/*
 * Ground REPL (shows when ground is ran without any arguments)
 * Copyright (C) 2026 DiamondNether90
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include "interpreter.h"
#include "include/estr.h"
#include "parser.h"
#define BUFFER_SIZE 1024

int repl() {
    printf("Ground REPL\n");
    printf("Copyright (C) DiamondNether90 2026\n");
    printf("Distributed under the GNU GPL-3.0 license; type \"license\" for more info\n");
    char input[BUFFER_SIZE];
    
    GroundVariable* variables = NULL;
    GroundLabel* labels = NULL;

    GroundScope scope;
    scope.variables = &variables;
    scope.labels = &labels;
    scope.isMainScope = true;
    while (true) {
        Estr programString = CREATE_ESTR("");
        *scope.labels = NULL;
        
        // Get program
        printf(">>> ");
        while (true) {
            fgets(input, BUFFER_SIZE, stdin);
            if (strcmp(input, "\n") == 0) {
                break;
            }
            APPEND_ESTR(programString, input);
            printf("...");
        }
        
        // Interpret program
        GroundProgram program = createGroundProgram();
        program = parseFile(programString.str);
        interpretGroundProgram(&program, &scope);
        freeGroundProgram(&program);
        
        DESTROY_ESTR(programString);
    }
}