# 1. Goal
The order desk of a florist prices bouquet orders. The shop counter, the web
shop and the telephone desk must all use the same contract. Create the interface
{{P}}IF_BOUQUET_PRICING in package $TMP. The interface fixes the types, the
constants and the methods of the contract.

# 2. Open questions
None.

# 3. Context
- The interface {{P}}IF_BOUQUET_PRICING does not exist yet.
- The interface is in package $TMP.
- Every pricing module of the florist implements this interface. The pricing
  modules are not part of this task.
- The hidden tests use a class that implements the interface. That class only
  compiles when every type, every constant and every method signature matches.

# 4. Contract
- Create the interface {{P}}IF_BOUQUET_PRICING in package $TMP.
- The interface is global and public.
- The interface contains the types, the constants and the methods of section 5.
- Do not add other components to the interface.

# 5. Business rules
## 5.1 Types
The interface defines these five types.
| Type | Definition |
| --- | --- |
| ty_size | TYPE c LENGTH 1 |
| ty_zone | TYPE c LENGTH 2 |
| ty_reason | TYPE c LENGTH 12 |
| ty_amount | TYPE p LENGTH 8 DECIMALS 2 |
| ty_stems | TYPE i |

## 5.2 Constants
The interface defines these five constant structures.

c_size has the type ty_size. The components are:
- small = 'S'. A small bouquet.
- medium = 'M'. A medium bouquet.
- large = 'L'. A large bouquet.

c_zone has the type ty_zone. The components are:
- town = 'T1'. A delivery inside the town.
- nearby = 'N1'. A delivery in the near area.
- far = 'F1'. A delivery in the far area.

c_reason has the type ty_reason. The components are:
- ok = 'OK'.
- no_stems = 'NO_STEMS'.
- too_many = 'TOO_MANY'.
- bad_size = 'BAD_SIZE'.
- bad_zone = 'BAD_ZONE'.

c_limit has the type ty_stems. The components are:
- min_stems = 5.
- max_stems = 60.

c_fee has the type ty_amount. The components are:
- vase = '4.50'. The fee for a vase.
- town = '0.00'. The delivery fee inside the town.
- nearby = '6.00'. The delivery fee in the near area.
- far = '12.00'. The delivery fee in the far area.

## 5.3 Methods
The interface defines these three methods.

1. check_order
   IMPORTING iv_size TYPE ty_size
             iv_stems TYPE ty_stems
             iv_zone TYPE ty_zone
   RETURNING VALUE(rv_reason) TYPE ty_reason.

2. delivery_fee
   IMPORTING iv_zone TYPE ty_zone
   RETURNING VALUE(rv_fee) TYPE ty_amount.

3. bouquet_price
   IMPORTING iv_size TYPE ty_size
             iv_stems TYPE ty_stems
             iv_vase TYPE abap_bool
   RETURNING VALUE(rv_price) TYPE ty_amount.

# 6. Constraints
- Release target: 7.58.
- Coding standards: Clean ABAP. No comment that restates the code.
- Out of scope: no other repository object. Do not change other objects of
  package $TMP.

# 7. Acceptance
- The interface {{P}}IF_BOUQUET_PRICING is active and has no syntax error.
- The hidden tests pass.
- Write your own ABAP Unit tests in a global test class in package $TMP.