ToolUp.Facts.Presentation 0.38.1

ToolUp.Facts.Presentation

From a gated fact series to a Fuaran-UI node. A presentation request says what to draw — a trend, a breakdown, a comparison or a table of one fact table's metric(s) over a period — and a pure builder draws the series the fact browse's series read answered as a validated Fuaran-UI node, with the BlockProvenance that produced it.

The request is the whole of what an author (a person or a model) writes for a block. It carries no number: every number on the page comes from the series read, under the disclosure gate the facts are published under.

Compiled by both compilers (the sources ship under fable/), so a browser rebuilds exactly the node a server built.

What it gives you

• PresentationRequest — kind, table id, metrics, subject prefix and level, period ({ day; rangeDays } or { from; to }), compare-to, title and annotations — with a JSON codec (PresentationRequest.toJson / ofJson) that refuses a malformed request by name: the field it is missing, the kind it does not know. PresentationRequest.toQueries gives the series reads the request asks for.
• Presentation.build — from a request and one SeriesAnswer per metric (the gated FactSeries, or the read's refusal) to a PresentationBlock: the node, its provenance and its notes.
• The gap discipline. Fuaran-UI's chart lowering reads a missing cell as 0, so a withheld or absent point is never left in a chart's rows: a trend drops the day and marks it on the axis, a breakdown and a comparison drop the subject, a table drops the cell. Each is named, with its reason, beside the block. A refused read is a callout naming the refusal.
• Validated before it leaves. Every chart is drawn from a canonical columnar table, so the Fuaran-UI pre-emit validator grounds every field it names; a node the validator refuses is a builder defect (PresentationDefect.NodeRefused), never emitted.
• Fact cells. A table cell is a Fact node carrying its fact id as data-fact.

open ToolUp.Facts.Presentation

match PresentationRequest.ofJson requestJson with
| Error e -> Error(PresentationRequestError.describe e)
| Ok request ->
    // run PresentationRequest.toQueries through IFactBrowseApi.QuerySeries, then:
    Presentation.build request [ SeriesAnswer.Answered series ]

Dependencies

ToolUp.Facts.Shared, ToolUp.AI.Wire, and the published Apache-2.0 Fuaran.UI, Fuaran.UI.Charts and Fuaran.Core.Column packages from nuget.org.

Apache-2.0.