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#include "Book.h"
#include<iostream>
void Book::addRating(unsigned short r, const string& name) {
if (r > 10)
return;
int raterIndex = -1;
for (size_t i = 0; i < ratings.getSize(); i++) {
if (name == ratings[i].getFirst()) {
raterIndex = i;
break;
}
}
if (raterIndex != -1)
ratings[raterIndex].setSecond(r);
else {
Pair<string, unsigned> toPush(name, r);
ratings.pushBack(std::move(toPush));
}
}
void Book::print() const {
std::cout << title << " by: " << author << std::endl;
}
Book::Book(const string& pAuthor, const string& pTitle) {
author = pAuthor;
title = pTitle;
}
void Book::writeToFile(std::ofstream& outFile) const {
writeString(outFile, author); // Author
writeString(outFile, title); // Title
// Write pages to file
int len = data.getSize();
outFile.write((const char*)&len, sizeof(len));
for (size_t i = 0; i < len; i++)
data[i].writeToFile(outFile);
// Write comments to file:
int commentsLen = comments.getSize();
outFile.write((const char*)&commentsLen, sizeof(commentsLen));
for (size_t i = 0; i < commentsLen; i++)
writeCommentsToFile(outFile, comments[i]);
// Write rates to file:
int ratesCount = this->ratings.getSize();
outFile.write((const char*)&ratesCount, sizeof(ratesCount));
for (size_t i = 0; i < ratesCount; i++)
writeRatesToFile(outFile, ratings[i]);
}
void Book::readFromFile(std::ifstream& inFile) {
author = readString(inFile); // Author
title = readString(inFile); // Title
// Read pages:
int len = 0;
inFile.read((char*)&len, sizeof(len));
for (size_t i = 0; i < len; i++) {
data.pushBack(Page());
data[i].readFromFile(inFile);
}
// Read comments
int commentsLen = 0;
inFile.read((char*)&commentsLen, sizeof(commentsLen));
for (size_t i = 0; i < commentsLen; i++) {
Pair<string, string> toInsert = readCommentsFromFile(inFile);
comments.pushBack(std::move(toInsert));
}
// Read rates from file
int ratesCount = 0;
inFile.read((char*)&ratesCount, sizeof(ratesCount));
for (size_t i = 0; i < ratesCount; i++) {
Pair<string, unsigned> toPush = readRatesFromFile(inFile);
ratings.pushBack(std::move(toPush));
}
}
double Book::getAvarageRating() const {
double sum = 0;
for (size_t i = 0; i < ratings.getSize(); i++)
sum += ratings[i].getSecond();
return sum / (double)(ratings.getSize());
}
void Book::write(unsigned pagesCount) {
unsigned short lines = 0;
for (int i = 0; i < pagesCount; i++) {
std::cout << "Enter lines in page " << i + 1 << ": ";
std::cin >> lines;
std::cin.ignore();
Page toInsert;
toInsert.write(lines);
data.pushBack(std::move(toInsert));
}
}
void Book::displayBook() const {
bool reading = true;
bool displayMenu = true;
unsigned pageNumber = 0;
char cmd = '\0';
unsigned pageIndex = 0;
while (reading) {
system("cls");
if (displayMenu)
displayHelpMenu();
data[pageIndex].displayPage();
std::cin.get(cmd);
switch (cmd) {
case 'n':
if (pageIndex < data.getSize() - 1)
pageIndex++;
break;
case 'p':
if (pageIndex > 0)
pageIndex--;
break;
case 'h':
displayMenu = !displayMenu;
break;
case 'q':
reading = false;
break;
case '@':
std::cin >> pageNumber;
if (pageNumber >= 1 && pageNumber < data.getSize() + 1)
pageIndex = pageNumber - 1;
break;
default:
break;
}
}
system("cls");
}
void Book::showComments() const {
for (size_t i = 0; i < comments.getSize(); i++)
std::cout << comments[i].getFirst() << " wrote: " << comments[i].getSecond() << std::endl;
}
void Book::showRates() const {
for (size_t i = 0; i < ratings.getSize(); i++)
std::cout << ratings[i].getFirst() << ": " << ratings[i].getSecond() << " start" << std::endl;
std::cout << std::endl;
std::cout << "Avarage rate: " << getAvarageRating() << std::endl;
}
void Book::displayHelpMenu() const {
std::cout << "Entered reader mode." << std::endl
<< "Press n for next, p for prev." << std::endl <<
"Press @ + <number> to go to that page" << std::endl <<
"Press h to hide or show this menu or q to exit" << std::endl;
}
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