# This file is in the public domain.

_arch_compgen() {
  local i r
  COMPREPLY=($(compgen -W '$*' -- "$cur"))
  for ((i=1; i < ${#COMP_WORDS[@]}-1; i++)); do
    for r in ${!COMPREPLY[@]}; do
      if [[ ${COMP_WORDS[i]} = ${COMPREPLY[r]} ]]; then
        unset 'COMPREPLY[r]'; break
      fi
    done
  done
}

_arch_ptr2comp() {
  local list= x y
  for x; do
    for y in '0 --' '1 -'; do
      eval 'set -- ${'$x'[${y% *}]}'
      list+=\ ${@/#/${y#* }}
    done
  done
  _arch_compgen $list
}

_arch_incomp() {
  local r="\s-(-${1#* }\s|\w*${1% *})"; [[ $COMP_LINE =~ $r ]]
}

_pacman_pkg() {
  _arch_compgen "$(
    if [[ $2 ]]; then
      \pacman -$1 2>/dev/null | \cut -d' ' -f1 | \sort -u
    else
      \pacman -$1 2>/dev/null
    fi
  )"
}

_yay_pkg() {
  [ -z "$cur" ] && return
  _arch_compgen "$(yay -Pc)"
}

_pacman_repo_list() {
  _arch_compgen "$(pacman-conf --repo-list)"
}

_yay() {
  local common core cur database files prev query remove sync upgrade o
  local yays show getpkgbuild
  COMPREPLY=()
  _get_comp_words_by_ref cur prev
  database=('asdeps asexplicit')
  files=('list machinereadable owns search refresh regex' 'l o s x y')
  query=('changelog check deps explicit file foreign groups info list native owns
          search unrequired upgrades' 'c e g i k l m n o p s t u')
  remove=('cascade dbonly nodeps assume-installed nosave print recursive unneeded' 'c n p s u')
  sync=('asdeps asexplicit clean dbonly downloadonly force groups ignore ignoregroup
         info list needed nodeps assume-installed print refresh recursive search sysupgrade'
        'c g i l p s u w y')
  upgrade=('asdeps asexplicit force needed nodeps assume-installed print recursive' 'p')
  common=('arch cachedir color config confirm dbpath debug gpgdir help hookdir logfile
           noconfirm noprogressbar noscriptlet quiet root verbose')
           #yay stuff
  common+=('makepkg pacman tar git gpg gpgflags config requestsplitn sudoloop nosudoloop
           redownload noredownload redownloadall rebuild rebuildall rebuildtree norebuild
           sortby answerclean answerdiff answeredit answerupgrade noanswerclean noanswerdiff
           noansweredit noanswerupgrade cleanmenu diffmenu editmenu upgrademenu cleanafter nocleanafter
           nocleanmenu nodiffmenu noupgrademenu provides noprovides pgpfetch nopgpfetch
           useask nouseask combinedupgrade nocombinedupgrade aur repo makepkgconf
           nomakepkgconf askremovemake removemake noremovemake completioninterval aururl'
           'b d h q r v')
  core=('database files help query remove sync upgrade version' 'D F Q R S U V h')

  ##yay stuff
  yays=('clean gendb' 'c')
  show=('complete defaultconfig currentconfig stats  news' 'c d g s w')
  getpkgbuild=('force' 'f')

  for o in 'D database' 'F files' 'Q query' 'R remove' 'S sync' 'U upgrade' 'Y yays' 'P show' 'G getpkgbuild'; do
    _arch_incomp "$o" && break
  done

  if [[ $? != 0 ]]; then
    _arch_ptr2comp core
  elif [[ ! $prev =~ ^-\w*[Vbhr] &&
    ! $prev = --@(cachedir|color|config|dbpath|help|hookdir|gpgdir|logfile|root|version) ]]
  then
    [[ $cur = -* ]] && _arch_ptr2comp ${o#* } common ||
      case ${o% *} in
      D|R)
          _pacman_pkg Qq;;
      F)
          _arch_incomp 'l list'   && _pacman_pkg Slq;
          ;;
      Q)
        { _arch_incomp 'g groups' && _pacman_pkg Qg sort; }    ||
        { _arch_incomp 'p file'   && _pacman_file; }           ||
          _arch_incomp 'o owns'   || _arch_incomp 'u upgrades' ||
          _pacman_pkg Qq;;
      S)
        { _arch_incomp 'g groups' && _pacman_pkg Sg; }      ||
        { _arch_incomp 'l list'   && _pacman_repo_list; } ||
          _yay_pkg;;
      G)
          _yay_pkg;;
      U)
          _pacman_file;;
      esac
  fi
  true
}

_pacman_file() {
  compopt -o filenames; _filedir 'pkg.tar*'
}

complete -F _yay -o default yay

# ex:et ts=2 sw=2 ft=sh