### options
setopt NO_BEEP NO_CLOBBER \
       AUTO_CD CDABLE_VARS \
       EXTENDED_GLOB GLOB_DOTS GLOB_STAR_SHORT MARK_DIRS NUMERIC_GLOB_SORT \
       CORRECT_ALL INTERACTIVE_COMMENTS \
       GLOB_COMPLETE \
       AUTO_CONTINUE LONG_LIST_JOBS \
       NO_HIST_SAVE_BY_COPY HIST_IGNORE_DUPS SHARE_HISTORY HIST_REDUCE_BLANKS

### exports
## common
export EDITOR=${$(whence -p nvim vim vi micro nano emacs)[(f)1]}
export PAGER=${$(whence -p less micro nano more)[(f)1]:s/micro/& -readonly true -multiopen tab/:s/nano/& --view}
## grep
# XXX: deprecated in GNU
export GREP_OPTIONS=--color=auto
## histfile
export HISTFILE=~/.histfile
export HISTSIZE=1000
export SAVEHIST=1000
## python
export PYTHONSTARTUP=${XDG_CONFIG_HOME:-~/.config}/pythonrc
## vim
export VIMINIT='let$MYVIMRC=($XDG_CONFIG_HOME??($HOME."/.config"))."/vim/.vimrc"|execute"source"$MYVIMRC'

### imports
autoload -Uz zmv
autoload -Uz zmathfunc && zmathfunc

## vcs
zstyle ':vcs_info:*' enable git
#zstyle ':vcs_info:git*' check-for-changes true #too slow
zstyle ':vcs_info:git*:dotfiles' check-for-changes true
zstyle ':vcs_info:git*' check-for-staged-changes true
autoload -Uz vcs_info

## compinit
zstyle ':completion:*' auto-description '[arg] %d'
zstyle ':completion:*' expand suffix
zstyle ':completion:*' format '# %d'
zstyle ':completion:*' group-name ''
zstyle ':completion:*' ignore-parents parent
zstyle ':completion:*' insert-unambiguous false
zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
zstyle ':completion:*' list-prompt '%B%i%b'
zstyle ':completion:*' list-suffixes true
zstyle ':completion:*' matcher-list '' 'm:{[:lower:]}={[:upper:]}' 'm:{[:lower:][:upper:]}={[:upper:][:lower:]} r:|[._-]=* r:|=*' 'm:{[:lower:][:upper:]}={[:upper:][:lower:]} l:|=* r:|=*'
zstyle ':completion:*' menu select=1
zstyle ':completion:*' original false
zstyle ':completion:*' select-prompt '%B%l%b'
zstyle ':completion:*' verbose true
autoload -Uz compinit
cache=${XDG_CACHE_HOME:-~/.cache}/zsh
[[ -d $cache ]] || mkdir -p $cache
compinit -d $cache/.zcompdump
unset cache

### keys
## set up zkbd-style key array
if [[ ! -v _sev_force_zkbd && ( -v terminfo || -v termcap ) ]] {
    # use application (keypad transmit) mode if the terminal supports it
    # NOTE: we have to do this because termcap/terminfo keys are usually
    #       defined in application mode. terminals that do not define these
    #       capabilities are assumed to always be in application mode.
    if [[ ( -v terminfo[smkx] && -v terminfo[rmkx] ) ||
          ( -v termcap[ks]    && -v terminfo[ke] ) ]] {
        autoload -Uz add-zle-hook-widget
        function _enter-application-mode {
            [[ -v terminfo[smkx] ]] && echoti smkx || echotc ks
        }
        add-zle-hook-widget line-init _enter-application-mode
        function _exit-application-mode {
            [[ -v terminfo[rmkx] ]] && echoti rmkx || echotc ke
        }
        add-zle-hook-widget line-finish _exit-application-mode
        trap _exit-application-mode EXIT
    }
    # pull keys from terminfo/termcap
    # TODO: Menu and more Shift- modifiers
    typeset -gA key
    typeset -lA newkey
    if [[ -v terminfo ]] {
        src=terminfo
        newkey=(F1 kf1 F2 kf2 F3 kf3 F4 kf4 F5 kf5 F6 kf6 F7 kf7 F8 kf8 F9 kf9
                F10 kf10 F11 kf11 F12 kf12
                Backspace kbs
                Shift-Tab kcbt
                Insert    kich1
                Home      khome
                PageUp    kpp
                Delete    kdch1
                End       kend
                PageDown  knp
                Up        kcuu1
                Down      kcud1
                Left      kcub1
                Right     kcuf1
        )
    } elif [[ -v termcap ]] {
        src=termcap
        newkey=(F1 k1 F2 k2 F3 k3 F4 k4 F5 k5 F6 k6 F7 k7 F8 k8 F9 k9
                F10 k\; F11 F1 F12 F2
                Backspace kb
                Shift-Tab kB
                Insert    kI
                Home      kh
                PageUp    kP
                Delete    kD
                End       @7
                PageDown  kN
                Up        ku
                Down      kd
                Left      kl
                Right     kr
        )
    }
    for k v (${(kv)newkey}) {
        key[$k]=${${(P)src}[$v]}
    }
    unset k v src newkey
} else {
    # use zkbd if termcap/terminfo unavailable
    function find_keymap {
        for f in ${ZDOTDIR:-~}/.zkbd/$TERM{-${DISPLAY:-$VENDOR-$OSTYPE},}
            [[ -f $f ]] && keymap=$f && break
    }
    find_keymap
    if [[ -z $keymap ]] {
        if read -q "?Can't read terminfo. Add new zkbd keymap? [y/N]"; then
            echo
            autoload -Uz zkbd && zkbd
            unfunction zkbd
            find_keymap
        fi
        echo
    }
    if [[ -n $keymap ]] {
        source $keymap
    } else {
        echo -E "Failed to source keymap file $keymap" >&2
    }
    unfunction find_keymap; unset keymap
}

## load history search
autoload -Uz up-line-or-beginning-search down-line-or-beginning-search
zle -N up-line-or-beginning-search
zle -N down-line-or-beginning-search

## bind keys in both viins and vicmd modes
# NOTE: cursor keys are bound to normal/raw/nontransmit mode strings by
#       default, and keys like Home and End are not bound at all, so we rebind
#       everything to cover all scenarios
typeset -A a
a=(
    #key       viins                         vicmd
    Backspace 'backward-delete-char          vi-backward-char'
    Insert    'overwrite-mode                vi-insert'
    Home      'beginning-of-line'
    PageUp    'up-history                    -'
    Delete    'delete-char'
    End       'end-of-line'
    PageDown  'down-history                  -'
    Up        'up-line-or-beginning-search   vi-up-line-or-history'
    Down      'down-line-or-beginning-search vi-down-line-or-history'
    Left      'backward-char'
    Right     'forward-char'
)
for k v (${(kv)a}) {
    k=$key[$k]
    if [[ -z $k ]] { continue }
    v=($=v)
    bindkey -- $k $v[1]
    if [[ $v[2] == - ]] {
        # copy viins to vicmd verbatim
        bindkey -a -- $k $v[1]
    } elif (( $#v != 1 )) {
        # set vicmd to any other value
        bindkey -a -- $k $v[2]
    } else {
        # copy viins to vicmd and prepend vi- to it
        bindkey -a -- $k vi-$v[1]
    }
}
unset a k v

### aliases
## builtins
alias rehash='_sev_setpath; rehash'
## utils
alias h='fc -l -25'
alias j='jobs -l'
alias l='ls -AF'
if [[ "$OSTYPE" =~ '^(free|net)bsd' ]] {
    alias ll='ls -lAFho'
} else {
    alias ll='ls -lAFh'
}
alias p=\$PAGER
alias e=\$EDITOR
alias se=sudoedit
# be paranoid
alias cp='cp -ip'
alias mv='mv -i'
alias zm='noglob zmv -WiM'
alias zc='noglob zmv -WiC'
alias zl='noglob zmv -WiL'
alias sm='noglob zmv -Wip"sudo mv"'
alias sc='noglob zmv -Wip"sudo cp"'
alias sl='noglob zmv -Wip"sudo ln"'
if [[ "$OSTYPE" =~ '^freebsd' ]] {
    # don't confirm if only a few files are deleted
    alias rm='rm -I'
} else {
    # TODO: similar behavior for non-freebsd, or impliment in zsh
    alias rm='rm -i'
}
[[ -v commands[trash-put] ]] && alias t=trash-put
## py venv
alias va='source bin/activate'
alias vd=deactivate
## ps
source ~/.local/bin/.check-busybox
if [[ -v commands[pstree] ]] && ! check-busybox pstree; then
    # use pstree, but NOT busybox pstree because it kinda sucks
    ps="pstree -wg3"
elif [[ "$OSTYPE" =~ '^freebsd' ]]; then
    ps="ps -aSdfxwwouser=USR -ogroup=GRP -opid,nice=NI \
       -o%cpu,%mem,tty,stat,start=START -oetime,command"
elif check-busybox ps; then
    # busybox compatible
    ps="ps -eouser='USR     ' -ogroup='GRP     ' \
       -opid='  PID' -onice=' NI' -ovsz=' MEM' \
       -otty,stat,etime,comm"
else
    # XXX: untested, posix
    # TODO: support gnu ps
    ps="ps -eouser=USR -ogroup=GRP -opid,nice=NI \
       -opcpu=CPU -ovsz=MEM -otty,stat,etime,comm"
fi
unfunction check-busybox
if [[ "$(basename "$PAGER")" = "less" ]] {
    ps="$ps | less -S"
} else {
    ps="$ps | \"${PAGER:-more}\""
}
alias pa=$ps
alias spa="sudo $ps"
unset ps
## git
alias gd='git diff'
alias gdh='git diff HEAD'
alias ga='git add'
alias ga.='git add .'
alias gc='git commit'
alias gca='git commit --amend'
alias gp='git push'
alias gu='git pull'
## cd/zoxide
function up {
    \cd $(printf '../%.0s' {1..${1:-1}})
}
alias u=up
if [[ -v commands[zoxide] ]] {
    # https://github.com/ajeetdsouza/zoxide/issues/513
    eval "${$(zoxide init zsh):s#_files -/#_cd#}"
    alias cd=z
}
alias cd..=up
## dotfiles
alias dfu='d=${$(echo -E - ~/.zshenv):P:h:h};GIT_DIR=$d/.git GIT_WORK_TREE=$d git pull'

### hooks
autoload -Uz add-zsh-hook
_sev_exectime=
function sev_preexec {
    # change terminal title to show command
    print -n "\e]2;$(print -P '%#')${SSH_CLIENT+$USER@$HOST:}$1\e\\"
    # save last exec time for bell
    # XXX: does not run for blank cmdline
    _sev_exectime=$SECONDS
    # update gpg forward, to always have unique filename and avoid clashes
    if [[ -v _GNUPG_SOCK_DEST_EXT ]] {
        export _GNUPG_SOCK_DEST_EXT=$(date +%s).$RANDOM
        export _GNUPG_SOCK_DEST=$_GNUPG_SOCK_DEST_BASE.$_GNUPG_SOCK_DEST_EXT
    }
}
add-zsh-hook preexec sev_preexec
function sev_precmd {
    # change terminal title
    # TODO: update and send BEL when job status changes
    print -Pn "\e]2;%(1j,%j,)%#${SSH_CLIENT+$USER@$HOST:}%~\e\\"
    # bell if exec takes 5s
    if (( SECONDS - _sev_exectime >= 5 )) print "\a"
    # we could update vcs_info here, but let prompt take care of it
    # if it doesn't use vcs, it can be ignored safely
}
add-zsh-hook precmd sev_precmd
function sev_chpwd {
    # echo dir on cwd change
    ls -AF
}
add-zsh-hook chpwd sev_chpwd

### system-specific configs and aliases
case $OSTYPE; in
    freebsd*)
        ## colors
        export CLICOLOR=
        export LS_COLORS='di=34:ln=35:so=32:pi=33:ex=31:bd=46;34:cd=43;34:su=41;30:sg=46;30:tw=42;30:ow=43;30'

        ## sound
        function s { sysctl hw.snd.default_unit${1:+\=$1} }
        alias vol mixer

        ## install port dependencies from pkg (like pkgsrc `bmake bin-install')
        # XXX: should probably use package-depends where possible, breaks when
        #      port name is different to package name
        #      (eg. graphics/sdl20 == sdl2, devel/glib20 == glib2, etc)
        function portpkg {
            case "$1" {
            build|run)
                sudo pkg install -AU $(make ${1}-depends-list |
                           sed 's_/usr/ports/_ _' | tr -d '\n')
                ;;
            *)  echo "Usage: \`portpkg <build|run>' in a port directory"
                return 1;;
            }
        };;
    netbsd)
        ## sound
        function s {
            if [[ -z "$1" ]] {
                ll /dev/mixer /dev/sound /dev/audio
                return
            }
            for x in mixer sound audio; do
                ln -sf /dev/$x"$1" /dev/$x
            done
        }
        function vol {
            if [[ -z "$1" ]] {
                for x in $(mixerctl -a | grep 'outputs\.master'); do
                    echo -E - $x
                done
                return
            }
            mixerctl -w outputs.master"$2"="$1"
        };;
    *)
        ## sound
        # TODO: test alsa/oss/sndio/portaudio/pulse/pipewire in order of importance
        function s {}
        function vol {}
esac

### prompt
autoload -Uz promptinit && promptinit
prompt arrows

### load site-specific
load-site-dotfile zshrc