package fr.celticinfo.lox

/**
 * The LoxClass class represents a class in the Lox language.
 */
class LoxClass(private val name: String, private val superClass: LoxClass?, private val methods: Map<String, LoxFunction>) : LoxCallable {
    override fun call(interpreter: Interpreter, arguments: List<Any?>): Any? {
        val instance = LoxInstance(this)
        val initializer = findMethod("init")
        initializer?.bind(instance)?.call(interpreter, arguments)
        return instance
    }

    fun findMethod(name: String): LoxFunction? {
        if (methods.containsKey(name)) {
            return methods[name]
        }
        if (superClass != null) {
            return superClass.findMethod(name)
        }
        return null
    }

    override fun arity() = findMethod("init")?.arity() ?: 0

    override fun toString() = name
}