package com.stario10module

import androidx.annotation.Nullable
import com.facebook.react.bridge.*
import com.facebook.react.modules.core.DeviceEventManagerModule
import com.starmicronics.stario10.*


class StarDeviceDiscoveryManagerWrapper internal constructor(context: ReactApplicationContext) :
    ReactContextBaseJavaModule(context) {
    override fun getName(): String {
        return "StarDeviceDiscoveryManagerWrapper"
    }

    @ReactMethod
    fun init(interfaceTypes: ReadableArray, promise: Promise) {
        val typeList = mutableListOf<InterfaceType>()

        for (type in StarIO10ValueConverter.toList<String>(interfaceTypes)) {
            typeList.add(StarIO10ValueConverter.toInterfaceType(type))
        }

        try {
            val manager =
                StarDeviceDiscoveryManagerFactory.create(typeList, reactApplicationContext)
            val identifier = InstanceManager.set(manager)

            promise.resolve(identifier)
        } catch (e: StarIO10Exception) {
            val exceptionIdentifier = InstanceManager.set(e)
            promise.reject(exceptionIdentifier, e)
        }
    }

    @ReactMethod
    fun dispose(identifier: String, promise: Promise) {
        InstanceManager.remove(identifier)
        promise.resolve(0)
    }

    @ReactMethod
    fun addListener(eventName: String) {
        // Set up any upstream listeners or background tasks as necessary
    }

    @ReactMethod
    fun removeListeners(count: Int) {
        // Remove upstream listeners, stop unnecessary background tasks
    }

    @ReactMethod
    fun startDiscovery(identifier: String, discoveryTime: Int, promise: Promise) {
        val manager = InstanceManager.get(identifier)

        if (manager is StarDeviceDiscoveryManager) {
            manager.discoveryTime = discoveryTime

            try {
                manager.callback = object : StarDeviceDiscoveryManager.Callback {
                    override fun onPrinterFound(printer: StarPrinter) {
                        val params = Arguments.createMap()
                        params.putString(EventParameter.KEY_IDENTIFIER, identifier)
                        params.putString(
                            EventParameter.KEY_INTERFACE_TYPE,
                            StarIO10ValueConverter.toString(printer.connectionSettings.interfaceType)
                        )
                        params.putString(
                            EventParameter.KEY_CONNECTION_IDENTIFIER,
                            printer.connectionSettings.identifier
                        )
                        params.putString(
                            EventParameter.KEY_MODEL,
                            StarIO10ValueConverter.toString(
                                printer.information?.model ?: StarPrinterModel.Unknown
                            )
                        )
                        params.putString(
                            EventParameter.KEY_EMULATION,
                            StarIO10ValueConverter.toString(
                                printer.information?.emulation ?: StarPrinterEmulation.Unknown
                            )
                        )
                        params.putMap(
                            EventParameter.KEY_RESERVED,
                            StarIO10ValueConverter.toWritableMap(
                                printer.information?.reserved ?: mapOf<String, Any>()
                            )
                        )

                        params.putString(
                            EventParameter.KEY_LAN_MAC_ADDRESS,
                            printer.information?.detail?.lan?.macAddress ?: null
                        )

                        params.putString(
                            EventParameter.KEY_LAN_IP_ADDRESS,
                            printer.information?.detail?.lan?.ipAddress ?: null
                        )

                        params.putString(
                            EventParameter.KEY_BT_ADDRESS,
                            printer.information?.detail?.bluetooth?.address ?: null
                        )

                        params.putString(
                            EventParameter.KEY_BT_DEVICE_NAME,
                            printer.information?.detail?.bluetooth?.deviceName ?: null
                        )

                        params.putString(
                            EventParameter.KEY_USB_PORT_NAME,
                            printer.information?.detail?.usb?.portName ?: null
                        )
                        
                        params.putString(
                            EventParameter.KEY_USB_USB_SN,
                            printer.information?.detail?.usb?.usbSerialNumber ?: null
                        )

                        sendEvent(EventParameter.NAME_PRINTER_FOUND, params)
                    }

                    override fun onDiscoveryFinished() {
                        val params = Arguments.createMap()
                        params.putString(EventParameter.KEY_IDENTIFIER, identifier)

                        sendEvent(EventParameter.NAME_DISCOVERY_FINISHED, params)
                    }
                }

                manager.startDiscovery()

                promise.resolve(0)
            } catch (e: StarIO10Exception) {
                val exceptionIdentifier = InstanceManager.set(e)
                promise.reject(exceptionIdentifier, e)
            }
        } else {
            promise.reject(StarIO10Exception("Identifier error"))
        }
    }

    @ReactMethod
    fun stopDiscovery(identifier: String, promise: Promise) {
        val manager = InstanceManager.get(identifier)

        if (manager is StarDeviceDiscoveryManager) {
            try {
                manager.stopDiscovery()
                promise.resolve(0)
            } catch (e: StarIO10Exception) {
                val exceptionIdentifier = InstanceManager.set(e)
                promise.reject(exceptionIdentifier, e)
            }
        } else {
            promise.reject(StarIO10Exception("Identifier error"))
        }
    }

    private fun sendEvent(eventName: String, @Nullable params: WritableMap) {
        reactApplicationContext
            .getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter::class.java)
            .emit(eventName, params)
    }
}