Files
soaricarus_api/src/database/CoverArtRepository.cpp
T

330 lines
9.2 KiB
C++

#include "database/CoverArtRepository.h"
#include <iostream>
#include <memory>
#include <sstream>
#include <string>
#include <cstring>
database::CoverArtRepository::CoverArtRepository(const std::string& path) : BaseRepository(path)
{ }
database::CoverArtRepository::CoverArtRepository(const model::BinaryPath& bConf) : BaseRepository(bConf)
{ }
std::vector<model::Cover> database::CoverArtRepository::retrieveRecords()
{
auto conn = setupMysqlConnection();
auto stmt = mysql_stmt_init(conn);
const std::string query = "SELECT * FROM CoverArt";
mysql_stmt_prepare(stmt, query.c_str(), query.size());
mysql_stmt_execute(stmt);
auto coverArts = parseRecords(stmt);
mysql_stmt_close(stmt);
mysql_close(conn);
return coverArts;
}
model::Cover database::CoverArtRepository::retrieveRecord(model::Cover& cov, type::CoverFilter filter = type::CoverFilter::id)
{
std::stringstream qry;
auto conn = setupMysqlConnection();
auto stmt = mysql_stmt_init(conn);
qry << "SELECT * FROM CoverArt WHERE ";
MYSQL_BIND params[1];
memset(params, 0, sizeof(params));
auto songTitleLength = cov.songTitle.size();
switch (filter) {
case type::CoverFilter::id:
qry << "CoverArtId = ?";
params[0].buffer_type = MYSQL_TYPE_LONG;
params[0].buffer = (char*)&cov.id;
params[0].length = 0;
params[0].is_null = 0;
break;
case type::CoverFilter::songTitle:
qry << "SongTitle = ?";
params[0].buffer_type = MYSQL_TYPE_STRING;
params[0].buffer = (char*)cov.songTitle.c_str();
params[0].length = &songTitleLength;
params[0].is_null = 0;
break;
default:
break;
}
qry << " LIMIT 1";
const std::string query = qry.str();
auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
status = mysql_stmt_bind_param(stmt, params);
status = mysql_stmt_execute(stmt);
auto covDb = parseRecord(stmt);
mysql_stmt_close(stmt);
mysql_close(conn);
std::cout << "retrieved cover art record" << std::endl;
return covDb;
}
bool database::CoverArtRepository::doesCoverArtExist(const model::Cover& cover, type::CoverFilter filter)
{
auto conn = setupMysqlConnection();
auto stmt = mysql_stmt_init(conn);
MYSQL_BIND params[1];
memset(params, 0, sizeof(params));
std::stringstream qry;
qry << "SELECT * FROM CoverArt WHERE ";
auto titleLength = cover.songTitle.size();
switch (filter) {
case type::CoverFilter::id:
qry << "CoverArtId = ?";
params[0].buffer_type = MYSQL_TYPE_LONG;
params[0].buffer = (char*)&cover.id;
params[0].length = 0;
params[0].is_null = 0;
break;
case type::CoverFilter::songTitle:
qry << "SongTitle = ?";
params[0].buffer_type = MYSQL_TYPE_STRING;
params[0].buffer = (char*)cover.songTitle.c_str();
params[0].length = &titleLength;
params[0].is_null = 0;
break;
default:
break;
}
qry << " LIMIT 1";
const auto query = qry.str();
auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
status = mysql_stmt_bind_param(stmt, params);
status = mysql_stmt_execute(stmt);
std::cout << "the query has been performed" << std::endl;
mysql_stmt_store_result(stmt);
auto rowCount = mysql_stmt_num_rows(stmt);
mysql_stmt_close(stmt);
mysql_close(conn);
return (rowCount > 0) ? true : false;
}
// TODO: change to prepared statement
void database::CoverArtRepository::deleteRecord(const model::Cover& cov)
{
auto conn = setupMysqlConnection();
const std::string query("DELETE FROM CoverArt WHERE CoverArtId = " + std::to_string(cov.id));
auto result = performMysqlQuery(conn, query);
mysql_close(conn);
}
void database::CoverArtRepository::saveRecord(const model::Cover& cov)
{
std::cout << "saving cover art record";
auto conn = setupMysqlConnection();
auto stmt = mysql_stmt_init(conn);
MYSQL_BIND params[2];
memset(params, 0, sizeof(params));
my_bool isNull;
const std::string query = "INSERT INTO CoverArt(SongTitle, ImagePath) VALUES(?, ?)";
auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
params[0].buffer_type = MYSQL_TYPE_STRING;
params[0].buffer = (char*)cov.songTitle.c_str();
auto songTitleLength = cov.songTitle.size();
params[0].length = &songTitleLength;
params[0].is_null = 0;
params[1].buffer_type = MYSQL_TYPE_STRING;
params[1].buffer = (char*)cov.imagePath.c_str();
auto imagePathLength = cov.imagePath.size();
params[1].length = &imagePathLength;
params[1].is_null = 0;
status = mysql_stmt_bind_param(stmt, params);
status = mysql_stmt_execute(stmt);
mysql_stmt_close(stmt);
mysql_close(conn);
std::cout << "saved cover art record" << std::endl;
}
std::vector<model::Cover> database::CoverArtRepository::parseRecords(MYSQL_STMT *stmt)
{
mysql_stmt_store_result(stmt);
auto rowCount = mysql_stmt_num_rows(stmt);
std::cout << "number of results " << rowCount << std::endl;
std::vector<model::Cover> coverArts;
coverArts.reserve(rowCount);
const auto valAmt = 3;
unsigned long len[valAmt];
my_bool nullRes[valAmt];
for (auto status = 0; status == 0; status = mysql_stmt_next_result(stmt)) {
if (mysql_stmt_field_count(stmt) > 0) {
model::Cover coverArt;
auto res = mysql_stmt_result_metadata(stmt);
auto fields = mysql_fetch_fields(res);
auto strLen = 1024;
MYSQL_BIND val[valAmt];
memset(val, 0, sizeof(val));
char songTitle[strLen];
char imagePath[strLen];
val[0].buffer_type = MYSQL_TYPE_LONG;
val[0].buffer = (char*)&coverArt.id;
val[0].length = &len[0];
val[0].is_null = &nullRes[0];
val[1].buffer_type = MYSQL_TYPE_STRING;
val[1].buffer = (char*)songTitle;
val[1].buffer_length = strLen;
val[1].length = &len[1];
val[1].is_null = &nullRes[1];
val[2].buffer_type = MYSQL_TYPE_STRING;
val[2].buffer = (char*)imagePath;
val[2].buffer_length = strLen;
val[2].length = &len[2];
val[2].is_null = &nullRes[2];
status = mysql_stmt_bind_result(stmt, val);
while (true) {
std::cout << "fetching statement result" << std::endl;
status = mysql_stmt_fetch(stmt);
if (status == 1 || status == MYSQL_NO_DATA) {
break;
}
coverArt.songTitle = songTitle;
coverArt.imagePath = imagePath;
coverArts.push_back(std::move(coverArt));
}
}
std::cout << "fetching next result" << std::endl;
}
return coverArts;
}
model::Cover database::CoverArtRepository::parseRecord(MYSQL_RES *results)
{
std::cout << "parsing record" << std::endl;
model::Cover cov;
auto fieldNum = mysql_num_fields(results);
MYSQL_ROW row = mysql_fetch_row(results);
for (auto i = 0; i != fieldNum; ++i) {
switch (i) {
case 0:
cov.id = std::stoi(row[i]);
break;
case 1:
cov.songTitle = row[i];
break;
case 2:
cov.imagePath = row[i];
break;
}
}
std::cout << "done parsing record" << std::endl;
return cov;
}
model::Cover database::CoverArtRepository::parseRecord(MYSQL_STMT *stmt)
{
std::cout << "parsing cover art record" << std::endl;
mysql_stmt_store_result(stmt);
model::Cover cover;
auto status = 0;
auto time = 0;
auto valAmt = 3;
unsigned long len[valAmt];
my_bool nullRes[valAmt];
while (status == 0) {
if (mysql_stmt_field_count(stmt) > 0) {
auto res = mysql_stmt_result_metadata(stmt);
auto fields = mysql_fetch_fields(res);
auto strLen = 1024;
MYSQL_BIND val[valAmt];
memset(val, 0, sizeof(val));
char songTitle[strLen];
char imagePath[strLen];
val[0].buffer_type = MYSQL_TYPE_LONG;
val[0].buffer = (char*)&cover.id;
val[0].length = &len[0];
val[0].is_null = &nullRes[0];
val[1].buffer_type = MYSQL_TYPE_STRING;
val[1].buffer = (char*)&songTitle;
val[1].buffer_length = strLen;
val[1].length = &len[1];
val[1].is_null = &nullRes[1];
val[2].buffer_type = MYSQL_TYPE_STRING;
val[2].buffer = (char*)&imagePath;
val[2].buffer_length = strLen;
val[2].length = &len[2];
val[2].is_null = &nullRes[2];
status = mysql_stmt_bind_result(stmt, val);
mysql_stmt_store_result(stmt);
status = mysql_stmt_fetch(stmt);
cover.songTitle = songTitle;
cover.imagePath = imagePath;
}
status = mysql_stmt_next_result(stmt);
}
std::cout << "done parsing cover art record" << std::endl;
return cover;
}