def construct_query(net, channel, src, num, size):
    # Get the initial query
    extra_must = []
    if num:
        extra_must.append({"match": {"num": num}})
    types = ["msg", "notice", "action", "kick", "topic", "mode"]
    query_should = [{"match": {"type": x}} for x in types]
    query = {
        "size": size,
        "query": {
            "bool": {
                "must": [
                    {"match": {"net": net}},
                    {"match": {"channel": channel}},
                    {"match": {"src": src}},
                    {
                        "bool": {
                            "should": query_should,
                        }
                    },
                    *extra_must,
                ]
            }
        },
        "fields": [
            "nick",
            "ident",
            "host",
            "channel",
            "ts",
            "msg",
            "type",
            "net",
            "src",
        ],
        "_source": False,
    }
    return query