package org.jetbrains.kotlin.analysis.api.platform

import org.jetbrains.kotlin.analysis.api.platform.utils.mergeOnly

/**
 * [KotlinCompositeProviderFactory] is used by various [KotlinCompositeProvider]s to share code related to provider creation and flattening.
 */
public class KotlinCompositeProviderFactory<P : KotlinComposableProvider>(
    private val emptyProvider: P,
    private val composeProviders: (List<P>) -> P,
) {

    }

    public companion object {
        public val factory: KotlinCompositeProviderFactory<KotlinPackageProvider> = KotlinCompositeProviderFactory(
            KotlinEmptyPackageProvider,
            ::KotlinCompositePackageProvider,
        )

        return providers.flatMapToNullableSet { it.computePackageNamesWithTopLevelCallables() }
    }

    public companion object {
        public val factory: KotlinCompositeProviderFactory<KotlinDeclarationProvider> = KotlinCompositeProviderFactory(
            KotlinEmptyDeclarationProvider,
            ::KotlinCompositeDeclarationProvider,
        )