#include <pslang/parser/parser.hpp>
#include <pslang/parser/context.hpp>
#include <pslang/parser/indented_statement.hpp>
#include <pslang/ast/location.hpp>
#include "gen_parser.hpp"
#include "gen_lexer.hpp"

namespace pslang::parser
{

	ast::statement_ptr parse(std::string_view path)
	{
		yyin = fopen(path.data(), "r");
		if (!yyin)
			throw std::system_error(std::make_error_code(static_cast<std::errc>(errno)));

		ast::location location{.begin = {.filename = path}, .end = {.filename = path}};
		indented_statement_list statements;
		context ctx{location, statements};

		bison::parser parser(ctx);

		parser.parse();

		fclose(yyin);

		// Add a fake AST node for the entry point
		return std::make_shared<ast::statement>(ast::function_definition{
			{
				"[entry point]",
				{},
				std::make_shared<ast::type>(types::unit_type{}),
				{},
			},
			finalize(std::move(statements)),
			{},
		});
	}

}