#compdef salt salt-call salt-cp salt-run salt-key
# The use-cache style is checked in a few places to allow caching minions, modules,
# or the directory salt is installed in.
# you can cache those three with:
# zstyle ':completion:*:salt(|-cp|-call|-run|-key):*' use-cache true
# and/or selectively:
# zstyle ':completion::complete:salt-key:set-option-a-1:'             use-cache false
# zstyle ':completion::complete:salt(|-cp|-call):minions:'            use-cache true
# zstyle ':completion::complete:salt(|-call):modules:'                use-cache true
# zstyle ':completion::complete:salt(|-cp|-call|-run|-key):salt_dir:' use-cache true
#
# cache validation can be controled with the style cache-ttl.
# it expects two arguments: number (days|hours|weeks|months)
# to invalidate the minion cache after four days:
# zstyle ':completion::complete:salt(|-cp|-call):minions:'            cache-ttl 4 days


local state line curcontext="$curcontext" salt_dir

_modules(){
    local _funcs expl curcontext=${curcontext%:*}:modules

    if ! zstyle -m ":completion:$curcontext:" cache-policy '*'; then
        zstyle ":completion:$curcontext:" cache-policy _salt_caching_policy
    fi

    if _cache_invalid salt/modules || ! _retrieve_cache salt/modules; then
        _funcs=( ${${(Q)${${(s. .)"$(_call_program salt-call-cmd salt-call --local --log-level error --out txt sys.list_functions)"}%%[],]##}#\[}:#local:} )
        _store_cache salt/modules _funcs
    fi

    _wanted modules expl modules _multi_parts "$@" . _funcs
}

_runners(){
    local _runs expl curcontext=${curcontext%:*}:runners

    if ! zstyle -m ":completion:$curcontext:" cache-policy '*'; then
        zstyle ":completion:$curcontext:" cache-policy _salt_caching_policy
    fi

    if _cache_invalid salt/runners || ! _retrieve_cache salt/runners; then
        _runs=( ${${(Q)${${(s. .)"$(_call_program salt-call-cmd salt-call --local --log-level error --out txt sys.list_runner_functions)"}%%[],]##}#\[}:#local:} )
        _store_cache salt/runners _runs
    fi

    _wanted modules expl runners _multi_parts "$@" . _runs
}

_minions(){
    local type requested_type include_all key expl; typeset -A _peons

    # when completing the minion argument for salt and salt-cp, set the argument section
    # of the context to `minion' not `argument-1'
    if [[ $service = salt(|-cp) ]]; then
       curcontext=${curcontext%:*}:minions
    fi

    # only pass the argument accepted, unaccepted, rejected, denied or all to -t/-T
    # the argument is used as part of an tag, accepted-minions, rejected-minions, etc.
    # while un, acc, den, etc will work, you will possibly ignore user customized tags.
    zparseopts -D -E 't+:=requested_type' 'T+:=include_all'

    if ! zstyle -m ":completion:$curcontext:" cache-policy '*'; then
        zstyle ":completion:$curcontext:" cache-policy _salt_caching_policy
    fi

    if _cache_invalid salt/minions || ! _retrieve_cache salt/minions; then
        # it would be awesome if salt-key could prefix or suffix a word to denote
        # the key's state. It would remove the need for this loop, calling salt-key N times.
        for type in accepted unaccepted rejected denied; do
            salt-key -l $type 2>/dev/null | while read -r key; do
              [[ $key == *' Keys:' ]] && continue
              _peons+=( "$key" $type )
            done
        done
        _store_cache salt/minions _peons
    fi

    # if salt-key's --include-all option isn't on the line, ignore the -T options
    (( words[(I)--include-all] )) || unset include_all

    if (( requested_type[(I)all] )); then
        requested_type=( -t accepted -t unaccepted -t rejected -t denied )
        unset include_all
    fi

    for type in ${${requested_type:#-t}:-accepted} ${include_all:#-T}; do
        _wanted $type-minions expl minion compadd "$@" -M 'r:|.=* r:|=*' ${(k)_peons[(R)$~type]}
    done
}

(( $+functions[_salt_caching_policy] )) ||
_salt_caching_policy() {
    local oldp ttl d t
    zstyle -a ":completion:$curcontext:" cache-ttl ttl

    if (( $#ttl >= 2 )); then
      [[ $ttl[1] == <-> ]] && integer t=$ttl[1]

      case $ttl[2] in
        seconds#)d=s;;
        months#) d=M;;
        weeks#)  d=w;;
        hours#)  d=h;;
        *)       d=d;;
      esac
    fi

    oldp=( "$1"(Nm${d:-d}+${t:-1}) )
    (( $#oldp ))
}

local -a _{target,master,logging,minion}_options _{common,out}_opts _target_opt_pat
_target_opt_pat=(
    '(-[ELGNRCIS]|--(pcre|list|grain(|-pcre)|nodegroup|range|compound|pillar|ipcidr))'
    '(-E --pcre -L --list -G --grain --grain-pcre -N --nodegroup -R --range -C --compound -I --pillar -S --ipcidr)'
)

_target_options=(
    "$_target_opt_pat[2]"{-E,--pcre}'[use pcre regular expressions]:pcre:'
    "$_target_opt_pat[2]"{-L,--list}'[take a comma or whitespace delimited list of servers.]:list:'
    "$_target_opt_pat[2]"{-G,--grain}'[use a grain value to identify targets]:Grains:'
    "$_target_opt_pat[2]--grain-pcre[use a grain value to identify targets.]:pcre:"
    "$_target_opt_pat[2]"{-N,--nodegroup}'[use one of the predefined nodegroups to identify a list of targets.]:Nodegroup:'
    "$_target_opt_pat[2]"{-R,--range}'[use a range expression to identify targets.]:Range:'
    "$_target_opt_pat[2]"{-C,--compound}'[Use multiple targeting options.]:Compound:'
    "$_target_opt_pat[2]"{-I,--pillar}'[use a pillar value to identify targets.]:Pillar:'
    "$_target_opt_pat[2]"{-S,--ipcidr}'[Match based on Subnet (CIDR notation) or IPv4 address.]:Cidr:'
)

_common_opts=(
    "--version[show program's version number and exit]"
    "--versions-report[show program's dependencies version number and exit]"
    '(-h --help)'{-h,--help}'[show this help message and exit]'
    '(-c --config-dir)'{-c,--config-dir}'[Pass in an alternative configuration directory.(default: /etc/salt/)]:Config Directory:_files -/'
    '(-t --timeout)'{-t,--timeout}'[Change the timeout for the running command; default=5]:Timeout (seconds):'
)

_master_options=(
    '(-s --static)'{-s,--static}'[Return the data from minions as a group after they all return.]'
    "--async[Run the salt command but don't wait for a reply]"
    '(--state-output --state_output)'{--state-output,--state_output}'[Override the configured state_output value for minion output. Default: full]:Outputs:(full terse mixed changes)'
    '--subset[Execute the routine on a random subset of the targeted minions]:Subset:'
    '(-v --verbose)'{-v,--verbose}'[Turn on command verbosity, display jid and active job queries]'
    '--hide-timeout[Hide minions that timeout]'
    '(-b --batch --batch-size)'{-b,--batch,--batch-size}'[Execute the salt job in batch mode, pass number or percentage to batch.]:Batch Size:'
    '(-a --auth --eauth --external-auth)'{-a,--auth,--eauth,--external-auth}'[Specify an external authentication system to use.]:eauth:'
    '(-T --make-token)'{-T,--make-token}'[Generate and save an authentication token for re-use.]'
    '--return[Set an alternative return method.]:Returners:_path_files -W "$salt_dir/returners" -g "[^_]*.py(\:r)"'
    '(-d --doc --documentation)'{-d,--doc,--documentation}'[Return the documentation for the specified module]'
    '--args-separator[Set the special argument used as a delimiter between command arguments of compound commands.]:Arg separator:'
)

_minion_options=(
    '--return[Set an alternative return method.]:Returners:_path_files -W "$salt_dir"/returners" -g "[^_]*.py(\:r)"'
    '(-d --doc --documentation)'{-d,--doc,--documentation}'[Return the documentation for the specified module]'
    '(-g --grains)'{-g,--grains}'[Return the information generated by the salt grains]'
    {*-m,*--module-dirs}'[Specify an additional directory to pull modules from.]:Module Dirs:_files -/'
    '--master[Specify the master to use.]:Master:'
    '--local[Run salt-call locally, as if there was no master running.]'
    '--file-root[Set this directory as the base file root.]:File Root:_files -/'
    '--pillar-root[Set this directory as the base pillar root.]:Pillar Root:_files -/'
    '--retcode-passthrough[Exit with the salt call retcode and not the salt binary retcode]'
    '--id[Specify the minion id to use.]:Minion ID:'
    '--skip-grains[Do not load grains.]'
    '--refresh-grains-cache[Force a refresh of the grains cache]'
)

_runner_options=(
    '--hard-crash[raise any original exception rather than exiting gracefully]'
    '(-d --doc --documentation)'{-d,--doc,--documentation}'[Return the documentation for the specified module]'
)

_key_options=(
    '(-u --user)'{-u+,--user=}'[specify user to run salt-key]:user:_users'
    '--hard-crash[raise any original exception rather than exiting gracefully]'
    '(-q --quiet)'{-q,--quiet}'[quiet mode]'
    '(-y --yes)'{-y,--yes}'[assume yes]'
    '--rotate-aes-key[prevents the master from refreshing the key session when keys are deleted or rejected]:boolean:(true false)'
    '--gen-keys=[set a name to generate a keypair for use with salt]:key name'
    '--gen-keys-dir=[set the directory to save the generated keypair]: : _directories'
    '--keysize=[set the size for keypair]:key size'
    '--gen-signature[create a signature file of the masters public-key]'
    '--priv=[the private-key file to create a signature with]:private key:_files'
    '--signature-path=[the path where the signature file should be written]: : _directories'
    '--pub=[the public-key file to create a signature for]:public key:_files'
    '--auto-create[auto-create a signing key-pair if it does not yet exist]'
    '--include-all[include non-pending keys when accepting/rejecting]'
    - '(set)'
    {-l+,--list=}'[list public keys]:key type:((
        preaccepted\:"unaccepted/unsigned keys" unaccepted\:"unaccepted/unsigned keys" un\:"unaccepted/unsigned keys"
        accepted\:"accepted/signed keys" acc\:"accepted/signed keys"
        rejected\:"rejected keys" rej\:"rejected keys"
        den\:"denied keys" denied\:"denied keys" all
      ))'
    {-a+,--accept=}'[accept key]:key:_minions -t unaccepted -T rejected'
    {-A,--accept-all}'[accept all keys]'
    {-r+,--reject=}'[reject key]:key:_minions -t rejected -T accepted'
    {-p+,--print=}'[print the specified public key]:key:_minions -t all'
    {-P,--print-all}'[print all public keys]'
    {-d+,--delete=}'[delete the specified public key]:key:_minions -t all'
    {-D,--delete-all}'[delete all public keys]'
    {-f+,--finger=}'[print the specified key'\''s fingerprint]:key:_minions -t all'
    {-F,--finger-all}'[print the fingerprint of all keys]'
)

_logging_options=(
    '(-l --log-level)'{-l,--log-level}'[Console logging log level.(default: warning)]:Log Level:(all garbage trace debug info warning error critical quiet)'
    '--log-file[Log file path. Default: /var/log/salt/master.]:Log File:_files'
    '--log-file-level=[Logfile logging log level.Default: warning]:Log Level:(all garbage trace debug info warning error critical quiet)'
)

_out_opts=(
    '(--out --output)'{--out,--output}'[Print the output using the specified outputter.]:Outputters:_path_files -W "$salt_dir/output" -g "[^_]*.py(\:r)"'
    '(--out-indent --output-indent)'{--out-indent,--output-indent}'[Print the output indented by the provided value in spaces.]:Number:'
    '(--out-file --output-file)'{--out-file,--output-file}'[Write the output to the specified file]:Output File:_files'
    '(--no-color --no-colour)'{--no-color,--no-colour}'[Disable all colored output]'
    '(--force-color --force-colour)'{--force-color,--force-colour}'[Force colored output]'
)

_salt_comp(){
    case "$service" in
        salt)
            _arguments -C \
                "${words[(r)$_target_opt_pat[1]]+!}:minions:_minions" \
                ':modules:_modules' \
                "$_target_options[@]" \
                "$_common_opts[@]" \
                "$_master_options[@]" \
                "$_logging_options[@]" \
                "$_out_opts[@]"
            ;;
        salt-call)
            _arguments -C \
                ':modules:_modules' \
                "$_minion_options[@]" \
                "$_common_opts[@]" \
                "$_logging_options[@]" \
                "$_out_opts[@]"
            ;;
        salt-cp)
            _arguments -C \
                "${words[(r)$_target_opt_pat[1]]+!}:minions:_minions" \
                "$_target_options[@]" \
                "$_common_opts[@]" \
                "$_logging_options[@]" \
                ':Source File:_files' \
                ':Destination File:_files'
            ;;
        salt-run)
            _arguments -C \
                ":runners:_runners" \
                "$_runner_options[@]" \
                "$_common_opts[@]" \
                "$_logging_options[@]"
            ;;
        salt-key)
            _arguments -C \
                "$_key_options[@]" \
                "${_common_opts[@]:#'-t --timeout\)'*}" \
                "${_logging_options[@]:#'(-l --log-level)'*}"
            ;;
    esac
}

() {
    local curcontext=${curcontext%:*}:salt_dir
    if ! zstyle -m ":completion:$curcontext:" cache-policy '*'; then
        zstyle ":completion:$curcontext:" cache-policy _salt_caching_policy
    fi

    if _cache_invalid salt/salt_dir || ! _retrieve_cache salt/salt_dir; then
        salt_dir="${$(python2 -c 'import sys; del sys.path[0]; import salt; print(salt.__file__);')%__init__*}"
        _store_cache salt/salt_dir salt_dir
    fi
}

_salt_comp "$@"
