#include "automata.h"

namespace L87 {
	Automata::Error::Error() {
		name = "unknown"; // TBD  反制魔法字符串
		details = "undefined error"; // TBD  反制魔法字符串
	}

	Automata::Error::Error(std::string& _name) {
		InnerMapIterator it = Inner_Error_Table.find(_name);
		if (it != Inner_Error_Table.end()) {
			name = it->first.c_str();
			details = it->second.c_str();
		}
		else {
			name = "unknown";
			details = "undefined error";
		}
	}

	Automata::Error::InnerMap Automata::Error::Inner_Error_Table;
}

namespace L87 {
	Automata::Result::Result(State* _state) : state(_state) {}
}

namespace L87 {
	Automata::Automata(StateDiagram& _diagram) : diagram(_diagram) {}
	Automata::Result Automata::Run(std::string _input) {
		State* current = diagram.initial;
		Result result(current);
		result.value = current->name();
		for (auto& item : _input) {
			result.state = current = current->next(item);
			result.value += " -> ";
			result.value += current->name();
			if (current->bad()) {
				// TBD
				break;
			}
			if (current->done()) {
				// TBD
				break;
			}
		}
		return result; // 拷贝构造
	}
}