mirror of
https://github.com/cypherstack/stack_wallet.git
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103 lines
2.4 KiB
Dart
103 lines
2.4 KiB
Dart
part of 'firo_cache.dart';
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/// Keep all fetch queries in this separate file
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abstract class _Reader {
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// ===========================================================================
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// =============== Spark anonymity set queries ===============================
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static Future<ResultSet> _getSetCoinsForGroupId(
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int groupId, {
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required Database db,
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int? newerThanTimeStamp,
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}) async {
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String query = """
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SELECT sc.serialized, sc.txHash, sc.context
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FROM SparkSet AS ss
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JOIN SparkSetCoins AS ssc ON ss.id = ssc.setId
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JOIN SparkCoin AS sc ON ssc.coinId = sc.id
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WHERE ss.groupId = $groupId
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""";
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if (newerThanTimeStamp != null) {
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query += " AND ss.timestampUTC"
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" > $newerThanTimeStamp";
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}
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return db.select("$query;");
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}
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static Future<ResultSet> _getLatestSetInfoForGroupId(
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int groupId, {
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required Database db,
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}) async {
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final query = """
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SELECT ss.blockHash, ss.setHash, ss.timestampUTC
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FROM SparkSet ss
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WHERE ss.groupId = $groupId
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ORDER BY ss.timestampUTC DESC
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LIMIT 1;
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""";
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return db.select("$query;");
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}
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static Future<bool> _checkSetInfoForGroupIdExists(
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int groupId, {
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required Database db,
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}) async {
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final query = """
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SELECT EXISTS (
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SELECT 1
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FROM SparkSet
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WHERE groupId = $groupId
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) AS setExists;
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""";
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return db.select("$query;").first["setExists"] == 1;
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}
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// ===========================================================================
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// =============== Spark used coin tags queries ==============================
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static Future<ResultSet> _getSparkUsedCoinTags(
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int startNumber, {
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required Database db,
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}) async {
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String query = """
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SELECT tag
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FROM SparkUsedCoinTags
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""";
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if (startNumber > 0) {
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query += " WHERE id >= $startNumber";
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}
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return db.select("$query;");
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}
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static Future<ResultSet> _getUsedCoinTagsCount({
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required Database db,
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}) async {
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const query = """
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SELECT COUNT(*) AS count
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FROM SparkUsedCoinTags;
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""";
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return db.select("$query;");
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}
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static Future<bool> _checkTagIsUsed(
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String tag, {
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required Database db,
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}) async {
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final query = """
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SELECT EXISTS (
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SELECT 1
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FROM SparkUsedCoinTags
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WHERE tag = '$tag'
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) AS tagExists;
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""";
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return db.select("$query;").first["tagExists"] == 1;
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}
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}
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