#! /usr/bin/env bash

KEYBIND="${1:-Ctrl g}"
NEWKEYBIND="${2:-${KEYBIND}}"

set -e

SRC_BASE=~/.config/zellij/config.kdl
SRC=${SRC_BASE}.default
[ -r "$SRC" ] || mv ~/.config/zellij/config.kdl ~/.config/zellij/config.kdl.default
[ ! -e "$SRC_BASE" ] || rm "$SRC_BASE"

[ -r "$SRC" ] && < "$SRC" sed -Ee '
    /^[[:space:]]+tmux \{/,/^[[:space:]]+\{/ {
        d
    }' \
| sed -Ee '
    s/bind "'"${KEYBIND}"'"/bind "'"${NEWKEYBIND}"'"/;
    s/(shared_except .* )"tmux" /\1/;
    s/(shared_except "locked")/\1 "tmux"/;
    s/shared {/shared_except "tmux" {/;
    s/("prompt") "tmux" {/\1 {/;
    s/([[:space:]]+)(pane {)/\1tmux {\n\1\1bind "'"${NEWKEYBIND}"'" { SwitchToMode "locked"; }\n\1}\n\1normal {\n\1\1bind "'"${NEWKEYBIND}"'" { SwitchToMode "tmux"; }\n\1}\n\1\2/;
' > ~/.config/zellij/config.kdl.locked

LNOPT="-s"
[ "$(uname)" = "Darwin" ] || LNOPT="${LNOPT}r"
ln ${LNOPT} ~/.config/zellij/config.kdl.locked ~/.config/zellij/config.kdl