/* main.c */
/* This file is part of the Morris program */
/* Copyright (C) 2020 Scott C. MacCallum */
/* scm@sdf.org */

/* This program is free software: you can redistribute it and/or modify it */
/* under the terms of the GNU Affero 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 Affero General Public /*
/* License for more details. */

/* You should have received a copy of the GNU Affero General Public License /*
/* along with this program.  If not, see <http://www.gnu.org/licenses/>. */

#include <stdio.h>
#include <string.h>
#include <peekpoke.h>

void display(void)
{
  int Memory_Address_1 = 53280;
  int Memory_Address_2 = 53281;
  int Memory_Address_3 = 646;
  int Frame_Color = 0;
  int Screen_Color = 0;
  int Text_Color = 12;

  /* Make all of the screen black and the text grey */

  POKE(Memory_Address_1, Frame_Color);
  POKE(Memory_Address_2, Screen_Color);
  POKE(Memory_Address_3, Text_Color);
}

void conversation(void)
{
  char Clear_Screen = 147;
  char Bot_Name[] = "Morris";
  char Answer[4];
  char Human_Name[10];

  int Count;
  printf("%c", Clear_Screen);

  printf("[ ");
  printf("%s", Bot_Name);
  printf(" ]");
  printf(" Hi, have we met?\n\n");
  printf("[ ");
  printf("Unknown");
  printf(" ] ");

  fgets(Answer, sizeof(Answer), stdin);

  /* Replace newline in answer with a null zero */

  for (Count = 0; Count < strlen(Answer); Count++) {
    if (Human_Name[Count] == '\n')
      Human_Name[Count] = '\0';
  }

  /* Reject newline input as an answer */

  if (strcmp(Answer, "\n") == 0)
    conversation();

  if (strcmp(Answer, "yes") == 0) {
    printf("\n\n[ ");
    printf("%s", Bot_Name);
    printf(" ] ");
    printf("I don't remember you.\n");
  }

  if (strcmp(Answer, "YES") == 0) {
    printf("\n\n[ ");
    printf("%s", Bot_Name);
    printf(" ] ");
    printf("You don't need to shout.\n");
  }

  printf("\n[ ");
  printf("%s", Bot_Name);
  printf(" ]");
  printf(" What's your name?\n\n");
  printf("[ ");
  printf("Unknown");
  printf(" ] ");

  fgets(Human_Name, sizeof(Human_Name), stdin);

  /* Replace newline in human name with a null zero */

  for (Count = 0; Count < strlen(Human_Name); Count++) {
    if (Human_Name[Count] == '\n')
      Human_Name[Count] = '\0';
  }

  printf("\n[ ");
  printf("%s", Bot_Name);
  printf(" ]");
  printf(" How can I help, %s?\n\n", Human_Name);
  printf("[ ");
  printf("%s", Human_Name);
  printf(" ] ");
  fgets(Human_Name, sizeof(Human_Name), stdin);
}

int main(void)
{
  display();
  conversation();

  return(0);
}