#!/bin/sh
# ---------------------------------------------------------------------------
# WeBrake updater — pulls the latest app.py and index.html (and this script)
# directly from the repo and restarts the service.
#
# token.json is local-only: it is never fetched from the repo and never
# overwritten by this script.
#
#   /opt/webrake/update.sh
# ---------------------------------------------------------------------------
set -eu

REPO_RAW="${WEBRAKE_REPO:-https://gogs.av2x.dev/av2x/WeBrake/raw/master}"
APP_DIR="/opt/webrake"

say() { printf '\033[1;33m[WeBrake]\033[0m %s\n' "$*"; }
die() { printf '\033[1;31m[WeBrake]\033[0m %s\n' "$*" >&2; exit 1; }

[ "$(id -u)" = "0" ] || die "Run as root inside the Alpine container."
[ -d "$APP_DIR" ] || die "WeBrake is not installed at $APP_DIR — run install.sh first."

changed=0
for f in app.py index.html update.sh; do
    say "Fetching $f ..."
    wget -q -O "$APP_DIR/$f.new" "$REPO_RAW/$f" || die "Failed to fetch $f from the repo."
    if [ -f "$APP_DIR/$f" ] && cmp -s "$APP_DIR/$f" "$APP_DIR/$f.new"; then
        rm -f "$APP_DIR/$f.new"
        say "  $f unchanged."
    else
        # Keep one backup of the previous version.
        [ -f "$APP_DIR/$f" ] && cp "$APP_DIR/$f" "$APP_DIR/$f.bak"
        mv "$APP_DIR/$f.new" "$APP_DIR/$f"
        say "  $f updated (previous copy at $f.bak)."
        changed=1
    fi
done
chmod +x "$APP_DIR/update.sh"

if [ "$changed" = "1" ]; then
    say "Restarting WeBrake service..."
    rc-service webrake restart || say "Could not restart via OpenRC — restart manually."
    say "Update complete. token.json was left untouched."
else
    say "Already up to date."
fi