#!/bin/bash

__cards () {
    while IFS=$'\t' read idx name _; do
        printf "%s %s\n" "$idx" "$name"
    done < <(pactl list cards short 2> /dev/null)
}

__sinks () {
    while IFS=$'\t' read _ name _ _ _; do
        printf "%s\n" "$name"
    done < <(pactl list sinks short 2> /dev/null)
}

__sinks_idx () {
    while IFS=$'\t' read idx _ _ _ _; do
        printf "%s\n" "$idx"
    done < <(pactl list sinks short 2> /dev/null)
}

__sources () {
    while IFS=$'\t' read _ name _ _ _; do
        printf "%s\n" "$name"
    done < <(pactl list sources short 2> /dev/null)
}

__sink_inputs () {
    while IFS=$'\t' read idx _ _ _ _; do
        printf "%s\n" "$idx"
    done < <(pactl list sink-inputs short 2> /dev/null)
}

__source_outputs () {
    while IFS=$'\t' read idx _ _ _ _; do
        printf "%s\n" "$idx"
    done < <(pactl list source-outputs short 2> /dev/null)
}

__ports () {
    pactl list cards 2> /dev/null | awk -- \
        '/^\tPorts:/ {
            flag=1; next
         }

         /^\t[A-Za-z]/ {
             flag=0
         }

         flag {
             if (/^\t\t[A-Za-z]/)
                 ports = ports substr($0, 3, index($0, ":")-3) " "
         }

         END {
             print ports
         }'
}

__profiles () {
    pactl list cards 2> /dev/null | awk -- \
        '/^\tProfiles:/ {
            flag=1; next
        }

        /^\t[A-Za-z]/ {
            flag=0
        }

        flag {
            if (/^\t\t[A-Za-z]/)
                profiles = profiles substr($0, 3, index($0, ": ")-3) " "
        }

        END {
            print profiles
        }'
}

__all_modules () {
    while read name; do
        name=${name%% *}
        printf "%s\n" "$name"
    done < <(pulseaudio --dump-modules 2> /dev/null)
}

__loaded_modules () {
    while IFS=$'\t' read idx name _; do
        printf "%s %s\n" "$idx" "$name"
    done < <(pactl list modules short 2> /dev/null)
}

__resample_methods () {
    while read name; do
        printf "%s\n" "$name"
    done < <(pulseaudio --dump-resample-methods 2> /dev/null)
}

_pacat_file_formats () {
    while IFS=$'\t' read name _; do
        printf "%s\n" "$name"
    done < <(pacat --list-file-formats 2> /dev/null)
}

in_array() {
    local i
    for i in "${@:2}"; do
        [[ $1 = "$i" ]] && return
    done
}

_pactl() {
    local cur prev words cword preprev command
    local comps
    local flags='-h --help --version -s --server= --client-name='
    local list_types='short sinks sources sink-inputs source-outputs cards
                    modules samples clients'
    local commands=(stat info list exit upload-sample play-sample remove-sample
                    load-module unload-module move-sink-input move-source-output
                    suspend-sink suspend-source set-card-profile set-default-sink
                    set-sink-port set-default-source set-source-port set-sink-volume
                    set-source-volume set-sink-input-volume set-source-output-volume
                    set-sink-mute set-source-mute set-sink-input-mute
                    set-source-output-mute set-sink-formats set-port-latency-offset
                    subscribe help)

    _init_completion -n = || return
    preprev=${words[$cword-2]}

    for word in "${COMP_WORDS[@]}"; do
        if in_array "$word" "${commands[@]}"; then
            command=$word
            break
        fi
    done

    case $preprev in
        list) COMPREPLY=($(compgen -W 'short' -- "$cur")) ;;

        play-sample)
            comps=$(__sinks)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        move-sink-input)
            comps=$(__sinks)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        move-source-output)
            comps=$(__sources)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-card-profile)
            comps=$(__profiles)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-*-port)
            comps=$(__ports)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-*-mute) COMPREPLY=($(compgen -W 'true false toggle' -- "$cur")) ;;

        set-sink-formats)
            ;; #TODO

        set-port-*)
            comps=$(__ports)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;
        --server)
            compopt +o nospace
            _known_hosts_real "$cur"
            ;;
    esac
    [[ $COMPREPLY ]] && return 0

    case $prev in
        list) COMPREPLY=($(compgen -W '${list_types[*]}' -- "$cur")) ;;

        upload-sample) _filedir ;;

        play-sample) ;; # TODO

        remove-sample) ;; # TODO

        load-module)
            comps=$(__all_modules)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        unload-module)
            comps=$(__loaded_modules)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-card*)
            comps=$(__cards)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        *sink-input*)
            comps=$(__sink_inputs)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        *source-output*)
            comps=$(__source_outputs)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-sink-formats)
            comps=$(__sinks_idx)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        *sink*)
            comps=$(__sinks)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        *source*)
            comps=$(__sources)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-port*)
            comps=$(__cards)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        -s)
            _known_hosts_real "$cur" ;;
    esac
    [[ $COMPREPLY ]] && return 0

    case $cur in
        --server=*)
            cur=${cur#*=}
            _known_hosts_real "$cur"
            ;;

        -*)
            COMPREPLY=($(compgen -W '${flags[*]}' -- "$cur"))
            [[ $COMPREPLY == *= ]] && compopt -o nospace
            ;;

        *)
            [[ -z $command ]] && COMPREPLY=($(compgen -W '${commands[*]}' -- "$cur"))
            ;;
    esac
}
complete -F _pactl pactl

_pacmd() {
    local cur prev words cword preprev command
    local comps
    local flags='-h --help --version'
    local commands=(exit help list-modules list-cards list-sinks list-sources list-clients
                    list-samples list-sink-inputs list-source-outputs stat info
                    load-module unload-module describe-module set-sink-volume
                    set-source-volume set-sink-input-volume set-source-output-volume
                    set-sink-mute set-source-mut set-sink-input-mute
                    set-source-output-mute update-sink-proplist update-source-proplist
                    update-sink-input-proplist update-source-output-proplist
                    set-default-sink set-default-source kill-client kill-sink-input
                    kill-source-output play-sample remove-sample load-sample
                    load-sample-lazy load-sample-dir-lazy play-file dump
                    move-sink-input move-source-output suspend-sink suspend-source
                    suspend set-card-profile set-sink-port set-source-port
                    set-port-latency-offset set-log-target set-log-level set-log-meta
                    set-log-time set-log-backtrace)
    _init_completion -n = || return
    preprev=${words[$cword-2]}

    for word in "${COMP_WORDS[@]}"; do
        if in_array "$word" "${commands[@]}"; then
            command=$word
            break
        fi
    done

    case $preprev in
        play-sample|play-file)
            comps=$(__sinks)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        load-sample*) _filedir ;;

        move-sink-input)
            comps=$(__sinks)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        move-source-output)
            comps=$(__sources)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-card-profile)
            comps=$(__profiles)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-*port*)
            comps=$(__ports)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-*-mute) COMPREPLY=($(compgen -W 'true false' -- "$cur"));;

        set-sink-formats)
            ;; #TODO
    esac

    case $prev in
        list-*) ;;
        describe-module|load-module)
            comps=$(__all_modules)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        unload-module)
            comps=$(__loaded_modules)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        load-sample-dir-lazy) _filedir -d ;;
        play-file) _filedir ;;

        *sink-input*)
            comps=$(__sink_inputs)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        *source-output*)
            comps=$(__source_outputs)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        *sink*)
            comps=$(__sinks)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        *source*)
            comps=$(__sources)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-card*)
            comps=$(__cards)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-port-*)
            comps=$(__cards)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        set-log-target)
            COMPREPLY=($(compgen -W 'auto syslog stderr file: newfile:' -- "$cur"))
            ;;

        set-log-level)
            COMPREPLY=($(compgen -W '{0..4}' -- "$cur"))
            ;;

        set-log-meta|set-log-time|suspend)
            COMPREPLY=($(compgen -W 'true false' -- "$cur"))
            ;;
    esac

    case $cur in
        -*) COMPREPLY=($(compgen -W '${flags[*]}' -- "$cur")) ;;
        suspend)
            COMPREPLY=($(compgen -W 'suspend suspend-sink suspend-source' -- "$cur"))
            ;;

        load-sample)
            COMPREPLY=($(compgen -W 'load-sample load-sample-lazy load-sample-dir-lazy' -- "$cur"))
            ;;

        *)
            [[ -z $command ]] && COMPREPLY=($(compgen -W '${commands[*]}' -- "$cur"))
            ;;
    esac
}
complete -F _pacmd pacmd

_pasuspender () {
    local cur prev
    local flags='-h --help --version -s --server='

    _init_completion -n = || return

    case $cur in
        --server=*)
            cur=${cur#*=}
            _known_hosts_real "$cur"
            ;;

        -*)
            COMPREPLY=($(compgen -W '${flags[*]}' -- "$cur"))
            [[ $COMPREPLY == *= ]] && compopt -o nospace
            ;;
    esac

    case $prev in
        -s) _known_hosts_real "$cur" ;;
    esac
}
complete -F _pasuspender pasuspender

_padsp () {
    local cur prev
    local flags='-h -s -n -m -M -S -D -d'

    _get_comp_words_by_ref cur prev

    case $cur in
        -*) COMPREPLY=($(compgen -W '${flags[*]}' -- "$cur")) ;;
    esac

    case $prev in
        -s) _known_hosts_real "$cur" ;;
    esac
}
complete -F _padsp padsp

_pacat () {
    local cur prev comps
    local flags='-h --help --version -r --record -p --playback -v --verbose -s
                --server= -d --device= -n --client-name= --stream-name= --volume=
                --rate= --format= --channels= --channel-map= --fix-format --fix-rate
                --fix-channels --no-remix --no-remap --latency= --process-time=
                --latency-msec= --process-time-msec= --property= --raw --passthrough
                --file-format= --list-file-formats --monitor-stream='

    _init_completion -n = || return

    case $cur in
        --server=*)
            cur=${cur#*=}
            _known_hosts_real "$cur"
            ;;

        --device=*)
            cur=${cur#*=}
            comps=$(__sinks)
            comps+=" "$(__sources)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        --monitor-stream=*)
            cur=${cur#*=}
            comps=$(__sink_inputs)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        --rate=*)
            cur=${cur#*=}
            COMPREPLY=($(compgen -W '32000 44100 48000 9600 192000' -- "$cur"))
            ;;

        --file-format=*)
            cur=${cur#*=}
            comps=$(_pacat_file_formats)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        --*=*)
            ;;

        -*)
            COMPREPLY=($(compgen -W '${flags[*]}' -- "$cur"))
            [[ $COMPREPLY == *= ]] && compopt -o nospace
            ;;
        *) _filedir ;;
    esac

    case $prev in
        -s) _known_hosts_real "$cur" ;;
        -d)
            comps=$(__sinks)
            comps+=" "$(__sources)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;
    esac
}
complete -F _pacat pacat paplay parec parecord

_pulseaudio()
{
    local cur prev words cword
    local flags='-h --help --version --dump-conf --dump-resample-methods --cleanup-shm
                --start -k --kill --check --system= -D --daemonize= --fail= --high-priority=
                --realtime= --disallow-module-loading= --disallow-exit= --exit-idle-time=
                --scache-idle-time= --log-level= -v --log-target= --log-meta= --log-time=
                --log-backtrace= -p --dl-search-path= --resample-method= --use-pit-file=
                --no-cpu-limit= --disable-shm= --enable-memfd= -L --load= -F --file= -C -n'
    _init_completion -n = || return

    case $cur in
        --system=*|--daemonize=*|--fail=*|--high-priority=*|--realtime=*| \
            --disallow-*=*|--log-meta=*|--log-time=*|--use-pid-file=*| \
            --no-cpu-limit=*|--disable-shm=*|--enable-memfd=*)
            cur=${cur#*=}
            COMPREPLY=($(compgen -W 'true false' -- "$cur"))
            ;;

        --log-target=*)
            cur=${cur#*=}
            COMPREPLY=($(compgen -W 'auto syslog stderr file: newfile:' -- "$cur"))
            ;;

        --log-level=*)
            cur=${cur#*=}
            COMPREPLY=($(compgen -W '{0..4}' -- "$cur"))
            ;;

        --dl-search-path=*)
            cur=${cur#*=}
            _filedir -d
            ;;

        --file=*)
            cur=${cur#*=}
            _filedir
            ;;

        --resample-method=*)
            cur=${cur#*=}
            comps=$(__resample_methods)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        --load=*)
            cur=${cur#*=}
            comps=$(__all_modules)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;

        --*=*)
            ;;

        -*)
            COMPREPLY=($(compgen -W '${flags[*]}' -- "$cur"))
            [[ $COMPREPLY == *= ]] && compopt -o nospace
            ;;
    esac

    case $prev in
        -D) COMPREPLY=($(compgen -W 'true false' -- "$cur")) ;;
        -p) _filedir -d ;;
        -F) _filedir ;;
        -L)
            cur=${cur#*=}
            comps=$(__all_modules)
            COMPREPLY=($(compgen -W '${comps[*]}' -- "$cur"))
            ;;
    esac
}
complete -F _pulseaudio pulseaudio

#vim: set ft=zsh sw=4 ts=4 noet
