json_t * get_projects(json_t * root_class){
json_t *links, *workItems,*projects;
const char * url;
int retcod[] = { 0 };
if (!json_is_object(root_class)) {
fprintf(stderr, "***error: root_class is not an object\n");
return NULL;
}
links = json_object_get(root_class, "_links");
if (!json_is_object(links)) {
fprintf(stderr, "***error: root_class._links is not an object\n");
return NULL;
}
workItems = json_object_get(links, "workItems");
if (!json_is_string(workItems)) {
fprintf(stderr, "***error: root_class._links.workItems is not a string\n");
return NULL;
}
url = json_string_value(workItems);
projects = http_get_json(url, retcod);
projects = json_object_get(projects, "workItems");
if (!json_is_array(projects)){
fprintf(stderr, "***error: workItems is not an array\n");
return NULL;
}
return projects;
}
const array_t *sc_search_tracks(sc_t *sc, char *q) {
char *url = sc_create_url(SC_ETRACKS, NULL, NULL, SC_ARG_LEN(2),
SC_ARG_LIST(sc->client_id, "q", q, "limit", "10"));
cJSON *root = http_get_json(url);
free(url);
return sc_tracks_from_json(root);
}
const array_t *sc_get_tracks(sc_t *sc) {
char *url = sc_create_url(SC_EUSERS, SC_ETRACKS, sc->username,
SC_ARG_LEN(0),
SC_DEFAULT_ARG_LIST(sc->client_id));
cJSON *root = http_get_json(url);
free(url);
return sc_tracks_from_json(root);
}
const array_t *sc_get_playlists(sc_t *sc) {
char *url = sc_create_url(SC_EUSERS, SC_EPLAYLISTS, sc->username,
SC_ARG_LEN(0),
SC_DEFAULT_ARG_LIST(sc->client_id));
cJSON *root = http_get_json(url);
free(url);
array_t *playlists = arrnew(cJSON_GetArraySize(root));
for (int i = 0; i < cJSON_GetArraySize(root); i++) {
cJSON *playlist = cJSON_GetArrayItem(root, i);
arradd(playlists, (void*)sc_playlist_from_json(playlist));
}
cJSON_Delete(root);
return playlists;
}
json_t * get_workItem(json_t * root_projects, int index){
json_t *project, *links, *self ,*workItem;
const char * url;
int retcod[] = { 0 };
project = json_array_get(root_projects, index);
if (!json_is_object(project)) {
fprintf(stderr, "***error: projects[%d] is not an object\n", index);
return NULL;
}
links = json_object_get(project, "_links");
if (!json_is_object(links)) {
fprintf(stderr, "***error: projects[%d]._links is not an object\n",index);
return NULL;
}
self = json_object_get(links, "self");
if (!json_is_string(self)) {
fprintf(stderr, "***error: projects[%d]._links.self is not a string\n", index);
return NULL;
}
url = json_string_value(self);
workItem = http_get_json(url, retcod);
return workItem;
}
json_t * find_class(json_t * root, char * acronym, char * semester , char * class_name){
json_t *classes, *acro, *sem, *name,*current_class ,*links,*self,*class_link;
const char *value;
size_t i;
int retcod[] = { 0 }; // retcod = *int
if (!json_is_object(root)) {
fprintf(stderr, "***error: root is not an object\n");
return NULL;
}
classes = json_object_get(root, "classes");
if (!json_is_array(classes)) {
fprintf(stderr, "***error: classes is not an array\n");
return NULL;
}
/* at this point, root i an array, so we will look for the info we need */
for (i = 0; i < json_array_size(classes); i++){
/* get the classes[i] object */
current_class = json_array_get(classes, i);
if (!json_is_object(current_class)) {
fprintf(stderr, "***error: classes[%d] is not an object\n", i);
return NULL;
}
acro = json_object_get(current_class, "courseUnitShortName");
if (!json_is_string(acro)) {
fprintf(stderr, "***error: classes[%d].courseUnitShortName is not a string\n", i);
return NULL;
}
value = json_string_value(acro);
if ((strcmp(value, acronym)) != 0)
continue; // if the acronym is not the one we want, we skip the rest
sem = json_object_get(current_class, "lectiveSemesterShortName");
if (!json_is_string(sem)) {
fprintf(stderr, "***error: classes[%d].lectiveSemesterShortName is not a string\n", i);
return NULL;
}
value = json_string_value(sem);
if ((strcmp(value, semester)) != 0)
continue; // if the semester is not the one we want, we skip the rest
name = json_object_get(current_class, "className");
if (!json_is_string(sem)) {
fprintf(stderr, "***error: classes[%d].className is not a string\n", i);
return NULL;
}
value = json_string_value(name);
if ((strcmp(value, class_name)) != 0) //if the class name is not the one we want, we skip the rest
continue;
/* by this time, we found the acronym, semester and class name, so let's look for the class link */
links = json_object_get(current_class, "_links");
if (!json_is_object(links)) {
fprintf(stderr, "***error: classes[%d]._links is not an object\n", i);
return NULL;
}
self = json_object_get(links, "self");
if (!json_is_string(self)) {
fprintf(stderr, "***error: classes[%d]._links.self is not a string\n", i);
return NULL;
}
value = json_string_value(self);
class_link = http_get_json(value, retcod); /* using http_get_json function, we return the class link in a json_t type */
return class_link;
}
return NULL;
}
