  -- 和文系
})