#112 ✨ Expxort price lists - #127
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📝 WalkthroughWalkthroughThe pull request adds a ChangesPrice board telemetry
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🔵 Low · up to Price exports may omit or inconsistently retain buy/sell rows when multiple station components share one placeable, potentially producing incomplete price lists. The PR is otherwise mergeable with explicit owner awareness and follow-up to aggregate these rows deterministically. Sequence Diagram(s)sequenceDiagram
participant VDTPricesExporter
participant prices.json
participant Server
participant TelemetryRepository
VDTPricesExporter->>prices.json: Write price-board data
Server->>prices.json: Parse prices.json
Server->>TelemetryRepository: Send ServerMessage.Prices
TelemetryRepository->>TelemetryRepository: Update prices StateFlow
🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (2 warnings)
✅ Passed checks (3 passed)
Full details: Linked Issues checkExplanation The PR implements the requirements in [ Full details: Docstring CoverageExplanation Docstring coverage is 53.45% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 58 functions across 13 files. (5 skipped: 5 unsupported.) ✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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August 25, 2026 17:08
…ad station by station Exports prices.json on its own 30 s interval: what every station pays for each fill type, what the ones that sell to you charge by the litre or by the pallet, and the twelve-month curve behind each commodity. The data the game's own "Prices" table draws, minus the walk through a menu. One entry per station PLACEABLE, the way that table groups it -- a building that buys grain and sells seed is one row with a sell and a buy list, not two stations. Commodities are listed once in their own catalogue, because the part that repeats is the curve, and a curve belongs to the commodity. Prices are per 1000 litres with the difficulty multiplier already folded in -- the unit the game prints, since its menu multiplies the per-litre figure by 1000 before showing it. Pallet prices are the exception and are for a whole pallet. Not farm-scoped (a price is the same number for every farm) and carrying no fill levels: what the farm owns is already on the storage / husbandry / production channels, so valuing stock is a join the terminal does rather than a second stock walk. The cadence is not a guess. A selling station syncs its effective price and its trend bits to a multiplayer client every 30 s, and getEffectiveFillTypePrice simply returns that stored value off the server -- so a client cannot be fresher than this, and the server has nothing quicker to report. Great demand is a bit in the same mask as the trend but is not one: a commodity in great demand is still climbing or falling, so both are exported. The flag rides in the synced price bits, while the premium and the countdown come from economyManager.greatDemands, which reaches a client only hourly by GreatDemandsEvent -- a client that has the flag without the premium reports the flag alone rather than inventing a multiplier. The per-station base price is deliberately absent: originalFillTypePrices is never synced, so exporting it would give a host and a client a different column. Kotlin side is the plumbing only -- model, parser, ServerMessage, the server watch and TelemetryRepository.prices. The stock overview that consumes it is issue #118, so nothing reads that flow yet. No capture exists, so PricesModelTest is inline JSON throughout and says so; FUTURE.md gains the capture wanted and the two in-game checks that settle it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
… instead of a stand-in Two captures from a played-in singleplayer save land as fixtures, and the shared model tests now decode them through the real server path. prices/vanilla.json — 44 stations against 121 commodities, 581 price rows. PricesModelTest pins what only a real board shows: the catalogue join holds in both directions (no row without a title, no commodity nothing names), the sort order that keeps a 30 s rewrite diffable, and the four station shapes — buy-only, buy-and-sell of the same fill type on one placeable (the slurry station charges 36.30 and pays 29.96), the depot's pallet counter and sell desk as one row with their two BOARDS prices in different units, and the station reachable only by train. Every station carries the normalized position this channel keeps rather than joining it from map.json. map/vanilla.json — 77 fields, 73 markers, 3 of them owned. MapDataModelTest pins the decimated outlines (26 points at most, far under the 256 cap), the fixed singleplayer farm green that makes the id the only thing telling farms apart, and the depot's two markers on one placeable, which is why a POI name is not a key. basic.json goes: it was hand-authored, and fixtures here are real captures. The two absences it alone covered — a POI the game gave no name, a field whose outline failed to resolve — move into inline JSON, which is where this project puts a shape no capture has. FUTURE.md narrows the prices ask to what is still missing: a great demand caught while it runs, and a commodity with no economy at all. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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map.json's farm list carried a farm nobody plays. FarmManager creates two of its own on every save -- the spectator farm and the guided-tour farm (GUIDED_TOUR_FARM_ID, 14) -- and hides both from the game's own farm screen. The spectator farm was already out, caught by farmId > 0; the tour farm was not, because isSpectator is false on it. It has no name and owns nothing, so it did nothing visible while the app used the list only as a farmId -> colour lookup. But in multiplayer it still draws a palette colour, and Farm.COLORS is indexed by whatever was picked at farm creation with nothing refusing an index another farm already wears -- so any farm list built from this would eventually show a nameless twin in a real farm's colour. Cheaper to leave it out than to teach every consumer to. The id is read off FarmManager where reachable, with the engine's own value as the fallback, the way Invoices.lua reads SPECTATOR_FARM_ID. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
…yer session Two captures from the same multiplayer client join the vanilla ones, and the shared model tests decode them through the real server path. Between them they carry every shape a singleplayer base-game save structurally cannot produce. prices/mp_modded.json -- 26 stations against 166 commodities, 653 rows. 46 of those commodities never appear on the vanilla board (rye, spelt, triticale, winter wheat, six ice creams, a biogas chain), each arriving with its title and its full curve, which is the proof that the catalogue is data: nothing on either side of the wire enumerates fill types. Three things only this board shows. Five separate placeables share the name "Gartengrundstueck Mist", so the id is the key and grouping by name would collapse five stations into one. A twelve-month curve can be mostly zero -- the two digestates and raw methane have a running average from two periods only, so ten of their months are 0, which is not a price a chart may plot as one; the game hides all three from its own table, which is the app's ready-made filter. And five stations have no map hotspot at all: 21 of the 26 sit on a marker at exactly the same normalized coordinates -- the two channels share one frame to the last decimal -- while the garden plots have none, so a board drawn by joining to map.json would have silently lost them. That is the case #112 kept coordinates on this channel for, now held against a real map rather than argued. map/mp_modded.json -- 85 fields, 63 markers, four farms, land owned by two of them. The marker vocabulary is the game's enum key camelCased, so a modded map widens it with nothing to maintain: this one puts an exclamationMark on a fire station and no bees or trains anywhere. Twelve markers are called "Hof", which makes the name-is-not-a-key point twelve times over. And what multiplayer says about farm colour: Farm.COLORS is indexed by whatever was picked at farm creation, with nothing refusing an index another farm already wears, so two farms in one save can be one hex and a legend that differed only by hue would show them as one. This capture is the near miss -- farm 3 shares #2e00fa with the guided-tour farm, which the exporter skips as of the previous commit. Both map captures predate that and still carry the farm; they stay as captured, because fixtures here are real captures and never hand-edited. FUTURE.md keeps the two prices asks that neither board answers: a great demand caught while it runs, and a commodity with no curve at all. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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August 25, 2026 17:30
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Inline comments:
In `@vdTelemetry/src/collect/PricesExporter.lua`:
- Around line 350-352: Update the sell and buy aggregation around entryFor so
repeated station components sharing an owningPlaceable append their rows instead
of overwriting existing .sell or .buy data; sort only after all rows for each
placeable have been accumulated, and add a fixture covering two same-side
station components.
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📒 Files selected for processing (21)
CLAUDE.mdFUTURE.mdVDTerminal/app/src/commonMain/kotlin/net/vertexdezign/vdt/app/net/TelemetryRepository.ktVDTerminal/app/src/commonMain/kotlin/net/vertexdezign/vdt/app/panels/DiagnosticsPanel.ktVDTerminal/server/src/main/kotlin/net/vertexdezign/vdt/server/Server.ktVDTerminal/shared/src/commonMain/kotlin/net/vertexdezign/vdt/Protocol.ktVDTerminal/shared/src/commonMain/kotlin/net/vertexdezign/vdt/VdtParser.ktVDTerminal/shared/src/commonMain/kotlin/net/vertexdezign/vdt/model/Prices.ktVDTerminal/shared/src/jvmTest/kotlin/net/vertexdezign/vdt/MapDataModelTest.ktVDTerminal/shared/src/jvmTest/kotlin/net/vertexdezign/vdt/PricesModelTest.ktexamples/json/map/basic.jsonexamples/json/map/mp_modded.jsonexamples/json/map/vanilla.jsonexamples/json/prices/mp_modded.jsonexamples/json/prices/vanilla.jsonvdTelemetry/Readme.mdvdTelemetry/VDTelemetry.luavdTelemetry/spec/PricesExporter_spec.luavdTelemetry/src/collect/MapExporter.luavdTelemetry/src/collect/PricesExporter.luavdTelemetry/src/model/PricesModel.lua
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- examples/json/map/basic.json
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A station's rows were assigned to its entry, so when two selling stations shared an owningPlaceable the second one's list replaced the first's outright -- the whole list, silently, with nothing downstream able to tell. Same on the buy side. Grouping per placeable is our choice, not the game's: a placeable type is just a list of specializations, so a map is free to build one out of two selling-station components, and the storage system then hands us both pointing at the same placeable. Rows are appended now, and each station's lists are sorted once at the end, because a list is only complete after all three passes have run. Appending rather than merging by fill type is deliberate: if two counters on one building really do price the same commodity differently, that is what the building does, and picking a winner would be inventing a policy. Two rows beat losing a list. The spec covers it beside the existing sell-and-buy-on-one-placeable test -- two selling and two buying stations on one placeable, asserting both lists survive and are still sorted, which only holds if the sort waits for both passes. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Resolves #112
Summary by CodeRabbit
New Features
Bug Fixes
Documentation