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getTotalAmount() async { // totalDistance = calculateDistance( // isPickSavedAddress ? pickAddressData!.latitude.validate().toDouble() : pickLat.toDouble(), // isPickSavedAddress ? pickAddressData!.longitude.validate().toDouble() : pickLong.toDouble(), // isDeliverySavedAddress ? deliveryAddressData!.latitude.validate().toDouble() : deliverLat.toDouble(), // isDeliverySavedAddress ? deliveryAddressData!.longitude.validate().toDouble() : deliverLong.toDouble(), // ); await getGoogleMapDirectionsApi( isPickSavedAddress ? pickAddressData!.latitude.validate().toDouble() : pickLat.toDouble(), isPickSavedAddress ? pickAddressData!.longitude.validate().toDouble() : pickLong.toDouble(), isDeliverySavedAddress ? deliveryAddressData!.latitude.validate().toDouble() : deliverLat.toDouble(), isDeliverySavedAddress ? deliveryAddressData!.longitude.validate().toDouble() : deliverLong.toDouble(), ).then((distance) { totalDistance = distance; totalAmount = 0; weightCharge = 0; distanceCharge = 0; totalExtraCharge = 0; /// calculate weight Charge if (weightController.text.toDouble() > cityData!.minWeight!) { weightCharge = ((weightController.text.toDouble() - cityData!.minWeight!) * cityData!.perWeightCharges!).toStringAsFixed(digitAfterDecimal).toDouble(); } /// calculate distance Charge if (totalDistance > cityData!.minDistance!) { distanceCharge = ((totalDistance - cityData!.minDistance!) * cityData!.perDistanceCharges!).toStringAsFixed(digitAfterDecimal).toDouble(); } /// total amount totalAmount = cityData!.fixedCharges! + weightCharge + distanceCharge; /// calculate extra charges cityData!.extraCharges!.forEach((element) { totalExtraCharge += countExtraCharge(totalAmount: totalAmount, charges: element.charges!, chargesType: element.chargesType!); }); /// All Charges totalAmount = (totalAmount + totalExtraCharge).toStringAsFixed(digitAfterDecimal).toDouble(); }); }
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