nix/modules/home-manager/fish/interactiveShellInit.fish

# prompt
function get_hostname
    if test (uname) = Linux || test (uname) = Darwin
        has_command hostname && hostname | cut -d. -f1 || cat /etc/hostname
    else
        # assume bsd
        hostname | head -n 1 | cut -d. -f1
    end
end

function fish_greeting
    _prompt_prefix
    printf "%s\n" (date)
end

function preprocess_pwd
    test (pwd) = / && echo / && return 1
    test (pwd) = $NICE_HOME && echo "~" && return 0
    pwd \
        | cut -c2- \
        | gawk '{n=split($0,p,"/");for(i=1;i<=n;i++){if(i==n){printf "/%s",p[i]}else{printf "/%.3s",p[i]}}}'
end

function _maybe_sudo_prefix
    if set -q SUDO_USER
        set_color -b yellow black
        printf " SUDO "
        set_color -b normal normal
        printf " "
    end
end

function _maybe_aws_profile
    if set -q AWS_PROFILE && test $AWS_PROFILE = prd
        printf " "
        set_color -b yellow black
        printf " AWS_PROFILE=prd "
        set_color -b normal normal
    end
end

function _user_and_host
    if test $argv[1] -eq 0
        set_color -b normal blue
    else
        set_color -b normal red
    end
    printf "%s@%s" $USER (get_hostname)
end

function _cur_work_dir
    set_color -b normal magenta
    printf " %s" (preprocess_pwd)
end

function _last_cmd_duration
    set_color -b normal green
    set -q CMD_DURATION && printf " %dms" $CMD_DURATION
end

function _maybe_jobs_summary
    if jobs -q
        set_color -b normal cyan
        printf " &%d" (jobs -p | wc -l)
    end
end

function _user_prompt
    printf "\n"
    set_color brblack
    if test (id -u) -eq 0
        printf '# '
    else
        printf '$ '
    end
    set_color -b normal normal
end

function _maybe_git_summary
    set_color -b normal yellow
    set cur_sha (git rev-parse --short HEAD 2>/dev/null)
    if test $status = 0
        set num_changes (git status --porcelain | wc -l | string trim)
        if test $num_changes = 0
            set num_changes "✔"
        else
            set num_changes "+$num_changes"
        end
        printf " %s %s %s" (git branch --show-current) $cur_sha $num_changes
    end
end

function _prompt_marker
    # printf "%b133;A%b" "\x1b\x5d" "\x1b\x5c"
end

function _prompt_continuation_marker
    # printf "%b133;A;k=s%b" "\x1b\x5d" "\x1b\x5c"
end

function cmd_marker --on-variable _
    # printf "%b133;C%b" "\x1b\x5d" "\x1b\x5c"
end

function _prompt_prefix
    set_color -b normal brblack
    printf "# "
end

function fish_prompt
    set last_cmd_status $status
    _prompt_marker
    _prompt_prefix
    _maybe_sudo_prefix
    _user_and_host $last_cmd_status
    _cur_work_dir
    _maybe_git_summary
    _maybe_aws_profile
    _last_cmd_duration
    _maybe_jobs_summary
    _user_prompt
end

function fish_mode_prompt
end
function fish_right_prompt
end

# key bindings
fish_vi_key_bindings

set --universal fish_cursor_default block
set --universal fish_cursor_insert line
set --universal fish_cursor_block block
fish_vi_cursor
set --universal fish_vi_force_cursor 1

bind --mode insert --sets-mode default jk repaint
bind --mode insert --sets-mode default jK repaint
bind --mode insert --sets-mode default Jk repaint
bind --mode insert --sets-mode default JK repaint
bind --mode insert --sets-mode default jj repaint
bind --mode insert --sets-mode default jJ repaint
bind --mode insert --sets-mode default Jj repaint
bind --mode insert --sets-mode default JJ repaint

if has_command skim
    bind -M insert \cg skim-cd-widget
end

if has_command fzf
    bind -M insert \cg fzf-cd-widget
end

bind -M insert \cp up-or-search
bind -M insert \cn down-or-search
bind -M insert \ce end-of-line
bind -M insert \ca beginning-of-line

bind -M insert \cv edit_command_buffer
bind -M default \cv edit_command_buffer

test $PWD = $HOME && begin
    cd $NICE_HOME || cd
end

# tmux has issues when pasting sometimes where it seems to interpret a newline
# as C-j and jumps a pane and screws up the previous pane somehow
# I think a tput reset can fix it, but it's just annoying and I don't think I
# currently make heavy enough use of sessions and detaching and tmux-resurrect for
# it to be worth it

# if has_command tmux && ! set -q DO_NOT_AUTOSTART_TMUX && ! set -q TMUX
# 	tmux new-session -D -s "default" &>/dev/null || tmux attach -t "default"
# end