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vendor-info
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modified purchase function

This commit is contained in:
Win 2024-09-05 10:13:53 +07:00
parent b6b164f434
commit 76c22938c1
2 changed files with 60 additions and 22 deletions
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vendorInfo
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vendorInfo.c
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@ -1,8 +1,11 @@
/*
* Win (Thanawin Pattanaphol)
* vendorInfo.c
* 8th August 2024
*/
*
* Program that
*
*
* Created by Win (Thanawin Pattanaphol), 28th August 2024
*/
#include <stdio.h>
#include <stdlib.h>
@ -20,8 +23,22 @@ struct vendor_item
int item_price_baht;
} vendors[MAX_VENDORS];
struct purchase_res
{
int status;
char vendor_name[20];
int price_owe_baht;
};
int read_input(char str[], int n);
int search(char query[], struct vendor_item vendors[MAX_VENDORS], int total_vendors);
int search(char query[],
struct vendor_item vendors[MAX_VENDORS],
int total_vendors);
struct purchase_res purchase(int item_id,
int amount,
struct vendor_item vendors[MAX_VENDORS]);
int main()
{
@ -52,7 +69,7 @@ int main()
strncpy(vendors[index].vendor_name, token, strlen(token) + 1);
token = strtok(NULL, " ");
/* TO-DO: VALIDATE MERCHANDISE BY PUTTING EVERYTHING AS LOWERCASE*/
/* TO-DO: VALIDATE MERCHANDISE BY PUTTING EVERYTHING AS LOWERCASE */
strncpy(vendors[index].merchandise, token, strlen(token) + 1);
token = strtok(NULL, " ");
@ -85,18 +102,17 @@ int main()
printf("%-50s %s\n", vendor_info, vendor_stock);
}
char user_query[100];
while (1)
{
char user_query[100];
printf("What do you want to buy? (DONE to end) ");
read_input(user_query, 100);
if ((strcmp(user_query, "DONE") == 0))
{
break;
}
printf("What do you want to buy? (DONE to end) ");
read_input(user_query, 100);
// convert string to lowercase - each character one by one
int user_query_length = strlen(user_query);
for (int i = 0; i < user_query_length; i++)
@ -104,17 +120,25 @@ int main()
user_query[i] = tolower(user_query[i]);
};
int result = search(user_query, vendors, total_vendors);
if(result > 0)
int item_id = search(user_query, vendors, total_vendors);
printf("THING: %d\n", item_id);
if(item_id > 0)
{
int item_amount;
char input[10];
read_input(input, 10);
if(atoi(input) < 0)
{
item_amount = atoi(input);
int item_amount = atoi(input);
struct purchase_res response = purchase(item_id, item_amount, vendors);
if (response.status == 0)
{
printf("You owe %s a total of %d baht.\n",
response.vendor_name,
response.price_owe_baht
);
}
}
else
{
@ -134,7 +158,7 @@ int main()
};
/*
custom read input function
read_input: Custom read input function
str = string itself
n = max amount of characters that the function is able to read into buffer
@ -168,14 +192,17 @@ int read_input(char str[], int n)
- i: Item Number
- 0: No results found
*/
/* TO-DO IMPLEMENT RESPONSE STRUCT */
int search(char query[], struct vendor_item vendors[MAX_VENDORS], int total_vendors)
{
int i;
for (i = 0; i < total_vendors; i++)
{
printf("Step: %d\n", i);
if (strcmp(query, vendors[i].merchandise) == 0)
{
printf("Query: %s | Result: %s %s\n",
printf("\nQuery: %s | Result: %s %s\n",
query,
vendors[i].vendor_name,
vendors[i].merchandise
@ -187,6 +214,7 @@ int search(char query[], struct vendor_item vendors[MAX_VENDORS], int total_vend
if (i == total_vendors)
{
printf("THING: %d %d", i, total_vendors);
return 0;
}
};
@ -202,16 +230,26 @@ int search(char query[], struct vendor_item vendors[MAX_VENDORS], int total_vend
Return values:
-
*/
int purchase(int item_id, int amount, struct vendor_item vendors[MAX_VENDORS])
struct purchase_res purchase(int item_id, int amount, struct vendor_item vendors[MAX_VENDORS])
{
if(amount <= vendors[item_id].inventory_count)
{
// Decrease vendor inventory
vendors[item_id].inventory_count = vendors[item_id].inventory_count - amount;
return vendors[item_id].inventory_count;
struct purchase_res response;
response.status = 0;
strcpy(response.vendor_name, vendors[item_id].vendor_name);
response.price_owe_baht = vendors[item_id].item_price_baht * amount;
return (response);
}
else
{
return 0;
struct purchase_res response;
response.status = 1;
return response;
}
};