Pipeline controller: plan 2 (hard +, error +50 %), backlog throttle, 2 trajectory workers, stop rules, summaries every 50; budget reserve

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1036/spec.md

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+# 1. Goal
+A riding stable sells riding lessons. A booking program calls the class
+{{P}}RIDE_BOOKING for each booking request. The class checks the request and
+returns the price that one rider pays. The class stops the booking with a
+class-based exception if the request is not correct.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- The interface {{P}}IF_RIDE_BOOKING is in package $TMP. It is active.
+- The interface has these types:
+  TY_DISCIPLINE (character 4), TY_LEVEL (character 1), TY_REASON
+  (character 10), TY_AMOUNT (packed number, length 8, 2 decimal places).
+- The interface has these constants:
+  C_DISCIPLINE: DRESSAGE 'DRES', JUMPING 'SHOW', WESTERN 'WEST',
+  VAULTING 'VOLT'.
+  C_LEVEL: BASIC 'B', LIGHT 'L', MEDIUM 'M', ADVANCED 'S'.
+  C_REASON: NAME 'NAME', DISCIPLINE 'DISCIPLINE', LEVEL 'LEVEL',
+  MINUTES 'MINUTES', RIDERS 'RIDERS', SHOW_LEVEL 'SHOW_LEVEL',
+  VOLT_GROUP 'VOLT_GROUP'.
+- The interface has one method:
+  BOOK IMPORTING iv_rider_name TYPE string
+                iv_discipline TYPE ty_discipline
+                iv_level      TYPE ty_level
+                iv_minutes    TYPE i
+                iv_riders     TYPE i
+       RETURNING VALUE(rv_price) TYPE ty_amount
+       RAISING   {{P}}CX_RIDE_INPUT
+                 {{P}}CX_RIDE_LIMIT.
+- The exception classes {{P}}CX_RIDE_BOOKING, {{P}}CX_RIDE_INPUT and
+  {{P}}CX_RIDE_LIMIT are in package $TMP. They are active.
+- {{P}}CX_RIDE_BOOKING inherits from CX_STATIC_CHECK. It has the type
+  TY_REASON (character 10), the read-only attribute REASON of type TY_REASON
+  and the constructor with the importing parameter IV_REASON of type TY_REASON.
+- {{P}}CX_RIDE_INPUT and {{P}}CX_RIDE_LIMIT inherit from
+  {{P}}CX_RIDE_BOOKING. They add nothing.
+
+# 4. Contract
+- Create the class {{P}}RIDE_BOOKING in package $TMP.
+- The class is public, final, and has a public constructor without parameters.
+- The class implements {{P}}IF_RIDE_BOOKING.
+- Do not add other public methods.
+
+# 5. Business rules
+Apply the rules in this sequence. Raise the exception of the first rule that
+fails.
+1. If the rider name is empty, raise {{P}}CX_RIDE_INPUT with the reason NAME.
+2. The discipline must be DRES, SHOW, WEST or VOLT. Else raise
+   {{P}}CX_RIDE_INPUT with the reason DISCIPLINE.
+3. The level must be B, L, M or S. Else raise {{P}}CX_RIDE_INPUT with the
+   reason LEVEL.
+4. The number of minutes must be 30, 60, 90 or 120. Else raise
+   {{P}}CX_RIDE_INPUT with the reason MINUTES.
+5. The number of riders must be between 1 and 6. Else raise
+   {{P}}CX_RIDE_INPUT with the reason RIDERS.
+6. Show jumping (SHOW) is only for the levels M and S. Else raise
+   {{P}}CX_RIDE_LIMIT with the reason SHOW_LEVEL.
+7. Vaulting (VOLT) is only for a group lesson with 3 or more riders. Else
+   raise {{P}}CX_RIDE_LIMIT with the reason VOLT_GROUP.
+8. Calculate the price that one rider pays:
+   a. The base rate for 30 minutes: DRES 20, SHOW 25, WEST 18, VOLT 15.
+   b. The level surcharge for 30 minutes: B 0, L 2, M 4, S 6.
+   c. The gross price = (base rate + level surcharge) * (minutes / 30).
+   d. The group discount: 1 or 2 riders 0 percent, 3 or 4 riders 20 percent,
+      5 or 6 riders 40 percent.
+   e. The price = gross price * (100 - group discount) / 100.
+
+# 6. Constraints
+- Release target: SAP_BASIS 816 (ABAP Platform 2025).
+- 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_RIDE_BOOKING, {{P}}CX_RIDE_BOOKING,
+  {{P}}CX_RIDE_INPUT and {{P}}CX_RIDE_LIMIT.
+
+# 7. Acceptance
+- The class is active and has no syntax error.
+- The hidden tests pass.
+- Write your own ABAP Unit tests for the class.