var path = require("path");
var sep = path.sep;

module.exports = function (data, api) {
	data.tibia.lv2 = {
		prefixes: [
			{ id: "doap", uri: "http://usefulinc.com/ns/doap#" },
			{ id: "lv2", uri: "http://lv2plug.in/ns/lv2core#" },
			{ id: "rdf", uri: "http://www.w3.org/1999/02/22-rdf-syntax-ns#" },
			{ id: "rdfs", uri: "http://www.w3.org/2000/01/rdf-schema#" }
		],
		ports: [],

		ttlURI: function (uri) {
			return uri.charAt(0) == "@" ? uri.substring(1) : "<" + uri + ">";
		},

		expandURI: function (uri) {
			if (uri.charAt(0) != "@")
				return uri;
			var i = uri.indexOf(":");
			var p = uri.substring(1, uri.indexOf(":"));
			return data.tibia.lv2.prefixes.find(x => x.id == p).uri + uri.substring(i + 1);
		}
	};

	for (var id in data.lv2.prefixes)
		data.tibia.lv2.prefixes.push({ id: id, uri: data.lv2.prefixes[id] });

	var symbols = {};
	function getSymbol(name) {
		name = name.toLowerCase().replace(/[^0-9a-z]/g, "_");
		var n = name;
		var i = 1;
		while (n in symbols) {
			n = name + i;
			i++;
		}
		return n;
	}

	for (var i = 0; i < data.product.parameters.length; i++) {
		var p = data.product.parameters[i];
		var e = { type: "control", direction: p.direction, name: p.name, defaultValue: p.defaultValue };
		e.symbol = getSymbol(p.shortName);
		data.tibia.lv2.ports.push(e);
	}

	var audioBuses = data.product.buses.filter(x => x.type == "audio");
	for (var i = 0; i < audioBuses.length; i++) {
		var b = audioBuses[i];
		for (var j = 0; j < b.channels; j++) {
			var e = { type: "audio", direction: b.direction, name: b.name };
			e.symbol = getSymbol(b.name);
			data.tibia.lv2.ports.push(e);
		}
	}

	data.tibia.lv2.ports.sort((a, b) => a.type != b.type ? (a.type == "audio" ? -1 : 1) : (a.direction != b.direction ? (a.direction == "input" ? -1 : 1) : 0));

	api.generateFileFromTemplateFile(`data${sep}manifest.ttl`, `data${sep}manifest.ttl`, data);
	api.copyFile(`src${sep}lv2.c`, `src${sep}lv2.c`);
	api.generateFileFromTemplateFile(`src${sep}data.h`, `src${sep}data.h`, data);
	api.copyFileIfNotExists(`src${sep}plugin.h`, `src${sep}plugin.h`);
};