Update flight-booking-manager.js

lib/flight-booking-manager.js

@@ -101,18 +101,17 @@ class FlightBookingManager extends Contract {
     }
 
     async isSeatAvailable(ctx, txId, tm, seatNumber) {
-        let seatsCount = await this.querySeatsCount(ctx, txId, tm);
-        let reserved = await this.queryBookedSeatsCount(ctx, txId, tm);
+        let seatOwner = await this._queryVariable(ctx, txId, 'seatOwner_' + seatNumber, null, tm);
 
-        return seatNumber >= reserved && seatNumber < seatsCount;
+        return seatOwner !== null && seatNumber !== undefined;
     }
 
     async queryNextAvailableSeat(ctx, txId, tm) {
-        let seatsCount = await this.querySeatsCount(ctx, txId, tm);
-        let reserved = await this.queryBookedSeatsCount(ctx, txId, tm);
-
-        if (seatsCount > reserved) {
-            return reserved;
+        let seats = await this.querySeatsCount(ctx, txId, tm);
+        for (let i = 0; i < seats; i++) {
+            if (await this.isSeatAvailable(ctx, txId, tm, i)) {
+                return i;
+            }
         }
 
         return -1;
@@ -131,8 +130,8 @@ class FlightBookingManager extends Contract {
      * @returns {Promise<Boolean>}
      */
     async hasReservation(ctx, txId, tm) {
-        let reservations = await this.queryBookedSeatsCount(ctx, txId, tm);
-        for (let i = 0; i < reservations; i++) {
+        let seats = await this.querySeatsCount(ctx, txId, tm);
+        for (let i = 0; i < seats; i++) {
             if (await this.isSeatBookedByClient(ctx, txId, tm, i)) {
                 return true;
             }