const {
	HCSwitch
} = require('homecontrol-control-base');

const TPLink = require('tplink-smartplug-node');

class HCTPLink extends HCSwitch {
	constructor(config) {
		super(config);

		if (!("address" in this._configuration)) {
			throw new Error(`Required configuration field "address" is missing"`);
		}
	}

	turnOn() {
		let tp = new TPLink(this._configuration.address);

		return tp.turnOn().then(resp => {
			if (resp.system.set_relay_state.err_code == 0) {
				this._state.on = true;
				this.emit("state change", this.state);
			}
		});
	}

	turnOff() {
		let tp = new TPLink(this._configuration.address);

		return tp.turnOff().then(resp => {
			if (resp.system.set_relay_state.err_code == 0) {
				this._state.on = false;
				this.emit("state change", this.state);
			}
		});
	}

	pullState() {
		let tp = new TPLink(this._configuration.address);

		return tp.query().then(resp => {
			let hashBefore = this.state.hash;

			this._state.on = (resp.system.get_sysinfo.relay_state == 1);

			if (this.state.hash != hashBefore) {
				this.emit("state change", this.state);
			}
		});
	}
}

module.exports = HCTPLink;