// Copyright 2023 Greptime Team
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use promql_parser::parser;

fn main() {
    let promql = r#"
        http_requests_total{
            environment=~"staging|testing|development",
            method!="GET"
        } offset 5m
    "#;

    match parser::parse(promql) {
        Ok(expr) => {
            println!("Prettify:\n{}\n", expr.prettify());
            println!("AST:\n{expr:?}");
        }
        Err(info) => println!("Err: {info:?}"),
    }
}