import type { MglMap } from '@/components';
import type { SourceLayerRegistry } from '@/lib/sourceLayer.registry';
import type { Map, MapOptions, SourceSpecification, StyleSpecification } from 'maplibre-gl';
import type { Emitter } from 'mitt';
import type { InjectionKey, Ref, ShallowRef } from 'vue';

export const mapSymbol              = Symbol('map') as InjectionKey<ShallowRef<Map | undefined>>,
			 isLoadedSymbol         = Symbol('isLoaded') as InjectionKey<Ref<boolean>>,
			 isInitializedSymbol    = Symbol('isInitialized') as InjectionKey<Ref<boolean>>,
			 componentIdSymbol      = Symbol('componentId') as InjectionKey<number>,
			 sourceIdSymbol         = Symbol('sourceId') as InjectionKey<string>,
			 sourceLayerRegistry    = Symbol('sourceLayerRegistry') as InjectionKey<SourceLayerRegistry>,
			 emitterSymbol          = Symbol('emitter') as InjectionKey<Emitter<MglEvents>>,
			 fitBoundsOptionsSymbol = Symbol('fitBoundsOptions') as InjectionKey<FitBoundsOptions>;

export type FitBoundsOptions = MapOptions['fitBoundsOptions'] & { useOnBoundsUpdate?: boolean };

export interface MglEvent<T = any> {
	type: string;
	component: InstanceType<typeof MglMap>;
	map: Map;
	event: T;
}

export type MglEvents = {
	styleSwitched: StyleSwitchItem;
}

export interface StyleSwitchItem {
	name: string;
	label: string;
	icon?: {
		path: string;
	};
	style: StyleSpecification | string;
}

export type AllProps<T extends object> = { [K in keyof T]: undefined };

// only proper way to ensure all possible option to track option changes by type system
export function AllOptions<T extends object>(obj: AllProps<Required<T>>) {
	return Object.keys(obj) as Array<keyof T>;
}

export function AllSourceOptions<T = SourceSpecification>(obj: AllProps<Required<Omit<T, 'type'>>>) {
	return Object.keys(obj) as Array<keyof T>;
}

export type ValidLanguages =
	'sq'
	| 'am'
	| 'ar'
	| 'hy'
	| 'az'
	| 'eu'
	| 'be'
	| 'bs'
	| 'br'
	| 'bg'
	| 'ca'
	| 'zh'
	| 'co'
	| 'hr'
	| 'cs'
	| 'da'
	| 'nl'
	| 'en'
	| 'eo'
	| 'et'
	| 'fi'
	| 'fr'
	| 'fy'
	| 'ka'
	| 'de'
	| 'el'
	| 'he'
	| 'hi'
	| 'hu'
	| 'is'
	| 'id'
	| 'ga'
	| 'it'
	| 'ja'
	| 'ja-Hira'
	| 'ja_kana'
	| 'ja_rm'
	| 'ja-Latn'
	| 'kn'
	| 'kk'
	| 'ko'
	| 'ko-Latn'
	| 'ku'
	| 'la'
	| 'lv'
	| 'lt'
	| 'lb'
	| 'mk'
	| 'ml'
	| 'mt'
	| 'no'
	| 'oc'
	| 'pl'
	| 'pt'
	| 'ro'
	| 'rm'
	| 'ru'
	| 'gd'
	| 'sr'
	| 'sr-Latn'
	| 'sk'
	| 'sl'
	| 'es'
	| 'sv'
	| 'ta'
	| 'te'
	| 'th'
	| 'tr'
	| 'uk'
	| 'cy'