using WxAgent.Core;
using Xunit;

namespace WxAgent.Core.Tests;

public sealed class AccountBindingMatcherTests
{
    [Fact]
    public void PrefersExactWechatIdOverNickname()
    {
        var result = AccountBindingMatcher.Match(new UiAccountIdentity("wxid-a", "Same"),
        [new("db-1", "wxid-a", "Other"), new("db-2", "wxid-b", "Same")]);
        Assert.True(result.IsMatched); Assert.Equal("db-1", result.AccountId); Assert.Equal("wechatId", result.Strategy);
    }

    [Fact]
    public void UsesUniqueNicknameOnlyWhenWechatIdIsUnavailable()
    {
        var result = AccountBindingMatcher.Match(new UiAccountIdentity(null, " Alice "),
        [new("db-1", null, "Alice"), new("db-2", null, "Bob")]);
        Assert.True(result.IsMatched); Assert.Equal("db-1", result.AccountId); Assert.Equal("nickname", result.Strategy);
    }

    [Fact]
    public void RejectsDuplicateNicknameAndConflictingDuplicateWechatId()
    {
        var duplicateName = AccountBindingMatcher.Match(new UiAccountIdentity(null, "Alice"),
        [new("db-1", null, "Alice"), new("db-2", null, "Alice")]);
        var duplicateId = AccountBindingMatcher.Match(new UiAccountIdentity("wxid-a", "Alice"),
        [new("db-1", "wxid-a", "One"), new("db-2", "wxid-a", "Two")]);
        Assert.False(duplicateName.IsMatched); Assert.False(duplicateId.IsMatched);
    }
}