const { schema2pid } = require('../lib/db/connection');
const { listen } = require('../ws/db');
const { event } = require('../lib/db');

function start () {
	let prevPos = null;
	
	listen(["realtime"], function (data) {
		if (!(data.payload && data.payload.new && data.payload.new.meta)) {
			console.log("Wrong event", data);
			return;
		}
		
		const pos = data.payload.new.meta;
		
		if (prevPos) {
			if (pos.lineStatus == "online") {
				if (prevPos.lineStatus != "online") {
					// FIXME TODO Check if there are already FSP, FGSP events for this sequence
					// Tag this as FSP/FGSP
					const remarks = `SEQ ${pos._sequence}, SOL ${pos.lineName}, BSP: ${(pos.speed*3.6/1.852).toFixed(1)} kt, Water depth: ${Number(pos.waterDepth).toFixed(0)} m.`;
					const payload = {
						type: "sequence",
						sequence: pos._sequence,
						point: pos._point,
						remarks,
						labels: [ "FSP", "FGSP" ]
					}
					schema2pid(pos._schema).then(projectId => event.post(projectId, payload));
	// 				console.log("post fsp", pos._schema);
				}
			} else {
				if (prevPos.lineStatus == "online") {
					// FIXME TODO Check if there are already LSP, LGSP events for this sequence
					// Tag this as LSP/LGSP
					const remarks = `SEQ ${prevPos._sequence}, EOL ${prevPos.lineName}, BSP: ${(prevPos.speed*3.6/1.852).toFixed(1)} kt, Water depth: ${Number(prevPos.waterDepth).toFixed(0)} m.`;
					const payload = {
						type: "sequence",
						sequence: prevPos._sequence,
						point: prevPos._point,
						remarks,
						labels: [ "LSP", "LGSP" ]
					}
					schema2pid(prevPos._schema).then(projectId => event.post(projectId, payload));
	// 				console.log("post lsp", prevPos._schema);
				}
			}
		}
		
		prevPos = JSON.parse(JSON.stringify(pos));
	});
	
	console.log("Events manager started");
}

module.exports = { start }