/**********************************
 * Assignment 1
 * Date: 6-26-2006
 * Bryant Yung
 **********************************/

import java.math.*;
import java.io.*;
import java.util.*;

public class Orders {
  protected String[] months=new String[12];
  protected double[] monarray=new double[12];
  protected double total;
  private String monmax, monmin;
  private String file = null, line;

/**********************************
 * Constructor
 * Sets filepath
 * Assigns Each Month String to Months Array
 **********************************/

  public Orders() {
    file="Orders.csv";
    months[0]="Jan";
    months[1]="Feb";
    months[2]="Mar";
    months[3]="Apr";
    months[4]="May";
    months[5]="Jun";
    months[6]="Jul";
    months[7]="Aug";
    months[8]="Sep";
    months[9]="Oct";
    months[10]="Nov";
    months[11]="Dec";
  } // end of constructor

/**********************************
 * Process
 * Reads into file
 * Adds Freight values according to months in year 97 and stores in array monarray
 * Assigns Total Value of all Freight for year 97
 **********************************/

  public void Process() throws IOException {
    double freight;
    int date;
    String reqyear="97";
    String[] columninfo=new String[14];
    String[] dateinfo=new String[3];
    BufferedReader buf=null;
    buf=new BufferedReader(new FileReader(file));
    String line=buf.readLine();
    String nextline=buf.readLine();
    while(nextline != null)
    {
	  line=nextline;
	  nextline=buf.readLine();
      columninfo=line.split(",");
      dateinfo=columninfo[3].split("-");
      String year=new String(dateinfo[2]);
      if(year.compareTo(reqyear)==0) {         // to see if order in year 97
      	date=findmonth(dateinfo[1]);
        String freightcheck=new String(columninfo[7]);
        char[] valuecheck=freightcheck.toCharArray();
        Character quotation=new Character('\"');
        if(quotation.compareTo(valuecheck[0])==0) {  // checks if value is over 999.99, and
			String value=columninfo[7]+columninfo[8];// a quotation is used
			String[] solvedvalue=new String[3];      // if so solves for correct freight value
			solvedvalue=value.split("\"");
			freight=Double.parseDouble(solvedvalue[1]);  // parse string to double
		} // end of if
		else {
      		freight=Double.parseDouble(columninfo[7]); // parse string to double
		} // end of else
      	for(int x=0; x<12; x++) {
       	 if(x==date) {
       	   this.monarray[x]=this.monarray[x]+freight; // adds freight according to month
      	 } // end if
		}// end for loop
	  } // end if
    } // end while loop
    buf.close();
	monarray=rounder(monarray);  // rounds values to two decimals.
	total=total(monarray);// assigns total, total value of all freight
  } // end Process

/**********************************
 * getmonthinfo
 * getter method to get the monarray arary
 * which holds information for freight total per month
 **********************************/

  public double[] getmonthinfo() {
    return this.monarray;
  } // end of getmonthinfo

/**********************************
 * setorderfile
 * Sets file path to the string which is input
 **********************************/

  public void setorderfile(String s) {
    this.file=s;
  } // end of setorderfile

/**********************************
 * MonMax
 * determines the Month with Maximum value of Freight
 **********************************/

  public String MonMax() {
    double max=0;
    int month=0;
    for(int x=0; x<12; x++) {
      if(monarray[x] > max) {
        max=monarray[x];
        month=x;
      } // end if
    } // end for loop
    monmax=this.months[month];
    return monmax;
  } // end Monmax

/**********************************
 * MonMin
 * Determines the month with minimum value of Freight
 **********************************/

  public String MonMin() {
    double min=monarray[0];
    int month=0;
    for(int x=1; x<12; x++) {
      if(monarray[x] < min) {
        min=monarray[x];
        month=x;
      } // end if
    } // end for loop
    monmin=this.months[month];
    return monmin;
  }// end monmin

/**********************************
 * findmonth
 * returns the int associated with the name of the month
 **********************************/

  private int findmonth(String date) {
    int number=1;
    String year=new String(date);
    for(int x=0; x<12; x++) {
      if(year.compareTo(months[x])==0) {
      //if(date==months[x]) {
        number=x;
        x=12;
      } // end if
    } // end for loop
    return number;
  } // end findmonth

/**********************************
 * rounder
 * method which takes in array of unrounded values
 * and output array of rounded values to two decimals
 **********************************/

  private double[] rounder(double[] array) {
	  for(int x=0; x<array.length; x++) {
		  array[x]=roundtotwodecimals(array[x]);
	  } // end for loop
	  return array;
  } // end of round

/**********************************
 * roundtotwodecimals
 * method which rounds a double value to two decimals
 * and output the rounded value
 **********************************/

  private double roundtotwodecimals(double val) {
	  BigDecimal helper=new BigDecimal(val);
	  helper=helper.movePointRight(2);               // movePointRight method moves decimal place
	  double valchangeplace=helper.doubleValue();    // two spots in order to round to two
 	  valchangeplace=Math.round(valchangeplace);     // decimal places
	  BigDecimal finalval=new BigDecimal(valchangeplace);
	  finalval=finalval.movePointLeft(2);
	  return finalval.doubleValue();
  } // end of roundtotwodecimals

/**********************************
 * total
 * totals all values of a array of double
 * and returns the double value rounded to two decimal places
 **********************************/

  private double total(double[] array) {
	  for(int x=0; x<array.length; x++) {
		  total=total+array[x];
	  } // end of for loop
	  total=roundtotwodecimals(total);
	  return total;
  } // end of total
} // end of Orders