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

import Foundation
import PterodactylSyntax
import llbuild2fx
import Logging

extension Keys.Blob {
	public struct ParseDocument: BuildKey {
		public let blobId: LLBDataID
		public init(blobId: LLBDataID) {
			self.blobId = blobId
		}

		public struct ValueType: Codable, FXValue {
			public let tree: PterodactylSyntax.SyntaxTree
			public let diagnostics: [Diagnostic]
		}

		public static let versionDependencies: [any FXVersioning.Type] = [ReadContents.self, Tokenise.self]

		public func computeValue(_ ctx: BuildContext<Self>) async throws -> ValueType {
			let code = try await ctx.request(ReadContents(blobId: blobId))
			let tokens = try await ctx.request(Tokenise(blobId: blobId))
			var parser = Parser(source: code, tokens: tokens)
			PterodactylSyntax.Document.parse(&parser, recovery: [])
			return ValueType(tree: parser.builder.tree, diagnostics: parser.diagnostics)
		}
	}
}