/*
 * ImportStatement.cpp
 *
 *  Created on: Jan 7, 2013
 *      Author: att
 */

#include "ImportStatement.h"

ImportStatement::ImportStatement(std::string name_of_module, ContextManager * context_manager) :
name_of_module(name_of_module), context_manager(context_manager){
	//Hrum hrum magic
	this->type = "ImportStatement";
	prepare_defaults();
	std::ifstream module_file;
	std::string module_source_text = "";
	std::string line;
	Lexer lexer;
	vector<Token> tokens;
	Parser parser(context_manager);
	correctly_imported = false;
	for(auto path : prepare_paths(name_of_module))
	{
		if(correctly_imported)  break;

		std::cout << "Path was: " + path << std::endl;
		module_file.open(path.c_str());
		if (module_file.is_open())
		{
			while ( module_file.good() )
			{
				getline (module_file, line);
				module_source_text +=  line;
				tokens = lexer.parse_line(line);
				parser.add_tokens(tokens);
			}
			module_file.close();
			parser.interpret();
			import_body = parser.tree.root;

			children.push_back(import_body);
			correctly_imported = true;
		}
	}

	if(correctly_imported)
		std::cout << "Import complete!" << std::endl;
	else
		std::cout << "Invalid import!" << std::endl;


	//std::cout << "Importing file: " << module_source_text << std::endl;

	//std::cout << "Tokens from file: " << parser.show_tokens() << std::endl;
	//std::cout << "Errors from file: " << parser.error_message << std::endl;

}

void ImportStatement::prepare_defaults()
{
	DEFAULT_LIB_PATHS.push_back("/home/att/old/development/sencha-lang/Sencha-lang/libs/");
}

std::vector<std::string> ImportStatement::prepare_paths(std::string name_of_module)
{
	std::vector<std::string> paths;
	if(name_of_module.substr(name_of_module.size() -3,name_of_module.size()) == ".se")
	{
		std::cout << name_of_module.substr(name_of_module.size() -3,name_of_module.size() ) << std::endl;
		paths.push_back(name_of_module);
	}
	else
	{
		for(auto path : DEFAULT_LIB_PATHS)
		{
			paths.push_back(path + name_of_module + ".se");
		}
	}
	return paths;
}

std::string ImportStatement::strip_string(std::string text)
{
	if(text.size() > 2)
	{
		std::string result;
			for(unsigned int i = 1; i < text.size() - 1; i++)
			{
				result += text[i];
			}
			return result;
	}
	else
		return string("");
}

ImportStatement::~ImportStatement() {
	// TODO Auto-generated destructor stub
}

SenchaObject ImportStatement::execute()
{
	if(correctly_imported)
		return import_body->execute();
	else
		return SenchaObject();
}