#!/bin/sh
# Master-Link API - Serve SecuBox IPK bundle
# POST /api/master-link/ipk
# Auth: Token-validated

# NOTE: Headers are sent by ml_ipk_serve, not here
# Handle CORS preflight first
if [ "$REQUEST_METHOD" = "OPTIONS" ]; then
	echo "Content-Type: text/plain"
	echo "Access-Control-Allow-Origin: *"
	echo "Access-Control-Allow-Methods: POST, OPTIONS"
	echo "Access-Control-Allow-Headers: Content-Type"
	echo ""
	exit 0
fi

if [ "$REQUEST_METHOD" = "GET" ]; then
	# GET with query string token - for direct download
	echo "Content-Type: application/json"
	echo "Access-Control-Allow-Origin: *"
	echo ""

	# Load library
	. /usr/lib/secubox/master-link.sh >/dev/null 2>&1

	# Parse token from query string
	token=""
	if [ -n "$QUERY_STRING" ]; then
		token=$(echo "$QUERY_STRING" | sed -n 's/.*token=\([^&]*\).*/\1/p')
	fi

	if [ -z "$token" ]; then
		echo '{"error":"missing_token","hint":"POST with {\"token\":\"...\"} or GET with ?token=..."}'
		exit 0
	fi

	ml_ipk_serve "$token"
	exit 0
fi

if [ "$REQUEST_METHOD" != "POST" ]; then
	echo "Content-Type: application/json"
	echo "Access-Control-Allow-Origin: *"
	echo ""
	echo '{"error":"method_not_allowed"}'
	exit 0
fi

# Load library
. /usr/lib/secubox/master-link.sh >/dev/null 2>&1

# Read POST body
read -r input

token=$(echo "$input" | jsonfilter -e '@.token' 2>/dev/null)

if [ -z "$token" ]; then
	echo "Content-Type: application/json"
	echo "Access-Control-Allow-Origin: *"
	echo ""
	echo '{"error":"missing_token"}'
	exit 0
fi

ml_ipk_serve "$token"