Birds_v2.0

package Birds;

public class Birds {
	
	static String[][] store = new String[100][3];
	static String[][] sales = new String[1000][4];
	
	static int storeLength = 0;
	static int salesLength = 0;

	
	public static void main(String[] args) {		
		
		initializer();	
		
		System.out.println("Report1: Printing store (less then 3):");		
		printStore(3);
		System.out.println();
		
		System.out.println("Report2: How many birds was saled:");		
		System.out.println(totalBirdSaled());
		System.out.println();

		System.out.println("Report3: How many Eagles in the store:");		
		System.out.println(birdAmount("Eagle"));
		System.out.println();
		
		System.out.println("Report4: Total income:");		
		System.out.println(totalIncome() + "$");
		System.out.println();
		
		System.out.println("Report5: month №6 sales:");		
		System.out.println(monthIncome(6));
		System.out.println();
		
	}
	
	static void addToStore(String birdName, int amount){
		int i = getBirdId(birdName);
		if (i>=0){
			//add amount (only change)
			store[i][2]=String.valueOf(Integer.valueOf(store[i][2])+amount);				
		} else {
			//add row
			store[storeLength][0]=birdName;
			store[storeLength][1]="0";
			store[storeLength][2]=String.valueOf(amount);
			storeLength++;
		}
			
	}
	
	static int getBirdId(String birdName){
		for (int i = 0; i<storeLength;i++){
			if (store[i][0].equals(birdName)) {
				return i;				
			}
		}
		
		return -1;
	}
	
	
	static void changePrice(String birdName, int newPrice){
		int i = getBirdId(birdName);
		if (i>=0) {
			store[i][1] = String.valueOf(newPrice);
		}
				
	}
	
	
	static void initializer(){
		System.out.println("Initial data for store:");
		addToStore("Duck",5);  changePrice("Duck",30);
		addToStore("Eagle",3);  changePrice("Eagle",40);
		addToStore("Parrot",8);  changePrice("Parrot",20);
		addToStore("Chiken",2);  changePrice("Chiken",10);
		addToStore("Pinguine",6);  changePrice("Pinguine",50);
		addToStore("Parrot",2);
		addToStore("Chiken",8);		
		printStore(0);
		System.out.println();
		System.out.println("Change price for Duck (set 25):");
		changePrice("Duck",25);
		printStore(0);
		
		System.out.println();
		System.out.println("Initial data for sales:");
		System.out.println(makeSale("Duck",2,20150604));
		System.out.println(makeSale("Duck",3,20150605));
		System.out.println(makeSale("Duck",1,20150606));
		System.out.println(makeSale("Pinguine",1,20150707));
		System.out.println(makeSale("dfgerkguerg",10,20150808));	
		
		System.out.println();
		System.out.println("Printing all store:");		
		printStore(0);
		System.out.println();
		System.out.println("Printing all sales:");
		printSales();	
		System.out.println();
		
	}
	
	
	static void printStore(int lessThen) {
		for (int i = 0; i < storeLength; i++) {
			if (lessThen == 0 || Integer.valueOf(store[i][2]) < lessThen) {
				System.out.println(store[i][0] + "    " + store[i][1] + "    " + store[i][2]);
			}
		}
	}
	
	static void printSales(){
		for (int i = 0; i < salesLength;i++){
			System.out.println(sales[i][0] + "    "+ sales[i][1] + "    " + sales[i][2]  + "    " + sales[i][3]);				
			}
	}
	
	static String makeSale(String birdName, int amount, int date){
		int i = getBirdId(birdName);
		if (i>=0) {
			if (Integer.valueOf(store[i][2])>=amount){
				store[i][2]=String.valueOf(Integer.valueOf(store[i][2])-amount);
				
				sales[salesLength][0] = String.valueOf(date);
				sales[salesLength][1] = birdName;
				sales[salesLength][2] = String.valueOf(amount);
				sales[salesLength][3] = String.valueOf(Integer.valueOf(store[i][1])*amount);
				salesLength++;
				
				return amount + " " + birdName + " was saled successfuly." ;
			}	else {
				return "Not anought " + birdName + "s in the store. Sale cancelled!";
			}
		}		
		return "Unknown bird name: " + birdName + ".";
		
	}
	
	static int totalBirdSaled(){
		int sum = 0;
		for (int i = 0; i < salesLength;i++){			
			sum += Integer.valueOf(sales[i][2]);				
			} 		
		return sum;
	}
	
	static int birdAmount(String birdName){
		int i = getBirdId(birdName);
		if (i>=0) {
			return Integer.valueOf(store[i][2]);
		}

		return 0;
	}
	
	static int totalIncome(){
		int sum = 0;
		for (int i = 0; i < salesLength;i++){			
			sum += Integer.valueOf(sales[i][3]);				
			}				
		return sum;
	}
	
	static long monthIncome(int month){
		long income = 0;
		
		for (int i = 0; i<salesLength; i++){
			long temp = Integer.valueOf(sales[i][0])/100;
			if (temp%100 == month){
				income += Integer.valueOf(sales[i][3]);
			}
		}
		
		return income;
	}
	
	
}