#pragma once
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#include <chrono>
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#include <iostream>
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#include <queue>
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#include <string>
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#include <vector>
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enum OrderSideEnum { Buy, Sell };
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enum ProductTypeEnum { TEST, FUTURE, SPREAD, CALL, PUT };
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struct Order {
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double price;
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OrderSideEnum side;
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int remaining_volume;
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int filled_volume;
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std::chrono::nanoseconds timestamp;
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std::string id;
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Order(double price, OrderSideEnum side, int volume,
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std::chrono::nanoseconds timestamp, std::string id);
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};
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struct Level {
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double price;
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int volume;
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OrderSideEnum side;
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std::chrono::nanoseconds timestamp;
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std::string id;
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Level(Order &order);
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};
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bool operator>(const Level &a, const Level &b);
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bool operator<(const Level &a, const Level &b);
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bool operator>=(const Level &a, const Level &b);
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bool operator<=(const Level &a, const Level &b);
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bool operator==(const Level &a, const Level &b);
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template <class T>
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struct Side : public std::priority_queue<Level, std::vector<Level>, T> {
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public:
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void deleteLevel(std::string orderId) {
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for (auto i = this->c.begin(); i != this->c.end();) {
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if (*i.id == orderId) {
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this->c.erase(i);
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std::make_heap(this->c.begin(), this->c.end(), this->comp);
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}
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}
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}
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void topRemoveVolume(int volume) { this->c[0].volume -= volume; }
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void printTop(int num = 5) {
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std::sort(this->c.begin(), this->c.end(), this->comp);
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for (int i = 0; i < num && i < this->size(); i++) {
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std::cout << "Price: " << this->c[i].price
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<< ", volume: " << this->c[i].volume
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<< ", time: " << this->c[i].timestamp.count()
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<< ", id: " << this->c[i].id << std::endl;
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}
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std::make_heap(this->c.begin(), this->c.end(), this->comp);
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}
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};
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using AskSide = Side<std::greater<Level>>;
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using BidSide = Side<std::less<Level>>;
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struct Book {
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BidSide bidSide;
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AskSide askSide;
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ProductTypeEnum productType;
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std::string product;
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std::string stationId;
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std::string unit;
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std::chrono::nanoseconds expiry;
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double aggFee;
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double pasFee;
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double broFee;
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Book();
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Book(ProductTypeEnum productType, std::string product, std::string stationId,
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std::string unit, std::chrono::nanoseconds expiry, double aggFee,
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double pasFee, double broFee);
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void ask(Order &order);
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void bid(Order &order);
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void printBook();
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};
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Book testBook(int orders = 10, bool printBook = true);
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