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truewhile
37 lines
1.4 KiB
Markdown
37 lines
1.4 KiB
Markdown
# Segment Coverage Implementation Plan
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> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.
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**Goal:** IntroDB prewarm + same-season intro propagation + shorter miss TTL + playback-only duration probe (option C).
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**Architecture:** Extend `MediaSegmentService` for merge/propagate/prewarm; add scheduler job `segment_prewarm`; repository queries for candidates and season siblings.
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**Tech Stack:** Go, GORM/SQLite, existing SchedulerService + IntroDB client.
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---
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### Task 1: Negative cache TTL + ledgerFresh tests
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**Files:** `internal/service/media_segment.go`, `internal/service/media_segment_test.go`
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- Change `segmentMissingTTL` to 24h; update tests for fresh/stale miss.
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### Task 2: Playback merge + propagation
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**Files:** `media_segment.go`, `media_segment_repository.go`, `media_repository.go`, tests
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- Constant `PropagatedSource = "propagated"`.
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- `ListForPlayback` merges sources with priority manual > theintrodb > propagated.
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- After successful IntroDB refresh with intro, propagate to same-season siblings (shared `tm_db_id` or `series_id`).
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### Task 3: Prewarm API + scheduler job
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**Files:** `media_segment.go`, `media_segment_repository.go`, `scheduler.go`, `scheduler_segment_jobs.go`, `service_builder.go`, tests
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- `Prewarm(ctx, limit)` rate-limited refreshes.
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- Job `segment_prewarm` every 6h.
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### Task 4: Verify
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- `go test` for affected packages.
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