#include <catch2/catch_test_macros.hpp>
#include <Garbage/PercentEncoding.hpp>

TEST_CASE("Percent encoding/decoding tests")
{
    SECTION("Empty span")
    {
        std::vector<std::uint8_t> data;

        std::string encoded = Garbage::Percent::Encode(data);
        REQUIRE(encoded.size() == 0);

        REQUIRE(Garbage::Percent::Validate(encoded));

        std::vector<std::uint8_t> decoded = Garbage::Percent::Decode(encoded);
        REQUIRE(encoded.size() == 0);
    }

    SECTION("Validation rejections")
    {
        constexpr std::string_view invalid1 = "Random chars";
        REQUIRE_FALSE(Garbage::Percent::Validate(invalid1));

        constexpr std::string_view invalid2 = "%AFFAF%AF";
        REQUIRE_FALSE(Garbage::Percent::Validate(invalid2));
    }

    SECTION("Encoding short data")
    {
        constexpr std::string_view source("日");
        std::vector<std::uint8_t> data(source.begin(), source.end());

        std::string encoded = Garbage::Percent::Encode(data);

        REQUIRE(encoded == "%E6%97%A5");
        REQUIRE(Garbage::Percent::Validate(encoded));
    }

    SECTION("Decoding short data")
    {
        std::string data("%E6%97%A5");

        REQUIRE(Garbage::Percent::Validate(data));

        std::vector<std::uint8_t> decoded = Garbage::Percent::Decode(data);
        std::string destination(decoded.begin(), decoded.end());
        REQUIRE(destination == "日");
    }

    SECTION("Encoding longer data")
    {
        constexpr std::string_view source("日男昼持賃竹田");
        std::vector<std::uint8_t> data(source.begin(), source.end());

        std::string encoded = Garbage::Percent::Encode(data);

        REQUIRE(encoded == "%E6%97%A5%E7%94%B7%E6%98%BC%E6%8C%81%E8%B3%83%E7%AB%B9%E7%94%B0");
        REQUIRE(Garbage::Percent::Validate(encoded));
    }

    SECTION("Decoding longer data")
    {
        std::string data("%E6%97%A5%E7%94%B7%E6%98%BC%E6%8C%81%E8%B3%83%E7%AB%B9%E7%94%B0");

        REQUIRE(Garbage::Percent::Validate(data));

        std::vector<std::uint8_t> decoded = Garbage::Percent::Decode(data);
        std::string destination(decoded.begin(), decoded.end());
        REQUIRE(destination == "日男昼持賃竹田");
    }
}