Subsystem 6d — Item Database Calculators pt.4 (Smelting)

Fourth slice of the Item Database subsystem, a faithful mirror of 6a/6b/6c (#28/#29/#30). Ships a smelter-keyed smelting calculator: in-game !smelt <smelter> and Discord /smelt <smelter> list every conversion a smelter performs (input → output, quantity/probability, wood/fuel, time).

Approach

Smelting data is natively keyed by smelter and the same input name appears under different item ids across smelters, so it does not hang off ItemRecord — it gets its own top-level Smelters table resolved by name, exactly like 6c's RaidTargets. No Kind enum (all 10 smelters are items). Sourced offline from rustlabsSmeltingData.json (28.5 KB, 10 smelters), SmeltingAsOf = 2023-11-05.

What's in it

• Schema v3 → v4: new Smelter/SmeltConversion records + Smelters table; DatasetSources.SmeltingAsOf.
• Generator: ISmeltingSource/OfflineSmeltingSource (per-smelter projection, orphan-drop), DatasetValidator smelter checks (MinSmelterCount: 8 floor + per-conversion validation), regenerated embedded item-data.json.
• Lookup: SmeltMatch/SmeltLookup + IItemDatabase.ResolveSmelter (mirrors RaidLookup/RaidMatch).
• Formatter: new shared DurationFormat.Seconds(double) (sub-minute aware) used by a refactored DurabilityLine and the new SmeltLine.
• Surfaces: SmeltCommandHandler (!smelt) + /smelt slash (RespondForSmeltAsync), /help rows, EN/FR resx keys.

Tests & gates

Full TDD throughout. Suite 666 tests / 16 assemblies green; build -warnaserror 0 warnings; jb cleanupcode clean.

Deferred

Input-keyed "where can I smelt X" view, slot-count/throughput math, and CCTV (the last open subsystem-6 item).

🤖 Generated with Claude Code