Write a C++ program to perform grocery check-out procedure for a simple store with max 100 products. You can use a few parallel arrays to implement this program.
When the program starts, it should read the product information file (inventory.txt - create it using the data below) - it contains product information (PLU code, product name, product sales type, price per pound or price per unit & current inventory level) - one product in each line.
4101 BRAEBURN_REG 1 0.99 101.5
4021 DELICIOUS_GDN_REG 1 0.89 94.2
4020 DELICIOUS_GLDN_LG 1 1.09 84.2
4015 DELICIOUS_RED_REG 1 1.19 75.3
4016 DELICIOUS_RED_LG 1 1.29 45.6
4167 DELICIOUS_RED_SM 1 0.89 35.4
4124 EMPIRE 1 1.14 145.2
4129 FUJI_REG 1 1.05 154.5
4131 FUJI_X-LGE 1 1.25 164.1
4135 GALA_LGE 1 1.35 187.7
4133 GALA_REG 1 1.45 145.2
4139 GRANNY_SMITH_REG 1 1.39 198.2
4017 GRANNY_SMITH_LGE 1 1.49 176.5
3115 PEACHES 1 2.09 145.5
4011 BANANAS 1 0.49 123.2
4383 MINNEOLAS 1 0.79 187.3
3144 TANGERINES 1 1.19 135.5
4028 STRAWBERRIES_PINT 0 0.99 104
4252 STRAWBERRIES_HALF_CASE 0 3.99 53
4249 STRAWBERRIES_FULL_CASE 0 7.49 67
4011 BANANAS 1 0.69 156.7
94011 ORGANIC_BANANAS 1 0.99 56.3
Then, program should repeatedly invoke customer check-out functionality until the store associate (user) decides to quit. As part of checkout functionality, prompt for PLU code, validate it, then the user to input weight for each product if it is sold by weight, or # of units if sold by unit. Compute the price of the item and keep up the subtotal. Once all purchased products are rung for a customer, output the total purchase amount. If the total purchase exceeds $50, apply 5% discount to the total. Keep the checkout functionality in a separate method.
We need to keep track of inventories automatically as well. So, keep updating the inventory data along with checkout operations. When the store closes every day, product information file should be saved in output.txt in the same format as input inventory file.