Module2

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

// Define a structure for linked list node
typedef struct QuoteNode {
    char *text;
    struct QuoteNode *next;
} QuoteNode;

// ANSI color codes and text formatting
#define RESET_COLOR "\033[0m"
#define BOLD_TEXT "\033[1m"
#define UNDERLINED_TEXT "\033[4m"

// Arrays of quotes for each category
const char* motivational_quotes[] = {
    "The only way to do great work is to love what you do. – Steve Jobs",
    "Believe you can and you're halfway there. – Theodore Roosevelt",
    "Your time is limited, don't waste it living someone else's life. – Steve Jobs"
};

const char* humorous_quotes[] = {
    "I'm not arguing, I'm just explaining why I'm right.",
    "I can resist everything except temptation. – Oscar Wilde",
    "Life is short. Smile while you still have teeth."
};

const char* wisdom_quotes[] = {
    "The best way to predict the future is to invent it. – Alan Kay",
    "The only true wisdom is in knowing you know nothing. – Socrates",
    "Turn your wounds into wisdom. – Oprah Winfrey"
};


// Function to remove a quote by index from the linked list
void removeQuote(QuoteNode **head, int index) {
    if (!head || !(*head)) {
        printf("No quotes available.\n");
        return;
    }

    QuoteNode *temp = *head;
    if (index == 0) {
        *head = temp->next;
        free(temp->text);
        free(temp);
        return;
    }

    for (int i = 0; temp != NULL && i < index - 1; i++) {
        temp = temp->next;
    }

    if (!temp || !temp->next) {
        printf("Invalid index.\n");
        return;
    }

    QuoteNode *next = temp->next->next;
    free(temp->next->text);
    free(temp->next);
    temp->next = next;
}

// Function to update a quote by index in the linked list
void updateQuote(QuoteNode *head, int index, const char *newQuote) {
    if (!head) {
        printf("No quotes available.\n");
        return;
    }

    QuoteNode *temp = head;
    for (int i = 0; temp != NULL && i < index; i++) {
        temp = temp->next;
    }

    if (!temp) {
        printf("Invalid index.\n");
        return;
    }

    free(temp->text);
    temp->text = (char*)malloc((strlen(newQuote) + 1) * sizeof(char));
    if (!temp->text) {
        printf("Memory allocation failed\n");
        exit(1);
    }
    strcpy(temp->text, newQuote);
}

// Function to display a random quote from a static category
void displayRandomQuoteFromCategory(const char* quotes[], int size) {
    if (size == 0) {
        printf("No quotes available in this category.\n");
        return;
    }
    int randomIndex = rand() % size;
    printf(BOLD_TEXT "Random Quote: %s\n" RESET_COLOR, quotes[randomIndex]);
}

// Function to free allocated memory for linked list
void freeQuotes(QuoteNode *head) {
    QuoteNode *temp;
    while (head) {
        temp = head;
        head = head->next;
        free(temp->text);
        free(temp);
    }
}

// Function to display the menu and get user choice
int displayMenu() {
    int choice;
    printf(BOLD_TEXT "Menu:\n" RESET_COLOR);
    printf("6. Display a random motivational quote\n");
    printf("7. Display a random humorous quote\n");
    printf("8. Display a random wisdom quote\n");
    printf("9. Exit\n");
    printf("Enter your choice: ");
    scanf("%d", &choice);
    getchar();  // Consume newline character left in the input buffer
    return choice;
}

int main() {
    // Initialize the linked list
    QuoteNode *quotes = NULL;

    // Seed the random number generator
    srand(time(NULL));

    int choice;
    char newQuote[256];
    int index;

    while (1) {
        choice = displayMenu();

        switch (choice) {
           
            case 6:
                displayRandomQuoteFromCategory(motivational_quotes, sizeof(motivational_quotes) / sizeof(motivational_quotes[0]));
                break;

            case 7:
                displayRandomQuoteFromCategory(humorous_quotes, sizeof(humorous_quotes) / sizeof(humorous_quotes[0]));
                break;

            case 8:
                displayRandomQuoteFromCategory(wisdom_quotes, sizeof(wisdom_quotes) / sizeof(wisdom_quotes[0]));
                break;

            case 9:
                freeQuotes(quotes);
                printf("Exiting the program.\n");
                return 0;

            default:
                printf("Invalid choice. Please try again.\n");
                break;
        }
    }

    return 0;
}