// Copyright 2017 Jeremy Wall <jeremy@marzhillstudios.com>
//
//  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 super::{ascii_ws, eoi, Result};
use iter::{StrIter, SliceIter};

make_fn!(proto<StrIter, &str>,
     do_each!(
         proto => until!(text_token!("://")),
         _ => must!(text_token!("://")),
         (proto)
     )
 );

make_fn!(domain<StrIter, &str>,
     until!(either!(
         discard!(text_token!("/")),
         discard!(ascii_ws),
         eoi))
 );

make_fn!(path<StrIter, &str>,
      until!(either!(discard!(ascii_ws), eoi))
 );

make_fn!(sliceit<SliceIter<u8>, ()>,
    do_each!(
        _ => input!(),
        end_of_input => eoi,
        (end_of_input)
    )
);

make_fn!(long_string_path<SliceIter<u8>, ()>,
    do_each!(
        _ => input!(),
        end_of_input => eoi,
        (end_of_input)
    )
);

make_fn!(pub url<StrIter, (Option<&str>, Option<&str>, &str)>,
     do_each!(
         _ => input!(),
         protocol => optional!(proto),
         domain => optional!(domain),
         path => path,
         (protocol, domain, path)
     )
 );

#[test]
fn test_url_parser() {
    let iter = StrIter::new("http://example.com/some/path ");
    let result = url(iter);
    assert!(result.is_complete());
    if let Result::Complete(_, (proto, domain, path)) = result {
        assert!(proto.is_some());
        assert!(domain.is_some());
        assert_eq!(path, "/some/path");
    }
}

#[test]
fn test_slice_iter_make_fn() {
    let iter = SliceIter::from("yo!");
    let result = sliceit(iter);
    assert!(result.is_fail());
}

#[test]
fn test_slice_iter_make_fn_long_error_path() {
    let iter = SliceIter::from("yo!");
    let result = long_string_path(iter);
    assert!(result.is_fail());
}