#include <catch2/catch_test_macros.hpp>

import cargoxx.resolver;
import cargoxx.util;
import std;

using cargoxx::resolver::findmodule_scan;
using cargoxx::util::ErrorCode;

// `findmodule_scan` shells out to `cmake -P` to discover CMAKE_ROOT.
// Gate the test on the same env var we use for other live probes so
// CI without cmake can still pass.
namespace {

auto live_tests_enabled() -> bool {
    auto* e = std::getenv("CARGOXX_NETWORK_TESTS");
    return e != nullptr && *e != 0;
}

} // namespace

TEST_CASE("findmodule_scan picks FindSQLite3 for 'sqlite'",
          "[resolver][findmodule_scan][live]") {
    if (!live_tests_enabled()) {
        SKIP("CARGOXX_NETWORK_TESTS not set");
    }
    auto r = findmodule_scan("sqlite");
    REQUIRE(r.has_value());
    REQUIRE(r->find_package == "SQLite3 REQUIRED");
    REQUIRE_FALSE(r->targets.empty());
    auto has = [&](std::string_view t) {
        return std::ranges::find(r->targets, std::string{t}) != r->targets.end();
    };
    REQUIRE((has("SQLite3::SQLite3") || has("SQLite::SQLite3")));
    REQUIRE(r->module_file.filename() == "FindSQLite3.cmake");
}

TEST_CASE("findmodule_scan picks FindZLIB for 'zlib'",
          "[resolver][findmodule_scan][live]") {
    if (!live_tests_enabled()) {
        SKIP("CARGOXX_NETWORK_TESTS not set");
    }
    auto r = findmodule_scan("zlib");
    REQUIRE(r.has_value());
    REQUIRE(r->find_package == "ZLIB REQUIRED");
    REQUIRE(r->module_file.filename() == "FindZLIB.cmake");
}

TEST_CASE("findmodule_scan picks FindThreads for 'threads'",
          "[resolver][findmodule_scan][live]") {
    if (!live_tests_enabled()) {
        SKIP("CARGOXX_NETWORK_TESTS not set");
    }
    auto r = findmodule_scan("threads");
    REQUIRE(r.has_value());
    REQUIRE(r->find_package == "Threads REQUIRED");
}

TEST_CASE("findmodule_scan errors for a totally unknown name",
          "[resolver][findmodule_scan][live]") {
    if (!live_tests_enabled()) {
        SKIP("CARGOXX_NETWORK_TESTS not set");
    }
    auto r = findmodule_scan("definitelynotacmaketmodule12345");
    REQUIRE_FALSE(r.has_value());
    REQUIRE(r.error().code == ErrorCode::ResolutionUnknownPackage);
}