json stuff

src/db.c

@@ -0,0 +1,3 @@
+#include "include/db.h"
+
+

src/include/db.h

@@ -0,0 +1,13 @@
+#ifndef DB_H
+#define DB_H
+
+typedef struct {
+	char *title, *subtitle, *isbn;
+	char *authors, *subjects, *langs;
+	char *date_added, *pub_date;
+	char *image_url;
+
+	int year_of_pub, page_len;
+} book_t;
+
+#endif

src/main.c

@@ -1,16 +1,82 @@
-#include <stdio.h>
+#include <cjson/cJSON.h>
+#include <argp.h>
+#include <stdlib.h>
+#include <stdbool.h>
 
 #include "include/curl.h"
+#include "include/json.h"
 
-int main(void)
+struct flags {
+	bool json, db, print;
+};
+
+static void init_flags(struct flags* flags) {flags->json = false;flags->db = false;flags->print = false;}
+
+const char* argp_program_version = "isbn-lookup 2.1";
+const char* argp_program_bug_address = "supernovaa41@gmx.com";
+static char doc[] = "Lookup details of a book from the ISBN. Using OpenLibrary API.";
+static char args_doc[] = "<ISBN>";
+static struct argp_option options[] = {
+	{0, 'j', "json", 0, "output to json", 0},
+	{0, 'd', "db", 0, "output to sqlite3 database", 0},
+	{0, 'p', 0, 0, "print the full json response", 0},
+	{0}
+};
+
+static error_t parse_opt(int key, char* arg, struct argp_state* state)
 {
-	get_response resp;
-
-	book_api_call("9780762437818", &resp);	
-
-	puts(resp.buf);
-
-	free_get_response(&resp);
-
+	struct flags* flags = state->input;
+	switch (key) {
+		case 'j':
+			if (flags->db) {
+				fprintf(stderr, "-j and -d are mutually exclusive.\n");
+				exit(EXIT_FAILURE);
+			}
+			flags->json = true;
+			break;
+		case 'd':
+			if (flags->json) {
+				fprintf(stderr, "-j and -d are mutually exclusive.\n");
+				exit(EXIT_FAILURE);
+			}
+			flags->db = true;
+			break;
+		case 'p':
+			flags->print = true;
+			break;
+		case ARGP_KEY_END:
+			break;
+		default:
+			return ARGP_ERR_UNKNOWN;
+	}
+	return 0;
+}
+
+static struct argp argp = {options, parse_opt, args_doc, doc, 0, 0, 0};
+struct flags flags;
+
+int main(int argc, char* argv[])
+{
+	get_response resp;
+	cJSON* query;
+
+	init_flags(&flags);
+	argp_parse(&argp, argc, argv, 0, 0, &flags);
+
+	book_api_call("9780762437818", &resp);
+
+	if (flags.print)
+		puts(resp.buf);
+
+	get_json_book(&resp, &query);
+	free_get_response(&resp);
+
+	if (flags.json)
+		json_out(&query);
+	else
+	 	// db out;
+
+
+	
 	return 0;
 }