using FluentAssertions;
using InboxIntel.Application.Search;
using Xunit;

namespace InboxIntel.UnitTests;

public class GmailQueryParserTests
{
    [Fact]
    public void Parses_operators_and_free_text()
    {
        var r = GmailQueryParser.Parse("from:github.com is:unread has:attachment quarterly report");

        r.Sender.Should().Be("github.com");
        r.IsUnread.Should().BeTrue();
        r.HasAttachments.Should().BeTrue();
        r.Query.Should().Be("quarterly report");
    }

    [Fact]
    public void Parses_date_range()
    {
        var r = GmailQueryParser.Parse("after:2025-01-01 before:2025-02-01");
        r.From.Should().Be(new DateOnly(2025, 1, 1));
        r.To.Should().Be(new DateOnly(2025, 2, 1));
    }

    [Fact]
    public void Empty_query_yields_empty_filters()
    {
        var r = GmailQueryParser.Parse("   ");
        r.Sender.Should().BeNull();
        r.Query.Should().BeNull();
    }

    [Fact]
    public void Is_read_sets_unread_false()
    {
        GmailQueryParser.Parse("is:read").IsUnread.Should().BeFalse();
    }
}