added a conversion process to turn party votes into candidate votes

src/ballot.rs

@@ -64,5 +64,29 @@ impl Ballot {
 			ty,
 		})
 	}
+
+	pub fn to_candidate_ballot(self, header: &Header) -> Self {
+		match self.ty {
+			BallotType::Candidate => self,
+			BallotType::Party => {
+				let mut votes = Vec::<usize>::new();
+				
+				for party_id in self.votes {
+					votes.extend(header.parties[party_id].member_ids.iter().copied());
+				}
+
+				Ballot {
+					state: self.state,
+					division: self.division,
+					collection_point: self.collection_point,
+					collection_point_id: self.collection_point_id,
+					batch_id: self.batch_id,
+					paper_id: self.paper_id,
+					ty: BallotType::Candidate,
+					votes,
+				}
+			},
+		}
+	}
 }
 

src/counter.rs

@@ -13,7 +13,7 @@ impl Counter {
 		let mut ballots = Vec::new();
 
 		for row in csv {
-			ballots.push(Ballot::parse(row?, &header)?);
+			ballots.push(Ballot::parse(row?, &header)?.to_candidate_ballot(&header));
 		}
 
 		Ok(Counter {