import { Schedule, TimeSlot } from "~/shared/types/schedule";

const locations = [
	{
		name: "Stage",
		description: "Inside the main building."
	},
	{
		name: "Clubhouse",
		description: "That big red building in the middle of the park."
	},
	{
		name: "Summerhouse",
		description: "Next to the campfire by the lake"
	},
	{
		name: "Campfire",
		description: "Next to the big tree by the lake."
	},
	{
		name: "Outside",
		description: "Takes place somewhere outside."
	}
]

const events = [
	{
		name: "Arcade",
		description: "Play retro games!",
		slots: [
			"d1 12:00 4h clubhouse",
			"d2 12:00 4h clubhouse",
			"d3 12:00 4h clubhouse",
		]
	},
	{
		name: "Bonfire Stories",
		description: "Share your stories as we sit cosily around the campfire.",
		slots: ["d2 18:00 2h campfire"]
	},
	{ name: "DJ Alpha", slots: ["d2 20:00 2h stage"] },
	{ name: "DJ Bravo", slots: ["d3 20:00 2h stage"] },
	{ name: "DJ Charlie", slots: ["d3 22:00 2h stage"] },
	{
		name: "Fursuit Games",
		description: "Playful time for the suiters.",
		slots: ["d4 18:00 2h clubhouse"],
	},
	{ name: "Fishing Trip", slots: ["d3 12:00 3h30m outside"]},
	{ name: "Opening", slots: ["d1 18:30 1h30m stage"]},
	{ name: "Closing", slots: ["d5 16:00 1h stage"]},
	{
		name: "Board Games",
		slots: [
			"d1 12:00 4h summerhouse",
			"d2 12:00 4h summerhouse",
			"d3 12:00 4h summerhouse",
			"d4 12:00 4h summerhouse",
		]
	},
	{ name: "📷meet", slots: ["d3 19:00 1h10m summerhouse"]},
	{
		name: "Karaoke",
		slots: [
			"d3 21:00 2h clubhouse",
			"d4 21:00 2h clubhouse",
		],
	},
	{ name: "Dance", slots: ["d1 20:00 3h stage"]},
	{ name: "Charity Auction", slots: ["d4 13:00 2h stage"]},
	{ name: "Tournament", slots: ["d2 17:00 2h stage"]},
	{ name: "Canoe Trip", slots: ["d4 11:00 4h30m outside"]},
	{
		name: "Dinner",
		slots: [
			"d1 16:00 1h campfire",
			"d2 16:00 1h campfire",
			"d3 16:00 1h campfire",
			"d4 16:00 1h campfire",
		],
	},
	{ name: "Film Night", slots: ["d4 21:00 2h stage"]},
	{ name: "Photo", slots: ["d3 18:00 45m stage"]},
	{ name: "Artist Alley", slots: ["d4 12:00 4h clubhouse"]},
	{ name: "Feedback Panel", slots: ["d5 18:00 4h clubhouse"]},
];

function toId(name: string) {
	return name.toLowerCase().replace(/ /g, "-");
}

function toIso(date: Date) {
	return date.toISOString().replace(":00:000Z", "Z");
}

function toSlot(origin: Date, id: string, shorthand: string, index: number): TimeSlot {
	const [day, start, duration, location] = shorthand.split(" ");
	const [startHours, startMinutes] = start.split(":").map(time => parseInt(time, 10));
	const dayNumber = parseInt(day.slice(1));

	const startDate = new Date(origin);
	startDate.setUTCDate(startDate.getUTCDate() + dayNumber);
	startDate.setUTCHours(startDate.getUTCHours() + startHours);
	startDate.setUTCMinutes(startDate.getUTCMinutes() + startMinutes);

	const [_, durationHours, durationMinutes] = /(?:(\d+)h)?(?:(\d+)m)?/.exec(duration)!;
	const durationTotal = parseInt(durationHours ?? "0") * 60 + parseInt(durationMinutes ?? "0")
	const endDate = new Date(startDate.getTime() + durationTotal * 60e3);

	return {
		id: `${id}-${index}`,
		start: toIso(startDate),
		end: toIso(endDate),
		locations: [location],
	}
}

export function generateDemoSchedule(): Schedule {
	const origin = new Date();
	const utcOffset = 1;
	origin.setUTCDate(origin.getUTCDate() - origin.getUTCDay() - 1); // Go to Monday
	origin.setUTCHours(utcOffset);
	origin.setUTCMinutes(0);
	origin.setUTCSeconds(0);
	origin.setMilliseconds(0);

	return {
		events: events.map(
			({ name, description, slots }) => ({
				id: toId(name),
				name,
				description,
				slots: slots.map((shorthand, index) => toSlot(origin, toId(name), shorthand, index))
			})
		),
		locations: locations.map(
			({ name, description }) => ({ id: toId(name), name, description })
		),
	}
}