#include <catch2/catch_test_macros.hpp>

import cargoxx.cli;
import cargoxx.util;
import std;

using cargoxx::cli::cmd_clean;

namespace {

auto fresh_dir() -> std::filesystem::path {
    auto d = std::filesystem::temp_directory_path() /
             std::format("cargoxx-clean-test-{}", std::random_device{}());
    std::filesystem::create_directories(d);
    return d;
}

} // namespace

TEST_CASE("cmd_clean removes the build directory", "[cli][clean]") {
    auto root = fresh_dir();
    std::filesystem::create_directories(root / "build" / "debug");
    std::ofstream{root / "build" / "debug" / "stale.txt"} << "x";

    REQUIRE(cmd_clean(root).has_value());
    REQUIRE_FALSE(std::filesystem::exists(root / "build"));
}

TEST_CASE("cmd_clean is a no-op when build/ does not exist", "[cli][clean]") {
    auto root = fresh_dir();
    REQUIRE(cmd_clean(root).has_value());
}

TEST_CASE("cmd_clean leaves Cargoxx.lock and flake.lock alone", "[cli][clean]") {
    auto root = fresh_dir();
    std::filesystem::create_directories(root / "build");
    std::ofstream{root / "Cargoxx.lock"} << "version = 1\n";
    std::ofstream{root / "flake.lock"} << "{}\n";

    REQUIRE(cmd_clean(root).has_value());
    REQUIRE_FALSE(std::filesystem::exists(root / "build"));
    REQUIRE(std::filesystem::exists(root / "Cargoxx.lock"));
    REQUIRE(std::filesystem::exists(root / "flake.lock"));
}