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using System.ComponentModel;
namespace ByteAether.QueryLink;
/// <summary>
/// A collection of filter and order definitions.
/// </summary>
public class Definitions
{
/// <summary>
/// Gets or sets the collection of filter definitions.
/// </summary>
public IEnumerable<FilterDefinition<object?>> Filters { get; set; } = [];
/// <summary>
/// Gets or sets the collection of order definitions.
/// </summary>
public IEnumerable<OrderDefinition> Orders { get; set; } = [];
/// <summary>
/// Defines the operators used in filter definitions.
/// </summary>
public enum FilterOperator
{
/// <summary>
/// Equals operator.
/// </summary>
[Description("=")] Eq,
/// <summary>
/// Not equals operator.
/// </summary>
[Description("!=")] Neq,
/// <summary>
/// Greater than operator.
/// </summary>
[Description(">")] Gt,
/// <summary>
/// Greater than or equals operator.
/// </summary>
[Description(">=")] Gte,
/// <summary>
/// Less than operator.
/// </summary>
[Description("<")] Lt,
/// <summary>
/// Less than or equals operator.
/// </summary>
[Description("<=")] Lte,
/// <summary>
/// Has operator.
/// </summary>
[Description("=*")] Has,
/// <summary>
/// Not has operator.
/// </summary>
[Description("!*")] Nhas,
/// <summary>
/// In operator.
/// </summary>
[Description("[]")] In,
/// <summary>
/// Not in operator.
/// </summary>
[Description("![]")] Nin,
/// <summary>
/// Starts with operator.
/// </summary>
[Description("^")] Sw,
/// <summary>
/// Not starts with operator.
/// </summary>
[Description("!^")] Nsw,
/// <summary>
/// Ends with operator.
/// </summary>
[Description("$")] Ew,
/// <summary>
/// Not ends with operator.
/// </summary>
[Description("!$")] New,
}
/// <summary>
/// A base filter definition.
/// </summary>
public abstract record FilterDefinition();
/// <summary>
/// A filter definition with a specific type.
/// </summary>
/// <typeparam name="T">The type of the filter value.</typeparam>
/// <param name="Name">The name of the filter.</param>
/// <param name="Operation">The filter operation.</param>
/// <param name="Value">The value of the filter.</param>
public record FilterDefinition<T>(string Name, FilterOperator Operation, T Value)
: FilterDefinition;
/// <summary>
/// An order definition.
/// </summary>
/// <param name="Name">The name of the order.</param>
/// <param name="IsReversed">Indicates whether the order is reversed.</param>
public record OrderDefinition(string Name, bool IsReversed);
}