SubMiner/docs/architecture/domains.md

Domain Ownership

Status: active Last verified: 2026-07-15 Owner: Kyle Yasuda Read when: you need to find the owner module for a behavior or test surface

Runtime Domains

• Desktop app runtime: src/main.ts, src/main/, src/core/services/
• Overlay renderer: src/renderer/
• Launcher CLI: launcher/
• mpv plugin: plugin/subminer/

Product / Integration Domains

• Config system: src/config/; Anki resolution is composed by src/config/resolve/anki-connect.ts from focused resolvers in src/config/resolve/anki-connect/
• Overlay/window state: src/core/services/overlay-*, src/main/overlay-*.ts
• MPV runtime and protocol: src/core/services/mpv*.ts
• Subtitle/token pipeline: src/core/services/subtitle-*.ts, src/core/services/tokenizer*, src/core/services/tokenizer/, src/subsync/
• Anki workflow: src/anki-integration/, src/core/services/anki-jimaku*.ts
• Immersion tracking: src/core/services/immersion-tracker/ Includes stats storage/query schema such as imm_videos, imm_media_art, and imm_youtube_videos for per-video and YouTube-specific library metadata. Library-entry identity aliases and merge recommendations are persisted alongside this schema; the stats HTTP and SPA layers only expose and present those domain decisions. delete-maintenance-scheduler.ts coalesces and serializes stats deletes; the expensive work runs in delete-maintenance-worker-thread.ts while the tracker queues playback writes. Each batch uses one transaction, lexical update, rollup refresh, and incremental lifetime subtraction (planLifetimeRemovals/applyLifetimeRemovals in lifetime.ts). Merges, moves, AniList reassignments, and stats cleanup -l use repairLifetimeSummariesFromMedia (recompute from the per-video media ledger). The full lifetime rebuild survives only as the empty-table bootstrap; anywhere else it would collapse lifetime totals to the session retention window.
• AniList tracking + character dictionary: src/core/services/anilist/, src/main/runtime/composers/anilist-*, src/main/character-dictionary-runtime.ts, src/main/character-dictionary-runtime/
• Jellyfin integration: src/core/services/jellyfin*.ts, src/main/runtime/composers/jellyfin-*
• Window trackers: src/window-trackers/
• Stats HTTP app: src/core/services/stats-server.ts, with route groups and shared route support in src/core/services/stats-server/
• Stats SPA: stats/
• Public docs site: docs-site/

Shared Contract Entry Points

The subtitle sidebar consumes parsed cues through SubtitleSidebarSnapshot. Its sourceKey identifies the media and subtitle source so renderer selections are invalidated on source changes, including changes whose cue text and timings are identical. Native selection and clean clipboard serialization live in src/renderer/modals/subtitle-sidebar-selection.ts. Electron lets standard Copy input reach the renderer, where sidebar selection takes priority over the live-subtitle binding. The preload bridge writes selections through Electron's clipboard API so copying does not depend on Chromium document focus or require activating the overlay window.

• Config + app-state contracts: src/types/config.ts
• Subtitle/token/media annotation contracts: src/types/subtitle.ts
• Runtime/window/controller/Electron bridge contracts: src/types/runtime.ts
• Anki-specific contracts: src/types/anki.ts
• External integration contracts: src/types/integrations.ts
• Runtime-option contracts: src/types/runtime-options.ts
• Settings UI contracts: src/types/settings.ts
• Session-binding contracts: src/types/session-bindings.ts
• Stats HTTP wire contracts: src/types/stats-wire.ts, src/types/stats-http-contract.ts
• Compatibility-only barrel: src/types.ts

Ownership Heuristics

• Runtime wiring or dependency setup: start in src/main/
• Business logic or service behavior: start in src/core/services/
• UI interaction or overlay DOM behavior: start in src/renderer/
• Command parsing or mpv launch flow: start in launcher/
• Shared contract changes: add or edit the narrowest src/types/<domain>.ts entrypoint; only touch src/types.ts for compatibility exports.
• User-facing docs: docs-site/
• Internal process/docs: docs/