# Seminar 1

## Thành viên

| MSSV | Họ và tên |
|:-------:|:-------------:|
| 1712764 | Bùi Chí Thanh |
| 1712780 | Hàng Hữu Thế |

## Flow Chart

### Euclide GCD

graph TB
    id0([START])
    id1[INPUT A, B]
    id2(( ))
    id3{B = 0 ?}
    id4{A > B ?}
    id5["B #larr; B - A"]
    id6["A #larr; A - B"]
    id7[PRINT A]
    id8(( ))
    id9([END])
    
    style id8 fill:#000, stroke: black

    id0 --> id1 --> id2 --> id3 -->|no|id4 -->|no|id5 --> id8 --> id2
    id3 -->|yes| id7 --> id9
    id4 -->|yes| id6 -->id8

### Quadratic Equation

graph TB
    id0([START])
    id1[INPUT a, b, c]
    id2{a = 0 ?}
    id3{b = 0 ?}
    id4{c = 0 ?}
    id5[Vô số nghiệm]
    id6[Vô nghiệm]
    id7["x #larr; -c/b"]
    id8["#8710; #larr; b^2 - 4ac"]
    id9{"#8710; #ge; 0 ?"}
    id10{"#8710; = 0 ?"}
    id11["x #larr; -b/2a"]
    id12["x1 #larr; (-b+#radic;#8710;) / (2a) <br/> x2 #larr; (-b-#radic;#8710;) / (2a)"]
    id13["x1 #larr; -b/(2a) + #8520;#radic;(-#8710;) / (2a) <br/> x2 #larr; -b/(2a) - #8520;#radic;(-#8710;) / (2a)"]
    id14([END])

    id0 --> id1 --> id2 --yes--> id3 --yes--> id4 --yes--> id5
    id3 --no--> id7
    id4 --no--> id6
    id2 --no--> id8 --> id9 --yes--> id10 --yes--> id11
    id10 --no--> id12
    id9 --no--> id13

    id5 & id7 & id6 & id11 & id12 & id13 --> id14

## Class Diagram

classDiagram
    class Address {
        street: String
        city: String
        state: String
        zipcode: Int
        enterStreet()
        enterCity()
        enterState()
        enterZipcode()
    }

    class Product {
        productID: Int
        productName: String
        productPrice: Float
        getPrice()
        setPrice()
    }

    class Customer {
        custName: String
        custID: Int
        custPhnum: Int
        purchaseItem()
        requestBill()
        enterCustDetail()
    }

    class PremiumCustomer {
        premiumDiscount: Int
        enterCustDetail()
    }

    class RegularCustomer {
        regularDiscount: Int
        enterCustDetail()
    }

    class PurchaseDetail {
        custID: Int
        quantity: Int
        purchaseDate: Date
        productID: Int
         calculateTotalAmt()
        generatePurchaseList()
    }

    class Discount {
        discountType
        discountValue
        SelectDiscount()
    }

    class Bill {
        payableAmt
        calculatePayableAmt()
        generateBill()
    }

    class PaymentCounter {
        << interface >>
        calculatePayableAmt()
        generateBill()
    }

    Address "1" --* "1" Customer : has
    Product "*" -- "1" Customer : Purchases
    Product -- PurchaseDetail
    PurchaseDetail -- Customer
    Customer <|-- PremiumCustomer
    Customer <|-- RegularCustomer
    Customer o-- Bill : Belongs to
    PurchaseDetail <.. Bill
    PurchaseDetail <.. Discount
    Discount <.. Bill
    Bill ..|> PaymentCounter : Accepts

## Sequence Diagram

sequenceDiagram
    participant Customer
    participant SP as Search Page
    participant SRP as Search Result Page
    participant C as Catalog
    participant SR as Search Results

    Customer ->>+ SP : 1: onSearch(author)
    SP ->> SP : 1.1: validateSearchCriterial()

    alt author entered
        SP ->>+ C : 1.2: searchByAuthor(author)
        C ->>+ SR : 1.2.1: create()
        SR ->>+ SRP : 1.2.1.1: display()
        SRP -->>- SR : return
        SR -->>- C : return
        C -->>- SP : return
    else author not entered
        SP ->> SP : 1.3: displayErrorMessage()
    end
    
    SP -->>- Customer: return

## State Diagram

stateDiagram
    state Transaction {
    sPR: PrintReceipt
    sDM: DispenseMoney
    sAA: AccountActions
    sPR --> [*] :TransactionComplete
    sDM --> [*] :TransactionComplete
    sDM --> sPR
    sAA --> sDM
    sAA --> sPR
    }
    state1: Idle
    state VerifyAccount{
        state VerifyCard{
           cardSubmitted
           redCard
           returnCard
        }
        state5: CardValid
        state6: PinCorrect
        state7: PinInCorrect
        state VerifyPin{
            cardSubmitted
            checkPin
            returnCard
        }
        VerifyCard --> state5:[CardValid]
        state5 --> VerifyPin
        VerifyPin --> state6: [PINValid]
        VerifyPin --> state7: PinCorrect[else]
        state7 --> VerifyPin: [tries< maxTries]/ tries++
        VerifyCard --> Idle: [else]
    } 
    [*] --> state1
    Transaction --> state1
    note right of state1
            [*] (end) --> Idle
            VerifyCard (fault) --> Idle
        end note
    state1 --> VerifyAccount