#include "sqlControler.h"
bool debugMode = false;
std::vector<std::string> getFutureDates()
{
	std::vector<std::string> futureDates;

	// 获取当前时间点
	auto now = std::chrono::system_clock::now();

	for (int i = 0; i < 30; i++) {
		// 将当前时间点加上指定天数
		auto future = now + std::chrono::hours(24 * i);

		// 将时间转换为时间结构体
		std::time_t futureTime = std::chrono::system_clock::to_time_t(future);

		// 将时间结构体格式化为 "年月日" 的字符串
		std::tm* futureTm = std::localtime(&futureTime);
		std::ostringstream oss;
		oss << futureTm->tm_year + 1900 << '-' << std::setw(2) << std::setfill('0') << futureTm->tm_mon + 1
			<< '-' << std::setw(2) << std::setfill('0') << futureTm->tm_mday;

		futureDates.push_back(oss.str());
	}

	return futureDates;
}
int callback(void* data, int argc, char** argv, char** azColName) {
	std::vector<sqlDatas>* result = reinterpret_cast<std::vector<sqlDatas>*>(data);

	for (int i = 0; i < argc; i++) {
		std::string columnName = azColName[i];
		std::string columnValue = argv[i] ? argv[i] : "NULL";
		sqlDatas data;
		data.dataName = columnName;
		data.valueText = columnValue;
		result->push_back(data);
	}

	return 0;
}
void sqlController::initPara()
{
	QString destinationFilePath;
	{//每次启动备份文件
		QFile sourceFile(QString::fromStdString(dataBasePath));
		if (!sourceFile.open(QIODevice::ReadOnly)) {
			qDebug() << "无法打开源文件： " << sourceFile.errorString();
		}
		else
		{
			destinationFilePath = QString::fromStdString(dataBasePath);
			destinationFilePath.insert(destinationFilePath.lastIndexOf(".db"), "-temp");
			QFile destinationFile(destinationFilePath);
			if (!destinationFile.open(QIODevice::WriteOnly)) {
				qDebug() << "无法打开目标文件： " << destinationFile.errorString();
			}
			else
			{
				QByteArray fileData = sourceFile.readAll();
				destinationFile.write(fileData);
				sourceFile.close();
				destinationFile.close();
			}
		}
		//qDebug() << "文件备份成功: " << destinationFile ;
	}//打开数据库文件
	dataBasePath = destinationFilePath.toStdString();
	int rc = sqlite3_open(dataBasePath.c_str(), &db);  // 打开内存数据库，也可以指定文件路径打开实际数据库

	if (rc != SQLITE_OK) {
		std::cout << "无法打开数据库: " << sqlite3_errmsg(db) << "path:" << dataBasePath;
		return;
	}
}
void sqlController::checkCol(sqlite3* db, std::string tableName, std::string columnName) 
{
	try 
	{
		// 执行查询，检查表是否存在并且包含指定的列
		const char* query = "SELECT sql FROM sqlite_master WHERE type='table' AND name=?";
		sqlite3_stmt* stmt;
		int rc = sqlite3_prepare_v2(db, query, -1, &stmt, nullptr);

		if (rc != SQLITE_OK) {
			std::cerr << "无法准备查询: " << sqlite3_errmsg(db) << std::endl;
		}
		sqlite3_bind_text(stmt, 1, tableName.c_str(), -1, SQLITE_STATIC);

		if (sqlite3_step(stmt) == SQLITE_ROW) {
			// 表存在，现在检查是否包含指定的列
			const char* tableDefinition = reinterpret_cast<const char*>(sqlite3_column_text(stmt, 0));
			if (sqlite3_strlike(columnName.c_str(), tableDefinition, 0)) {
				//std::cout << "table '" << tableName << "' exist and true '" << columnName << "'" << std::endl;
			}
			else {
				std::cout << "table '" << tableName << "' exist ,but not true '" << columnName << "'" << std::endl;
			}
		}

		// 清理资源
		sqlite3_finalize(stmt);

	}

	catch (std::exception& e) {
		std::cerr << "SQLite异常: " << e.what() << std::endl;
	}

}
bool sqlController::addData(sqlDataStruct data)
{
	if (data.SN.empty())//SN码为空，将停止处理
	{
		qDebug() << "[INFO] " << " SN empty!";
		return false;
	}

	std::string query = "SELECT COUNT(*) FROM \'" + getCurrentTableName() + "\' WHERE sn = '" + data.SN + "'; ";

	if (debugMode == true)
	{
		std::cout << query << "\n" << endl;
		qDebug() << "sql query:" << QString::fromStdString(query);
	}
	sqlite3_stmt* statement;

	int result = sqlite3_prepare_v2(db, query.c_str(), -1, &statement, nullptr);//执行语句

	if (result == SQLITE_OK) {
		if (sqlite3_step(statement) == SQLITE_ROW) {
			if (sqlite3_column_int(statement, 0) > 0)//查询出来的行数大于0
			{
				//拼接数据
				std::string updateQuery = "UPDATE \'" + getCurrentTableName() + "\' SET send=1,";
				for (auto d : data.dataVec)
				{
					updateQuery += d.dataName + " = ";
					if (d.valueDouble != 0)
						updateQuery += std::to_string(d.valueDouble) + ",";
					else if (d.valueInt != 0)
						updateQuery += std::to_string(d.valueInt) + ",";
					else//TEXT
						updateQuery += "\'" + d.valueText + "\',";
				}
				updateQuery.replace(updateQuery.find_last_of(","), 1, " WHERE SN = \'" + data.SN + "\';");
				int rc = sqlite3_exec(db, updateQuery.c_str(), nullptr, nullptr, nullptr);
				if (debugMode == true)
				{
					std::cout << updateQuery << endl;
					qDebug() << "sql query:" << QString::fromStdString(updateQuery);
				}
				if (rc != SQLITE_OK) {
					std::cout << "更新操作失败: " << sqlite3_errmsg(db) << ";" << updateQuery;
					sqlite3_finalize(statement);
					return false;
				}
			}
			else {
				std::string insertQuery = "INSERT INTO \'" + getCurrentTableName() + "\' (send,SN,";
				for (auto d : data.dataVec)
					insertQuery += d.dataName + ",";
				insertQuery.replace(insertQuery.find_last_of(","), 1, ") VALUES (1,\'" + data.SN  + "\',");
				for (auto d : data.dataVec)
				{
					if (d.valueDouble != 0)
						insertQuery += std::to_string(d.valueDouble) + ",";
					else if (d.valueInt != 0)
						insertQuery += std::to_string(d.valueInt) + ",";
					else//TEXT
						insertQuery += "\'" + d.valueText + "\',";
				}
				insertQuery.replace(insertQuery.find_last_of(","), 1, " );");
				if (debugMode == true)
				{
					std::cout << insertQuery << endl;
					qDebug() << "sql query:" << QString::fromStdString(insertQuery);
				}
				int rc = sqlite3_exec(db, insertQuery.c_str(), nullptr, nullptr, nullptr);
				if (rc != SQLITE_OK) {
					std::cout << "插入操作失败: " << sqlite3_errmsg(db) << ";" << insertQuery;
					sqlite3_finalize(statement);
					return false;
				}
			}
		}
	}
	sqlite3_finalize(statement);
	return true;
}
int sqlController::checktSn(std::string SN)
{
	return 0;
	std::string query = "SELECT COUNT(*) FROM \'" + getCurrentTableName() + "\' WHERE sn LIKE '" + SN + "%'; ";
	if (debugMode == true)
	{
		std::cout << query << endl;
		qDebug() << "sql query:" << QString::fromStdString(query);
	}
	sqlite3_stmt* statement;
	int result = sqlite3_prepare_v2(db, query.c_str(), -1, &statement, nullptr);
	int resultReturn = -1;
	int num = 0;
	if (result == SQLITE_OK)
		if (sqlite3_step(statement) == SQLITE_ROW)
			num = sqlite3_column_int(statement, 0);
	if (num > 0)
	{
		query = "SELECT send FROM \'" + getCurrentTableName() + "\' WHERE sn =\'" + SN + "-" + std::to_string(num - 1) + "\' ; ";
		if (debugMode == true)
		{
			std::cout << query << endl;
			qDebug() << "sql query:" << QString::fromStdString(query);
		}
		std::vector<sqlDatas> rowData;
		int rc = sqlite3_exec(db, query.c_str(), callback, &rowData, 0);
		for (int i = 0; i < rowData.size(); i++)
		{
			if (!rowData[i].valueText.compare("1"))
			{
				num -= 1;
			}
		}
	}
	sqlite3_finalize(statement);
	return num;
}
#if 0
sqlDataStruct sqlController::selectData(std::string SN, int snCountIndex, int send)
{
	std::string query;
	int rc;
	//send设true
	{
		query = "UPDATE \'" + getCurrentTableName() + "\' SET send = " + std::to_string(send) + " WHERE sn = \'" + SN + "-" + std::to_string(snCountIndex) + "\' ; ";
		if (debugMode == true)
		{
			std::cout << query << endl;
			qDebug() << "sql query:" << QString::fromStdString(query);
		}
		rc = sqlite3_exec(db, query.c_str(), nullptr, nullptr, nullptr);
	}

	//////////////////////////////
	if (snCountIndex > 0)
		query = "SELECT * FROM \'" + getCurrentTableName() + "\' WHERE sn =\'" + SN + "-" + std::to_string(snCountIndex) + "\' ; ";
	else
		query = "SELECT * FROM \'" + getCurrentTableName() + "\' WHERE sn =\'" + SN + "-0\' ; ";

	if (debugMode == true)
	{
		std::cout << query << endl;
		qDebug() << "sql query:" << QString::fromStdString(query);
	}

	std::vector<sqlDatas> rowData;
	sqlDataStruct Respone;
	rc = sqlite3_exec(db, query.c_str(), callback, &rowData, 0);
	if (rc != SQLITE_OK) {
		std::cerr << "Failed to execute query: " << sqlite3_errmsg(db) << std::endl;
	}
	else
	{
		Respone.SN = SN;
		Respone.dataVec.swap(rowData);
		Respone.tableName = getCurrentTableName();
	}
	return Respone;
}
#endif
sqlDataStruct sqlController::selectData(std::string SN, std::string TableName)
{
	std::string query;
	int rc;
	//send设true

	//////////////////////////////
	query = "SELECT * FROM \'" + TableName + "\' WHERE sn =\'" + SN + "\' ; ";

	if (debugMode == true)
	{
		std::cout << query << endl;
		qDebug() << "sql query:" << QString::fromStdString(query);
	}

	std::vector<sqlDatas> rowData;
	sqlDataStruct Respone;
	rc = sqlite3_exec(db, query.c_str(), callback, &rowData, 0);
	if (rc != SQLITE_OK) {
		std::cerr << "Failed to execute query: " << sqlite3_errmsg(db) << std::endl;
	}
	else
	{
		Respone.SN = SN;
		Respone.dataVec.swap(rowData);
		Respone.tableName = TableName;
	}
	return Respone;
}
void sqlController::uninitlize()
{
	sqlite3_close(db);
	remove(dataBasePath.c_str());
}

// 回调函数，用于从sqlite_master表中提取表的名称
int TableCallback(void* data, int argc, char** argv, char** colName) {
	std::vector<std::string>* tableList = static_cast<std::vector<std::string>*>(data);
	for (int i = 0; i < argc; i++) {
		if (std::string(colName[i]) == "name") {
			tableList->push_back(argv[i]);
		}
	}
	return 0;
}

// 函数来查询数据库中的所有表
std::vector<std::string> sqlController::GetTables() {
	std::vector<std::string> tableList;
	char* errorMsg = nullptr;

	// 查询sqlite_master表来获取表的信息
	const char* query = "SELECT name FROM sqlite_master WHERE type='table';";
	int rc = sqlite3_exec(db, query, TableCallback, &tableList, &errorMsg);

	if (rc != SQLITE_OK) {
		std::cerr << "SQL error: " << errorMsg << std::endl;
		sqlite3_free(errorMsg);
	}

	return tableList;
}

// 回调函数，用于处理查询结果
int DataCallback(void* data, int argc, char** argv, char** colName) {
	std::vector<sqlDataStruct>* result = static_cast<std::vector<sqlDataStruct>*>(data);

	sqlDataStruct dataEntry;
	dataEntry.SN = argv[0]; // SN码
//	dataEntry.SN = argv[1]; // SN码

	for (int i = 2; i < argc; ++i) {
		sqlDatas dataItem;
		dataItem.dataName = colName[i];
		if (argv[i] != nullptr) {
			// 解析数据，根据需要将数据转换为int、double或string
			//try {
			//	dataItem.valueInt = std::stoi(argv[i]);
			//}
			//catch (const std::invalid_argument&) {
			//	try {
			//		dataItem.valueDouble = std::stod(argv[i]);
			//	}
			//	catch (const std::invalid_argument&) {
			//		dataItem.valueText = argv[i];
			//	}
			//}
			dataItem.valueText = argv[i];
		}
		dataEntry.dataVec.push_back(dataItem);
	}

	result->push_back(dataEntry);
	return 0;
}

// 查询SQLite数据库中的数据
std::vector<sqlDataStruct> sqlController::getAllData(const std::string& tableName) {
	std::vector<sqlDataStruct> result;
	char* errorMsg = nullptr;

	// 构建查询SQL语句
	std::string query = "SELECT * FROM \"" + tableName+"\"";

	// 执行查询
	int rc = sqlite3_exec(db, query.c_str(), DataCallback, &result, &errorMsg);

	if (rc != SQLITE_OK) {
		std::cerr << "SQL error: " << errorMsg << std::endl;
		sqlite3_free(errorMsg);
	}

	return result;
}