#!/bin/sh
# download-2305.sh — fetch the OpenWrt 23.05.6 x86_64 rootfs and the
# few .ipk packages the testbed needs, and pre-extract them.
#
# Idempotent: skips any artifact that already exists.
#
# Run from balancer-lite-lua/testbed/.

set -e
cd "$(dirname "$0")"

VER=23.05.6
BASE_URL="https://downloads.openwrt.org/releases/$VER"
ROOTFS="$VER-x86-64-rootfs.tar.gz"

mkdir -p ipks

# 1. Official rootfs tarball
if [ ! -f "$ROOTFS" ]; then
    echo "Fetching $ROOTFS ..."
    curl -fSL -o "$ROOTFS" "$BASE_URL/targets/x86/64/openwrt-$ROOTFS"
fi

# 2. .ipk payloads (from the 23.05.6 x86_64 base feed)
fetch_ipk() {
    f="$1"
    if [ -f "ipks/$f" ]; then
        echo "  $f: present"
        return 0
    fi
    for feed in "packages/x86_64/base" "packages/x86_64/packages" "packages/x86_64/routing" "targets/x86/64/packages"; do
        if curl -fsSL -o "ipks/$f" "$BASE_URL/$feed/$f"; then
            echo "  $f: fetched from $feed"
            return 0
        fi
    done
    echo "  $f: NOT FOUND in any feed" >&2
    rm -f "ipks/$f"
    return 1
}

fetch_ipk lua_5.1.5-11_x86_64.ipk
fetch_ipk liblua5.1.5_5.1.5-11_x86_64.ipk
fetch_ipk openssl-util_3.0.9-2_x86_64.ipk
fetch_ipk libopenssl3_3.0.9-2_x86_64.ipk
fetch_ipk ca-bundle_20241223-1_all.ipk

# 3. Pre-extract rootfs (busybox tar in the image can't read the
#    ar-based .ipk either, so extraction happens on the host)
if [ ! -d rootfs ] || [ -z "$(ls -A rootfs 2>/dev/null)" ]; then
    rm -rf rootfs ipk-extract
    mkdir -p rootfs ipk-extract
    echo "Extracting rootfs + ipk payloads ..."
    tar xzf "$ROOTFS" -C rootfs
    for ipk in ipks/*.ipk; do
        tar -xOf "$ipk" ./data.tar.gz | tar -xz -C ipk-extract
    done
fi

echo "Done. Build with: docker build -f Dockerfile-2305 -t openwrt-testbed-2305:latest ."