Update db_delete_user.c

src/db_delete_user.c

@@ -1,8 +1,13 @@
-#ifdef USE_SQLITE3
 #include "database.h"
+
+#ifdef USE_SQLITE3
 #include "sql.h"
 #endif
 
+#ifndef USE_SQLITE3
+#include "file.h"
+#endif
+
 #include "user.h"
 
 bool db_delete_user(const int id) {
@@ -47,6 +52,31 @@ bool db_delete_user(const int id) {
   pthread_mutex_unlock(&db_mutex);
   return true;
 #else
+  pthread_mutex_lock(&users_file_mutex);
+  char *data = read_file("users_db.json");
+  cJSON *users = cJSON_Parse(data);
+  cJSON *user = nullptr;
+  int index = 0;
+  bool found = false;
+  cJSON_ArrayForEach(user, users) {
+    cJSON *user_id = cJSON_GetObjectItem(user, "id");
+    if (user_id->valueint == id) {
+      cJSON_DeleteItemFromArray(users, index);
+      found = true;
+      break;
+    }
+    index++;
+  }
+  if (!found) {
+    pthread_mutex_unlock(&users_file_mutex);
+    return false;
+  }
+  char *new_data = cJSON_Print(users);
+  write_file("users_db.json", new_data);
+  free(new_data);
+  free(data);
+  cJSON_Delete(users);
+  pthread_mutex_unlock(&users_file_mutex);
   return true;
 #endif
 }