Add lite website (#73)

Reviewed-on: #73

backend/db.go

@@ -416,16 +416,20 @@ func (db *Db) CompleteTask(taskId int) error {
 
 		if sumOfWeights > 0 {
 			// Distribute the reward to the allowances
-			for allowanceRow := range tx.Query("select id, weight from allowances where user_id = ? and weight > 0").Bind(userId).Range(&err) {
-				var allowanceId int
+			for allowanceRow := range tx.Query("select id, weight, target, balance from allowances where user_id = ? and weight > 0 order by (target - balance) asc").Bind(userId).Range(&err) {
+				var allowanceId, allowanceTarget, allowanceBalance int
 				var allowanceWeight float64
-				err = allowanceRow.Scan(&allowanceId, &allowanceWeight)
+				err = allowanceRow.Scan(&allowanceId, &allowanceWeight, &allowanceTarget, &allowanceBalance)
 				if err != nil {
 					return err
 				}
 
 				// Calculate the amount to add to the allowance
 				amount := int((allowanceWeight / sumOfWeights) * float64(remainingReward))
+				if allowanceBalance+amount > allowanceTarget {
+					// If the amount reaches past the target, set it to the target
+					amount = allowanceTarget - allowanceBalance
+				}
 				sumOfWeights -= allowanceWeight
 				err = tx.Query("update allowances set balance = balance + ? where id = ? and user_id = ?").
 					Bind(amount, allowanceId, userId).Exec()