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(* The canonical flat output view (spec §2.4). Rite-parametric types stop here:
every field is a string, so CSV, JSON and the template engine never see a
type variable. *)
type t = {
date : string;
rite : string;
season : string;
week : string; (** "" when the day is outside a numbered week *)
weekday : string;
slug : string;
rank : string;
colour : string;
subject : string;
names : (string * string) list;
citations : (string * string) list;
}
let of_temporal ~rite vocab date (t : ('s, 'r) Temporal.t) =
let cel = t.Temporal.office in
{
date = Date.to_iso8601 date;
rite;
season = vocab.Vocab.season_to_string t.Temporal.season;
week = (match t.Temporal.week with Some n -> string_of_int n | None -> "");
weekday = Date.weekday_to_string t.Temporal.weekday;
slug = Slug.to_string cel.Celebration.slug;
rank = vocab.Vocab.rank_to_string cel.Celebration.rank;
colour = Colour.to_string cel.Celebration.colour;
subject = Subject.to_string cel.Celebration.subject;
names = List.map (fun (l, n) -> (Lang.to_string l, n)) (Names.to_list cel.Celebration.names);
citations =
List.map (fun c -> (Citation.part_to_string c.Citation.part, c.Citation.reference))
cel.Celebration.citations;
}
(* Scalar columns, each with a (name, extractor) pair. Derived from this single
source ensures headers and to_row cannot drift apart. Names and citations are
excluded: they are variable-arity and belong to richer encoders in Plan 5. *)
let columns =
[ ("date", fun r -> r.date);
("rite", fun r -> r.rite);
("season", fun r -> r.season);
("week", fun r -> r.week);
("weekday", fun r -> r.weekday);
("slug", fun r -> r.slug);
("rank", fun r -> r.rank);
("colour", fun r -> r.colour);
("subject", fun r -> r.subject);
]
let headers = List.map fst columns
let to_row r = List.map (fun (_, get) -> get r) columns
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