Saravanan Toll Calculator

pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.presis.code.challenge</groupId>
+  <artifactId>toll-calculator</artifactId>
+  <version>2.0.0</version>
+  <name>Toll</name>
+  <description>Toll calculator program - Code Challanges</description>
+
+  <properties>
+     <maven.compiler.source>1.8</maven.compiler.source>
+     <maven.compiler.target>1.8</maven.compiler.target>
+</properties>
+
+  <dependencies>
+  	<dependency>
+	    <groupId>junit</groupId>
+	    <artifactId>junit</artifactId>
+	    <version>4.13.2</version>
+	    <scope>test</scope>
+	</dependency>
+
+	<dependency>
+	    <groupId>com.fasterxml.jackson.dataformat</groupId>
+	    <artifactId>jackson-dataformat-properties</artifactId>
+	    <version>2.14.2</version>
+	</dependency>
+
+  </dependencies>
+
+</project>

src/main/java/com/presis/code/challenge/toll/TollCalculator.java

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+package com.presis.code.challenge.toll;
+
+import java.time.Duration;
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.List;
+
+import com.presis.code.challenge.toll.config.ApplicationProperties;
+import com.presis.code.challenge.toll.model.TollMaster;
+import com.presis.code.challenge.toll.model.Vehicle;
+import com.presis.code.challenge.util.TollUtil;
+
+public final class TollCalculator {
+
+	static TollMaster configData;
+
+	public TollCalculator() {
+		configData = new ApplicationProperties().readMaster();
+	}
+
+	/**
+	 * Calculate the total toll fee for one day
+	 *
+	 * @param vehicle - the vehicle
+	 * @param dates   - date and time of all passes on one day
+	 * @return - the total toll fee for that day
+	 */
+	public int calculateTotalTollFee(Vehicle vehicle, LocalDateTime... dates) {
+		//  checkSameDay - date and time of all passes on one day
+		if (configData != null && vehicle != null && dates != null && TollUtil.checkSameDay(dates)) {
+
+			Arrays.sort(dates); // If in case not in order
+			LocalDateTime intervalStart = dates[0];
+
+			int firstTollFee = calculateOneEntry(vehicle, intervalStart);
+			int total = firstTollFee;
+			System.out.println("1st Travel on = " + intervalStart + ", Toll Fee = " + firstTollFee);
+			List<LocalDateTime> remainingInterval = Arrays.asList(dates).subList(1, dates.length);
+
+			for (LocalDateTime date : remainingInterval) {
+				int currentTollFee = calculateOneEntry(vehicle, date);
+				long minutesSincePreviousTrip = Duration.between(intervalStart, date).toMinutes();
+
+				System.out.println("Travel on = " + date + ", Toll Fee = " + currentTollFee + ", From last Trip min = " + minutesSincePreviousTrip);
+
+				if (minutesSincePreviousTrip > configData.getMaxNextTripMinute()) {
+					intervalStart = date;
+					firstTollFee = currentTollFee;
+					total = total + currentTollFee;
+				} else if (firstTollFee < currentTollFee) {
+					total = total + currentTollFee - firstTollFee;
+				}
+				System.out.println("Total Toll Fee -> " + total);
+			}
+			return total > configData.getMaxFee() ? configData.getMaxFee() : total;
+		}
+		return 0;
+	}
+
+	private static int calculateOneEntry(Vehicle vehicle, LocalDateTime date) {
+		if (TollUtil.isTollFreeDate(configData, date.toLocalDate()) || TollUtil.isTollFreeVehicle(vehicle)) {
+			return 0;
+		}
+		return configData.fetchFeeForTimeRange(date.toLocalTime());
+	}
+}