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// Copyright (c) 1997,2002 by Jim Lynch.
// Copyright (c) 2010-2012,2026 by Philipp Schafft.
// This software comes with NO WARRANTY WHATSOEVER.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 dated June, 1991, or, at your
// option, any LATER version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this software; see the file COPYING. If not, write to
// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <iostream>
#include "sqlite-stuff.h"
static bool WriteInsertOnly(sqlite3 *db, const std::string &theKey, const std::string &theValue) {
sqlite3_stmt *stmt;
if (sqlite3_prepare_v2(db, "INSERT INTO animals (key, value) VALUES (?, ?)", -1, &stmt, NULL) != SQLITE_OK)
return false;
if (sqlite3_bind_text(stmt, 1, theKey.c_str(), -1, SQLITE_STATIC) != SQLITE_OK) {
sqlite3_finalize(stmt);
return false;
}
if (sqlite3_bind_text(stmt, 2, theValue.c_str(), -1, SQLITE_STATIC) != SQLITE_OK) {
sqlite3_finalize(stmt);
return false;
}
if (sqlite3_step(stmt) != SQLITE_DONE) {
sqlite3_finalize(stmt);
return false;
}
sqlite3_finalize(stmt);
return true;
}
bool Write(sqlite3 *db, const std::string &theKey, const std::string &theValue) {
sqlite3_stmt *stmt;
if (sqlite3_prepare_v2(db, "DELETE FROM animals WHERE key = ?", -1, &stmt, NULL) != SQLITE_OK)
return false;
if (sqlite3_bind_text(stmt, 1, theKey.c_str(), -1, SQLITE_STATIC) != SQLITE_OK) {
sqlite3_finalize(stmt);
return false;
}
if (sqlite3_step(stmt) != SQLITE_DONE) {
sqlite3_finalize(stmt);
return false;
}
sqlite3_finalize(stmt);
return WriteInsertOnly(db, theKey, theValue);
}
bool Read(sqlite3 *db, const std::string &theKey, std::string &theValue) {
sqlite3_stmt *stmt;
if (sqlite3_prepare_v2(db, "SELECT value FROM animals WHERE key = ?", -1, &stmt, NULL) != SQLITE_OK)
return false;
if (sqlite3_bind_text(stmt, 1, theKey.c_str(), -1, SQLITE_STATIC) != SQLITE_OK) {
sqlite3_finalize(stmt);
return false;
}
if (sqlite3_step(stmt) != SQLITE_ROW) {
sqlite3_finalize(stmt);
return false;
}
theValue = (const char*)sqlite3_column_text(stmt, 0);
sqlite3_finalize(stmt);
return true;
}
sqlite3 * OpenFile(std::string dbfile) {
sqlite3_stmt *stmt;
sqlite3 *ret;
if (!(dbfile.ends_with(".sqlite") || dbfile.ends_with(".sqlite3"))) {
dbfile += ".sqlite3";
}
if (sqlite3_open(dbfile.c_str(), &ret) != SQLITE_OK) {
std::cerr << "Error: Opening " << dbfile << " failed" << std::endl;
exit(1);
}
if (sqlite3_prepare_v2(ret, "CREATE TABLE IF NOT EXISTS animals (key VARCHAR(255) NOT NULL PRIMARY KEY, value VARCHAR(255) NOT NULL)", -1, &stmt, NULL) != SQLITE_OK) {
sqlite3_finalize(stmt);
std::cerr << "Error: Writing " << dbfile << std::endl;
exit(1);
}
if (sqlite3_step(stmt) != SQLITE_DONE) {
sqlite3_finalize(stmt);
std::cerr << "Error: Writing " << dbfile << std::endl;
exit(1);
}
sqlite3_finalize(stmt);
WriteInsertOnly(ret, "last", "0"); // insert default value.
return ret;
}
void CloseFile(sqlite3 *db) {
sqlite3_close(db);
}
void SetLast(sqlite3 *db, const std::string &newKey) {
Write(db, "last", newKey);
}
std::string GetLast(sqlite3 *db) {
std::string result;
Read(db, "last", result);
return result;
}
void SetDbType(sqlite3 *db, const std::string &newType, bool plural) {
Write(db, plural ? "dbtype_plural" : "dbtype_singular", newType);
}
std::string GetDbType(sqlite3 *db, bool plural) {
std::string result;
bool rdOK = Read(db, plural ? "dbtype_plural" : "dbtype_singular", result);
// Test if we got something or use defaults:
if ( !rdOK || result.length() == 0 ) {
if (plural) {
result = GetDbType(db, false);
result += "s"; // add plural 's'
} else {
return "animal";
}
}
return result;
}
bool IsAnimal(sqlite3 *db, const std::string &theKey) {
std::string theValue;
Read(db, theKey, theValue);
return theValue[0] == 'a';
}
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