/** 
 * Implementation of a simple client for simple_rotator_interface_v -- https://remoteqth.com/w/doku.php?id=simple_rotator_interface_v
 */
export default class RotClient {
	constructor(label, clientConfig) {
		this.label = label;
		this.ip = clientConfig.ip;
		this.bands = clientConfig.bands;
		this.startOffset = null;

		setInterval(async () => {
			console.log(`${this.label}: azi ${await this.readAzi()}, adc ${await this.readAdc()}, status ${await this.readStatus()}`);
		}, 1000);
	}

	hasBand(band) {
		return this.bands.includes(band);
	}

	turn(az) {
		fetch(`http://${this.ip}:88/`, {
			"body": "ROT=" + az,
			"method": "POST",
		}).catch(() => {});
		console.log(`Turning ${this.label} to ${az}°...`);
	}

	async readAzi() {
		try {
			if (this.startOffset === null) {
				this.startOffset = await this.readOffset();
				console.log(`${this.label} Set the initial offset to ${this.startOffset}.`);
			}
			const resp = await fetch(`http://${this.ip}:88/readAZ`);
			return this.startOffset + parseInt(await resp.text(), 10);
		} catch(ex) {
			console.error(`${this.label}: Failed to read azimuth:`, ex);
			return null;
		}
	}

	async readAdc() {
		try {
			const resp = await fetch(`http://${this.ip}:88/readADC`);
			return parseFloat(await resp.text());
		} catch(ex) {
			console.error(`${this.label}: Failed to read ADC:`, ex);
			return null;
		}
	}

	async readStatus() {
		try {
			const resp = await fetch(`http://${this.ip}:88/readStat`);
			return parseInt(await resp.text(), 10);
		} catch(ex) {
			console.error(`${this.label}: Failed to read status:`, ex);
			return null;
		}
	}

	async readOffset() {
		try {
			const resp = await fetch(`http://${this.ip}:88/readStart`);
			return parseInt(await resp.text(), 10);
		} catch(ex) {
			console.error(`${this.label}: Failed to read the initial offset:`, ex);
			return null;
		}
	}
	

}