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//
// lager - library for functional interactive c++ programs
// Copyright (C) 2017 Juan Pedro Bolivar Puente
//
// This file is part of lager.
//
// lager is free software: you can redistribute it and/or modify
// it under the terms of the MIT License, as detailed in the LICENSE
// file located at the root of this source code distribution,
// or here: <https://github.com/arximboldi/lager/blob/master/LICENSE>
//
#include "../counter.hpp"
#include <iostream>
#include <lager/event_loop/manual.hpp>
#include <lager/store.hpp>
void draw(counter::model curr)
{
std::cout << "current value: " << curr.value << '\n';
}
std::optional<counter::action> intent(char event)
{
switch (event) {
case '+':
return counter::increment_action{};
case '-':
return counter::decrement_action{};
case '.':
return counter::reset_action{};
default:
return std::nullopt;
}
}
int main()
{
auto store = lager::make_store<counter::action>(
counter::model{}, lager::with_manual_event_loop{});
watch(store, draw);
auto event = char{};
while (std::cin >> event) {
if (auto act = intent(event))
store.dispatch(*act);
}
}
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