feature: add precision for release dates

also include movies from the last week

lib/api/movie_api.dart

@@ -1,7 +1,7 @@
 import 'package:release_schedule/model/movie.dart';
 
 abstract class MovieApi {
-  Future<List<MovieData>> getUpcomingMovies([int count]);
+  Future<List<MovieData>> getUpcomingMovies(DateTime startDate, [int count]);
   Future<List<MovieData>> searchForMovies(String searchTerm);
   Future<void> addMovieDetails(List<MovieData> movies);
 }

lib/api/wikidata_movie_api.dart

@@ -1,14 +1,16 @@
 import 'dart:convert';
 
 import 'package:http/http.dart';
+import 'package:intl/intl.dart';
 import 'package:release_schedule/api/api_manager.dart';
 import 'package:release_schedule/api/movie_api.dart';
 import 'package:release_schedule/model/movie.dart';
 
 class WikidataMovieData extends MovieData {
   int entityId;
-  WikidataMovieData(String title, DateTime releaseDate, this.entityId)
-      : super(title, releaseDate);
+  WikidataMovieData(String title, DateTime releaseDate,
+      DatePrecision releaseDatePrecision, this.entityId)
+      : super(title, releaseDate, releaseDatePrecision);
 
   WikidataMovieData.fromEncodable(Map encodable)
       : entityId = encodable["entityId"],
@@ -25,17 +27,22 @@ class WikidataMovieData extends MovieData {
   }
 }
 
-String createUpcomingMovieQuery(int limit) {
+String createUpcomingMovieQuery(DateTime startDate, int limit) {
+  String date = DateFormat("yyyy-MM-dd").format(startDate);
   return """
 SELECT
   ?movie
   ?movieLabel
   (MIN(?releaseDate) as ?minReleaseDate)
+  (SAMPLE(?precision) as ?datePrecision)
 WHERE {
   ?movie wdt:P31 wd:Q11424;         # Q11424 is the item for "film"
          wdt:P577 ?releaseDate;      # P577 is the "publication date" property
          wdt:P1476 ?title.
-  FILTER (xsd:date(?releaseDate) >= xsd:date(NOW()))
+  OPTIONAL {
+    ?movie p:P577/psv:P577/wikibase:timePrecision ?precision.
+  }
+  FILTER (xsd:date(?releaseDate) >= xsd:date("$date"^^xsd:dateTime))
 
   SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
 }
@@ -44,6 +51,17 @@ ORDER BY ?minReleaseDate
 LIMIT $limit""";
 }
 
+DatePrecision precisionFromWikidata(int precision) {
+  return switch (precision) {
+    >= 11 => DatePrecision.day,
+    10 => DatePrecision.month,
+    9 => DatePrecision.year,
+    8 => DatePrecision.decade,
+    < 8 => throw Exception("The precision was too low, value: $precision"),
+    _ => throw Exception("Unexpected precision value: $precision"),
+  };
+}
+
 class WikidataMovieApi implements MovieApi {
   ApiManager searchApi = ApiManager("https://www.wikidata.org/w/api.php");
   ApiManager queryApi =
@@ -56,9 +74,10 @@ class WikidataMovieApi implements MovieApi {
   }
 
   @override
-  Future<List<WikidataMovieData>> getUpcomingMovies([int count = 100]) async {
-    Response response = await queryApi
-        .get("&query=${Uri.encodeComponent(createUpcomingMovieQuery(count))}");
+  Future<List<WikidataMovieData>> getUpcomingMovies(DateTime startDate,
+      [int count = 100]) async {
+    Response response = await queryApi.get(
+        "&query=${Uri.encodeComponent(createUpcomingMovieQuery(startDate, count))}");
     if (response.statusCode != 200) {
       throw Exception(
           "The Wikidata request for upcoming movies failed with status ${response.statusCode} ${response.reasonPhrase}");
@@ -72,6 +91,7 @@ class WikidataMovieApi implements MovieApi {
       movies.add(WikidataMovieData(
           entry["movieLabel"]["value"] as String,
           DateTime.parse(entry["minReleaseDate"]["value"] as String),
+          precisionFromWikidata(int.parse(entry["datePrecision"]["value"])),
           int.parse(identifier.substring(1))));
     }
     return movies;

lib/model/movie.dart

@@ -26,9 +26,13 @@ class Review {
 typedef ReleaseDateInCountry = (String country, DateTime date);
 typedef TitleInCountry = (String country, String title);
 
+enum DatePrecision { decade, year, month, day, hour, minute }
+
 class MovieData extends ChangeNotifier {
   String _title;
   DateTime _releaseDate;
+  DatePrecision _releaseDatePrecision;
+
   bool _hasDetails = false;
   List<ReleaseDateInCountry>? _releaseDates;
   List<String>? _genres;
@@ -43,6 +47,10 @@ class MovieData extends ChangeNotifier {
     return _releaseDate;
   }
 
+  DatePrecision get releaseDatePrecision {
+    return _releaseDatePrecision;
+  }
+
   List<ReleaseDateInCountry>? get releaseDates {
     return _releaseDates;
   }
@@ -65,6 +73,9 @@ class MovieData extends ChangeNotifier {
 
   void updateWithNew(MovieData movie) {
     setDetails(
+        title: movie.title,
+        releaseDate: movie.releaseDate,
+        releaseDatePrecision: movie.releaseDatePrecision,
         releaseDates: movie.releaseDates,
         genres: movie.genres,
         titles: movie.titles,
@@ -72,10 +83,22 @@ class MovieData extends ChangeNotifier {
   }
 
   void setDetails(
-      {List<ReleaseDateInCountry>? releaseDates,
+      {String? title,
+      DateTime? releaseDate,
+      DatePrecision? releaseDatePrecision,
+      List<ReleaseDateInCountry>? releaseDates,
       List<String>? genres,
       List<TitleInCountry>? titles,
       List<Review>? reviews}) {
+    if (title != null) {
+      _title = title;
+    }
+    if (releaseDate != null) {
+      _releaseDate = releaseDate;
+    }
+    if (releaseDatePrecision != null) {
+      _releaseDatePrecision = releaseDatePrecision;
+    }
     if (releaseDates != null) {
       _releaseDates = releaseDates;
     }
@@ -104,6 +127,7 @@ class MovieData extends ChangeNotifier {
     return {
       "title": title,
       "releaseDate": releaseDate.toIso8601String(),
+      "releaseDatePrecision": _releaseDatePrecision.name,
       "releaseDates": releaseDatesByCountry,
       "genres": genres,
       "titles": titlesByCountry,
@@ -115,11 +139,13 @@ class MovieData extends ChangeNotifier {
     return title == other.title && releaseDate == other.releaseDate;
   }
 
-  MovieData(this._title, this._releaseDate);
+  MovieData(this._title, this._releaseDate, this._releaseDatePrecision);
 
   MovieData.fromJsonEncodable(Map json)
       : _title = json["title"],
-        _releaseDate = DateTime.parse(json["releaseDate"]) {
+        _releaseDate = DateTime.parse(json["releaseDate"]),
+        _releaseDatePrecision = DatePrecision.values.firstWhere(
+            (element) => element.name == json["releaseDatePrecision"]) {
     setDetails(
         genres: json["genres"],
         releaseDates: json["releaseDates"] != null

lib/model/movie_manager.dart

@@ -136,7 +136,8 @@ class MovieManager extends ChangeNotifier {
     try {
       loading = true;
       notifyListeners();
-      List<MovieData> movies = await api.getUpcomingMovies();
+      List<MovieData> movies = await api
+          .getUpcomingMovies(DateTime.now().subtract(const Duration(days: 7)));
       addMovies(movies);
     } finally {
       loading = false;