import slugg from 'slugg'

const parseLine = ({profile}, p) => {
	if (!p) return null // todo: handle this upstream
	const name = p.line || p.addName || p.name || null // wtf
	const res = {
		type: 'line',
		// This is terrible, but FPTF demands an ID. Let's pray for HAFAS.
		id: (
			p.prodCtx && p.prodCtx.lineId && slugg(p.prodCtx.lineId.trim())
			|| name && slugg(name.trim())
			|| null
		),
		// todo: what is p.prodCtx.matchId? use as `id`? expose it.
		fahrtNr: p.prodCtx && p.prodCtx.num || null,
		name,
		public: true
	}
	// todo: what is p.number?
	// todo: what is p.prodCtx.catCode?

	if (p.prodCtx && 'string' === typeof p.prodCtx.admin) {
		res.adminCode = p.prodCtx.admin
	}

	if (p.prodCtx && 'string' === typeof p.prodCtx.catOut) {
		const productName = p.prodCtx.catOut.trim();
		if (productName != "") {
			res.productName = productName;
		}
	}

	if ('cls' in p) {
		// todo: use profile.products.find() for this
		const byBitmask = []
		for (let product of profile.products) {
			for (let bitmask of product.bitmasks) {
				byBitmask[bitmask] = product
			}
		}

		// todo: what if `p.cls` is the sum of two bitmasks?
		const product = byBitmask[parseInt(p.cls)]
		res.mode = product && product.mode || null
		res.product = product && product.id || null
	}

	if (p.operator) res.operator = p.operator // todo: move up
	return res
}

export {
	parseLine,
}