fix(recommendations): parseMemoryDBDetails uses rec fields, errors loudly on empty (closes #378)

[cristim]

Hand-off PR for partially-completed work from a sub-agent that hit a usage cap. parseMemoryDBDetails previously hardcoded db.r6gd.xlarge / redis, silently failing every non-default MemoryDB RI purchase. Single commit makes it read rec.ResourceType and error loudly when empty. \n\nCloses #378.

Summary by CodeRabbit

Release Notes

• Bug Fixes
  • Improved validation and data population for AWS MemoryDB resource recommendations to ensure accuracy of cost optimization recommendation details.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 31e52677-5148-4bdb-9c9a-a96d10277803

📥 Commits

Reviewing files that changed from the base of the PR and between b1ea4b1 and 9bf91d0.

📒 Files selected for processing (2)

• providers/aws/recommendations/parser_services.go
• providers/aws/recommendations/parser_services_test.go

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📝 Walkthrough

Walkthrough

parseMemoryDBDetails is refactored to validate rec.ResourceType presence and populate cache details from the recommendation object instead of relying on hardcoded defaults. The log import is removed, and the test is expanded to cover error and success scenarios.

Changes

MemoryDB Detail Parsing

Layer / File(s)	Summary
parseMemoryDBDetails validation and details extraction providers/aws/recommendations/parser_services.go, providers/aws/recommendations/parser_services_test.go	parseMemoryDBDetails removes the log import, validates rec.ResourceType is non-empty (returning error if absent), and sets rec.Details to common.CacheDetails with Engine: "redis" and NodeType from rec.ResourceType. Test is rewritten with three subtests covering empty ResourceType error case and successful detail extraction for db.r6g.large and db.r6gd.xlarge instance types.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~15 minutes

Poem

🐰 A MemoryDB hopper once chose,
One hardcoded node, heaven knows—
Now validation rings true,
ResourceType guides what to do,
No more silent fails in the prose! 🎉

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main change: fixing parseMemoryDBDetails to use rec fields and error when empty, addressing issue #378.
Linked Issues check	✅ Passed	The changes fully satisfy #378 requirements: parseMemoryDBDetails now validates rec.ResourceType is non-empty, returns an error when missing, and populates CacheDetails with correct Engine and NodeType values.
Out of Scope Changes check	✅ Passed	All changes are directly scoped to fixing parseMemoryDBDetails and its test; no unrelated modifications are present.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/378-memorydb-parse

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[cristim]

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[cristim]

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