Add initial API interaction functions and database schema

app/Controller/LoginLogic.js

@@ -0,0 +1,59 @@
+// If a user's subgroupID is 0, Treat them as ADMIN
+// If a user's subgroupID is 1, Treat them as USER [For Public instances only subgroups avail are 0 and 1]
+// If a user's subgroupID is 2, Treat them as USER [For Private instances, subgroups could range from 0-999 where 0 = admin, non 0 = member group]
+// Use GroupID to link Subgroup to a group in the groups table, where subgroup --> defines permissions and whether the person is allowed to play or not.
+// within subgroups have TeamGroups --> TeamGroups can come and go, they are not a fixed table [Team groups are enabled per admin request.]
+// Team group ==> IF Teams are enabled a user can create a team group, if they're admin in team group they can kick people.
+// All team groups have a unique JOIN CODE.
+// User's table should have their [NULLABLE] unique Gid, SGid and TGid.
+// Gid == GroupID || SGid == SubgroupID || TGid == TeamGroupID
+// When a user logs in, we check their Gid, SGid and TGid to determine their permissions and what they can see on the front end.
+// If a user is in a team group, they can only see other members of that team group and the games that team group is playing.
+// If a user is in a subgroup, they can see all members of that subgroup and the games that subgroup is playing.
+// If a user is in the admin subgroup, they can see all members and all games.
+
+import { useState } from 'react';
+import { useNavigation } from '@react-navigation/native';
+
+const useLoginLogic = () => {
+  const [username, setUsername] = useState('');
+  const [password, setPassword] = useState('');
+  const navigation = useNavigation();
+  const dispatch = useDispatch();
+
+  const handleLogin = async () => {
+    try {
+      // Replace with your actual API endpoint
+      const response = await fetch('https://yourapi.com/login', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify({ username, password }),
+      });
+
+      if (!response.ok) {
+        alert("API error");
+      }
+
+      const data = await response.json();
+      // Assuming the API returns user data including Gid, SGid, and TGid
+      const { Gid, SGid, TGid } = data;
+
+      // Dispatch user data to Redux store
+      dispatch(setUser({ Gid, SGid, TGid }));
+
+      // Navigate to the appropriate screen based on user role
+      if (SGid === 0) {
+        navigation.navigate('AdminDashboard');
+      } else if (SGid === 1) {
+        navigation.navigate('UserDashboard');
+      } else {
+        navigation.navigate('PrivateDashboard');
+      }
+    } catch (error) {
+      Alert.alert('Login Error', error.message);
+    }
+  };
+
+export default LoginLogic;