import { Service, PlatformAccessory, CharacteristicValue } from 'homebridge'

import { accessory } from './accessory'
import { device } from './device'
import { httpRequest, response } from './httpPromise'
import { domoticaPlatform } from './platform'

export class smokeDetectorAccessory extends accessory {
	private service: Service

    private state = {
		SmokeDetected: false,
		Tampered: false, // TODO
		LowBattery: false,
		Active: false
	}

	static async discoverDevices(platform: domoticaPlatform): Promise<device[]> {
		return new Promise((resolve, reject) => {
			let smokedetectorDevices: device[] = []

			httpRequest("http://" + platform.config.hostname + ':' + platform.config.port + '/API/inventory/smokedetector')
				.then((response) => {
					let devices = JSON.parse(response.body)

					for (const device of devices) {
						if (device.enabled == "true") {
							let object: device = {
								type: "SmokeDetector",
								typeId: device.id,
								uniqueId: "SmokeDetector." + device.id,
								deviceName: device.name,
								switchable: "false",
								dimmable: "false",
								detailedType: device.type
							}
							smokedetectorDevices.push(object)
						}
					}
				
					resolve(smokedetectorDevices)
				})
				.catch((error) => {
					reject('smokeDetectorAccessory::discoverDevices Error ->' + error)
				})
		})
	}

	constructor(
		private readonly platform: domoticaPlatform,
		private readonly accessory: PlatformAccessory,
	) {
		super("SmokeDetector", accessory.context.device.typeId)
		this.accessory.getService(this.platform.Service.AccessoryInformation)!
			.setCharacteristic(this.platform.Characteristic.Manufacturer, 'SmokeDetector')
			.setCharacteristic(this.platform.Characteristic.Model, 'ZSDR-850')
			.setCharacteristic(this.platform.Characteristic.SerialNumber, '10000' + accessory.context.device.typeId)

		this.service = this.accessory.getService(this.platform.Service.SmokeSensor) || this.accessory.addService(this.platform.Service.SmokeSensor)

		this.service.getCharacteristic(this.platform.Characteristic.SmokeDetected)
			.onGet(this.getSmokeDetected.bind(this))
		
		this.service.getCharacteristic(this.platform.Characteristic.StatusLowBattery)
			.onGet(this.getLowBattery.bind(this))

		this.service.getCharacteristic(this.platform.Characteristic.StatusActive)
			.onGet(this.getActive.bind(this))

		this.setName(accessory.context.device.deviceName)
		this.update()
	}

	setName(name) {
		this.service.setCharacteristic(this.platform.Characteristic.Name, name)
	}

	setValue(key, value) {
		if (key == "state" && value != "") {
			if (value == "smoke") {
				this.state.SmokeDetected = true
			} else {
				this.state.SmokeDetected = false
			}
			this.service.updateCharacteristic(this.platform.Characteristic.SmokeDetected, this.state.SmokeDetected)
		}
		else if (key == "battery" && value != "") {
			if (value < 25) {
				this.state.LowBattery = true
			} else {
				this.state.LowBattery = false
			}
			this.service.updateCharacteristic(this.platform.Characteristic.StatusLowBattery, this.state.LowBattery)
		}
		else if (key == "online" && value != "") {
			if (value == "false") {
				this.state.Active = false
			} else {
				this.state.Active = true
			}
			this.service.updateCharacteristic(this.platform.Characteristic.StatusActive, this.state.Active)
		}
	}

	update() {
		const data = JSON.stringify([{
			type: 'smokedetector',
			query: 'state'
		}])

 		httpRequest("http://" + this.platform.config.hostname + ':' + this.platform.config.port + '/API/Status', data)
			.then((response) => {
				const devices = JSON.parse(response.body)

				if (devices.hasOwnProperty('smokedetector')) {
					for (const device of devices.smokedetector) {
						if (device.id == this.accessory.context.device.typeId) {
							if (device.state == 'smoke') {
								this.state.SmokeDetected = true
							} else {
								this.state.SmokeDetected = false
							}
							if (device.battery < 25) {
								this.state.LowBattery = true
							} else {
								this.state.LowBattery = false
							}

							if (device.online == "false") {
								this.state.Active = false
							} else {
								this.state.Active = true
							}

							this.service.updateCharacteristic(this.platform.Characteristic.SmokeDetected, this.state.SmokeDetected)
							this.service.updateCharacteristic(this.platform.Characteristic.StatusLowBattery, this.state.LowBattery)
							this.service.updateCharacteristic(this.platform.Characteristic.StatusActive, this.state.Active)

							break
						}
					}
				}
			})
			.catch((error) => {
				this.platform.log.debug('smokeDetectorAccessory::update Error ->' + error)
			})
	}

	getSmokeDetected(): CharacteristicValue {
		return this.state.SmokeDetected
	}

	getLowBattery(): CharacteristicValue {
		return this.state.LowBattery
	}

	getActive(): CharacteristicValue {
		return this.state.Active
	}
}