//
// Keszitette: Toldi Balázs Ádám
// Datum: 2020. 03. 15.
//

#include "Blockchain.h"

int Blockchain::difficulty = 2;
int Blockchain::blockReward = 50;


int Blockchain::getBlockReward() {
    return blockReward;
}

int Blockchain::getDifficulty() {
    return difficulty;
}

const std::vector<Block> &Blockchain::getBlockList() const {
    return blockList;
}

bool Blockchain::verifyBlocks() const{
    std::string prev_hash = blockList.rbegin()->getPerviousHash();
    for (auto it = blockList.rbegin()+1;it < blockList.rend();++it) {
        if(it->getHash() != prev_hash)
            return false;
    }
    return true;
}

bool Blockchain::addBlock(Block &b) {
    blockList.push_back(b);
    return verifyBlocks();
}

Block Blockchain::operator[](size_t id) {
    if(id >= blockList.size())
        throw std::out_of_range("Out of range");
    return blockList[id];
}

bool Blockchain::operator<(Blockchain &b) {
    return blockList.size() < b.blockList.size();
}

size_t Blockchain::getHeight() const {
    return blockList.size();
}

bool Blockchain::operator>(Blockchain &b) {
    return blockList.size() > b.getHeight();
}

Blockchain::Blockchain() {

}

Blockchain::Blockchain(const Blockchain &b) {
    for(Block bl : b.blockList)
        blockList.push_back(bl);
}