namespace Strata.SqlTools.Rules.Rule.Expression;

/// <summary>
/// Represents an ANY expression that checks if any element in a collection satisfies a condition.
/// </summary>
public class Any : BoolExpr
{
    /// <summary>
    /// Gets the collection property being evaluated.
    /// </summary>
    public CollectionProperty CollectionProperty { get; }

    /// <summary>
    /// Gets the BoolExpr expression that defines the condition to check.
    /// </summary>
    public BoolExpr BoolExpr { get; }

    /// <summary>
    /// Gets the parameter used in the predicate expression.
    /// </summary>
    public Parameter PredicateParameter { get; }

    /// <summary>
    /// Initializes a new instance of the <see cref="Any"/> class with a function.
    /// </summary>
    /// <param name="collectionProperty">The collection property to evaluate.</param>
    /// <param name="func">A function that defines the condition to check for each element.</param>
    public Any(CollectionProperty collectionProperty, Func<Parameter, BoolExpr> func)
    {
        CollectionProperty = collectionProperty;
        PredicateParameter = new Parameter("p");
        BoolExpr = func(PredicateParameter);
    }

    /// <summary>
    /// Initializes a new instance of the <see cref="Any"/> class with a BoolExpr expression.
    /// </summary>
    /// <param name="collectionProperty">The collection property to evaluate.</param>
    /// <param name="boolExpr">The BoolExpr expression defining the condition.</param>
    public Any(CollectionProperty collectionProperty, BoolExpr boolExpr)
        : this(collectionProperty, boolExpr, new Parameter("p"))
    {

    }

    /// <summary>
    /// Initializes a new instance of the <see cref="Any"/> class.
    /// </summary>
    /// <param name="collectionProperty">The collection property to evaluate.</param>
    /// <param name="boolExpr">The BoolExpr expression defining the condition.</param>
    /// <param name="predicateParameter">The parameter used in the predicate expression.</param>
    public Any(CollectionProperty collectionProperty, BoolExpr boolExpr, Parameter predicateParameter)
    {
        CollectionProperty = collectionProperty;
        BoolExpr = boolExpr;
        PredicateParameter = predicateParameter;
    }

    /// <inheritdoc/>
    public override T Accept<T>(IVisitor<T> visitor) => visitor.VisitAny(this);
}