import io:*
import grammer:*
import parser:*
import lexer:*
import string:*
import util:*
import symbol:*
import tree:*

fun main():int {

    var a = load_grammer(read_file(string("../krakenGrammer.kgm")))
    /*var a = load_grammer(read_file(string("grammer.kgm")))*/
    /*var a = load_grammer(read_file(string("grammer2.kgm")))*/
    /*var a = load_grammer(read_file(string("grammer3.kgm")))*/
    println(a.to_string())
    var doFirstSet = fun() {
        a.calculate_first_set()
        println("///////////////////START FIRST SET/////////////")
        println("//TERMINALS//")
        a.terminals.for_each( fun(terminal: util::pair<symbol::symbol, regex::regex>) {
            var set_str = string::string("{ ")
            a.first_set_map[terminal.first].for_each( fun(sym: symbol::symbol) {
                set_str += sym.to_string() + ", "
            })
            set_str += "}"
            print(terminal.first.to_string() + " first: " + set_str + "\n")
        })
        println("//NON TERMINALS//")
        a.non_terminals.for_each( fun(non_terminal: symbol::symbol) {
            var set_str = string::string("{ ")
            a.first_set_map[non_terminal].for_each( fun(sym: symbol::symbol) {
                set_str += sym.to_string() + ", "
            })
            set_str += "}"
            print(non_terminal.to_string() + " first: " + set_str + "\n")
            println()
        })
        println("///////////////////END FIRST SET/////////////")
    }
    doFirstSet()

    var lex = lexer(a.terminals)

   /*lex.set_input(read_file(string("test_grammer.krak")))*/
    /*lex.set_input(string("ccdahas spacedhas*/
/*returndaaaaaaaaaaaaaa"))*/
    //lex.set_input(string("hibyed"))
    println("woo lexing:")
    /*range(8).for_each(fun(i: int) { println(lex.next().to_string()); } )*/
    /*range(80).for_each(fun(i: int) { println(lex.next().to_string()); } )*/
    println(a.to_string())
    a.calculate_state_automaton()
    var parse.construct(a): parser
    var result = parse.parse_input(read_file(string("to_parse.krak")), string("fun name"))
    /*var result = parse.parse_input(string("inport a;"), string("fun name"))*/
    /*var result = parse.parse_input(string("fun main():int { return 0; }"), string("fun name"))*/
    /*var result = parse.parse_input(string("ad"), string("fun name"))*/
    /*var result = parse.parse_input(string("hibyed"), string("fun name"))*/
    /*var result = parse.parse_input(string("hmmhmmend"), string("fun name"))*/
    /*var result = parse.parse_input(string("hid"), string("fun name"))*/
    println("the tree")
    println(syntax_tree_to_dot(result))
    write_file(string("syntax_tree.dot"), syntax_tree_to_dot(result))
    /*var parse.construct(): parser*/
    return 0
}