using Strata.SqlTools.Rules.Rule.Expression;

namespace Strata.SqlTools.Rules.Rule.Groups;

/// <summary>
/// Represents a rule group with sequential rule evaluation (WITH semantics).
/// </summary>
public class With : Base
{
    // TODO: revisit whether ordering should be applied here before delegating
    // to the base GetExpressions(); inherit base behavior for now.

    /// <summary>
    /// Merges two BoolExpr expressions using WITH semantics.
    /// </summary>
    /// <param name="left">The left BoolExpr expression.</param>
    /// <param name="right">The right BoolExpr expression.</param>
    /// <returns>A WITH expression combining both expressions.</returns>
    protected override BoolExpr Merge(BoolExpr left, BoolExpr right) => new Expression.With(left, right);

    /// <summary>
    /// Initializes a new instance of the <see cref="With"/> class.
    /// </summary>
    /// <param name="rules">The collection of rules to include in this WITH group.</param>
    public With(IEnumerable<IRule> rules) : base(rules) { }
}