#include "inventory.h"

void inventory( istream& in, ostream& out )
{
    Widget myWidget[25];
    int count;
    readwidget( in, myWidget, count);
    string command;
    in >> command;
    while (!in.fail() )
    {
        out << "Command: " << command << endl;
        if (command == "list")
        {
            list( in, out, myWidget, count);
        }
        else if (command == "add")
        {

            add( in, out, myWidget, count );
        }
        else if (command == "buy")
        {
            buy(in, out, myWidget, count );
        }
        else
        {
            save( in, out, myWidget, count );
        }
        in >> command;
    }
}


void readwidget( istream& in2, Widget myWidget[], int &count )
{
    in2.ignore( 200, ':');
    string filename;
    in2 >> filename;
    ifstream in(filename.c_str() );
    Widget widgetdata;
    count = 0;
    in.ignore( 200, ':' );
    in >> widgetdata.name; //read the name of the widget
    in.ignore( 200, ':' );
    getline( in, widgetdata.description); //read the description of the widget
    in.ignore( 200, ':' );
    in >> widgetdata.part;
    in.ignore( 200, '$' );
    in >> widgetdata.cost;
    in.ignore( 200, ':' );
    in >> widgetdata.quantity;

    while ( !in.fail() && count < 25)
    {
        myWidget[count] = widgetdata;
        count++;
        in.ignore( 200, ':' );
        in >> widgetdata.name; //read the name of the widget
        in.ignore( 200, ':' );
        getline( in, widgetdata.description); //read the description of the widget
        in.ignore( 200, ':' );
        in >> widgetdata.part;
        in.ignore( 200, '$' );
        in >> widgetdata.cost;
        in.ignore( 200, ':' );
        in >> widgetdata.quantity;
    }
}


void list( istream& in, ostream& out, Widget myWidget[], int count)
{
    char c;
    c = in.peek();
    if ( c == '\n' )
    {
        for ( int i = 0; i < count; i++)
        {
            out << "Widget: " << myWidget[i].name << endl;
            out << "Description: " << myWidget[i].description << endl;
            out << "Part #: " << myWidget[i].part << endl;
            out << "Cost: $" << myWidget[i].cost << endl;
            out << "Quantity: " << myWidget[i].quantity << endl;
        }
    }
    else
    {
        string partnumber;
        in >> partnumber;
        bool found = false;
        for ( int i=0; i<count; i++ )
        {
            if (myWidget[i].part == partnumber )
            {
                found = true;
                out << "Widget: " << myWidget[i].name << endl;
                out << "Description: " << myWidget[i].description << endl;
                out << "Part #: " << myWidget[i].part << endl;
                out << "Cost: $" << myWidget[i].cost << endl;
                out << "Quantity: " << myWidget[i].quantity << endl;
                break;
            }

        }
        if (!found)
            {
                out << "Sorry, we don't have " << partnumber << " in stock" << endl;
            }
    }
}

void save( istream& in, ostream& out, Widget myWidget[], int count )
{
    string file;
    in >> file;
    ofstream myfile (file.c_str() );
    for ( int i = 0; i < count; i++)
    {
        myfile << "Widget: " << myWidget[i].name << endl;
        myfile << "Description: " << myWidget[i].description << endl;
        myfile << "Part #: " << myWidget[i].part << endl;
        myfile << "Cost: $" << myWidget[i].cost << endl;
        myfile << "Quantity: " << myWidget[i].quantity << endl;
    }
    myfile.close();
}


void add( istream& in, ostream& out, Widget myWidget[], int &count )
{
    Widget widgetdata;
    bool found = false; // declare a boolian variable as false
    in.ignore( 200, ':' );
    in >> widgetdata.name; //read the name of the widget
    in.ignore( 200, ':' );
    getline( in, widgetdata.description); //read the description of the widget
    in.ignore( 200, ':' );
    in >> widgetdata.part; // read in the part number of the widget
    in.ignore( 200, '$' );
    in >> widgetdata.cost; // read in the cost of the widget (as a double)
    in.ignore( 200, ':' );
    in >> widgetdata.quantity; // read in the quantity of the widget

    for ( int i=0; i<count; i++ )
    {
        if (myWidget[i].part == widgetdata.part ) // if the part already exists
        {
            found = true; // if the part matches make the boolian true
            myWidget[i].quantity = myWidget[i].quantity + widgetdata.quantity;
            break; // break the loop once the part is found
        }

    }
    if (!found)
    {
        myWidget[count] = widgetdata;
        count++;
    }
}



void buy( istream& in, ostream& out, Widget myWidget[], int count )
{
    in.ignore( 10, ';' );
    string partnumber;
    int amount;
    in >> partnumber;
    in >> amount;

}