-- Candidate commands to show in in the command palette in different contexts.
-- Ideally we'd have rules for:
--   contexts to show a command at
--   order in which to show commands for each context
-- But I don't want to design that, so I'm just going to embrace a
-- combinatorial explosion of duplication for a while.

  'capture',  -- hard-coded at index 1; we want C-enter enter to create a new note
  'edit note at cursor (ctrl+e)',  -- hard-coded at index 2; see candidates() below
  'maximize note',  -- hard-coded at index 3; see candidates() below
  'close column surrounding cursor',
  'down one pane (ctrl+down)',
  'up one pane (ctrl+up)',
  'top pane of column (ctrl+home)',
  'bottom pane of column (ctrl+end)',
  'wider columns (X)',
  'narrower columns (x)',
  'recently modified',
  'reload note at cursor from disk',
  'search (all notes)',
  '/ (find on screen)',

  normal={
    'capture',
    'edit note at cursor (ctrl+e)',
    'maximize note',
    'close column surrounding cursor',
    'down one pane (ctrl+down)',
    'up one pane (ctrl+up)',
    'top pane of column (ctrl+home)',
    'bottom pane of column (ctrl+end)',
    'wider columns (X)',
    'narrower columns (x)',
    'recently modified',
    'reload note at cursor from disk',
    'search (all notes)',
    '/ (find on screen)',
  },
  editable={
    'exit editing (ctrl+e)',
    'capture',
    'maximize note',
    'close column surrounding cursor',
    'down one pane (ctrl+down)',
    'up one pane (ctrl+up)',
    'top pane of column (ctrl+home)',
    'bottom pane of column (ctrl+end)',
    'wider columns (X)',
    'narrower columns (x)',
    'recently modified',
    'reload note at cursor from disk',
    'search (all notes)',
    '/ (find on screen)',
  },
  maximized={
    'back to surface',
    'edit note at cursor (ctrl+e)',
    'wider columns (X)',
    'narrower columns (x)',
    'reload note at cursor from disk',
    '/ (find on screen)',
  },
  maximized_editable={
    'exit editing (ctrl+e)',
    'back to surface',
    'wider columns (X)',
    'narrower columns (x)',
    'reload note at cursor from disk',
    'search (all notes)',
    '/ (find on screen)',
  },

  local pane = Surface[Cursor_pane.col][Cursor_pane.row]
  local candidates

    Commands[3] = 'maximize note'
  else
    Commands[3] = 'back to surface'

    if not pane.editable then
      candidates = Commands.normal
    else
      candidates = Commands.editable
    end
  elseif Display_settings.mode == 'maximize' then
    if not pane.editable then
      candidates = Commands.maximized
    else
      candidates = Commands.maximized_editable
    end

  local pane = Surface[Cursor_pane.col][Cursor_pane.row]
  if pane.editable then
    Commands[2] = 'exit editing (ctrl+e)'
  else
    Commands[2] = 'edit note at cursor (ctrl+e)'
  end

    return Commands

    return candidates

    local results = filter_candidates(Commands, Display_settings.palette)

    local results = filter_candidates(candidates, Display_settings.palette)