azure-search-blog-post-1.cs

public class PackageModel
{
    private const string DateFormat = "yyyy-MM-dd";

    public PackageModel()
    {
    }

    public PackageModel(Guid id) => Id = id.ToString();

    public PackageModel(PackageDto dto)
    {
        Category = dto.Category != null ? new CategoryModel(dto.Category) : null;
        Description = dto.Description ?? string.Empty;
        Id = dto.Id.ToString();
        CreatedOn = (dto.CreatedOn ?? new DateTime()).ToString(DateFormat);
        LicenseTypes = dto.LicenseTypes?.ToArray() ?? Array.Empty<string>();
        PackageId = dto.PackageId;
        PackageType = dto.PackageType ?? Domain.Entities.PackageType.Package.ToString();
        Tags = dto.Tags?.OrderBy(x => x).ToArray() ?? Array.Empty<string>();
        Title = dto.Title ?? string.Empty;
    }

    [SearchableField(IsFacetable = true, IsFilterable = true)]
    public CategoryModel? Category { get; set; }

    [SearchableField]
    public string Description { get; set; } = string.Empty;

    [SimpleField(IsKey = true)]
    public string Id { get; set; } = string.Empty;

    [SimpleField(IsSortable = true)]
    public string CreatedOn { get; set; } = string.Empty;

    [SimpleField(IsFilterable = true, IsFacetable = true)]
    public string[] LicenseTypes { get; set; } = Array.Empty<string>();

    [SearchableField]
    public string PackageId { get; set; } = string.Empty;

    [SimpleField(IsFilterable = true, IsFacetable = true)]
    public string PackageType { get; set; } = Domain.Entities.PackageType.Package.ToString();

    [SearchableField(IsFilterable = true, IsFacetable = true)]
    public string[] Tags { get; set; } = Array.Empty<string>();

    [SearchableField(IsSortable = true)]
    public string Title { get; set; } = string.Empty;

    public PackageDto ToPackageDto(PackageSearchQuery query) => new PackageDto(Guid.Parse(Id), PackageId)
    {
        Category = Category?.ToCategoryDto(),
        Description = PackageDto.IsFieldRequested(nameof(PackageDto.Description), query.Fields) ? Description : null,
        CreatedOn = PackageDto.IsFieldRequested(nameof(PackageDto.CreatedOn), query.Fields) ? ParseRequiredDate(CreatedOn) : null,
        LicenseTypes = PackageDto.IsFieldRequested(nameof(PackageDto.LicenseTypes), query.Fields) ? LicenseTypes.ToList().AsReadOnly() : null,
        PackageType = PackageDto.IsFieldRequested(nameof(PackageDto.PackageType), query.Fields) ? PackageType : null,
        Tags = PackageDto.IsFieldRequested(nameof(PackageDto.Tags), query.Fields) ? Tags.ToList().AsReadOnly() : null,
        Title = PackageDto.IsFieldRequested(nameof(PackageDto.Tags), query.Fields) ? Title : null,
    };

    private DateTime ParseRequiredDate(string dateValue) =>
        string.IsNullOrWhiteSpace(dateValue) ? DateTime.MinValue : DateTime.ParseExact(dateValue, DateFormat, CultureInfo.InvariantCulture);
}