import Foundation
import UltraMeshCore

do {
    signal(SIGPIPE, SIG_IGN)
    let arguments = Array(CommandLine.arguments.dropFirst())
    var stateURL = FileManager.default.homeDirectoryForCurrentUser
        .appendingPathComponent("Library/Application Support/UltraMesh")
    var socketPath: String?
    var index = 0
    while index < arguments.count {
        guard index + 1 < arguments.count else { throw UMNError.message("missing value for \(arguments[index])") }
        if arguments[index] == "--state-dir" { stateURL = URL(fileURLWithPath: arguments[index + 1]) }
        else if arguments[index] == "--socket" { socketPath = arguments[index + 1] }
        else { throw UMNError.message("unknown option \(arguments[index])") }
        index += 2
    }
    let daemon = try MeshDaemon(baseURL: stateURL, socketPath: socketPath)
    try daemon.start()
    signal(SIGINT, SIG_IGN); signal(SIGTERM, SIG_IGN)
    let source = DispatchSource.makeSignalSource(signal: SIGINT, queue: .main)
    let term = DispatchSource.makeSignalSource(signal: SIGTERM, queue: .main)
    source.setEventHandler { daemon.stop(); exit(0) }
    term.setEventHandler { daemon.stop(); exit(0) }
    source.resume(); term.resume()
    dispatchMain()
} catch {
    FileHandle.standardError.write(Data("umnd: \(error.localizedDescription)\n".utf8))
    exit(1)
}