abap-llm/tasks_gen/train/G1045/spec.md

1. Goal

A cinema multiplex prices ticket orders. The checkout program calls one class for each order. The class calculates the total price of the order and returns a reason code.

2. Open questions

None.

3. Context

• The interface {{P}}IF_CINEMA_PRICE exists in package $TMP. It is active.
• The interface contains the exact signature of the calculation, the result structure and the reason codes. Read the interface before you start.

4. Contract

• Create the class {{P}}CINEMA_PRICER in package $TMP.
• The class is public and final. It has a public constructor without parameters.
• The class implements {{P}}IF_CINEMA_PRICE.
• Do not add other public methods.

5. Business rules

The caller gives five values: the screen category, the visitor category, the number of tickets, the hour when the show starts, and the loyalty card flag. The calculation returns the total price and a reason code.

Screen categories and the base price of one ticket:

• S (standard): 9.50
• T (three-dimensional): 12.00
• L (large format): 15.00

Visitor categories and the discount on the base price:

• A (adult): 0 percent
• C (child): 30 percent
• S (senior): 40 percent

Check the input in this sequence. Stop at the first invalid value. Return a price of zero and the reason of this value.

1. The screen category must be S, T or L. Else return the reason SCREEN.
2. The visitor category must be A, C or S. Else return the reason VISITOR.
3. The number of tickets must be 1 to 20. Else return the reason QUANTITY.
4. The hour must be 0 to 23. Else return the reason HOUR.

Calculate the price in this sequence: 5. Take the base price of the screen category. 6. Reduce the price of one ticket by the visitor discount. 7. If the hour is 20 or later, add a late-show surcharge of 1.50 to the price of one ticket. 8. Multiply the price of one ticket by the number of tickets. 9. If the number of tickets is 6 or more, reduce the total by 10 percent. 10. If the loyalty card flag is true, reduce the total by 5 percent. 11. Round the total to two decimal places. 12. Return the total and the reason OK.

6. Constraints

• Release target: 8.16.
• Coding standards: Clean ABAP. Method length below 40 statements. No global variables. No comment that restates the code.
• Out of scope: do not change {{P}}IF_CINEMA_PRICE.

7. Acceptance

• The class is active and has no syntax error.
• The hidden tests pass.
• Write your own ABAP Unit tests for the class.