commit a5851e71fb7a758a36769efe83aff13a4cc415c5 Author: randogoth Date: Thu Feb 27 13:43:31 2025 +0200 init diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..3a85790 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +# https://dart.dev/guides/libraries/private-files +# Created by `dart pub` +.dart_tool/ diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 0000000..effe43c --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,3 @@ +## 1.0.0 + +- Initial version. diff --git a/README.md b/README.md new file mode 100644 index 0000000..3816eca --- /dev/null +++ b/README.md @@ -0,0 +1,2 @@ +A sample command-line application with an entrypoint in `bin/`, library code +in `lib/`, and example unit test in `test/`. diff --git a/analysis_options.yaml b/analysis_options.yaml new file mode 100644 index 0000000..dee8927 --- /dev/null +++ b/analysis_options.yaml @@ -0,0 +1,30 @@ +# This file configures the static analysis results for your project (errors, +# warnings, and lints). +# +# This enables the 'recommended' set of lints from `package:lints`. +# This set helps identify many issues that may lead to problems when running +# or consuming Dart code, and enforces writing Dart using a single, idiomatic +# style and format. +# +# If you want a smaller set of lints you can change this to specify +# 'package:lints/core.yaml'. These are just the most critical lints +# (the recommended set includes the core lints). +# The core lints are also what is used by pub.dev for scoring packages. + +include: package:lints/recommended.yaml + +# Uncomment the following section to specify additional rules. + +# linter: +# rules: +# - camel_case_types + +# analyzer: +# exclude: +# - path/to/excluded/files/** + +# For more information about the core and recommended set of lints, see +# https://dart.dev/go/core-lints + +# For additional information about configuring this file, see +# https://dart.dev/guides/language/analysis-options diff --git a/bin/rugreefer.dart b/bin/rugreefer.dart new file mode 100644 index 0000000..de95ff5 --- /dev/null +++ b/bin/rugreefer.dart @@ -0,0 +1,5 @@ +import 'package:rugreefer/rugreefer.dart'; // Ensure this import is correct + +void main() { + print('Hello world!'); // Remove the missing method call +} \ No newline at end of file diff --git a/lib/rugreefer.dart b/lib/rugreefer.dart new file mode 100644 index 0000000..8467fb8 --- /dev/null +++ b/lib/rugreefer.dart @@ -0,0 +1,96 @@ +import 'dart:convert'; +import 'dart:io'; +import 'package:http/http.dart' as http; +import 'package:dart_geohash/dart_geohash.dart'; +import 'package:latlong2/latlong.dart'; +import 'package:turf/turf.dart'; + +class GeoMetadataLookup { + final String apiUrl; + final Directory cacheDir; + final double distanceThreshold; + final Distance distance = const Distance(); + + GeoMetadataLookup({ + required this.apiUrl, + required this.cacheDir, + this.distanceThreshold = 10.0, // Default 10 meters + }) { + if (!cacheDir.existsSync()) { + cacheDir.createSync(recursive: true); + } + } + + Future>> lookup(double latitude, double longitude) async { + final String geohash = GeoHasher().encode(latitude, longitude, precision: 4); + final File cacheFile = File('${cacheDir.path}/$geohash.geojson.gz'); + + if (!cacheFile.existsSync()) { + await _downloadGeoJson(geohash, cacheFile); + } + + final String geoJsonStr = utf8.decode(GZipCodec().decode(cacheFile.readAsBytesSync())); + final Map geoJson = jsonDecode(geoJsonStr); + return _findMetadata(latitude, longitude, geoJson); + } + + Future _downloadGeoJson(String geohash, File cacheFile) async { + final response = await http.get(Uri.parse('$apiUrl/$geohash.geojson.gz')); + if (response.statusCode == 200) { + cacheFile.writeAsBytesSync(GZipCodec().encode(response.bodyBytes)); + } else { + throw Exception('Failed to download GeoJSON for geohash: $geohash'); + } + } + + List> _findMetadata(double latitude, double longitude, Map geoJson) { + final Point point = Point(coordinates: Position(longitude, latitude)); + List> results = []; + + for (var feature in geoJson['features']) { + final geometry = feature['geometry']; + final properties = feature['properties'] ?? {}; + + if (geometry['type'] == 'Polygon') { + final polygon = Polygon( + coordinates: (geometry['coordinates'] as List) + .map((ring) => (ring as List) + .map((p) => Position(p[0] as double, p[1] as double)) + .toList()) + .toList(), + ); + } + + else if (geometry['type'] == 'LineString') { + final line = LineString(coordinates: (geometry['coordinates'] as List).map((p) => Position(p[0], p[1])).toList()); + if (_isPointNearLine(point, line)) { + results.add({'type': 'line', ...properties}); + } + } + + else if (geometry['type'] == 'MultiLineString') { + for (var lineCoords in geometry['coordinates']) { + final line = LineString(coordinates: lineCoords.map((p) => Position(p[0], p[1])).toList()); + if (_isPointNearLine(point, line)) { + results.add({'type': 'multi_line', ...properties}); + break; + } + } + } + } + return results; + } + + bool _isPointNearLine(Point point, LineString line) { + for (var i = 0; i < line.coordinates.length - 1; i++) { + final p1 = line.coordinates[i]; + final p2 = line.coordinates[i + 1]; + final double dist = distance.distance( + LatLng(point.coordinates.lat.toDouble(), point.coordinates.lng.toDouble()), + LatLng(p1.lat.toDouble(), p1.lng.toDouble()), + ); + if (dist <= distanceThreshold) return true; + } + return false; + } +} \ No newline at end of file diff --git a/pubspec.lock b/pubspec.lock new file mode 100644 index 0000000..84d3b8c --- /dev/null +++ b/pubspec.lock @@ -0,0 +1,501 @@ +# Generated by pub +# See https://dart.dev/tools/pub/glossary#lockfile +packages: + _fe_analyzer_shared: + dependency: transitive + description: + name: _fe_analyzer_shared + sha256: dc27559385e905ad30838356c5f5d574014ba39872d732111cd07ac0beff4c57 + url: "https://pub.dev" + source: hosted + version: "80.0.0" + analyzer: + dependency: transitive + description: + name: analyzer + sha256: "192d1c5b944e7e53b24b5586db760db934b177d4147c42fbca8c8c5f1eb8d11e" + url: "https://pub.dev" + source: hosted + version: "7.3.0" + args: + dependency: transitive + description: + name: args + sha256: bf9f5caeea8d8fe6721a9c358dd8a5c1947b27f1cfaa18b39c301273594919e6 + url: "https://pub.dev" + source: hosted + version: "2.6.0" + async: + dependency: transitive + description: + name: async + sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb" + url: "https://pub.dev" + source: hosted + version: "2.13.0" + benchmark: + dependency: transitive + description: + name: benchmark + sha256: cb3eeea01e3f054df76ee9775ca680f3afa5f19f39b2bb426ba78ba27654493b + url: "https://pub.dev" + source: hosted + version: "0.3.0" + boolean_selector: + dependency: transitive + description: + name: boolean_selector + sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea" + url: "https://pub.dev" + source: hosted + version: "2.1.2" + clock: + dependency: transitive + description: + name: clock + sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b + url: "https://pub.dev" + source: hosted + version: "1.1.2" + collection: + dependency: transitive + description: + name: collection + sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76" + url: "https://pub.dev" + source: hosted + version: "1.19.1" + convert: + dependency: transitive + description: + name: convert + sha256: b30acd5944035672bc15c6b7a8b47d773e41e2f17de064350988c5d02adb1c68 + url: "https://pub.dev" + source: hosted + version: "3.1.2" + coverage: + dependency: transitive + description: + name: coverage + sha256: e3493833ea012784c740e341952298f1cc77f1f01b1bbc3eb4eecf6984fb7f43 + url: "https://pub.dev" + source: hosted + version: "1.11.1" + crypto: + dependency: transitive + description: + name: crypto + sha256: "1e445881f28f22d6140f181e07737b22f1e099a5e1ff94b0af2f9e4a463f4855" + url: "https://pub.dev" + source: hosted + version: "3.0.6" + dart_geohash: + dependency: "direct main" + description: + name: dart_geohash + sha256: c5594c0063ca67f37778b2c7d025d22e2ecd38741c0acd5b0f7596374e3309f2 + url: "https://pub.dev" + source: hosted + version: "2.1.0" + dart_sort_queue: + dependency: transitive + description: + name: dart_sort_queue + sha256: f3353ba8b4850e072d3368757f62edb79af34a9703c3e3df9c59342721f5f5b1 + url: "https://pub.dev" + source: hosted + version: "0.0.2+3" + file: + dependency: transitive + description: + name: file + sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4 + url: "https://pub.dev" + source: hosted + version: "7.0.1" + frontend_server_client: + dependency: transitive + description: + name: frontend_server_client + sha256: f64a0333a82f30b0cca061bc3d143813a486dc086b574bfb233b7c1372427694 + url: "https://pub.dev" + source: hosted + version: "4.0.0" + geotypes: + dependency: transitive + description: + name: geotypes + sha256: "5bedf57de92283133dd221e363812ef50eaaba414f0823b1974ef7d84b86991f" + url: "https://pub.dev" + source: hosted + version: "0.0.2" + glob: + dependency: transitive + description: + name: glob + sha256: c3f1ee72c96f8f78935e18aa8cecced9ab132419e8625dc187e1c2408efc20de + url: "https://pub.dev" + source: hosted + version: "2.1.3" + http: + dependency: "direct main" + description: + name: http + sha256: fe7ab022b76f3034adc518fb6ea04a82387620e19977665ea18d30a1cf43442f + url: "https://pub.dev" + source: hosted + version: "1.3.0" + http_multi_server: + dependency: transitive + description: + name: http_multi_server + sha256: aa6199f908078bb1c5efb8d8638d4ae191aac11b311132c3ef48ce352fb52ef8 + url: "https://pub.dev" + source: hosted + version: "3.2.2" + http_parser: + dependency: transitive + description: + name: http_parser + sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571" + url: "https://pub.dev" + source: hosted + version: "4.1.2" + intl: + dependency: transitive + description: + name: intl + sha256: "3df61194eb431efc39c4ceba583b95633a403f46c9fd341e550ce0bfa50e9aa5" + url: "https://pub.dev" + source: hosted + version: "0.20.2" + io: + dependency: transitive + description: + name: io + sha256: dfd5a80599cf0165756e3181807ed3e77daf6dd4137caaad72d0b7931597650b + url: "https://pub.dev" + source: hosted + version: "1.0.5" + js: + dependency: transitive + description: + name: js + sha256: c1b2e9b5ea78c45e1a0788d29606ba27dc5f71f019f32ca5140f61ef071838cf + url: "https://pub.dev" + source: hosted + version: "0.7.1" + json_annotation: + dependency: transitive + description: + name: json_annotation + sha256: "1ce844379ca14835a50d2f019a3099f419082cfdd231cd86a142af94dd5c6bb1" + url: "https://pub.dev" + source: hosted + version: "4.9.0" + latlong2: + dependency: "direct main" + description: + name: latlong2 + sha256: "98227922caf49e6056f91b6c56945ea1c7b166f28ffcd5fb8e72fc0b453cc8fe" + url: "https://pub.dev" + source: hosted + version: "0.9.1" + lints: + dependency: "direct dev" + description: + name: lints + sha256: c35bb79562d980e9a453fc715854e1ed39e24e7d0297a880ef54e17f9874a9d7 + url: "https://pub.dev" + source: hosted + version: "5.1.1" + logging: + dependency: transitive + description: + name: logging + sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61 + url: "https://pub.dev" + source: hosted + version: "1.3.0" + matcher: + dependency: transitive + description: + name: matcher + sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2 + url: "https://pub.dev" + source: hosted + version: "0.12.17" + meta: + dependency: transitive + description: + name: meta + sha256: e3641ec5d63ebf0d9b41bd43201a66e3fc79a65db5f61fc181f04cd27aab950c + url: "https://pub.dev" + source: hosted + version: "1.16.0" + mime: + dependency: transitive + description: + name: mime + sha256: "41a20518f0cb1256669420fdba0cd90d21561e560ac240f26ef8322e45bb7ed6" + url: "https://pub.dev" + source: hosted + version: "2.0.0" + node_preamble: + dependency: transitive + description: + name: node_preamble + sha256: "6e7eac89047ab8a8d26cf16127b5ed26de65209847630400f9aefd7cd5c730db" + url: "https://pub.dev" + source: hosted + version: "2.0.2" + package_config: + dependency: transitive + description: + name: package_config + sha256: "92d4488434b520a62570293fbd33bb556c7d49230791c1b4bbd973baf6d2dc67" + url: "https://pub.dev" + source: hosted + version: "2.1.1" + path: + dependency: transitive + description: + name: path + sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5" + url: "https://pub.dev" + source: hosted + version: "1.9.1" + pool: + dependency: transitive + description: + name: pool + sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a" + url: "https://pub.dev" + source: hosted + version: "1.5.1" + pub_semver: + dependency: transitive + description: + name: pub_semver + sha256: "7b3cfbf654f3edd0c6298ecd5be782ce997ddf0e00531b9464b55245185bbbbd" + url: "https://pub.dev" + source: hosted + version: "2.1.5" + rbush: + dependency: transitive + description: + name: rbush + sha256: "48b683421b4afb43a642f82c6aa31911e54f3069143d31c7d33cbe329df13403" + url: "https://pub.dev" + source: hosted + version: "1.1.1" + shelf: + dependency: transitive + description: + name: shelf + sha256: e7dd780a7ffb623c57850b33f43309312fc863fb6aa3d276a754bb299839ef12 + url: "https://pub.dev" + source: hosted + version: "1.4.2" + shelf_packages_handler: + dependency: transitive + description: + name: shelf_packages_handler + sha256: "89f967eca29607c933ba9571d838be31d67f53f6e4ee15147d5dc2934fee1b1e" + url: "https://pub.dev" + source: hosted + version: "3.0.2" + shelf_static: + dependency: transitive + description: + name: shelf_static + sha256: c87c3875f91262785dade62d135760c2c69cb217ac759485334c5857ad89f6e3 + url: "https://pub.dev" + source: hosted + version: "1.1.3" + shelf_web_socket: + dependency: transitive + description: + name: shelf_web_socket + sha256: "3632775c8e90d6c9712f883e633716432a27758216dfb61bd86a8321c0580925" + url: "https://pub.dev" + source: hosted + version: "3.0.0" + source_map_stack_trace: + dependency: transitive + description: + name: source_map_stack_trace + sha256: c0713a43e323c3302c2abe2a1cc89aa057a387101ebd280371d6a6c9fa68516b + url: "https://pub.dev" + source: hosted + version: "2.1.2" + source_maps: + dependency: transitive + description: + name: source_maps + sha256: "190222579a448b03896e0ca6eca5998fa810fda630c1d65e2f78b3f638f54812" + url: "https://pub.dev" + source: hosted + version: "0.10.13" + source_span: + dependency: transitive + description: + name: source_span + sha256: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c" + url: "https://pub.dev" + source: hosted + version: "1.10.1" + stack_trace: + dependency: transitive + description: + name: stack_trace + sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1" + url: "https://pub.dev" + source: hosted + version: "1.12.1" + stream_channel: + dependency: transitive + description: + name: stream_channel + sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d" + url: "https://pub.dev" + source: hosted + version: "2.1.4" + string_scanner: + dependency: transitive + description: + name: string_scanner + sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43" + url: "https://pub.dev" + source: hosted + version: "1.4.1" + sweepline_intersections: + dependency: transitive + description: + name: sweepline_intersections + sha256: a665c707200a4f07140a4029b41a7c4883beb3f04322cd8e08ebf650f69e1176 + url: "https://pub.dev" + source: hosted + version: "0.0.4" + term_glyph: + dependency: transitive + description: + name: term_glyph + sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e" + url: "https://pub.dev" + source: hosted + version: "1.2.2" + test: + dependency: "direct dev" + description: + name: test + sha256: "301b213cd241ca982e9ba50266bd3f5bd1ea33f1455554c5abb85d1be0e2d87e" + url: "https://pub.dev" + source: hosted + version: "1.25.15" + test_api: + dependency: transitive + description: + name: test_api + sha256: fb31f383e2ee25fbbfe06b40fe21e1e458d14080e3c67e7ba0acfde4df4e0bbd + url: "https://pub.dev" + source: hosted + version: "0.7.4" + test_core: + dependency: transitive + description: + name: test_core + sha256: "84d17c3486c8dfdbe5e12a50c8ae176d15e2a771b96909a9442b40173649ccaa" + url: "https://pub.dev" + source: hosted + version: "0.6.8" + turf: + dependency: "direct main" + description: + name: turf + sha256: "75347c45a5c1de805db7cb182286f05a3770e01546626c4dc292709d15cbe436" + url: "https://pub.dev" + source: hosted + version: "0.0.10" + turf_equality: + dependency: transitive + description: + name: turf_equality + sha256: f0f44ffe389547941358e0d3d4a747db2bd56115b32ff1cede5e5bdf3126a3e2 + url: "https://pub.dev" + source: hosted + version: "0.1.0" + turf_pip: + dependency: transitive + description: + name: turf_pip + sha256: ba4fd414baffd5d7b30880658ad6db82461c49ec023f8ffd0c23d398ad8b14be + url: "https://pub.dev" + source: hosted + version: "0.0.2" + typed_data: + dependency: transitive + description: + name: typed_data + sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006 + url: "https://pub.dev" + source: hosted + version: "1.4.0" + vm_service: + dependency: transitive + description: + name: vm_service + sha256: ddfa8d30d89985b96407efce8acbdd124701f96741f2d981ca860662f1c0dc02 + url: "https://pub.dev" + source: hosted + version: "15.0.0" + watcher: + dependency: transitive + description: + name: watcher + sha256: "69da27e49efa56a15f8afe8f4438c4ec02eff0a117df1b22ea4aad194fe1c104" + url: "https://pub.dev" + source: hosted + version: "1.1.1" + web: + dependency: transitive + description: + name: web + sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a" + url: "https://pub.dev" + source: hosted + version: "1.1.1" + web_socket: + dependency: transitive + description: + name: web_socket + sha256: "3c12d96c0c9a4eec095246debcea7b86c0324f22df69893d538fcc6f1b8cce83" + url: "https://pub.dev" + source: hosted + version: "0.1.6" + web_socket_channel: + dependency: transitive + description: + name: web_socket_channel + sha256: "0b8e2457400d8a859b7b2030786835a28a8e80836ef64402abef392ff4f1d0e5" + url: "https://pub.dev" + source: hosted + version: "3.0.2" + webkit_inspection_protocol: + dependency: transitive + description: + name: webkit_inspection_protocol + sha256: "87d3f2333bb240704cd3f1c6b5b7acd8a10e7f0bc28c28dcf14e782014f4a572" + url: "https://pub.dev" + source: hosted + version: "1.2.1" + yaml: + dependency: transitive + description: + name: yaml + sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce + url: "https://pub.dev" + source: hosted + version: "3.1.3" +sdks: + dart: ">=3.6.0 <4.0.0" diff --git a/pubspec.yaml b/pubspec.yaml new file mode 100644 index 0000000..6be8384 --- /dev/null +++ b/pubspec.yaml @@ -0,0 +1,19 @@ +name: rugreefer +description: A sample command-line application. +version: 1.0.0 +# repository: https://github.com/my_org/my_repo + +environment: + sdk: ^3.6.0 + +# Add regular dependencies here. +dependencies: + dart_geohash: ^2.1.0 + http: ^1.3.0 + latlong2: ^0.9.1 + turf: ^0.0.10 + # path: ^1.8.0 + +dev_dependencies: + lints: ^5.0.0 + test: ^1.24.0 diff --git a/test/rugreefer_test.dart b/test/rugreefer_test.dart new file mode 100644 index 0000000..3bcbf1b --- /dev/null +++ b/test/rugreefer_test.dart @@ -0,0 +1,5 @@ +import 'package:rugreefer/rugreefer.dart'; // Ensure this import is correct + +void main() { + print('Hello world!'); // Remove the missing method call +}