// main.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
#include <assert.h>
#include "lib_acl.h"
#include "acl_cpp/lib_acl.hpp"

class echo_thread : public acl::thread {
public:
	echo_thread(acl::sslbase_conf& ssl_conf, const char* addr, int count)
	: ssl_conf_(ssl_conf), addr_(addr), count_(count) {}

	~echo_thread(void) {}

private:
	acl::sslbase_conf&  ssl_conf_;
	acl::string addr_;
	int count_;

private:
	// @override
	void* run(void) {
		acl::socket_stream conn;
		conn.set_rw_timeout(60);
		if (!conn.open(addr_, 10, 10)) {
			printf("connect %s error %s\r\n",
				addr_.c_str(), acl::last_serror());
			return NULL;
		}

		// 给 socket 安装 SSL IO 过程
		if (!setup_ssl(conn)) {
			return NULL;
		}

		do_echo(conn);

		return NULL;
	}

	bool setup_ssl(acl::socket_stream& conn) {
		bool non_block = false;
		acl::sslbase_io* ssl = ssl_conf_.open(non_block);

		// 对于使用 SSL 方式的流对象，需要将 SSL IO 流对象注册至网络
		// 连接流对象中，即用 ssl io 替换 stream 中默认的底层 IO 过程
		if (conn.setup_hook(ssl) == ssl) {
			printf("setup ssl IO hook error!\r\n");
			ssl->destroy();
			return false;
		}
		printf("ssl setup ok!\r\n");

		return true;
	}

	void do_echo(acl::socket_stream& conn) {
		const char* data = "hello world!\r\n";
		int i;
		for (i = 0; i < count_; i++) {
			if (conn.write(data, strlen(data)) == -1) {
				break;
			}

			char buf[4096];
			int ret = conn.read(buf, sizeof(buf) - 1, false);
			if (ret == -1) {
				printf("read over, count=%d\r\n", i + 1);
				break;
			}
			buf[ret] = 0;
			if (i == 0) {
				printf("read: %s", buf);
			}
		}
		printf("thread-%lu: count=%d\n", acl::thread::self(), i);
	}
};

static void start_clients(acl::sslbase_conf& ssl_conf, const acl::string addr,
	int cocurrent, int count) {

	std::vector<acl::thread*> threads;
	for (int i = 0; i < cocurrent; i++) {
		acl::thread* thr = new echo_thread(ssl_conf, addr, count);
		threads.push_back(thr);
		thr->start();
	}

	for (std::vector<acl::thread*>::iterator it = threads.begin();
		it != threads.end(); ++it) {
		(*it)->wait(NULL);
		delete *it;
	}
}

static void usage(const char* procname) {
	printf("usage: %s -h [help]\r\n"
		" -s listen_addr\r\n"
		" -L ssl_libs_path\r\n"
		" -c cocurrent\r\n"
		" -n count\r\n"
		, procname);
}

int main(int argc, char* argv[]) {
	acl::string addr = "0.0.0.0|2443";
#if defined(__APPLE__)
	acl::string ssl_lib = "../libmbedtls.dylib";
#elif defined(__linux__)
	acl::string ssl_lib = "../libmbedtls.so";
#elif defined(_WIN32) || defined(_WIN64)
	acl::string ssl_path = "../mbedtls.dll";

	acl::acl_cpp_init();
#else
# error "unknown OS type"
#endif

	int ch, cocurrent = 10, count = 10;
	while ((ch = getopt(argc, argv, "hs:L:c:n:")) > 0) {
		switch (ch) {
		case 'h':
			usage(argv[0]);
			return 0;
		case 's':
			addr = optarg;
			break;
		case 'L':
			ssl_lib = optarg;
			break;
		case 'c':
			cocurrent = atoi(optarg);
			break;
		case 'n':
			count = atoi(optarg);
			break;
		default:
			break;
		}
	}

	acl::log::stdout_open(true);

	// 设置 MbedTLS 动态库路径
	const std::vector<acl::string>& libs = ssl_lib.split2(",; \t");
	if (libs.size() == 1) {
		acl::mbedtls_conf::set_libpath(libs[0]);
	} else if (libs.size() == 3) {
		// libcrypto, libx509, libssl);
		acl::mbedtls_conf::set_libpath(libs[0], libs[1], libs[2]);
	} else {
		printf("invalid ssl_lib=%s\r\n", ssl_lib.c_str());
		return 1;
	}

	// 加载 MbedTLS 动态库
	if (!acl::mbedtls_conf::load()) {
		printf("load %s error\r\n", ssl_lib.c_str());
		return 1;
	}

	// 初始化客户端模式下的全局 SSL 配置对象
	bool server_side = false;

	// SSL 证书校验级别
	acl::mbedtls_verify_t verify_mode = acl::MBEDTLS_VERIFY_NONE;

	acl::mbedtls_conf ssl_conf(server_side, verify_mode);

	start_clients(ssl_conf, addr, cocurrent, count);
	return 0;
}