Files
ox/src/nostalgia/studio/lib/configio.hpp
T
2023-02-01 22:43:50 -06:00

94 lines
2.7 KiB
C++

/*
* Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
*/
#pragma once
#include <ox/fs/fs.hpp>
#include <ox/model/typenamecatcher.hpp>
#include <ox/oc/oc.hpp>
#include <ox/std/buffer.hpp>
#include <ox/std/defines.hpp>
#include <ox/std/fmt.hpp>
#include <ox/std/trace.hpp>
#include <ox/std/string.hpp>
#include <nostalgia/core/context.hpp>
namespace nostalgia::studio {
[[nodiscard]]
ox::String configPath(const core::Context *ctx) noexcept;
template<typename T>
ox::Result<T> readConfig(core::Context *ctx, ox::CRStringView name) noexcept {
oxAssert(ox_strcmp(name, ""), "Config type has no TypeName");
const auto path = ox::sfmt("/{}.json", name);
ox::PassThroughFS fs(configPath(ctx));
const auto [buff, err] = fs.read(path);
if (err) {
oxErrf("Could not read config file: {}\n", toStr(err));
return err;
}
return ox::readOC<T>(buff);
}
template<typename T>
ox::Result<T> readConfig(core::Context *ctx) noexcept {
constexpr auto TypeName = ox::requireModelTypeName<T>();
return readConfig<T>(ctx, TypeName);
}
template<typename T>
ox::Error writeConfig(core::Context *ctx, ox::CRStringView name, T *data) noexcept {
oxAssert(ox_strcmp(name, ""), "Config type has no TypeName");
const auto path = ox::sfmt("/{}.json", name);
ox::PassThroughFS fs(configPath(ctx));
if (const auto err = fs.mkdir("/", true)) {
oxErrf("Could not create config directory: {}\n", toStr(err));
return err;
}
oxRequireM(buff, ox::writeOC(data));
buff.back().value = '\n';
if (const auto err = fs.write(path, buff.data(), buff.size())) {
oxErrf("Could not read config file: {}\n", toStr(err));
return OxError(2, "Could not read config file");
}
return OxError(0);
}
template<typename T>
ox::Error writeConfig(core::Context *ctx, T *data) noexcept {
constexpr auto TypeName = ox::requireModelTypeName<T>();
return writeConfig(ctx, TypeName, data);
}
template<typename T, typename Func>
void openConfig(core::Context *ctx, const auto &name, Func f) noexcept {
oxAssert(name != "", "Config type has no TypeName");
const auto c = readConfig<T>(ctx, name);
f(&c.value);
}
template<typename T, typename Func>
void openConfig(core::Context *ctx, Func f) noexcept {
constexpr auto TypeName = ox::requireModelTypeName<T>();
openConfig<T>(ctx, TypeName, f);
}
template<typename T, typename Func>
void editConfig(core::Context *ctx, const auto &name, Func f) noexcept {
oxAssert(ox_strcmp(name, ""), "Config type has no TypeName");
auto c = readConfig<T>(ctx, name);
f(&c.value);
oxLogError(writeConfig(ctx, name, &c.value));
}
template<typename T, typename Func>
void editConfig(core::Context *ctx, Func f) noexcept {
constexpr auto TypeName = ox::requireModelTypeName<T>();
editConfig<T>(ctx, TypeName, f);
}
}