require('spell')
vim.opt_local.foldenable = false
vim.opt_local.foldlevel = 1

vim.fn.matchadd('Conceal', '- \\[ \\]\\&- \\zs\\[ ', 0, -1, { conceal = '☐ ' })
-- vim.fn.matchadd('Conceal', '\\[x\\]', 0, -1, { conceal = '☑ ' })
-- vim.fn.matchadd('Conceal', '\\[-\\]', 0, -1, { conceal = '☒ ' })
vim.fn.matchadd('Conceal', '- \\[x\\]\\&- \\zs\\[x', 0, -1, { conceal = '🞕 ' })
vim.fn.matchadd('Conceal', '- \\[[ x]\\zs\\]', 0, -1, { conceal = ' ' })

vim.keymap.set('n', '<Plug>Markdown_OpenUrlUnderCursor',
  function() require('misc').open_under_cursor('url-launcher') end)

vim.keymap.set('n', '<localleader>l', require('misc').link_preview, {desc='link preview'})

local function toggle_checkbox()
  local ln, n = vim.api.nvim_get_current_line(), 0
  ln, n = string.gsub(ln, '%[ %]', '[x]', 1)
  if n > 0 then goto set_line end
  ln, n = string.gsub(ln, '%[x%]', '[ ]', 1)
  if n > 0 then goto set_line end
  ln, n = string.gsub(ln, 'TODO', 'DONE', 1)
  if n > 0 then goto set_line end
  ln, n = string.gsub(ln, 'DONE', 'TODO', 1)
  if n > 0 then goto set_line end

::set_line::
  vim.api.nvim_set_current_line(ln)
end
vim.keymap.set('n', '<space><space>', toggle_checkbox, {desc='toggle checkbox', buffer=true})
vim.keymap.set('i', '<c-space>', toggle_checkbox, {desc='toggle checkbox', buffer=true})

-- vim.keymap.set('n', '<leader>zn', function() require('zk').new() end, {buffer=true})
-- vim.keymap.set('n', '<leader>zi', function() require('zk').index() end, {buffer=true})
-- vim.cmd [[ command! -nargs=* ZettelkastenNew lua require('zk').new(nil, <f-args>) ]]

vim.keymap.set('n', 'gt', function()
  require('telescope._extensions.todo-comments').exports.todo {cwd=vim.env.ZK_NOTEBOOK_DIR}
end, {desc='show zk todos', buffer=true})

vim.keymap.set('n', 'o', function()
  local cursor = vim.api.nvim_win_get_cursor(0)
  -- need to decrement the row number here, to account for 0 indexing
  local node = vim.treesitter.get_node_at_pos(0, cursor[1]-1, cursor[2], {})
  while node do
    if node:type() == 'list_item' then
      local ln = vim.treesitter.get_node_text(node:child(0), 0, {})
      local ln_start = string.match(ln, '^(%d+)%.'); if ln_start ~= nil then
        ln = ln:gsub(ln_start, tonumber(ln_start)+1)
      end
      vim.api.nvim_buf_set_lines(0, cursor[1], cursor[1], false, {ln})
      vim.api.nvim_feedkeys('jA', 'n', false)
      return
    end
    node = node:parent()
  end

  vim.api.nvim_feedkeys('o', 'n', false)
end, {desc='smart-o', buffer=true})