SuperNovaa41/isbn-lookup
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cleans up the outputting a bit

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This commit is contained in:
SuperNovaa41 2024-01-14 21:42:09 -05:00
parent 16fd5277b8
commit a88232f48c
1 changed files with 37 additions and 32 deletions
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69
src/main.c
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@ -12,6 +12,11 @@
#define MAX_BUF_LEN 1024
enum book_options {
PRINT_TO_STDIN,
WRITE_TO_FILE
};
void print_book(book_t* book)
{
printf("ISBN: %s\n", book->isbn);
@ -46,12 +51,23 @@ void write_to_file(book_t* book)
fclose(file);
}
void do_output(book_t* book, enum book_options output_type)
{
if (WRITE_TO_FILE == output_type) {
write_to_file(book);
return;
}
print_book(book);
}
int main(int argc, char* argv[])
{
char isbn_buf[14]; // want to hold a max of 14 so we can hold up to ISBN13s
// want to hold a max of 14 so we can hold up to ISBN13s
char isbn_buf[14];
char options[2];
CURLcode res;
book_t new_book;
enum book_options output_type;
if (3 != argc) {
printf("Usage: isbn [isbn] [options]\n");
@ -65,35 +81,32 @@ int main(int argc, char* argv[])
}
/**
* We must initialize cURL
*/
// We must initialize cURL
curl_global_init(CURL_GLOBAL_ALL);
/**
* Grab the ISBN from argv
*/
// Grab the ISBN from argv
snprintf(isbn_buf, 14, "%s", argv[1]);
/**
* Grab the formatting options from argv
*/
// Grab the formatting options from argv
snprintf(options, 2, "%s", argv[2]);
if (!(('w' == options[0]) || ('r' == options[0]))) {
fprintf(stderr, "Invalid option submitted!\n");
return EXIT_FAILURE;
switch(options[0]) {
case 'w':
output_type = WRITE_TO_FILE;
break;
case 'r':
output_type = PRINT_TO_STDIN;
break;
default:
fprintf(stderr, "Invalid option provided!\n");
return EXIT_FAILURE;
}
/**
* Setup the output string
*/
// Setup the output string
string get_output;
init_string(&get_output);
/**
* Perform the get request
*/
// Perform the get request
res = perform_book_get(isbn_buf, &get_output);
if (0 != res) {
fprintf(stderr, "Failed to perform the get request!\n");
@ -101,24 +114,16 @@ int main(int argc, char* argv[])
}
/**
* Now we want to parse the JSON input
*/
// Now we want to parse the JSON input
parse_json(&get_output, isbn_buf, &new_book);
/**
* We need to free this string
*/
// We need to free this string
free(get_output.buf);
/**
* NOW we either print or save the book
*/
if (options[0] == 'w')
write_to_file(&new_book);
else if (options[0] == 'r')
print_book(&new_book);
// NOW we either print or save the book
do_output(&new_book, output_type);
// Need to tree this string
free(new_book.authors);
return 0;