file backend should be fully implemented now

backends/README.py

@@ -11,10 +11,12 @@ def load_user(username): pass
 def save_user(user): pass
 def delete_user(user): pass
 
+def load_token(tokenid): pass
 def load_tokens(user): pass
 def save_token(token): pass
 def delete_token(token): pass
 
+def load_invite(inviteid): pass
 def load_invites(user): pass
 def save_invite(token): pass
 def delete_invite(token): pass

backends/file.py

@@ -11,29 +11,53 @@ def init():
 		try: open(p,'a').close()
 		except PermissionError: raise Exception(f"Backend file can't be written: {p}")
 
+def _load(name,pos,file,obj):
+	for line in linegen(file):
+		split=line.split(',')
+		if split[pos]==name: return obj(*split)
+	raise Exception('No such',obj.__name__,'with identifier',name)
+def _load_multi(name,pos,file,obj):
+	out=[]
+	for line in linegen(file):
+		split=line.split(',')
+		if split[pos]==name: out.append(obj(*split))
+	return out
+def _save(thing,pos,file,comp):
+	gen=linegen(file)
+	for line in gen:
+		split=line.split(',')
+		if split[pos]==comp: update(file,{gen.send(True):thing.serialise}); break
+	else: update(file,{-1:thing.serialise})
+def _delete(thing,pos,file,comp):
+	gen=linegen(file)
+	for line in gen:
+		split=line.split(',')
+		if split[pos]==comp: remove(file,[gen.send(True)]); break
+
 def load_user(username):
-	for line in linegen(users):
-		split=line.split(',')
-		if split[0]==username: return models.User(*split)
+	return _load(username,0,users,models.User)
 def save_user(user):
-	gen=linegen(users)
-	for line in gen:
-		split=line.split(',')
-		if split[0]==user.username: update(users,{gen.send(True):user.csv}); break
-	else: update(users,{-1:user.csv})
+	return _save(user,0,users,user.username)
 def delete_user(user):
-	gen=linegen(users)
-	for line in gen:
-		split=line.split(',')
-		if split[0]==user.username: remove(users,[gen.send(True)]); break
+	return _delete(user,0,users,user.username)
 
-def load_tokens(user): pass
-def save_token(token): pass
-def delete_token(token): pass
+def load_token(tokeid):
+	return _load(tokeid,0,access_tokens,models.AccessToken)
+def load_tokens(user):
+	return _load_multi(user.username,1,access_tokens,models.AccessToken)
+def save_token(token):
+	return _save(token,0,access_tokens,token.value)
+def delete_token(token):
+	return _delete(token,0,access_tokens,token.value)
 
-def load_invites(user): pass
-def save_invite(token): pass
-def delete_invite(token): pass
+def load_invite(tokeid):
+	return _load(tokeid,0,invite_tokens,models.InviteToken)
+def load_invites(user):
+	return _load_multi(user.username,1,invite_tokens,models.InviteToken)
+def save_invite(token):
+	return _save(token,0,invite_tokens,token.value)
+def delete_invite(token):
+	return _delete(token,0,invite_tokens,token.value)
 
 def linegen(path):
 	i=0

models.py

@@ -58,7 +58,7 @@ class User(AbstractUser):
 	invited_by: AbstractUser=None # Root node will just reference itself
 	email: str=''
 	@property
-	def csv(self):
+	def serialise(self):
 		return ','.join([self.username,self.password_hash,str(self.salt),self.invited_by.username,self.email])
 	def create_inv_token(self,*args,**kwargs):
 		tok=InviteToken(self,*args,**kwargs)