//----------------------------------------------------
//  Programming Assignment #3: VWC Stone Mart        -
//  Written By: Jared Justice                        - 
//  Due Date: October 22, 2008                       -
//                                                   -
//  Purpose: To determine the total costs of         -
//           purchased materials. Also to calculate  -
//           the amount of sales throughtout the day.-
//----------------------------------------------------

// Preprocessor directives

#include <iostream> 
#include <iomanip>   
#include <fstream>
using namespace std;

// Main function

int main()
{

// --- Declare variables here

 int
  distance,            // distance of delivery
  totorders = 0,       // total count of orders
  readymorders = 0,    // number of ready-mix orders
  rockorders = 0,      // number of rock and gravel orders
  sandorders = 0,      // number of sand orders
  topsoilorders = 0,  // number of topsoil orders
  rejectorders = 0,    // number of rejected orders
  amtordered;          // amount of materials ordered

 float
  unitcost,            // cost of materials
  totalcharg =0,          // sum of total charges
  salestax,            // sales tax
  delivcost,           // cost of the delivery
  costmats,            // cost of the materials  
  maxcharge,           // maximum charge
  mincharge,           // minimum charge
  total;               // total of charges

 char
  dummych,             // skips blank in column 2
  classch,             // the class type
  productch;           // the product type


 bool
   errorincodes;       // false if codes okay, true if either code invalid

// --- Output report headings here

   cout << "\n ----------------------------------------------------------------------------------------------- ";
   cout << "\n                                   VWC Stone Mart, Inc.                                      ";
   cout << "\n\n                                    Order Summary                                          ";
   cout << "\n ----------------------------------------------------------------------------------------------- ";
   cout << "\nProduct   Class   Amount    Distance      Cost Of      Cost Of         Sales Tax          Total";
   cout << "\n                                          Mateials     Delivery            ";




// --- Set numeric formatting for detail lines

   cout << fixed << setprecision(2);     

// --- Initialize counters, summary variables here

   mincharge = 1e29;
   maxcharge = 0;


// --- Prime loop with first input value
   cin >> productch;

// --- Processing loop - stops when product code is sentinel 'Z'
 
  while (productch != 'Z')
  {
     cin.get(dummych);               // skip blank in column 2
     cin.get(classch);               // get char in column 3, even if blank
     cin >> amtordered >> distance;  // remainder of input in normal fashion
     errorincodes = false;           // set flag - no error found yet!
     totorders++;

   // --- switch statements to validate codes, set unit cost and count product types go here
      switch (productch)
       {
    	 case 'C': switch (classch)
              {
              case ' ':     unitcost = 52.60;
                            readymorders++;
                            break;
              default:      errorincodes = true;
                            break;
              }
              break;
         case 'R': switch (classch)
              {
              case 'C':     unitcost = 22.25;
                            rockorders++;
                            break;
              case 'G':     unitcost = 16.50;
                            rockorders++;
                            break;
              case 'D':     unitcost = 35.00;
                            rockorders++;
                            break;
              default:      errorincodes = true;
                            break;
              }
              break;
         case 'S': switch (classch)
              {
              case ' ':     unitcost = 4.35;
                            sandorders++;
                            break;
              default:      errorincodes = true;
                            break;
              }
              break;
         case 'T': switch (classch)
              {
              case 'A':     unitcost = 8.25;
                            topsoilorders++;
                            break;
              case 'B':     unitcost = 6.50;
                            topsoilorders++;
                            break;
              case 'C':     unitcost = 5.40;
                            topsoilorders++;
                            break;
              default:      errorincodes = true;
                            break; 
              }
              break;
         }


    
   // --- now handle detail line

   if (errorincodes)  // codes invalid - no calcs necessary - detail line with error mesg
   {  
         rejectorders++;
         cout << "\n\n" << setw(4) << productch << "\t" << setw(4) << classch << "\t " << setw(4);
         cout << amtordered << "\t " << setw(4) << distance;
         cout << "\t********************* Error ****************************";
         cout << endl;
   }
   else               // codes valid - calcs, collect summary data, normal detail line
   {
    
         costmats = (amtordered * unitcost);
         costmats = static_cast<int>(costmats * 100 + .5)/100.0;

         salestax = costmats * 0.05;
         salestax = static_cast<int>(salestax * 100 + .5)/100.0;
    
    
         if (distance < 5)
             delivcost = costmats * 0.015;
         else if (distance < 15)
             delivcost = costmats * 0.020;
         else if (distance >= 15)
             delivcost = costmats * 0.025;

         delivcost = static_cast<int>(delivcost * 100 + .5)/100.0;

         total = costmats + delivcost + salestax;
         totalcharg += total;
    
         if(total > maxcharge)
              maxcharge = total;
         if(total < mincharge)
              mincharge = total; 



       cout << endl;
       cout << "  " << setw(2) << productch << " \t  " << setw(2) << classch << " \t   " << setw(2);
       cout << amtordered << " \t   " << setw(2) << distance;
       cout << "   \t $  " << setw(5) << costmats << " \t$ " << setw(5) << delivcost << "  \t$  " << setw(5); 
       cout <<salestax << "  \t$" << setw(7) << total; 
       cout << endl;

    }   // end of else 
  cin >> productch;  // get next product code

 }  // end of processing while loop

// --- Now display summary statistics 

   cout << "\n";
   cout << "\n          Summary";
   cout << "\n\n";
   cout << " Total Number of Orders:     " << totorders;
   cout << "\n Ready-Mix Concrete:       " << readymorders;
   cout << "\n Rock and Gravel:          " << rockorders;
   cout << "\n Sand:                     " << sandorders; 
   cout << "\n Topsoil:                  " << topsoilorders;
   cout << "\n Rejected:                 " << rejectorders;
   cout << endl;
   cout << endl;
   cout << " Total Charges:         $" << setw(5) << totalcharg;
   cout << "\n Minimum Charge:        $" << setw(6) << mincharge;
   cout << "\n Maximum Charge:        $" << setw(5) << maxcharge;
   

return 0;

}