import type { Uma } from './data/uma';
import { AptitudeLevel, Mood, RunningStyle } from './race';
import * as alpha123Umalator from './alpha123Umalator';

/**
 * Race runner, i.e. a trained horse.
 */
export interface Runner {
	name: string;

	chara_card_id: number;
	style: RunningStyle;
	mood: Mood;

	speed: number;
	stamina: number;
	power: number;
	guts: number;
	wit: number;

	sprint: AptitudeLevel;
	mile: AptitudeLevel;
	medium: AptitudeLevel;
	long: AptitudeLevel;
	front: AptitudeLevel;
	pace: AptitudeLevel;
	late: AptitudeLevel;
	end: AptitudeLevel;
	turf: AptitudeLevel;
	dirt: AptitudeLevel;

	skills: number[];
	unique_level: number;
}

/**
 * Create a new runner with baseline stats.
 * @param name Name to apply to the runner
 * @param base_uma Character card (trainee or uma) to use for aptitudes; otherwise all aptitudes are A
 * @returns Baseline runner
 */
export function newRunner(name?: string, base_uma?: Uma): Runner {
	return {
		name: name ?? '',
		chara_card_id: base_uma?.chara_card_id ?? 0,
		// TODO(zeph): default running style
		style: RunningStyle.FrontRunner,
		mood: Mood.Normal,
		speed: 1200,
		stamina: 1200,
		power: 1200,
		guts: 1200,
		wit: 1200,
		sprint: base_uma?.sprint ?? AptitudeLevel.A,
		mile: base_uma?.mile ?? AptitudeLevel.A,
		medium: base_uma?.medium ?? AptitudeLevel.A,
		long: base_uma?.long ?? AptitudeLevel.A,
		front: base_uma?.front ?? AptitudeLevel.A,
		pace: base_uma?.pace ?? AptitudeLevel.A,
		late: base_uma?.late ?? AptitudeLevel.A,
		end: base_uma?.end ?? AptitudeLevel.A,
		turf: base_uma?.turf ?? AptitudeLevel.A,
		dirt: base_uma?.dirt ?? AptitudeLevel.A,
		skills: base_uma != null ? [base_uma.unique] : [],
		unique_level: 4,
	};
}

/**
 * Import a runner from an external source.
 * @param obj Decoded object to import
 * @param name Name or memo to apply to the runner
 * @returns Imported runner, or null if import was not possible
 */
export function importRunner(obj: unknown, name?: string): Runner | null {
	// TODO(zeph): check for keys that identify the uma source
	if (typeof obj === 'object') {
		try {
			const r = alpha123Umalator.load(obj as alpha123Umalator.ImportUma, name);
			// TODO(zeph): validate?
			return r;
		} catch (exc) {
			console.warn('failed to import', obj, 'as alpha123 umalator:', exc);
			return null;
		}
	}
	console.warn('no guess on how to import', obj);
	return null;
}