inventorym/Ui/src/main/java/edu/inventorym/ApiController.java

/**
 * license: GPLv3
 edu.inventorym
*/
package edu.inventorym;

import java.time.ZonedDateTime;

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import edu.inventorym.model.Customer;
import edu.inventorym.model.CustomerManager;
import edu.inventorym.model.Drawing;
import edu.inventorym.model.InventoryList;
import edu.inventorym.model.InventoryManager;
import edu.inventorym.model.InventoryPiece;
import edu.inventorym.model.Painting;
import edu.inventorym.model.Print;
import edu.inventorym.model.Sculpture;
import edu.inventorym.model.Transaction;
import edu.inventorym.model.TransactionList;
import edu.inventorym.model.TransactionManager;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.responses.ApiResponse;

@RestController
@RequestMapping("/api")
public class ApiController { // SINGLETON

    @Operation(summary = "Get status Inventory Loaded", description = "Returns status Inventory Loaded.")
    @ApiResponse(responseCode = "200", description = "loaded")
    @GetMapping
    public static ResponseEntity<String> getInventory() {
        /* Inventory pieces */
        InventoryManager.getInstance().load();
        if (InventoryManager.getInstance().INVENTORY.isEmpty()) {
            /* Add Inventory */
            InventoryManager.getInstance().add(make(new Drawing()));
            InventoryManager.getInstance().add(make(new Print()));
            InventoryManager.getInstance().add(make(new Painting()));
            InventoryManager.getInstance().add(make(new Sculpture()));
            InventoryManager.getInstance().add(make(new Sculpture()));
            InventoryManager.getInstance().add(make(new Sculpture()));

            InventoryManager.getInstance().save();
        }

        /* Customers */
        CustomerManager.getInstance().load();
        if (CustomerManager.getInstance().CUSTOMERS.isEmpty()) {
            /* Add Customer */
            CustomerManager.getInstance().add(new Customer("Kate", "Demsey", "310-676-4844", "kate@museum.com"));
            CustomerManager.getInstance().add(new Customer("Jim", "Gumbly", "203-676-4844", "jim@homedeco.com"));
            CustomerManager.getInstance().add(new Customer("Evan", "Hao", "203-676-8943", "evan@homedeco.com"));

            /* Update Customer List */
            CustomerManager.getInstance().save();

            InventoryList customerCart = new InventoryList();
            customerCart.add(InventoryManager.getInstance().INVENTORY.getFirst());
            customerCart.add(InventoryManager.getInstance().INVENTORY.getLast());

            enterTransaction(CustomerManager.getInstance().findByEmail("kate@museum.com"), customerCart);
        }

        InventoryManager imgr = InventoryManager.getInstance();
        
        return new ResponseEntity<>("Resource loaded! \n" + String.format("Art Pieces in INVENTORY: count %d", imgr.INVENTORY.size())
        , HttpStatus.OK);
    }

    static void enterTransaction(Customer customer, InventoryList customerCart){

        TransactionManager tmgr = TransactionManager.getInstance();
        tmgr.load();
        /*
         * 3. Add a new transaction object to the list manager is handling
         */
        Transaction tran = tmgr.TransactRequest(customer, customerCart);
        /*
         * 4. Calculate and return transaction price
         * 5. Complete transaction
         
         */
        tmgr.compute(tran);
        tmgr.complete(tran);
        /*
         * 9. Update inventory file(s) on local system
         */
        InventoryManager.getInstance().save();
        /*
         * 10. Update transaction file(s) on local system
         */
        TransactionManager.getInstance().save();
    }

    static void callerInterface() {
        // @Comment
        /*
         * 1. Add new art object to the inventory. Your manager must check that the art
         * is not already in the inventory before adding
         */

        /*
         * 2. Remove art object from the inventory
         */
        InventoryManager imgr = InventoryManager.getInstance();
        System.out.println(String.format("Art Pieces in INVENTORY: count %d", imgr.INVENTORY.size()));
        InventoryPiece art = imgr.INVENTORY.getLast();
        InventoryPiece piece = imgr.find(art.getId());
        imgr.Remove(piece);
        imgr.save();
        System.out.println(String.format("Removed 1 Art Pieces from INVENTORY: count %d", imgr.INVENTORY.size()));
        /*
         * 3. Return a list of all art objects from inventory
         */
        System.out.println("============= Inventory List ===============");
        imgr.INVENTORY.forEach(System.out::println);
        System.out.println("\n");

        if (imgr.INVENTORY.isEmpty()) {
            System.out.println(String.format("%s: No Inventoried Art Piecies Available !!!. ", ApiController.class));
            return;
        }

        Transaction tran = null;
        TransactionManager tmgr = null;

        //* 6. Remove transaction object
        // tmgr.remove(tran);
        /*
         * 7. Format and return transaction data in print format
         */
        System.out.println(tran);
        /*
         * 8. Retrieve and return transactions based on:
         * customer email
         */
        Customer customer = CustomerManager.getInstance().findByEmail("kate@museum.com");
        TransactionList foundTrans = tmgr.findByCustomerEmail(customer.getEmail());
        /*
         * transaction date
         */
        foundTrans = tmgr.findByTransactionDate(tran.getCompleted());
        /*
         * transaction id
         */
        foundTrans = tmgr.findByTransactionId(tran.getId());
        /*
         * art id
         */
        foundTrans = tmgr.findByTransactionId(tran.getId());
    }

    static Drawing make(Drawing o) {
        o.setTitle("Windy Rowing");
        o.setDescription("East Market Square find. Local Author.");
        o.setAuthor("Dave Janson");
        o.setPrice(92.0f);
        o.setCreated(ZonedDateTime.now());
        return o;
    }

    static Painting make(Painting o) {
        o.setTitle("Walking by the beach.");
        o.setDescription("East Market Square find. Local Author.");
        o.setAuthor("Dave Janson");
        o.setPrice(51.0f);
        o.setCreated(ZonedDateTime.now());
        return o;
    }

    static Print make(Print o) {
        o.setTitle("Different day same thing");
        o.setDescription("East Market Square find. Local Author.");
        o.setAuthor("Dave Janson");
        o.setPrice(102.0f);
        o.setCreated(ZonedDateTime.now());
        return o;
    }

    static Sculpture make(Sculpture o) {
        o.setTitle("Jolly Romp");
        o.setDescription("East Market Square find. Local Author.");
        o.setAuthor("Dave Janson");
        o.setPrice(32.0f);
        o.setWeight(4.0F);
        o.setCreated(ZonedDateTime.now());
        return o;
    }
}