sendou.ink/app/features/calendar/calendar-utils.server.ts

import type { z } from "zod";
import type { TournamentSettings } from "~/db/tables";
import { BRACKET_NAMES } from "../tournament/tournament-constants";
import type { newCalendarEventActionSchema } from "./actions/calendar.new.server";
import { validateFollowUpBrackets } from "./calendar-utils";

export function formValuesToBracketProgression(
	args: z.infer<typeof newCalendarEventActionSchema>,
) {
	if (!args.format) return null;

	const result: TournamentSettings["bracketProgression"] = [];
	if (args.format === "DE") {
		result.push({
			name: BRACKET_NAMES.MAIN,
			type: "double_elimination",
		});

		if (args.withUndergroundBracket) {
			result.push({
				name: BRACKET_NAMES.UNDERGROUND,
				type: "single_elimination",
				sources: [{ bracketIdx: 0, placements: [-1, -2] }],
			});
		}
	}

	if (args.format === "SWISS") {
		result.push({
			name: BRACKET_NAMES.MAIN,
			type: "swiss",
		});
	}

	if (args.format === "SE") {
		result.push({
			name: BRACKET_NAMES.MAIN,
			type: "single_elimination",
		});
	}

	if (
		args.format === "RR_TO_SE" &&
		args.teamsPerGroup &&
		args.followUpBrackets
	) {
		if (
			validateFollowUpBrackets(
				args.followUpBrackets,
				args.format,
				args.teamsPerGroup,
			)
		) {
			return null;
		}

		result.push({
			name: BRACKET_NAMES.GROUPS,
			type: "round_robin",
		});

		for (const bracket of args.followUpBrackets) {
			result.push({
				name: bracket.name,
				type: "single_elimination",
				sources: [{ bracketIdx: 0, placements: bracket.placements }],
			});
		}
	}

	if (args.format === "SWISS_TO_SE" && args.followUpBrackets) {
		if (validateFollowUpBrackets(args.followUpBrackets, args.format)) {
			return null;
		}

		result.push({
			name: BRACKET_NAMES.GROUPS,
			type: "swiss",
		});

		for (const bracket of args.followUpBrackets) {
			result.push({
				name: bracket.name,
				type: "single_elimination",
				sources: [{ bracketIdx: 0, placements: bracket.placements }],
			});
		}
	}

	// should not happen
	if (result.length === 0) return null;

	return result;
}