//
//  HIDExample_CoreHID.swift
//  HIDExample_CoreHID
//
//  Created by Edgars Klepers on 2/28/25.
//
//   This example demonstrates CoreHID throwing an unknown error when trying to get a specific report.
//   Required Hardware:  A Logitech G600 Gaming Mouse (https://support.logi.com/hc/en-ca/articles/360023465173-Logitech-G600-MMO-Gaming-Mouse-Technical-Specifications)
//   The purpose is to detect the macro buttons labeled G9-G20 on the side.


import Foundation
import CoreHID

@main struct HIDExample_CoreHID {

    static func main() async throws {

        let DeviceVendorId: UInt32 = 0x046D // Logitech
        let DeviceProductId: UInt32 = 0xC24A // Gaming Mouse G600

        let deviceUsages =  [
            HIDUsage(page: 0xFF80, usage: 0x80)
        ]
        let deviceManager = HIDDeviceManager()
        let matchingCriteria : HIDDeviceManager.DeviceMatchingCriteria = .init(primaryUsage: HIDUsage(page: 0x01, usage: 0x06) , deviceUsages:deviceUsages, vendorID: DeviceVendorId, productID: DeviceProductId)
        let reportId = HIDReportID(rawValue: 0x80)

        var deviceRef: HIDDeviceClient.DeviceReference? = nil

        for try await notification in await deviceManager.monitorNotifications(matchingCriteria: [matchingCriteria]) {
            switch notification {
            case .deviceMatched(let dr):
                if deviceRef != nil {continue}
                deviceRef = dr
                let deviceClient = HIDDeviceClient(deviceReference: deviceRef!)
                let deviceName = await deviceClient!.product!
                print("DeviceName: \(deviceName)")
                let elemToMon = await deviceClient?.elements.filter({ ele in
                    return  ele.usage.page == 0xFF80 && ele.usage.usage == 0x80
                })
                assert(!(elemToMon!.isEmpty)) // make sure that this is the correct device.


                // ***** This errors with CoreHid.HIDDeviceError.unknown(0xE0005000) *****
                let report = try await deviceClient!.dispatchGetReportRequest(type: .input, id: reportId)
                assert(!report.isEmpty)


                // ***** This also errors with CoreHid.HIDDeviceError.unknown(0xE0005000) *****
                let request = HIDDeviceClient.RequestElementUpdate(elements: elemToMon!)
                let results = await deviceClient!.updateElements([request])
                let rval = try results[request]?.get() // <-----  error is thrown here
                print ("Report \(String(describing: rval))")

            default:
                continue

            }
        }

    }
}