#include "apiUrl.hpp"
#include "hearthstoneApi.hpp"
#include <catch2/benchmark/catch_benchmark.hpp>
#include <catch2/benchmark/catch_chronometer.hpp>
#include <catch2/benchmark/detail/catch_analyse.hpp>
#include <catch2/benchmark/detail/catch_benchmark_function.hpp>
#include <catch2/benchmark/detail/catch_estimate_clock.hpp>
#include <catch2/catch_approx.hpp>
#include <catch2/catch_config.hpp>
#include <catch2/catch_test_macros.hpp>
#include <cstdint>
#include <fstream>
#include <nlohmann/json.hpp>
#include <string>
#include <tokenPool.hpp>

TEST_CASE("Retrieve API Token", "[generateApiToken]") {
    const std::string kCredentialsFile{"tests/resources/credentials.json"};
    Token aToken(kCredentialsFile);
    const std::string kTokenContent{aToken.text()};
    const std::string::size_type kTokenSize{kTokenContent.size()};
    REQUIRE(kTokenSize >= 30);
    REQUIRE(kTokenSize <= 40);
}

TEST_CASE("Retrieve number of cards", "[countCards]") {
    const std::string kCredentialsFile{};
    const std::string kContentType{"cards"};
    const std::string kRegion{"eu"};
    ApiUrl aApiUrl(kContentType, kRegion);
    aApiUrl.setLocale("fr_FR");
    aApiUrl.setGameMode("constructed");
    aApiUrl.setPageSize("1");
    TokenPool::feedTokenSource("tests/resources/credentials.json");
    const json kResponse = HearthstoneApi::makeApiRequest(
        aApiUrl, TokenPool::availableToken().value().text());
    REQUIRE(kResponse.size() > 0);
    REQUIRE(kResponse.contains("pageCount"));
    std::uint64_t kNumberOfCards{kResponse["pageCount"]};
    std::uint64_t kExpectedNumberOfCards{6178};
    REQUIRE(kNumberOfCards == kExpectedNumberOfCards);
}

TEST_CASE("Retrieve page once", "[retrievePageOnce]") {
    const std::string kCredentialsFile{"tests/resources/credentials.json"};
    Token aToken(kCredentialsFile);
    const std::string kContentType{"cards"};
    const std::string kRegion{"eu"};
    ApiUrl aApiUrl(kContentType, kRegion);
    aApiUrl.setLocale("fr_FR");
    aApiUrl.setGameMode("constructed");
    aApiUrl.setPageSize("16");
    TokenPool::feedTokenSource("tests/resources/credentials.json");
    const json kApiResponse = HearthstoneApi::makeApiRequest(
        aApiUrl, TokenPool::availableToken().value().text());
    REQUIRE(kApiResponse["cards"].size() == 16);
}

TEST_CASE("Retrieve pages 10 times without parallelization",
          "[retrievePagesNoParallel]") {
    const std::string kCredentialsFile{"tests/resources/credentials.json"};
    Token aToken(kCredentialsFile);
    const std::string kContentType{"cards"};
    const std::string kRegion{"eu"};
    ApiUrl aApiUrl(kContentType, kRegion);
    aApiUrl.setLocale("fr_FR");
    aApiUrl.setGameMode("constructed");
    aApiUrl.setPageSize("16");
    aApiUrl.setPage("1");
    TokenPool::feedTokenSource("tests/resources/credentials.json");
    std::string kTokenText{TokenPool::availableToken().value().text()};
    json kApiResponse = HearthstoneApi::makeApiRequest(aApiUrl, kTokenText);

    // Retrieve number of pages
    const int kNumberOfRetrievals{10};
    const int kNumberOfPages{kApiResponse["pageCount"]};
    REQUIRE(kNumberOfPages >= kNumberOfRetrievals);
    for (int i{1}; i < kNumberOfRetrievals; ++i) {
        REQUIRE(kApiResponse["cards"].size() == 16);
        aApiUrl.setPage(std::to_string(i + 1));
        kApiResponse = HearthstoneApi::makeApiRequest(aApiUrl, kTokenText);
    }
    REQUIRE(kApiResponse["cards"].size() >= 1);
    REQUIRE(kApiResponse["cards"].size() <= 16);
}

TEST_CASE("Retrieve pages 10 times with parallelization",
          "[retrievePagesParallel]") {
    const std::string kCredentialsFile{"tests/resources/credentials.json"};
    Token aToken(kCredentialsFile);
    const std::string kContentType{"cards"};
    const std::string kRegion{"eu"};
    ApiUrl aApiUrl(kContentType, kRegion);
    aApiUrl.setLocale("fr_FR");
    aApiUrl.setGameMode("constructed");
    aApiUrl.setPageSize("16");
    aApiUrl.setPage("1");
    std::vector<std::string> aRequests;
    TokenPool::feedTokenSource("tests/resources/credentials.json");
    std::string kTokenText{TokenPool::availableToken().value().text()};
    json kFirstPageJson = HearthstoneApi::makeApiRequest(aApiUrl, kTokenText);

    int kNumberOfPages{kFirstPageJson["pageCount"]};
    const int kNumberOfRetrievals{10};
    REQUIRE(kNumberOfPages >= kNumberOfRetrievals);
    for (int i{1}; i < kNumberOfRetrievals; ++i) {
        aApiUrl.setPage(std::to_string(i + 1));
        aRequests.push_back(aApiUrl.text());
    }
    std::vector<json> kApiResponses =
        HearthstoneApi::makeApiRequest(aRequests, kTokenText);
    kApiResponses.emplace(kApiResponses.begin(), kFirstPageJson);
    REQUIRE(kApiResponses.size() == kNumberOfRetrievals);
    for (const json &kApiResponse : kApiResponses) {
        REQUIRE(kApiResponse["cards"].size() == 16);
    }
}

TEST_CASE("Merge two card lists from two page requests", "[Merge pages]") {
    std::ifstream aFirstPage{"tests/resources/page_merge_00.json"};
    json kFirstPage = json::parse(aFirstPage);
    std::ifstream aSecondPage{"tests/resources/page_merge_01.json"};
    const json kSecondPage = json::parse(aSecondPage);

    json::reference aMergedCards = kFirstPage["cards"];
    for (auto &card : kSecondPage["cards"]) {
        aMergedCards.push_back(std::move(card));
    }
    REQUIRE(aMergedCards.size() == 32);
    std::ofstream aOutputJson("build/output_pages_merge.json");
    aOutputJson << aMergedCards.dump(4);
}

TEST_CASE("Retrieve a single page with HearthstoneApi::downloadCards",
          "[retrievePageOnceHearthstoneApi]") {
    const std::string kContentType{"cards"};
    const std::string kRegion{"eu"};
    ApiUrl aApiUrl(kContentType, kRegion);
    aApiUrl.setPage(3);
    TokenPool::feedTokenSource("tests/resources/credentials.json");
    json kApiResponse = HearthstoneApi::makeApiRequest(
        aApiUrl, TokenPool::availableToken().value().text());
    const json::size_type kExpectedNumberOfCards{kApiResponse["cards"].size()};
    TokenPool::feedTokenSource("tests/resources/credentials.json");
    kApiResponse = HearthstoneApi::downloadCards(
        aApiUrl, TokenPool::availableToken().value());
    const json::size_type kCurrentNumberOfCards{kApiResponse["cards"].size()};
    REQUIRE(kCurrentNumberOfCards == kExpectedNumberOfCards);
}