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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 "app.hpp"
#include <iostream>
namespace todo {
app_result update(app s, app_action a)
{
return lager::match(std::move(a))(
[&](save_action&& a) -> app_result {
s.path = a.file.replace_extension("todo");
auto eff = [m = s.doc, f = s.path](auto&& ctx) {
try {
std::cout << "saving file: " << f << std::endl;
save(f, m);
} catch (std::exception const& err) {
std::cerr << "error saving file: " << err.what()
<< std::endl;
lager::get<logger>(ctx).error("Could not save file: " +
f.string());
}
};
return {std::move(s), eff};
},
[&](load_action&& a) -> app_result {
auto eff = [f = std::move(a.file)](auto&& ctx) {
std::cout << "loading file: " << f << std::endl;
try {
auto m = load(f);
ctx.dispatch(load_result_action{f, std::move(m)});
} catch (std::exception const& err) {
std::cerr << "error loading file: " << err.what()
<< std::endl;
lager::get<logger>(ctx).error("Could not load file: " +
f.string());
}
};
return {std::move(s), eff};
},
[&](load_result_action&& a) -> app_result {
s.doc = std::move(a.doc);
s.path = std::move(a.file);
return std::move(s);
},
[&](model_action&& a) -> app_result {
s.doc = update(std::move(s.doc), std::move(a));
return std::move(s);
});
}
} // namespace todo
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