local M = { 'monaqa/dial.nvim' }

---Create a right hand side for `dial` key maps.
---@param cmd string: name of a function from `dial.map`.
---@param suffix? string: keys to add after `dial`s mapping.
---@return function
local dial_cmd = function(cmd, suffix)
  suffix = suffix or ''
  return function()
    return require('dial.map')[cmd]() .. suffix
  end
end

---Make a new augent that cycles over the given elements.
---@param elements string[]: the elements to cycle.
---@return table: @see `dial.types.Augend`
local cyclic_augend = function(elements)
  return require('dial.augend').constant.new {
    elements = elements,
    word = true,
    cyclic = true
  }
end

M.keys = {
  { '<c-a>', dial_cmd('inc_normal'), expr = true, desc = ' Increment' },
  { '<c-x>', dial_cmd('dec_normal'), expr = true, desc = ' Decrement' },

  { '<c-a>', dial_cmd('inc_visual', 'gv'), expr = true, desc = ' Increment', mode = 'v' },
  { '<c-x>', dial_cmd('dec_visual', 'gv'), expr = true, desc = ' Decrement', mode = 'v' },

  { 'g<c-a>', dial_cmd('inc_gvisual', 'gv'), expr = true, desc = ' Increment', mode = 'v' },
  { 'g<c-x>', dial_cmd('dec_gvisual', 'gv'), expr = true, desc = ' Decrement', mode = 'v' },
}

M.config = function()
  local augend = require('dial.augend')
  require('dial.config').augends:register_group {
    default = {
      augend.integer.alias.decimal_int,
      augend.integer.alias.hex,
      augend.integer.alias.binary,
      augend.constant.alias.bool,
      augend.semver.alias.semver,
      augend.date.alias['%Y-%m-%d'],
      augend.date.alias['%d/%m/%Y'],
      augend.date.alias['%d.%m.%Y'],
      cyclic_augend { 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday' },
      cyclic_augend { 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun' },
      cyclic_augend { 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa', 'Su' },
    }
  }
end

return M