refactor(database): dry session entry data

[omarluq]

Summary

• centralize zero-value session entry data construction
• reduce boilerplate in session append helpers
• keep session persistence behavior unchanged

Validation

• mise exec -- go test ./internal/database
• mise exec -- task ci
• cr review --agent -t uncommitted --base main (timed out before findings)

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 88ec6ead-2b2d-49f6-b097-a893ab4189fc

📥 Commits

Reviewing files that changed from the base of the PR and between 5cbacdd and 596fa10.

📒 Files selected for processing (1)

• internal/database/session_store.go

🚧 Files skipped from review as they are similar to previous changes (1)

• internal/database/session_store.go

---

📝 Walkthrough

Summary by CodeRabbit

• Refactor
  • Reworked how session entry data defaults are created and serialized to ensure consistent default values across all entry types.
  • Centralized default initialization so writes and reads behave uniformly, reducing subtle decoding differences when empty data is encountered.
  • Improves maintainability and predictability of session data handling without changing public interfaces.

Walkthrough

A single-file refactor centralizes EntryDataEntity default initialization in newEntryData() and updates six Append methods plus the decoder to build/initialize payloads from that helper before JSON (un)marshalling.

Changes

EntryDataEntity Default Centralization

Layer / File(s)	Summary
Central default factory internal/database/session_store.go	New newEntryData() helper returns an EntryDataEntity with all fields set to Go zero/default values.
Serialize and decode via default factory internal/database/session_store.go	AppendCustomMessage, AppendThinkingLevelChange, AppendCompaction, AppendBranchSummary, AppendLabelChange, AppendSessionInfo now build JSON payloads by calling newEntryData() and setting only relevant fields; dataFromEntry initializes via newEntryData() before unmarshalling.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• omarluq/librecode#15: Related changes to EntryDataEntity/entry metadata fields that interact with session_store's JSON handling.

Poem

🐰 A little helper hopped in place,
Bringing defaults to every case—
No more scattered struct-littered trails,
Each Append now tells the same tales,
Quiet rabbit, tidy pace.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main refactoring change—centralizing session entry data construction through a DRY (Don't Repeat Yourself) approach, which aligns with the file changes shown in the summary.
Description check	✅ Passed	The description is directly related to the changeset, outlining the centralization of zero-value construction, reduction of boilerplate, and validation performed, all consistent with the refactoring work shown.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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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 refactor/database-session-store-dry

---

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.42%. Comparing base (2e9e609) to head (596fa10).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #68      +/-   ##
==========================================
- Coverage   62.64%   62.42%   -0.23%     
==========================================
  Files         188      188              
  Lines       17910    17803     -107     
==========================================
- Hits        11220    11113     -107     
  Misses       5591     5591              
  Partials     1099     1099              

Flag	Coverage Δ
unittests	62.42% <100.00%> (-0.23%)	⬇️

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[coderabbitai]

🧹 Nitpick comments (1)

internal/database/session_store.go (1)

182-203: ⚡ Quick win

Consider simplifying newEntryData() to leverage Go's zero-value initialization.

In Go, the zero value of a struct is automatically initialized when using a struct literal. This function explicitly sets every field to its zero value, which is redundant:

EntryDataEntity{}  // Automatically gives: nil pointers, nil maps, false bools, 0 ints, "" strings

The current implementation increases maintenance burden because every new field added to EntryDataEntity must also be added here, whereas Go's zero-value initialization handles this automatically.

♻️ Proposed simplification

 func newEntryData() EntryDataEntity {
-	return EntryDataEntity{
-		Details:                    nil,
-		Display:                    nil,
-		FromHook:                   false,
-		FirstKeptEntryID:           "",
-		FromID:                     "",
-		Label:                      nil,
-		Name:                       "",
-		TargetID:                   "",
-		ThinkingLevel:              "",
-		ToolName:                   "",
-		ToolStatus:                 "",
-		ToolArgsJSON:               "",
-		TokenEstimate:              0,
-		ModelFacing:                nil,
-		CompactionFirstKeptEntryID: "",
-		CompactionTokensBefore:     0,
-		BranchFromEntryID:          "",
-		TokensBefore:               0,
-	}
+	return EntryDataEntity{}
 }

Or, if the only purpose is DRY and consistency, consider removing newEntryData() entirely and using EntryDataEntity{} directly at each call site, since the zero value is well-understood in Go.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@internal/database/session_store.go` around lines 182 - 203, The newEntryData
function redundantly sets every field of EntryDataEntity to its zero value;
simplify by returning the zero-valued struct directly (i.e., return an
EntryDataEntity{}), or remove newEntryData and replace its call sites with
EntryDataEntity{} to avoid future maintenance when fields are added; update or
remove references to newEntryData accordingly so callers use the zero-value
struct.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@internal/database/session_store.go`:
- Around line 182-203: The newEntryData function redundantly sets every field of
EntryDataEntity to its zero value; simplify by returning the zero-valued struct
directly (i.e., return an EntryDataEntity{}), or remove newEntryData and replace
its call sites with EntryDataEntity{} to avoid future maintenance when fields
are added; update or remove references to newEntryData accordingly so callers
use the zero-value struct.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 0f0f895f-c6e3-4406-97b7-65b78b3f9eaf

📥 Commits

Reviewing files that changed from the base of the PR and between 2e9e609 and 5cbacdd.

📒 Files selected for processing (1)

• internal/database/session_store.go

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud