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Copy pathExpenseReport.st
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ExpenseReport.st
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#!/usr/bin/gst -f
Object subclass: Expense [
| type amount |
Expense class >> type: type amount: amount [
^self new type: type; amount: amount; yourself
]
type [ ^type ]
type: value [ type := value ]
amount [ ^amount ]
amount: value [ amount := value ]
]
Object subclass: ExpenseReport [
printReport: htmlMode expenses: expenses [
| mealExpenses total |
mealExpenses := 0.
total := 0.
(htmlMode)
ifTrue: [
'<!DOCTYPE html>' displayNl.
'<html lang="en">' displayNl.
'<head>' displayNl.
'<title>Expense Report ' display.
Date dateAndTimeNow display.
'</title>' displayNl.
'</head>' displayNl.
'<body>' displayNl.
'<h1>Expense Report ' display.
Date dateAndTimeNow display.
'</h1>' displayNl.
'<table>' displayNl.
'<thead>' displayNl.
'<tr><th scope="col">Type</th><th scope="col">Amount</th><th scope="col">Over Limit</th></tr>' displayNl.
'</thead>' displayNl.
'<tbody>' displayNl.
]
ifFalse: [
'Expense Report' display.
Date dateAndTimeNow displayNl.
].
expenses do:[:expense |
| expenseName mealOverExpensesMarker |
((expense type = 'Dinner') | (expense type = 'Breakfast'))
ifTrue: [ mealExpenses := mealExpenses + expense amount ].
(expense type = 'Dinner') ifTrue: [ expenseName := 'Dinner' ].
(expense type = 'Breakfast') ifTrue: [ expenseName := 'Breakfast' ].
(expense type = 'Car Rental') ifTrue: [ expenseName := 'Car Rental' ].
(((expense type = 'Dinner') & (expense amount > 5000)) | ((expense type = 'Breakfast') & (expense amount > 1000)))
ifTrue: [ mealOverExpensesMarker := 'X' ]
ifFalse: [ mealOverExpensesMarker := ' ' ].
(htmlMode)
ifTrue: [
'<tr><td>' display.
expenseName display.
'</td><td>' display.
expense amount display.
'</td><td>' display.
mealOverExpensesMarker display.
'</td></tr>' displayNl.
]
ifFalse: [
expenseName display.
Character tab asString display.
expense amount display.
Character tab asString display.
mealOverExpensesMarker displayNl.
].
total := total + expense amount.
].
(htmlMode)
ifTrue: [
'</tbody>' displayNl.
'</table>' displayNl.
'<p>Meals: ' display.
mealExpenses display.
'</p>' displayNl.
'<p>Total: ' display.
total display.
'</p>' displayNl.
'</body>' displayNl.
'</html>' displayNl.
]
ifFalse: [
'Meals: ' display.
mealExpenses displayNl.
'Total: ' display.
total displayNl.
].
]
]
expenseReport := ExpenseReport new.
expenses := Set new.
expense1 := Expense type: 'Dinner' amount: 5000.
expense2 := Expense type: 'Dinner' amount: 5001.
expense3 := Expense type: 'Breakfast' amount: 1000.
expense4 := Expense type: 'Breakfast' amount: 1001.
expense5 := Expense type: 'Car Rental' amount: 4.
expenses add: expense1.
expenses add: expense2.
expenses add: expense3.
expenses add: expense4.
expenses add: expense5.
expenseReport printReport: true expenses: expenses.