firestore.rules

service cloud.firestore {
  match /databases/{database}/documents {

     // True if the user is an admin
    function isAdmin() {
      return request.auth.uid != null && get(/databases/$(database)/documents/admins/$(request.auth.uid)).data.isAdmin;
    }

    // True if user owns the document
    function isOwner(userId){
			return request.auth.uid == userId;
		}

  	// True if user is logged in
  	function isAuthed(){
  		return request.auth.uid != null
  	}

     //True if team is public
  	function isTeamPublic(teamId){
      return  get(/databases/$(database)/documents/teams/$(teamId)).data.isPublic;
  	}


      //True if user is team owner
  	function isTeamOwner(teamId){
      return request.auth.uid == get(/databases/$(database)/documents/teams/$(teamId)).data.owner.uid;
  	}

     // True if the user is a member of the team
    function isTeamMember(teamId) {
      return exists(/databases/$(database)/documents/teams/$(teamId)/members/$(request.auth.uid));
    }

    // True if user is invited to the team.
    function isInvited(teamId){
    	return exists(/databases/$(database)/documents/invitations/$(request.auth.token.email.lower())/teams/$(teamId));
    }

    match /invitations/{email} {
        allow read: if isAuthed() && request.auth.token.email == email || isAdmin();
        allow write: if isAuthed();
        match /teams/{teamId} {
          allow read:  if isAuthed() && request.auth.token.email == email || isAdmin();
          allow write: if isAuthed();
      }
    }

    match /messages/{userId} {
          allow read : if isAdmin() || isAuthed() && isOwner(userId);
          allow write: if isAuthed();
          match /messages/{messageId} {
          	allow read, delete, update: if isAuthed() && isOwner(userId) || resource.data.sender.uid == request.auth.uid || isAdmin();
      			allow create: if isAuthed();
      }
    }

		match /profiles/{userId} {
      allow read: if isAuthed();
      allow write: if isOwner(userId) || isAdmin();
      match /invitations/{teamId} {
         allow read, write: if true;
      }
      match /requests/{teamId} {
         allow read, write: if true;
      }
      match /teams/{teamId} {
         allow read : if true;
         allow delete : if  isOwner(userId) || isTeamOwner(teamId) || isAdmin();
         allow create : if  isOwner(userId) || isTeamOwner(teamId) || isAdmin();
         allow update : if  isOwner(userId) || isTeamOwner(teamId) || isAdmin();
      }
      match /messages/{messageId}  {
      	allow read, write: if true;
      }
    }

    match /teams/{teamId} {
      allow read, create: if isAuthed();
			allow delete, update: if resource.data.owner.uid == request.auth.uid  || isAdmin();
			match /messages/{messageId} {
       allow create: if isAuthed() && isTeamMember(teamId);
       allow read: if isAuthed() && isTeamPublic(teamId) || isTeamMember(teamId);
       allow delete, update: if isAuthed() && isTeamMember(teamId) && resource.data.sender.uid == request.auth.uid || isAdmin();
      }
      match /members/{uid} {
         allow read: if isAuthed();
				 allow delete: if isTeamOwner(teamId) || isOwner(uid) || isAdmin();
      	 allow create: if isTeamPublic(teamId) || isTeamOwner(teamId) || isAdmin() || isInvited(teamId);
      }
      match /invitations/{email}{
      	allow read, write: if true;
      }
       match /requests/{uid}{
      	allow read, write: if true;
      }
    }

    match /towns/{townId} {
         allow read: if true;
         allow write: if isAdmin();
    }

   match /trashDrops/{dropId} {
        allow read: if true;
        allow write: if isAuthed();
    }

    match /admins/{userId} {
        allow read, write: if isAdmin();
    }

    match /eventInfo/{id} {
           allow read: if true;
					 allow write: if isAdmin();
    }

   match /trashCollectionSites/{id} {
        allow read: if true;
        allow write: if true;
    }

   match /supplyDistributionSites/{id} {
        allow read: if true;
        allow write: if true;
    }

    match /celebrations/{id} {
        allow read: if true;
        allow write: if true;
    }

    match /updates/{id}{
        allow read: if true;
        allow write: if isAdmin();
    }

    match /faqs/{faqId} {
        allow read: if isAuthed();
        allow write: if isAdmin();
     }
  }
}