mirror of
https://github.com/zapstore/zapstore.git
synced 2026-10-05 20:48:24 +00:00
517 lines
14 KiB
Dart
517 lines
14 KiB
Dart
import 'package:flutter/gestures.dart';
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import 'package:flutter/material.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:models/models.dart';
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import 'package:zapstore/utils/extensions.dart';
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import 'package:zapstore/utils/nostr_route.dart';
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class NoteParser {
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static final RegExp nip19Regex = RegExp(
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r'(?:nostr:)?(npub|nsec|note|nprofile|nevent|naddr|nrelay)1[02-9ac-hj-np-z]+',
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caseSensitive: false,
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);
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static final RegExp httpUrlPattern = RegExp(
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r'https?://[^\s<>"\[\]{}|\\^`]+',
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caseSensitive: false,
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);
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static final RegExp _hashtagPattern = RegExp(
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r'#[a-zA-Z0-9_]+',
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caseSensitive: false,
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);
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static Widget parse(
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BuildContext context,
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String content, {
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Widget? Function(String entity)? onNostrEntity,
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Widget? Function(String httpUrl)? onHttpUrl,
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Widget? Function(String hashtag)? onHashtag,
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void Function(String hashtag)? onHashtagTap,
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TextStyle? textStyle,
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TextStyle? linkStyle,
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}) {
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if (content.isEmpty) {
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return Text('', style: textStyle);
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}
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final List<InlineSpan> spans = [];
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final List<_EntityMatch> matches = [];
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for (final match in nip19Regex.allMatches(content)) {
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final entity = match.group(0)!;
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final nip19Entity = entity.replaceFirst('nostr:', '');
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matches.add(_EntityMatch(
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start: match.start,
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end: match.end,
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text: entity,
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type: _EntityType.nip19,
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cleanEntity: nip19Entity,
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));
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}
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for (final match in httpUrlPattern.allMatches(content)) {
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final url = match.group(0)!;
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matches.add(_EntityMatch(
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start: match.start,
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end: match.end,
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text: url,
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type: _EntityType.http,
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cleanEntity: url,
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));
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}
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for (final match in _hashtagPattern.allMatches(content)) {
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final hashtag = match.group(0)!;
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matches.add(_EntityMatch(
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start: match.start,
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end: match.end,
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text: hashtag,
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type: _EntityType.hashtag,
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cleanEntity: hashtag.substring(1),
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));
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}
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matches.sort((a, b) => a.start.compareTo(b.start));
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final filtered = <_EntityMatch>[];
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var lastEnd = -1;
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for (final m in matches) {
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if (m.start >= lastEnd) {
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filtered.add(m);
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lastEnd = m.end;
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}
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}
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int currentPos = 0;
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for (final match in filtered) {
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if (match.start > currentPos) {
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final textBefore = content.substring(currentPos, match.start);
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spans.add(TextSpan(text: textBefore, style: textStyle));
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}
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Widget? replacement;
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switch (match.type) {
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case _EntityType.nip19:
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replacement = onNostrEntity?.call(match.cleanEntity);
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break;
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case _EntityType.http:
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replacement = onHttpUrl?.call(match.text);
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break;
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case _EntityType.hashtag:
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replacement =
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onHashtag?.call(match.cleanEntity) ??
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HashtagWidget(
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hashtag: match.cleanEntity,
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colorPair: [
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Theme.of(context).colorScheme.primary,
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Theme.of(context).colorScheme.primaryContainer,
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],
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onTap: onHashtagTap != null
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? () => onHashtagTap(match.cleanEntity)
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: null,
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);
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break;
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}
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if (replacement != null) {
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spans.add(WidgetSpan(
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child: replacement,
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alignment: PlaceholderAlignment.baseline,
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baseline: TextBaseline.alphabetic,
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));
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} else if (match.type == _EntityType.http) {
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final style =
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linkStyle ??
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textStyle?.copyWith(
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color: Theme.of(context).colorScheme.primary,
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);
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spans.add(TextSpan(
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text: match.text,
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style: style,
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recognizer: TapGestureRecognizer()
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..onTap = () => navigateToContent(context, match.text),
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));
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} else {
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final style =
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linkStyle ??
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textStyle?.copyWith(
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color: Theme.of(context).colorScheme.primary,
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);
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spans.add(TextSpan(text: match.text, style: style));
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}
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currentPos = match.end;
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}
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if (currentPos < content.length) {
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final remainingText = content.substring(currentPos);
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spans.add(TextSpan(text: remainingText, style: textStyle));
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}
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if (spans.isEmpty) {
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return Text(content, style: textStyle);
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}
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return Text.rich(TextSpan(children: spans));
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}
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}
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class _EntityMatch {
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final int start;
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final int end;
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final String text;
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final _EntityType type;
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final String cleanEntity;
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_EntityMatch({
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required this.start,
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required this.end,
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required this.text,
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required this.type,
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required this.cleanEntity,
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});
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}
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enum _EntityType { nip19, http, hashtag }
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// Widgets
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class NostrEntityWidget extends StatelessWidget {
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final String entity;
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final List<Color> colorPair;
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const NostrEntityWidget({
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super.key,
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required this.entity,
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required this.colorPair,
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});
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@override
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Widget build(BuildContext context) {
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try {
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final decoded = Utils.decodeShareableIdentifier(entity);
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return switch (decoded) {
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ProfileData() => ProfileEntityWidget(
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profileData: decoded,
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colorPair: colorPair,
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),
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EventData() => EventEntityWidget(
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eventData: decoded,
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colorPair: colorPair,
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),
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AddressData() => AddressEntityWidget(
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addressData: decoded,
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colorPair: colorPair,
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),
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};
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} catch (e) {
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return GenericNip19Widget(entity: entity, colorPair: colorPair);
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}
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}
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}
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class ProfileEntityWidget extends ConsumerWidget {
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final ProfileData profileData;
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final List<Color> colorPair;
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const ProfileEntityWidget({
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super.key,
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required this.profileData,
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required this.colorPair,
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});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final profileState = ref.watch(
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query<Profile>(
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authors: {profileData.pubkey},
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source: const LocalAndRemoteSource(
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relays: {'social', 'vertex'},
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cachedFor: Duration(hours: 2),
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),
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subscriptionPrefix: 'app-note-profile',
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),
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);
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void handleTap() => pushUser(context, profileData.pubkey);
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return switch (profileState) {
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StorageLoading() => GestureDetector(
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onTap: handleTap,
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child: _AnimatedLoadingChip(
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text: 'npub1${profileData.pubkey.substring(0, 8)}...',
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colorPair: colorPair,
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),
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),
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StorageError() || StorageData(models: []) => GestureDetector(
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onTap: handleTap,
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child: _AnimatedLoadingChip(
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text: 'npub1${profileData.pubkey.substring(0, 8)}...',
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colorPair: colorPair,
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),
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),
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StorageData(:final models) => _buildProfileWidget(context, models.first),
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};
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}
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Widget _buildProfileWidget(BuildContext context, Profile profile) {
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return GestureDetector(
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onTap: () => pushUser(context, profileData.pubkey),
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child: DecoratedBox(
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decoration: BoxDecoration(
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color: colorPair[0].withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(4.0),
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),
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 4.0),
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child: Text(
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profile.nameOrNpub,
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style: context.textTheme.bodyMedium!.copyWith(
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fontWeight: FontWeight.w500,
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color: colorPair[0],
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),
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),
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),
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),
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);
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}
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}
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class EventEntityWidget extends StatelessWidget {
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final EventData eventData;
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final List<Color> colorPair;
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const EventEntityWidget({
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super.key,
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required this.eventData,
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required this.colorPair,
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});
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@override
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Widget build(BuildContext context) {
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final shortId = eventData.eventId.length > 12
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? '${eventData.eventId.substring(0, 8)}…'
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: eventData.eventId;
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return Container(
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margin: const EdgeInsets.symmetric(vertical: 8.0),
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.surfaceContainerLowest,
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borderRadius: BorderRadius.circular(12.0),
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border: Border.all(
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color: colorPair[0].withValues(alpha: 0.2),
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width: 1.0,
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),
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boxShadow: [
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BoxShadow(
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color: colorPair[0].withValues(alpha: 0.05),
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blurRadius: 4.0,
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offset: const Offset(0, 2),
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),
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],
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),
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child: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Row(
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children: [
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Icon(Icons.event, color: colorPair[0]),
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const SizedBox(width: 8.0),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'Event',
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style: context.textTheme.bodyMedium?.copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 4),
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Text(
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shortId,
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style: context.textTheme.bodySmall?.copyWith(
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color: Theme.of(
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context,
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).colorScheme.onSurface.withValues(alpha: 0.7),
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fontFeatures: const [FontFeature.tabularFigures()],
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),
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),
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],
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),
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),
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],
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),
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),
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);
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}
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}
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class AddressEntityWidget extends StatelessWidget {
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final AddressData addressData;
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final List<Color> colorPair;
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const AddressEntityWidget({
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super.key,
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required this.addressData,
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required this.colorPair,
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});
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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onTap: () {
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if (addressData.kind == 30267) {
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pushStack(context, addressData.identifier);
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} else {
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pushApp(context, addressData.identifier);
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}
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},
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child: DecoratedBox(
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decoration: BoxDecoration(
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color: colorPair[0].withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(4.0),
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),
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 4.0),
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child: Text(
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addressData.identifier,
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style: context.textTheme.bodyMedium!.copyWith(
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fontWeight: FontWeight.w500,
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color: colorPair[0],
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),
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),
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),
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),
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);
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}
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}
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class GenericNip19Widget extends StatelessWidget {
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final String entity;
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final List<Color> colorPair;
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const GenericNip19Widget({
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super.key,
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required this.entity,
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required this.colorPair,
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});
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@override
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Widget build(BuildContext context) {
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return DecoratedBox(
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decoration: BoxDecoration(
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color: colorPair[0].withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(4.0),
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),
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 4.0),
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child: Text(
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entity,
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style: context.textTheme.bodyMedium!.copyWith(
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fontWeight: FontWeight.w500,
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color: colorPair[0],
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),
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),
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),
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);
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}
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}
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class HashtagWidget extends StatelessWidget {
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final String hashtag;
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final List<Color> colorPair;
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final VoidCallback? onTap;
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const HashtagWidget({
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super.key,
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required this.hashtag,
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required this.colorPair,
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this.onTap,
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});
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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onTap: onTap,
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child: Container(
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decoration: BoxDecoration(
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color: colorPair[0].withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(4.0),
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),
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padding: const EdgeInsets.symmetric(horizontal: 4.0, vertical: 1.0),
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child: Text(
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'#$hashtag',
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style: context.textTheme.bodyMedium!.copyWith(
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color: colorPair[0],
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fontWeight: FontWeight.w500,
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),
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),
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),
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);
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}
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}
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class _AnimatedLoadingChip extends StatefulWidget {
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final String text;
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final List<Color> colorPair;
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const _AnimatedLoadingChip({required this.text, required this.colorPair});
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@override
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State<_AnimatedLoadingChip> createState() => _AnimatedLoadingChipState();
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}
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class _AnimatedLoadingChipState extends State<_AnimatedLoadingChip>
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with SingleTickerProviderStateMixin {
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late AnimationController _controller;
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late Animation<double> _animation;
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@override
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void initState() {
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super.initState();
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_controller = AnimationController(
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duration: const Duration(milliseconds: 1500),
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vsync: this,
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);
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_animation = Tween<double>(
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begin: 0.1,
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end: 0.3,
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).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
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_controller.repeat(reverse: true);
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return AnimatedBuilder(
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animation: _animation,
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builder: (context, child) {
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return DecoratedBox(
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decoration: BoxDecoration(
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color: widget.colorPair[0].withValues(alpha: _animation.value),
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borderRadius: BorderRadius.circular(4.0),
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),
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 4.0),
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child: Text(
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widget.text,
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style: context.textTheme.bodyMedium!.copyWith(
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fontWeight: FontWeight.w500,
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color: widget.colorPair[0],
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),
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),
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),
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);
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},
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);
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}
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}
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