Notify when slow commands finished in background (v2)

config.fish

set -gx NOTIFY_ON_COMMAND_DURATION 5000
function fish_right_prompt
    set -f check_neovim
    if test -n "$CMD_DURATION"; and test $CMD_DURATION -gt $NOTIFY_ON_COMMAND_DURATION
        if type -q wezterm; and test -n "$WEZTERM_PANE"
            set -l active_pid (osascript -e 'tell application "System Events" to get the unix id of first process whose frontmost is true')
            set -l active_pane (wezterm cli list-clients | perl -anle 'print $F[$#F] if $F[2] == '$active_pid)
            if test -n "$active_pane"; and test $WEZTERM_PANE -eq $active_pane
                set -f check_neovim 1
            end
        else
            set -f check_neovim 1
        end
        if test -n "$check_neovim"
            if test -z "$NVIM"; or ! type -q nvr
                return
            end
            set -l pid (nvr --remote-expr 'luaeval("vim.F.npcall(vim.fn.jobpid, vim.bo.channel)")')
            if test $fish_pid = $pid
                return
            end
        end
        set -l duration (bc -S2 -e $CMD_DURATION/1000)
        set -l msg (echo (history | head -1) returned $status after $duration s)
        if test -n "$NVIM"; and type -q nvr
            nvr --remote-send '<Cmd>lua vim.notify("'$msg'", vim.log.levels.WARN, { title = "command completed" })<CR>'
        else
            osascript -e 'display notification "'$msg'" with title "command completed"'
        end
    end
end