Server.panes(where:)

// swift-tools-version: 6.2
import PackageDescription

let package = Package(
    name: "ApiExample",
    platforms: [.macOS(.v13)],
    dependencies: [
        .package(url: "https://github.com/libtmux/libtmux-swift.git", from: "0.1.1")
    ],
    targets: [
        .executableTarget(
            name: "ApiExample",
            dependencies: [
                .product(name: "LibTmux", package: "libtmux-swift"),
                .product(name: "TmuxFixture", package: "libtmux-swift"),
            ],
            path: "Sources"
        )
    ]
)

import Foundation
import LibTmux
import TmuxFixture

@main
struct ApiQueryPanes {
    static func main() async {
        do {
            try await withTmuxServer { @Sendable server in
                guard let original = try await server.panes().first else {
                    throw ExampleError.paneMissing
                }
                _ = try await server.split(original, direction: .right)
                let expression = try FilterExpr<Pane>.where(\.isActive, .equals(true))
                let active = try await server.panes(where: expression)
                print("Active panes: \(active.count)")
                print("Original stays active: \(active.contains { $0.id == original.id })")
            }
        } catch {
            FileHandle.standardError.write(Data("Example failed: \(error)\n".utf8))
            exit(EXIT_FAILURE)
        }
    }

    enum ExampleError: Error {
        case paneMissing
    }
}

Active panes: 1
Original stays active: true