# written by David Pravec
#   - feel free to /msg alekibango on IRC if you want to talk about this file

# TODO: check if --config|-c was used and use configured config file for queries
# TODO: solve somehow completion for  salt -G pythonversion:[tab]
#       (not sure what to do with lists)
# TODO: --range[tab] --   how?
# TODO: --compound[tab] -- how?
# TODO: use history to extract some words, esp. if ${cur} is empty
# TODO: TEST EVERYTHING a lot
# TODO: cache results of some functions?  where? how long?
# TODO: is it ok to use '--timeout 2' ?

_salt_get_grains() {
  if [ "$1" = 'local' ]; then
    salt-call --out=txt -- grains.ls | sed 's/^.*\[//' | tr -d ",']" | sed 's:\([a-z0-9]\) :\1\: :g'
  else
    salt '*' --timeout 2 --out=txt -- grains.ls | sed 's/^.*\[//' | tr -d ",']" | sed 's:\([a-z0-9]\) :\1\: :g'
  fi
}

_salt_get_grain_values() {
  if [ "$1" = 'local' ]; then
    salt-call --out=txt -- grains.item $1 | sed 's/^\S*:\s//' | grep -v '^\s*$'
  else
    salt '*' --timeout 2 --out=txt -- grains.item $1 | sed 's/^\S*:\s//' | grep -v '^\s*$'
  fi
}

_salt() {
  local cur prev opts _salt_grains _salt_coms pprev ppprev
  COMPREPLY=()
  cur="${COMP_WORDS[COMP_CWORD]}"
  prev="${COMP_WORDS[COMP_CWORD - 1]}"
  if [ ${COMP_CWORD} -gt 2 ]; then
    pprev="${COMP_WORDS[COMP_CWORD - 2]}"
  fi
  if [ ${COMP_CWORD} -gt 3 ]; then
    ppprev="${COMP_WORDS[COMP_CWORD - 3]}"
  fi

  opts="-h --help -d --doc --documentation --version --versions-report -c \
    --config-dir= -v --verbose -t --timeout= -s --static -b --batch= \
    --batch-size= -E --pcre -L --list -G --grain --grain-pcre -N \
    --nodegroup -R --range -C --compound -I --pillar \
    --return= -a --auth= --eauth= --extended-auth= -T --make-token -S \
    --ipcidr --out=pprint --out=yaml --out=overstatestage --out=json \
    --out=raw --out=highstate --out=key --out=txt --no-color --out-indent= "

  if [[ "${cur}" == -* ]]; then
    COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
    return 0
  fi

  # 2 special cases for filling up grain values
  case "${pprev}" in
    -G | --grain | --grain-pcre)
      if [ "${cur}" = ":" ]; then
        COMPREPLY=($(compgen -W "$(_salt_get_grain_values ${prev})"))
        return 0
      fi
      ;;
  esac
  case "${ppprev}" in
    -G | --grain | --grain-pcre)
      if [ "${prev}" = ":" ]; then
        COMPREPLY=($(compgen -W "$(_salt_get_grain_values ${pprev})" -- ${cur}))
        return 0
      fi
      ;;
  esac

  if [ "${cur}" = "=" ] && [[ "${prev}" == --* ]]; then
    cur=""
  fi
  if [ "${prev}" = "=" ] && [[ "${pprev}" == --* ]]; then
    prev="${pprev}"
  fi

  case "${prev}" in

    -c | --config)
      COMPREPLY=($(compgen -f -- ${cur}))
      return 0
      ;;
    salt)
      COMPREPLY=($(compgen -W "\'*\' ${opts} $(salt-key --no-color -l acc)" -- ${cur}))
      return 0
      ;;
    -E | --pcre)
      COMPREPLY=($(compgen -W "$(salt-key --no-color -l acc)" -- ${cur}))
      return 0
      ;;
    -G | --grain | --grain-pcre)
      COMPREPLY=($(compgen -W "$(_salt_get_grains)" -- ${cur}))
      return 0
      ;;
    -C | --compound)
      COMPREPLY=() # TODO: finish this one? how?
      return 0
      ;;
    -t | --timeout)
      COMPREPLY=($(compgen -W "1 2 3 4 5 6 7 8 9 10 15 20 30 40 60 90 120 180" -- ${cur}))
      return 0
      ;;
    -b | --batch | --batch-size)
      COMPREPLY=($(compgen -W "1 2 3 4 5 6 7 8 9 10 15 20 30 40 50 60 70 80 90 100 120 150 200"))
      return 0
      ;;
    -N | --nodegroup)
      MASTER_CONFIG='/etc/salt/master'
      COMPREPLY=($(compgen -W "$(awk -F ':' 'BEGIN {print_line = 0};  /^nodegroups/ {print_line = 1;getline } print_line && /^  */ {print $1} /^[^ ]/ {print_line = 0}' <${MASTER_CONFIG})" -- ${cur}))
      return 0
      ;;
  esac

  _salt_coms="$(salt '*' --timeout 2 --out=txt -- sys.list_functions | sed 's/^.*\[//' | tr -d ",']")"
  all="${opts} ${_salt_coms}"
  COMPREPLY=($(compgen -W "${all}" -- ${cur}))

  return 0
}

complete -F _salt salt

_saltkey() {
  local cur prev opts prev pprev
  COMPREPLY=()
  cur="${COMP_WORDS[COMP_CWORD]}"
  prev="${COMP_WORDS[COMP_CWORD - 1]}"
  opts="-c --config-dir= -h --help --version --versions-report -q --quiet \
      -y --yes --gen-keys= --gen-keys-dir= --keysize= --key-logfile= \
      -l --list= -L --list-all -a --accept= -A --accept-all \
      -r --reject= -R --reject-all -p --print= -P --print-all \
      -d --delete= -D --delete-all -f --finger= -F --finger-all \
      --out=pprint --out=yaml --out=overstatestage --out=json --out=raw \
      --out=highstate --out=key --out=txt --no-color --out-indent= "
  if [ ${COMP_CWORD} -gt 2 ]; then
    pprev="${COMP_WORDS[COMP_CWORD - 2]}"
  fi
  if [ ${COMP_CWORD} -gt 3 ]; then
    ppprev="${COMP_WORDS[COMP_CWORD - 3]}"
  fi
  if [[ "${cur}" == -* ]]; then
    COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
    return 0
  fi

  if [ "${cur}" = "=" ] && [[ "${prev}" == --* ]]; then
    cur=""
  fi
  if [ "${prev}" = "=" ] && [[ "${pprev}" == --* ]]; then
    prev="${pprev}"
  fi

  case "${prev}" in
    -a | --accept)
      COMPREPLY=($(compgen -W "$(
        salt-key -l un --no-color
        salt-key -l rej --no-color
      )" -- ${cur}))
      return 0
      ;;
    -r | --reject)
      COMPREPLY=($(compgen -W "$(salt-key -l acc --no-color)" -- ${cur}))
      return 0
      ;;
    -d | --delete)
      COMPREPLY=($(compgen -W "$(
        salt-key -l acc --no-color
        salt-key -l un --no-color
        salt-key -l rej --no-color
      )" -- ${cur}))
      return 0
      ;;
    -c | --config)
      COMPREPLY=($(compgen -f -- ${cur}))
      return 0
      ;;
    --keysize)
      COMPREPLY=($(compgen -W "2048 3072 4096 5120 6144" -- ${cur}))
      return 0
      ;;
    --gen-keys)
      return 0
      ;;
    --gen-keys-dir)
      COMPREPLY=($(compgen -d -- ${cur}))
      return 0
      ;;
    -p | --print)
      COMPREPLY=($(compgen -W "$(
        salt-key -l acc --no-color
        salt-key -l un --no-color
        salt-key -l rej --no-color
      )" -- ${cur}))
      return 0
      ;;
    -l | --list)
      COMPREPLY=($(compgen -W "pre un acc accepted unaccepted rej rejected all" -- ${cur}))
      return 0
      ;;
    --accept-all)
      return 0
      ;;
  esac
  COMPREPLY=($(compgen -W "${opts} " -- ${cur}))
  return 0
}

complete -F _saltkey salt-key

_saltcall() {
  local cur prev opts _salt_coms pprev ppprev
  COMPREPLY=()
  cur="${COMP_WORDS[COMP_CWORD]}"
  prev="${COMP_WORDS[COMP_CWORD - 1]}"
  opts="-h --help -d --doc --documentation --version --versions-report \
          -m --module-dirs= -g --grains --return= --local -c --config-dir= -l --log-level= \
          --out=pprint --out=yaml --out=overstatestage --out=json --out=raw \
          --out=highstate --out=key --out=txt --no-color --out-indent= "
  if [ ${COMP_CWORD} -gt 2 ]; then
    pprev="${COMP_WORDS[COMP_CWORD - 2]}"
  fi
  if [ ${COMP_CWORD} -gt 3 ]; then
    ppprev="${COMP_WORDS[COMP_CWORD - 3]}"
  fi
  if [[ "${cur}" == -* ]]; then
    COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
    return 0
  fi

  if [ "${cur}" = "=" ] && [[ ${prev} == --* ]]; then
    cur=""
  fi
  if [ "${prev}" = "=" ] && [[ ${pprev} == --* ]]; then
    prev="${pprev}"
  fi

  case ${prev} in
    -m | --module-dirs)
      COMPREPLY=($(compgen -d ${cur}))
      return 0
      ;;
    -l | --log-level)
      COMPREPLY=($(compgen -W "info none garbage trace warning error debug" -- ${cur}))
      return 0
      ;;
    -g | grains)
      return 0
      ;;
    salt-call)
      COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
      return 0
      ;;
  esac

  _salt_coms="$(salt-call --out=txt -- sys.list_functions | sed 's/^.*\[//' | tr -d ",']")"
  COMPREPLY=($(compgen -W "${opts} ${_salt_coms}" -- ${cur}))
  return 0
}

complete -F _saltcall salt-call

_saltcp() {
  local cur prev opts target prefpart postpart helper filt pprev ppprev
  COMPREPLY=()
  cur="${COMP_WORDS[COMP_CWORD]}"
  prev="${COMP_WORDS[COMP_CWORD - 1]}"
  opts="-t --timeout= -s --static -b --batch= --batch-size= \
                  -h --help --version --versions-report -c --config-dir= \
                  -E --pcre -L --list -G --grain --grain-pcre -N --nodegroup \
                  -R --range -C --compound -I --pillar \
                  --out=pprint --out=yaml --out=overstatestage --out=json --out=raw \
                  --out=highstate --out=key --out=txt --no-color --out-indent= "
  if [[ "${cur}" == -* ]]; then
    COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
    return 0
  fi

  if [ "${cur}" = "=" ] && [[ "${prev}" == --* ]]; then
    cur=""
  fi
  if [ "${prev}" = "=" ] && [[ "${pprev}" == --* ]]; then
    prev=${pprev}
  fi

  case ${prev} in
    salt-cp)
      COMPREPLY=($(compgen -W "${opts} $(salt-key -l acc --no-color)" -- ${cur}))
      return 0
      ;;
    -t | --timeout)
      # those numbers are just a hint
      COMPREPLY=($(compgen -W "2 3 4 8 10 15 20 25 30 40 60 90 120 180 240 300" -- ${cur}))
      return 0
      ;;
    -E | --pcre)
      COMPREPLY=($(compgen -W "$(salt-key -l acc --no-color)" -- ${cur}))
      return 0
      ;;
    -L | --list)
      # IMPROVEMENTS ARE WELCOME
      prefpart="${cur%,*},"
      postpart=${cur##*,}
      filt="^\($(echo ${cur} | sed 's:,:\\|:g')\)$"
      helper=($(salt-key -l acc --no-color | grep -v "${filt}" | sed "s/^/${prefpart}/"))
      COMPREPLY=($(compgen -W "${helper[*]}" -- ${cur}))

      return 0
      ;;
    -G | --grain | --grain-pcre)
      COMPREPLY=($(compgen -W "$(_salt_get_grains)" -- ${cur}))
      return 0
      ;;
    # FIXME
    -R | --range)
      # FIXME ??
      return 0
      ;;
    -C | --compound)
      # FIXME ??
      return 0
      ;;
    -c | --config)
      COMPREPLY=($(compgen -f -- ${cur}))
      return 0
      ;;
  esac

  # default is using opts:
  COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
}

complete -F _saltcp salt-cp