#compdef moosic

_moosic_add_cmds() {

    # querying for information
    typeset -a queries
    queries=(
    "help:print brief description of command"
    "current:print name of currently playing song"
    "current-time:print the amount of time the current song has been playing"
    "list:print the list of items in the current song queue"
    "plainlist:print the current song queue without numbering each line"
    "history:print a list of items that were recently played"
    {status,state}":print the current state of the music daemon"
    "length:print the number of items in the queue"
    "ispaused:show whether the current song is paused or not"
    "islooping:show whether the server is in loop mode"
    "isadvancing:show whether the server is advancing through the song queue"
    "version:print version information for client and server"
    )


    # appending to song queue
    typeset -a appending
    appending=(
    {append,add}":add the files to be played to the end of the song queue"
    {pl-append,pl-add}":add the items listed in the given playlist files to end of queue"
    "prepend:add the files to be played to the beginning of the song queue"
    "pl-prepend:add the items in the given playlist files to beginning of queue"
    "mixin:add the files to the song queue and reshuffle the entire queue"
    "pl-mixin:add items in given playlist files to song queue and reshuffle the entire queue"
    "replace:replace the current contents of the song queue with files listed"
    "pl-replace:replace current contents of song queue with songs given in playlists"
    "insert:insert the given items at a given point in the song queue"
    "pl-insert:insert items from playlist files at specified point in queue"
    "putback:reinsert current song at start of song queue"
    "stagger-add:adds file list to end of queue after rearranging queue into staggered order"
    "stagger-merge:adds given file list to queue in interleaved fashion"
    "interval-add:inserts given songs with regular frequency specified by interval argument"
    )

    # removing
    typeset -a removing
    removing=(
    {cut,del}":removes all song queue items in given range"
    "crop:removes all song queue items that do not fall within given range"
    "remove:remove all song queue items matching any one of given regexps"
    "filter:remove all queue items not matching all given regexps"
    "clear:clear song queue"
    "wipe:clear song queue and stop current song"
    )

    # rearranging
    typeset -a rearranging
    rearranging=(
    "move:move all items in given range to new position in song queue"
    "move-pattern:moves all items matching the given regexp to new position"
    "swap:trade places of songs in two specified ranges"
    {shuffle,reshuffle}":reshuffle song queue within an optional range"
    "sort:sort queue within optional range"
    "reverse:reverse order of song queue"
    "partial-sort:sort items matching each regexp"
    "stagger:stagger items matching each regexp"
    "sub:perform regular expression substitution on all items in queue"
    "suball:like sub, but replace all occurrences of the pattern"
    )

    # general management
    typeset -a general
    general=(
    "next:jumps ahead, number of songs optional"
    "previous:retreats to previously played song"
    "goto:jumps to next song matching regexp"
    "gobackto:jumps back to most recent previous song matching regexp"
    "noadvance:halt queue advancement"
    "advance:resume queue advancement"
    "toggle-advance:toggle queue advancement"
    "stop:stop playing current song, stop processing queue, put current song back"
    "pause:suspend current song to resume it later"
    "unpause:unpause current song"
    "play:resume playing"
    "loop:turn loop mode on"
    "noloop:turn loop mode off"
    "toggle-loop:toggle loop mode"
    "reconfigure:daemon reload configuration file"
    "showconfig:show daemon filetype associations"
    "start-server:starts new instance of daemon with given options"
    {quit,exit,die}":quit daemon"
    )

    _describe queries queries -J queries
    _describe appending appending -J appending
    _describe removing removing -J removing
    _describe rearranging rearranging -J rearranging
    _describe general general -J general
}

_moosic() {
    typeset context state line
    typeset -A opt_args

    typeset -a filelist_opts
    filelist_opts=(
    '(-g --shuffle-global)'{-g,--shuffle-global}'[shuffle filelist after directory expansion]'
    '(-d --shuffle-dir)'{-d,--shuffle-dir}'[shuffle results of expanding the directories]'
    '(-a --shuffle-args)'{-a,--shuffle-args}'[shuffle actual command line arguments]'
    '(-o --inorder)'{-o,--inorder}'[do not shuffle filelist]'
    '(-s --sort)'{-s,--sort}'[sort filelist lexicographically after expansion]'
    '(-r --no-recurse)'{-r,--no-recurse}'[do not recurse through directories]'
    '(-n --no-file-munge)'{-n,--no-file-munge}'[do not modify names in expanded filelist]'
    '(-f --auto-find)'{-f,--auto-find}'[perform fuzzy search for music files]'
    '(-F --auto-grep)'{-F,--auto-grep}'[like --auto-find but with regexp]'
    '(-U --allow-unplayable)'{-U,--allow-unplayable}'[allow addition of unknown song types]'
    )

    typeset -a auto_opts
    auto_opts=(
    '(-m --music-dir)'{-m,--music-dir}'[directory used for auto-find, auto-grep]:directory:_files'
    )

    typeset -a main_opts
    main_opts=(
    '(-i --ignore-case)'{-i,--ignore-case}'[treat regexps as if they are case-insensitive]'
    '(-S --showcommands)'{-S,--showcommands}'[show all moosic commands, then exit]'
    '(-h --help)'{-h,--help}'[print help message then exit]'
    '(-v --version)'{-v,--version}'[print version information, then exit]'
    '(-c --config-dir)'{-c,--config-dir}'[configuration directory]:directory:_files'
    '(-t --tcp)'{-t,--tcp}'[talk to server at specified host and port]:host\:port:'
    '(-N --no-startserver)'{-N,--no-startserver}'[do not start moosicd server]'
    )

    typeset -a list_opts
    list_opts=(
    '(-C --current-in-list)'{-C,--current-in-list}'[print currently playing song in list]'
    )

    # GLOBAL ARGUMENTS
    # do not use the -A option here. It will break the processing of
    # positional arguments.
    _arguments $main_opts $list_opts $auto_opts $filelist_opts \
               '1: :->cmd' \
               '*:: :->posarg'

    if [[ $state == cmd ]]; then
        _moosic_add_cmds
    elif [[ $state == posarg ]]; then
        _moosic_cmd_${line[1]}
    fi
}

# Do something, but only if the current word is 2.
_do2() {
    if (( CURRENT == 2 )); then
        $@
    else
        _message 'no more arguments'
    fi
}

### QUERY COMMANDS

_moosic_cmd_help() {
    _do2 '_moosic_add_cmds'
}

_moosic_cmd_current() {
    _message 'no arguments'
}

_moosic_cmd_current-time() {
    _do2 '_message' 'strftime string'
}

_moosic_cmd_list() {
    _do2 '_message' 'range'
}

_moosic_cmd_plainlist() {
    _do2 '_message' 'range'
}

_moosic_cmd_history() {
    _do2 '_message' 'maximum number of entries'
}

_moosic_cmd_status() {
    _message 'no arguments'
}

_moosic_cmd_state() {
    _message 'no arguments'
}

_moosic_cmd_length() {
    _message 'no arguments'
}

_moosic_cmd_ispaused() {
    _message 'no arguments'
}

_moosic_cmd_islooping() {
    _message 'no arguments'
}

_moosic_cmd_isadvancing() {
    _message 'no arguments'
}

_moosic_cmd_version() {
    _message 'no arguments'
}

### APPENDING COMMANDS

_moosic_song_files()
{
    _arguments -A '-*' $main_opts $filelist_opts $auto_opts \
               '*:song file:_files'
}

_moosic_cmd_append() {
    _moosic_song_files
}

_moosic_cmd_add() {
    _moosic_song_files
}

_moosic_cmd_pl-append() {
    _moosic_song_files
}

_moosic_cmd_pl-add() {
    _moosic_song_files
}

_moosic_cmd_prepend() {
    _moosic_song_files
}

_moosic_cmd_pl-prepend() {
    _moosic_song_files
}

_moosic_cmd_mixin() {
    _moosic_song_files
}

_moosic_cmd_pl-mixin() {
    _moosic_song_files
}

_moosic_cmd_replace() {
    _moosic_song_files
}

_moosic_cmd_pl-replace() {
    _moosic_song_files
}

_moosic_cmd_insert() {
    _moosic_song_files
}

_moosic_cmd_pl-insert() {
    _moosic_song_files
}

_moosic_cmd_putback() {
    _message 'no arguments'
}

_moosic_cmd_stagger-add() {
    _moosic_song_files
}

_moosic_cmd_stagger-merge() {
    _moosic_song_files
}

_moosic_cmd_interval-add() {
    _arguments -A '-*' $main_opts $filelist_opts \
                  '1:interval:' \
                  '*:song file:_files'
}

### REMOVING COMMANDS

_moosic_cmd_cut() {
    _do2 '_message' 'range'
}

_moosic_cmd_del() {
    _do2 '_message' 'range'
}

_moosic_cmd_crop() {
    _do2 '_message' 'range'
}

_moosic_cmd_remove() {
    _do2 '_message' 'regex'
}

_moosic_cmd_filter() {
    _do2 '_message' 'regex'
}

_moosic_cmd_clear() {
    _message 'no arguments'
}

_moosic_cmd_wipe() {
    _message 'no arguments'
}

### REARRANGING COMMANDS

_moosic_cmd_move() {
    _arguments -A '-*' $main_opts \
               '1:range:' \
               '2:index:' \
               '*:no more arguments:'
}

_moosic_cmd_move-pattern() {
    _arguments -A '-*' $main_opts \
               '1:regex:' \
               '2:index:' \
               '*:no more arguments:'
}

_moosic_cmd_swap() {
    _arguments -A '-*' $main_opts \
               '1:range:' \
               '2:range:' \
               '*:no more arguments:'
}

_moosic_cmd_shuffle() {
    _arguments -A '-*' $main_opts \
               '1:range (optional):' \
               '*:no more arguments:'
}

_moosic_cmd_reshuffle() {
    _arguments -A '-*' $main_opts \
               '1:range (optional):' \
               '*:no more arguments:'
}

_moosic_cmd_sort() {
    _arguments -A '-*' $main_opts \
               '1:range (optional):' \
               '*:no more arguments:'
}

_moosic_cmd_reverse() {
    _arguments -A '-*' $main_opts \
               '1:range (optional):' \
               '*:no more arguments:'
}

_moosic_cmd_partial-sort() {
    _do2 '_message' 'regex'
}

_moosic_cmd_stagger() {
    _do2 '_message' 'regex'
}

_moosic_cmd_sub() {
    _arguments -A '-*' $main_opts \
               '1:pattern:' \
               '2:replacement:' \
               '3:range (optional):' \
               '*:no more arguments:'
}

_moosic_cmd_suball() {
    _arguments -A '-*' $main_opts \
               '1:pattern:' \
               '2:replacement:' \
               '3:range (optional):' \
               '*:no more arguments:'
}

### GENERAL COMMANDS

_moosic_cmd_next() {
    if (( CURRENT == 2 )); then

        typeset -a display display_cmd
        if zstyle -a ":completion:${curcontext}:next" \
                     'command' display_cmd; then
            $display_cmd
        else
            display=(${(f)"$(moosic list)"})
        fi

        typeset -a numbers
        numbers=({1..${#display}})

        compadd -V songs -d display -a numbers
    else
        _message 'no more arguments'
    fi
}

_moosic_cmd_previous() {
    _do2 '_message' 'number to skip'
}

_moosic_cmd_goto() {
    _do2 '_message' 'regex'
}

_moosic_cmd_gobackto() {
    _do2 '_message' 'regex'
}

_moosic_cmd_noadvance() {
    _message 'no arguments'
}

_moosic_cmd_advance() {
    _message 'no arguments'
}

_moosic_cmd_toggle-advance() {
    _message 'no arguments'
}

_moosic_cmd_stop() {
    _message 'no arguments'
}

_moosic_cmd_pause() {
    _message 'no arguments'
}

_moosic_cmd_unpause() {
    _message 'no arguments'
}

_moosic_cmd_play() {
    _message 'no arguments'
}

_moosic_cmd_loop() {
    _message 'no arguments'
}

_moosic_cmd_noloop() {
    _message 'no arguments'
}

_moosic_cmd_toggle-loop() {
    _message 'no arguments'
}

_moosic_cmd_reconfigure() {
    _message 'no arguments'
}

_moosic_cmd_showconfig() {
    _message 'no arguments'
}

_moosic_cmd_start-server() {
    _message 'options'
}

_moosic_cmd_quit() {
    _message 'no arguments'
}

_moosic_cmd_exit() {
    _message 'no arguments'
}

_moosic_cmd_die() {
    _message 'no arguments'
}

_moosic "$@"