#include "vdm/net/url.hpp"

#include <string>

#include "vtest.hpp"

using vdm::net::split_url;
using vdm::net::SplitUrl;
using vdm::net::url_filename;

VT_TEST(url_basic_https) {
    auto u = split_url("https://example.com/path/to/file.iso?x=1#frag");
    VT_CHECK(u.valid);
    VT_CHECK_EQ(u.scheme, std::string("https"));
    VT_CHECK_EQ(u.host, std::string("example.com"));
    VT_CHECK(!u.port.has_value());
    VT_CHECK_EQ(u.path, std::string("/path/to/file.iso"));
    VT_CHECK_EQ(u.query, std::string("x=1"));
    VT_CHECK_EQ(u.fragment, std::string("frag"));
}

VT_TEST(url_port_userinfo_lowercasing) {
    auto u = split_url("HTTP://User:pw@Host.EXAMPLE.com:8080/a");
    VT_CHECK_EQ(u.scheme, std::string("http"));
    VT_CHECK_EQ(u.userinfo, std::string("User:pw"));
    VT_CHECK_EQ(u.host, std::string("host.example.com"));
    VT_REQUIRE(u.port.has_value());
    VT_CHECK_EQ(*u.port, 8080);
}

VT_TEST(url_ipv6_host) {
    auto u = split_url("http://[2001:db8::1]:9000/file");
    VT_CHECK_EQ(u.host, std::string("2001:db8::1"));
    VT_REQUIRE(u.port.has_value());
    VT_CHECK_EQ(*u.port, 9000);
}

VT_TEST(url_no_path) {
    auto u = split_url("https://example.com");
    VT_CHECK(u.valid);
    VT_CHECK_EQ(u.path, std::string(""));
}

VT_TEST(url_non_http_is_invalid_but_parsed) {
    auto u = split_url("ftp://host/file");
    VT_CHECK(!u.valid);  // not http/https
    VT_CHECK_EQ(u.scheme, std::string("ftp"));
    VT_CHECK(!u.is_http());
}

VT_TEST(url_garbage_does_not_crash) {
    VT_CHECK(!split_url("").valid);
    VT_CHECK(!split_url("not a url").valid);
    VT_CHECK(!split_url("://noscheme/x").valid);
    VT_CHECK(!split_url("http://").valid);
    auto a = split_url("http://////");
    auto b = split_url("https://h/%%%/%");
    (void)a;
    (void)b;
}

VT_TEST(url_filename_extraction) {
    VT_CHECK_EQ(url_filename("https://x.com/a/b/report%20final.pdf"),
                std::string("report final.pdf"));
    VT_CHECK_EQ(url_filename("https://x.com/a/b/file.iso?sig=abc"), std::string("file.iso"));
    VT_CHECK_EQ(url_filename("https://x.com/dir/"), std::string(""));
    VT_CHECK_EQ(url_filename("https://x.com"), std::string(""));
    VT_CHECK_EQ(url_filename("https://x.com/%2e%2e"), std::string(""));  // ".." rejected
    VT_CHECK_EQ(url_filename("https://x.com/a%2Fb"),
                std::string("a_b"));  // decoded '/' neutralised
}