44 lines
2.0 KiB
C#
44 lines
2.0 KiB
C#
namespace WxAgent.Core;
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public sealed record UiAccountIdentity(string? WechatId, string? Nickname);
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public sealed record DatabaseAccountIdentity(string AccountId, string? WechatId, string? Nickname);
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public sealed record AccountMatch(string? AccountId, string Strategy, bool IsUnique)
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{
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public bool IsMatched => AccountId is not null && IsUnique;
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}
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public static class AccountBindingMatcher
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{
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public static AccountMatch Match(UiAccountIdentity ui, IReadOnlyList<DatabaseAccountIdentity> accounts)
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{
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ArgumentNullException.ThrowIfNull(ui);
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ArgumentNullException.ThrowIfNull(accounts);
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var wechatId = Normalize(ui.WechatId);
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if (wechatId is not null)
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{
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var matches = accounts.Where(a => string.Equals(Normalize(a.WechatId), wechatId, StringComparison.OrdinalIgnoreCase)).ToArray();
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if (matches.Length == 1) return new AccountMatch(matches[0].AccountId, "wechatId", true);
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if (matches.Length > 1) return new AccountMatch(null, "wechatId", false);
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}
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var nickname = Normalize(ui.Nickname);
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if (nickname is null) return new AccountMatch(null, "none", false);
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var nicknameMatches = accounts.Where(a => string.Equals(Normalize(a.Nickname), nickname, StringComparison.Ordinal)).ToArray();
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return nicknameMatches.Length == 1
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? new AccountMatch(nicknameMatches[0].AccountId, "nickname", true)
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: new AccountMatch(null, nicknameMatches.Length == 0 ? "none" : "nickname", false);
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}
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public static bool IsUniquelyMatchedToAccount(
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string expectedAccountId,
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UiAccountIdentity boundIdentity,
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IReadOnlyList<DatabaseAccountIdentity> databaseAccounts)
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{
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if (string.IsNullOrWhiteSpace(expectedAccountId)) return false;
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var match = Match(boundIdentity, databaseAccounts);
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return match.IsMatched && string.Equals(match.AccountId, expectedAccountId, StringComparison.OrdinalIgnoreCase);
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}
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private static string? Normalize(string? value) => string.IsNullOrWhiteSpace(value) ? null : value.Trim();
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}
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