/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */

use std::net::IpAddr;

use ipc_channel::ipc;
use net::connector::CACertificates;
use net::protocols::ProtocolRegistry;
use net::resource_thread::new_core_resource_thread;
use net::test::parse_hostsfile;
use net_traits::CoreResourceMsg;
use profile_traits::mem::ProfilerChan as MemProfilerChan;
use profile_traits::time::ProfilerChan;

use crate::create_embedder_proxy;

fn ip(s: &str) -> IpAddr {
    s.parse().unwrap()
}

#[test]
fn test_exit() {
    let (tx, _rx) = ipc::channel().unwrap();
    let (mtx, _mrx) = ipc::channel().unwrap();
    let (sender, receiver) = ipc::channel().unwrap();
    let (resource_thread, _private_resource_thread) = new_core_resource_thread(
        None,
        ProfilerChan(tx),
        MemProfilerChan(mtx),
        create_embedder_proxy(),
        None,
        CACertificates::Default,
        false, /* ignore_certificate_errors */
        std::sync::Arc::new(ProtocolRegistry::default()),
    );
    resource_thread.send(CoreResourceMsg::Exit(sender)).unwrap();
    receiver.recv().unwrap();
    // Workaround for https://github.com/servo/servo/issues/32912
    #[cfg(windows)]
    std::thread::sleep(std::time::Duration::from_millis(100));
}

#[test]
fn test_parse_hostsfile() {
    let mock_hosts_file_content = "127.0.0.1 foo.bar.com\n127.0.0.2 servo.test.server";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(2, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("foo.bar.com").unwrap());
    assert_eq!(
        ip("127.0.0.2"),
        *hosts_table.get("servo.test.server").unwrap()
    );
}

#[test]
fn test_parse_malformed_hostsfile() {
    let mock_hosts_file_content =
        "malformed file\n127.0.0.1 foo.bar.com\nservo.test.server 127.0.0.1";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(1, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("foo.bar.com").unwrap());
}

#[test]
fn test_parse_hostsfile_with_line_comment() {
    let mock_hosts_file_content =
        "# this is a line comment\n127.0.0.1 foo.bar.com\n# anothercomment";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(1, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("foo.bar.com").unwrap());
}

#[test]
fn test_parse_hostsfile_with_end_of_line_comment() {
    let mock_hosts_file_content =
        "127.0.0.1 foo.bar.com # line ending comment\n127.0.0.2 servo.test.server #comment";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(2, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("foo.bar.com").unwrap());
    assert_eq!(
        ip("127.0.0.2"),
        *hosts_table.get("servo.test.server").unwrap()
    );
}

#[test]
fn test_parse_hostsfile_with_2_hostnames_for_1_address() {
    let mock_hosts_file_content = "127.0.0.1 foo.bar.com baz.bar.com";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(2, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("foo.bar.com").unwrap());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("baz.bar.com").unwrap());
}

#[test]
fn test_parse_hostsfile_with_4_hostnames_for_1_address() {
    let mock_hosts_file_content = "127.0.0.1 moz.foo.com moz.bar.com moz.baz.com moz.moz.com";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(4, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("moz.foo.com").unwrap());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("moz.bar.com").unwrap());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("moz.baz.com").unwrap());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("moz.moz.com").unwrap());
}

#[test]
fn test_parse_hostsfile_with_tabs_instead_spaces() {
    let mock_hosts_file_content = "127.0.0.1\tfoo.bar.com\n127.0.0.2\tservo.test.server";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(2, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("foo.bar.com").unwrap());
    assert_eq!(
        ip("127.0.0.2"),
        *hosts_table.get("servo.test.server").unwrap()
    );
}

#[test]
fn test_parse_hostsfile_with_valid_ipv4_addresses() {
    let mock_hosts_file_content =
        "255.255.255.255 foo.bar.com\n169.0.1.201 servo.test.server\n192.168.5.0 servo.foo.com";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(3, hosts_table.len());
}

#[test]
fn test_parse_hostsfile_with_invalid_ipv4_addresses() {
    let mock_hosts_file_content = "256.255.255.255 foo.bar.com\n169.0.1000.201 servo.test.server \
                                   \n192.168.5.500 servo.foo.com\n192.abc.100.2 test.servo.com";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(0, hosts_table.len());
}

#[test]
fn test_parse_hostsfile_with_valid_ipv6_addresses() {
    let mock_hosts_file_content = "2001:0db8:0000:0000:0000:ff00:0042:8329 foo.bar.com\n\
                                   2001:db8:0:0:0:ff00:42:8329 moz.foo.com\n\
                                   2001:db8::ff00:42:8329 foo.moz.com moz.moz.com\n\
                                   0000:0000:0000:0000:0000:0000:0000:0001 bar.moz.com\n\
                                   ::1 foo.bar.baz baz.foo.com\n\
                                   2001:0DB8:85A3:0042:1000:8A2E:0370:7334 baz.bar.moz\n\
                                   :: unspecified.moz.com";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(9, hosts_table.len());
}

#[test]
fn test_parse_hostsfile_with_invalid_ipv6_addresses() {
    let mock_hosts_file_content = "12001:0db8:0000:0000:0000:ff00:0042:8329 foo.bar.com\n\
                                   2001:zdb8:0:0:0:gg00:42:t329 moz.foo.com\n\
                                   2002:0DB8:85A3:0042:1000:8A2E:0370:7334/1289 baz3.bar.moz";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(0, hosts_table.len());
}

#[test]
fn test_parse_hostsfile_with_end_of_line_whitespace() {
    let mock_hosts_file_content = "127.0.0.1 foo.bar.com \n\
                                   2001:db8:0:0:0:ff00:42:8329 moz.foo.com\n \
                                   127.0.0.2 servo.test.server ";
    let hosts_table = parse_hostsfile(mock_hosts_file_content);
    assert_eq!(3, hosts_table.len());
    assert_eq!(ip("127.0.0.1"), *hosts_table.get("foo.bar.com").unwrap());
    assert_eq!(
        ip("2001:db8:0:0:0:ff00:42:8329"),
        *hosts_table.get("moz.foo.com").unwrap()
    );
    assert_eq!(
        ip("127.0.0.2"),
        *hosts_table.get("servo.test.server").unwrap()
    );
}