#include <gtest/gtest.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "common/clib-syslog.h"

// 在测试文件中声明未在头文件中声明的函数
extern "C" {
    int is_leap_year(int year);
    void nolocks_localtime(struct tm *tmp, time_t t, time_t tz, int dst);
    int verify_file(const char *path);
    int CreateDir(const char *path);
    void checkLogDir(const char *dir, char *logFileName);
    char getWeek();
    int wlock(int fd, int wait);
    int rlock(int fd, int wait);
    int ulock(int fd);
}

class ClibSyslogTest : public ::testing::Test {
protected:
    void SetUp() override {
        // 初始化测试环境
        syslog_init("test-category", LOG_LOCAL0);
    }

    void TearDown() override {
        // 清理测试环境
    }
};

TEST_F(ClibSyslogTest, SyslogInit) {
    // 测试 syslog_init 函数
    syslog_init("test-category", LOG_LOCAL0);
    // 没有返回值，无法直接断言
}

TEST_F(ClibSyslogTest, SyslogInfo) {
    // 测试 syslog_info 函数
    syslog_info(LOG_DEBUG, "test-module", "test-file", "test-function", 123, "test message");
    // 没有返回值，无法直接断言
}

TEST_F(ClibSyslogTest, IsLeapYear) {
    // 测试 is_leap_year 函数
    EXPECT_TRUE(is_leap_year(2020));
    EXPECT_FALSE(is_leap_year(2019));
}

TEST_F(ClibSyslogTest, NolocksLocaltime) {
    // 测试 nolocks_localtime 函数
    struct tm tmTime;
    time_t t = time(NULL);
    nolocks_localtime(&tmTime, t, 0, 0); // 使用 UTC 时间
    struct tm *expected_tm = gmtime(&t); // 使用 gmtime 获取 UTC 时间
    EXPECT_EQ(tmTime.tm_year, expected_tm->tm_year);
    EXPECT_EQ(tmTime.tm_mon, expected_tm->tm_mon);
    EXPECT_EQ(tmTime.tm_mday, expected_tm->tm_mday);
    EXPECT_EQ(tmTime.tm_hour, expected_tm->tm_hour);
    EXPECT_EQ(tmTime.tm_min, expected_tm->tm_min);
    EXPECT_EQ(tmTime.tm_sec, expected_tm->tm_sec);
}

TEST_F(ClibSyslogTest, VerifyFile) {
    // 测试 verify_file 函数
    EXPECT_TRUE(verify_file("/home"));
    EXPECT_FALSE(verify_file("/etc"));
}

TEST_F(ClibSyslogTest, CreateDir) {
    // 测试 CreateDir 函数
    const char* testDir = "/tmp/testdir_unique";
    EXPECT_EQ(CreateDir(testDir), 0);
    EXPECT_EQ(access(testDir, F_OK), -1);
    rmdir(testDir);
}

TEST_F(ClibSyslogTest, CheckLogDir) {
    // 测试 checkLogDir 函数
    char logFileName[128] = {0};
    checkLogDir("testdir", logFileName);
    EXPECT_STRNE(logFileName, "");
}

TEST_F(ClibSyslogTest, GetWeek) {
    // 测试 getWeek 函数
    char week = getWeek();
    EXPECT_GE(week, 0);
    EXPECT_LT(week, 7);
}

TEST_F(ClibSyslogTest, Wlock) {
    // 测试 wlock 函数
    int fd = open("/tmp/testfile", O_CREAT | O_RDWR, 0666);
    EXPECT_EQ(wlock(fd, 1), 0);
    close(fd);
    unlink("/tmp/testfile");
}

TEST_F(ClibSyslogTest, Rlock) {
    // 测试 rlock 函数
    int fd = open("/tmp/testfile", O_CREAT | O_RDWR, 0666);
    EXPECT_EQ(rlock(fd, 1), 0);
    close(fd);
    unlink("/tmp/testfile");
}

TEST_F(ClibSyslogTest, Ulock) {
    // 测试 ulock 函数
    int fd = open("/tmp/testfile", O_CREAT | O_RDWR, 0666);
    wlock(fd, 1);
    EXPECT_EQ(ulock(fd), 0);
    close(fd);
    unlink("/tmp/testfile");
}
