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#ifndef SIBS_CONF_HPP
#define SIBS_CONF_HPP
#include "Result.hpp"
#include "StringView.hpp"
#include "utils.hpp"
#include "Dependency.hpp"
#include <vector>
#include <cassert>
#include <stdexcept>
namespace sibs
{
class ConfigValue
{
public:
enum class Type
{
NONE,
SINGLE,
LIST
};
ConfigValue() : type(Type::NONE) {}
ConfigValue(StringView value) :
type(Type::SINGLE)
{
values.push_back(value);
}
ConfigValue(const std::vector<StringView> &_values) :
type(Type::LIST),
values(_values)
{
}
bool isSingle() const { return type == Type::SINGLE; }
bool isList() const { return type == Type::LIST; }
StringView asSingle() const
{
assert(isSingle());
return values[0];
}
const std::vector<StringView> asList() const
{
assert(isList());
return values;
}
private:
Type type;
std::vector<StringView> values;
};
class Parser;
class ParserException : public std::runtime_error
{
public:
ParserException(const std::string &errMsg) : runtime_error(errMsg)
{
}
};
class ConfigCallback
{
friend class Parser;
protected:
virtual void processObject(StringView name) = 0;
virtual void processField(StringView name, const ConfigValue &value) = 0;
virtual void finished() = 0;
};
class Config
{
public:
static Result<bool> readFromFile(const char *filepath, const ConfigCallback &callback);
};
class SibsConfig : public ConfigCallback
{
public:
SibsConfig() : finishedProcessing(false) {}
const std::string& getPackageName() const
{
assert(finishedProcessing);
return packageName;
}
const std::vector<Dependency>& getDependencies() const
{
return dependencies;
}
protected:
void processObject(StringView name) override;
void processField(StringView name, const ConfigValue &value) override;
void finished() override
{
finishedProcessing = true;
}
private:
StringView currentObject;
std::string packageName;
std::vector<Dependency> dependencies;
bool finishedProcessing;
};
}
#endif //SIBS_CONF_HPP
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