// SPDX-FileCopyrightText: 2025 The Project Pterodactyl Developers
//
// SPDX-License-Identifier: MPL-2.0

import Foundation
import llbuild2fx

extension Keys.SourceTree {
	struct GetDependencies: BuildKey {
		let sourceTreeId: LLBDataID
		let unitName: UnitName

		typealias ValueType = Set<UnitName>
		
		static let versionDependencies: [any FXVersioning.Type] = [Keys.SourceTree.GetDependencyGraph.self]

		func computeValue(_ ctx: BuildContext<Self>) async throws -> ValueType {
			let graph = try await ctx.request(Keys.SourceTree.GetDependencyGraph(sourceTreeId: sourceTreeId))
			return graph.verticesReachableFrom(unitName)
		}
	}
}