#pragma once

namespace TestUtil {
    inline std::string ReadFile(const std::filesystem::path& p) {
        std::ifstream f(p);
        std::stringstream ss;
        ss << f.rdbuf();
        return ss.str();
    }

    inline std::filesystem::path CopyFixtureToTemp(std::string_view testName, const std::filesystem::path& source) {
        namespace fs = std::filesystem;
        fs::path tmp = fs::temp_directory_path() / std::format("crafter-test-{}", testName);
        fs::remove_all(tmp);
        fs::copy(source, tmp, fs::copy_options::recursive);
        return tmp;
    }

    struct CmdResult {
        int exitCode;
        std::string output;
    };

    inline CmdResult RunInDir(const std::filesystem::path& cwd, std::string_view command) {
        namespace fs = std::filesystem;
        // Log inside cwd so parallel test drivers don't trample each other.
        fs::path log = cwd / ".crafter-cmd-output.log";
        std::string cmd = std::format("cd '{}' && {} > '{}' 2>&1",
            cwd.string(), command, log.string());
        int rc = std::system(cmd.c_str());
        std::string out = ReadFile(log);
        std::error_code ec;
        fs::remove(log, ec);
        return {rc, std::move(out)};
    }
}