"use strict";

const Promise = require("bluebird");
const express = require("express");
const path = require("path");
const defaultValue = require("default-value");
const moize = require("moize");

const knex = require("knex")(require("../knexfile"));

const createSynchronizer = require("./sync")({ knex: knex });

createSynchronizer("datasheets_products", "datasheet:", (item) => {
	if (item.data.url != null) {
		return {
			id: item.id,
			manufacturer: item.data.manufacturer,
			name: item.data.name,
			description: item.data.description,
			source: defaultValue(item.data.source, "unknown"), // FIXME: Temporary workaround for old data
			url: item.data.url
		};
	} else {
		console.warn(`[warn] Item does not have a URL: ${item.id}`);
		return null;
	}
});

const getDatasheetCount = moize(() => {
	return Promise.try(() => {
		return knex("datasheets_products").count("url");
	}).then((result) => {
		return result[0].count;
	});
}, { maxAge: 1000 * 60 * 1 }); // 1 minute cache

let app = express();

app.set("views", path.join(__dirname, "views"));
app.set("view engine", "jsx");
app.engine("jsx", require("@joepie91/express-react-views").createEngine());

app.use(express.static(path.join(__dirname, "../public")));

app.get("/", (req, res) => {
	res.redirect("/datasheets");
});

app.get("/datasheets", (req, res) => {
	return Promise.try(() => {
		return getDatasheetCount();
	}).then((datasheetCount) => {
		res.render("datasheets/index", {
			datasheetCount: datasheetCount
		});
	});
});

app.post("/search", (req, res) => {
	return Promise.try(() => {
		// return knex.raw(`
		// 	SELECT
		// 		data->>'manufacturer' AS manufacturer,
		// 		data->>'name' AS name,
		// 		data->>'url' AS url,
		// 		data->>'description' AS description,
		// 		data->>'source' AS source
		// 	FROM srap_items WHERE
		// 		id LIKE 'datasheet:%'
		// 		AND lower(data->>'name') LIKE :query
		// 	ORDER BY name
		// 	LIMIT 20
		// `, {
		// 	query: req.query.query.toLowerCase() + "%"
		// });
		return knex.raw(`
			SELECT * FROM datasheets_products WHERE
				lower(name) LIKE :query
			ORDER BY name
			LIMIT 20
		`, {
			query: req.query.query.toLowerCase() + "%"
		});
	}).then((result) => {
		res.json({ results: result.rows });
	});
});

module.exports = app;