327 lines
9.3 KiB
C++
327 lines
9.3 KiB
C++
#include "database/CoverArtRepository.h"
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#include <iostream>
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#include <memory>
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#include <sstream>
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#include <string>
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#include <cstring>
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namespace database {
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CoverArtRepository::CoverArtRepository(const model::BinaryPath& bConf) :
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BaseRepository(bConf) { }
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std::vector<model::Cover> CoverArtRepository::retrieveRecords() {
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auto conn = setupMysqlConnection();
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auto stmt = mysql_stmt_init(conn);
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const std::string query = "SELECT * FROM CoverArt";
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mysql_stmt_prepare(stmt, query.c_str(), query.size());
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mysql_stmt_execute(stmt);
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auto coverArts = parseRecords(stmt);
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mysql_stmt_close(stmt);
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mysql_close(conn);
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return coverArts;
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}
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model::Cover CoverArtRepository::retrieveRecord(model::Cover& cov,
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type::CoverFilter filter = type::CoverFilter::id) {
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std::stringstream qry;
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auto conn = setupMysqlConnection();
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auto stmt = mysql_stmt_init(conn);
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qry << "SELECT * FROM CoverArt WHERE ";
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MYSQL_BIND params[1];
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memset(params, 0, sizeof(params));
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auto songTitleLength = cov.songTitle.size();
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switch (filter) {
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case type::CoverFilter::id:
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qry << "CoverArtId = ?";
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params[0].buffer_type = MYSQL_TYPE_LONG;
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params[0].buffer = (char*)&cov.id;
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params[0].length = 0;
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params[0].is_null = 0;
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break;
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case type::CoverFilter::songTitle:
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qry << "SongTitle = ?";
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params[0].buffer_type = MYSQL_TYPE_STRING;
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params[0].buffer = (char*)cov.songTitle.c_str();
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params[0].length = &songTitleLength;
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params[0].is_null = 0;
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break;
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default:
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break;
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}
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qry << " LIMIT 1";
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const std::string query = qry.str();
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auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
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status = mysql_stmt_bind_param(stmt, params);
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status = mysql_stmt_execute(stmt);
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auto covDb = parseRecord(stmt);
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mysql_stmt_close(stmt);
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mysql_close(conn);
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std::cout << "retrieved cover art record\n";
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return covDb;
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}
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bool CoverArtRepository::doesCoverArtExist(const model::Cover& cover,
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type::CoverFilter filter) {
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auto conn = setupMysqlConnection();
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auto stmt = mysql_stmt_init(conn);
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MYSQL_BIND params[1];
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memset(params, 0, sizeof(params));
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std::stringstream qry;
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qry << "SELECT * FROM CoverArt WHERE ";
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auto titleLength = cover.songTitle.size();
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switch (filter) {
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case type::CoverFilter::id:
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qry << "CoverArtId = ?";
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params[0].buffer_type = MYSQL_TYPE_LONG;
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params[0].buffer = (char*)&cover.id;
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params[0].length = 0;
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params[0].is_null = 0;
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break;
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case type::CoverFilter::songTitle:
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qry << "SongTitle = ?";
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params[0].buffer_type = MYSQL_TYPE_STRING;
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params[0].buffer = (char*)cover.songTitle.c_str();
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params[0].length = &titleLength;
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params[0].is_null = 0;
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break;
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default:
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break;
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}
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qry << " LIMIT 1";
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const auto query = qry.str();
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auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
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status = mysql_stmt_bind_param(stmt, params);
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status = mysql_stmt_execute(stmt);
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std::cout << "the query has been performed\n";
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mysql_stmt_store_result(stmt);
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auto rowCount = mysql_stmt_num_rows(stmt);
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mysql_stmt_close(stmt);
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mysql_close(conn);
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return (rowCount > 0) ? true : false;
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}
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void CoverArtRepository::deleteRecord(const model::Cover& cov,
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type::CoverFilter filter) {
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auto conn = setupMysqlConnection();
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auto stmt = mysql_stmt_init(conn);
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std::cout << "delete CoverArt record\n";
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std::stringstream qry;
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qry << "DELETE FROM CoverArt WHERE ";
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MYSQL_BIND params[1];
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std::memset(params, 0, sizeof(params));
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switch (filter) {
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case type::CoverFilter::id:
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qry << "CoverArtId = ?";
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params[0].buffer_type = MYSQL_TYPE_LONG;
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params[0].buffer = (char*)&cov.id;
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params[0].length = 0;
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params[0].is_null = 0;
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break;
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default:
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break;
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}
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const auto query = qry.str();
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auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
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status = mysql_stmt_bind_param(stmt, params);
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status = mysql_stmt_execute(stmt);
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mysql_stmt_close(stmt);
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mysql_close(conn);
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std::cout << "deleted CoverArt record\n";
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}
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void CoverArtRepository::saveRecord(const model::Cover& cov) {
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std::cout << "saving cover art record";
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auto conn = setupMysqlConnection();
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auto stmt = mysql_stmt_init(conn);
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MYSQL_BIND params[2];
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memset(params, 0, sizeof(params));
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my_bool isNull;
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const std::string query = "INSERT INTO CoverArt(SongTitle, ImagePath) VALUES(?, ?)";
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auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
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params[0].buffer_type = MYSQL_TYPE_STRING;
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params[0].buffer = (char*)cov.songTitle.c_str();
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auto songTitleLength = cov.songTitle.size();
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params[0].length = &songTitleLength;
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params[0].is_null = 0;
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params[1].buffer_type = MYSQL_TYPE_STRING;
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params[1].buffer = (char*)cov.imagePath.c_str();
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auto imagePathLength = cov.imagePath.size();
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params[1].length = &imagePathLength;
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params[1].is_null = 0;
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status = mysql_stmt_bind_param(stmt, params);
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status = mysql_stmt_execute(stmt);
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mysql_stmt_close(stmt);
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mysql_close(conn);
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std::cout << "saved cover art record\n";
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}
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void CoverArtRepository::updateRecord(const model::Cover& cover) {
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std::stringstream qry;
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auto conn = setupMysqlConnection();
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auto stmt = mysql_stmt_init(conn);
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qry << "UPDATE CoverArt SET ";
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qry << "SongTitle = ?, ";
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qry << "ImagePath = ? ";
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qry << "WHERE CoverArtId = ?";
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MYSQL_BIND params[3];
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memset(params, 0, sizeof(params));
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auto songTitleLength = cover.songTitle.size();
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auto imagePathLength = cover.imagePath.size();
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params[0].buffer_type = MYSQL_TYPE_STRING;
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params[0].buffer = (char*)cover.songTitle.c_str();
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params[0].length = &songTitleLength;
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params[0].is_null = 0;
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params[1].buffer_type = MYSQL_TYPE_STRING;
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params[1].buffer = (char*)cover.imagePath.c_str();
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params[1].length = &imagePathLength;
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params[1].is_null = 0;
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params[2].buffer_type = MYSQL_TYPE_LONG;
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params[2].buffer = (char*)&cover.id;
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params[2].length = 0;
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params[2].is_null = 0;
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const std::string query = qry.str();
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auto status = mysql_stmt_prepare(stmt, query.c_str(), query.size());
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status = mysql_stmt_bind_param(stmt, params);
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status = mysql_stmt_execute(stmt);
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mysql_stmt_close(stmt);
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mysql_close(conn);
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std::cout << "updated cover art record\n";
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}
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std::vector<model::Cover> CoverArtRepository::parseRecords(MYSQL_STMT *stmt) {
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mysql_stmt_store_result(stmt);
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const auto rowCount = mysql_stmt_num_rows(stmt);
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std::cout << "number of results " << rowCount << "\n";
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std::vector<model::Cover> coverArts;
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coverArts.reserve(rowCount);
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constexpr auto valAmt = 3;
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for (auto status = 0; status == 0; status = mysql_stmt_next_result(stmt)) {
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if (mysql_stmt_field_count(stmt) > 0) {
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model::Cover cover;
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auto metaBuff = metadataBuffer();
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auto bindedValues = valueBind(cover, metaBuff);
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status = mysql_stmt_bind_result(stmt, bindedValues.get());
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std::cout << "fetching statement result\n";
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status = mysql_stmt_fetch(stmt);
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if (status == 1 || status == MYSQL_NO_DATA) break;
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cover.songTitle = std::get<0>(metaBuff);
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cover.imagePath = std::get<1>(metaBuff);
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coverArts.push_back(cover);
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}
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std::cout << "fetching next result\n";
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}
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return coverArts;
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}
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std::shared_ptr<MYSQL_BIND> CoverArtRepository::valueBind(model::Cover& cover,
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std::tuple<char*, char*>& metadata) {
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constexpr auto valueCount = 3;
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constexpr auto wordLen = 1024;
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std::shared_ptr<MYSQL_BIND> values((MYSQL_BIND*)
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std::calloc(valueCount, sizeof(MYSQL_BIND)));
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values.get()[0].buffer_type = MYSQL_TYPE_LONG;
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values.get()[0].buffer = reinterpret_cast<char*>(&cover.id);
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values.get()[1].buffer_type = MYSQL_TYPE_STRING;
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values.get()[1].buffer = reinterpret_cast<char*>(std::get<0>(metadata));
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values.get()[1].buffer_length = wordLen;
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values.get()[2].buffer_type = MYSQL_TYPE_STRING;
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values.get()[2].buffer = reinterpret_cast<char*>(std::get<1>(metadata));
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values.get()[2].buffer_length = wordLen;
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return values;
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}
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std::tuple<char*, char*> CoverArtRepository::metadataBuffer() {
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constexpr auto wordLen = 1024;
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char songTitle[wordLen];
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char imagePath[wordLen];
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return std::make_pair(songTitle, imagePath);
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}
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model::Cover CoverArtRepository::parseRecord(MYSQL_STMT *stmt) {
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std::cout << "parsing cover art record\n";
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mysql_stmt_store_result(stmt);
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model::Cover cover;
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auto metaBuff = metadataBuffer();
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auto bindedValues = valueBind(cover, metaBuff);
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auto status = mysql_stmt_bind_result(stmt, bindedValues.get());
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status = mysql_stmt_fetch(stmt);
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cover.songTitle = std::get<0>(metaBuff);
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cover.imagePath = std::get<1>(metaBuff);
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std::cout << "done parsing cover art record\n";
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return cover;
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}
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}
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