c program oreder.c

Write the program "order.c" that implements the header file "order.h". Namely, do the following: 1- implement the function read_item. 2- implement the function read_order. 3- implement the function get_menu_item. 4- implement the function calc_total. 5- implement the function save_receipt. 6- implement the function main. Note 1: All arrays must be allocated dynamically. Note 2: Attach the file "order.c" as your answer. Files: order.h , [login to view URL] /* A pizzeria has the following menu each item on the menu has an id, a description, and a price */ struct MenuItem{ int mi_id; char mi_desc[100]; float mi_price; } menu[10] = { {113, "Small cheese pizza", 10.00}, {114, "Medium cheese pizza", 20.00}, {115, "Large cheese pizza", 30.00}, {123, "Small veggi pizza", 10.00}, {124, "Medium veggi pizza", 20.00}, {125, "Large veggi pizza", 30.00}, {311, "6pc chicken wings", 12.00}, {312, "12pc chicken wings", 20.00}, {411, "Garlic bread", 5.00}, {611, "Cola", 2.00} }; /* An order item stores the item's id and quantity */ typedef struct Item{ int item_id; int quantity; } Item; /* An order consistes of the name of the customer, number of ordered items, array of ordered items, the value added tax as a percentage to be applied to the total of the orders, and a delivery fee to be added to total after applyint the tax */ struct Order{ char customer_name[100]; int items_count; Item* items; float vat; float delivery_fees; }; /* read_item reads an order item information from the keyborad and returns a pointer to the read item */ Item* read_item(); /* read_order reads all information of the order from the keyboard and returns a pointer to the read order */ struct Order* read_order(); /* get_menu_item takes a menu item's id and returns a structure contains all details about this item from the menu */ struct MenuItem get_menu_item(int id); /* calc_total takes an order and returns the total amount that should be paid by the customer for this order*/ float calc_total(struct Order* or); /* save_receipt takes a file name fn and an order or and saves the corresponding receitpt to the text file fn in the following format: Welcome: Ahmad Ali ********************************** Item# Description Quantity Price ------------------------------------------------------------------ 115 Large cheese pizza 2 30.00 124 Medium veggi pizza 2 20.00 411 Garlic bread 3 5.00 611 Cola 3 2.00 ------------------------------------------------------------------ VAT: 0.05 Delivery fees: 10.00 ------------------------------------------------------------------ Total: 137.05 */ void save_receipt(char* fn, struct Order* or); /* main function reads an order from the keyboard and saves its receipt to the file "[login to view URL]", you can use the text of the file "[login to view URL]" as a test input */ int main();