namespace lib_nextbike
{
	
	/**
	 */
	let _baseurl : (null | string) = null;
	
	
	/**
	 */
	let _apikey : (null | string) = null;
	
	
	/**
	 */
	let _testmode : boolean = false;
	
	
	/**
	 */
	export function setup
	(
		baseurl : string,
		apikey : string,
		options :
		{
			testmode ?: boolean;
		} = {}
	) : void
	{
		options = Object.assign
		(
			{
				"testmode": false,
			},
			options
		);
		_baseurl = baseurl;
		_apikey = apikey;
		_testmode = options.testmode;
	}
	
	
	/**
	 */
	async function api_call
	(
		action : string,
		loginkey : (null | string),
		input : Record<string, string>
	) : Promise<any>
	{
		if ((_baseurl === null) || (_apikey === null))
		{
			throw (new Error("API not set up yet; execute 'setup' function"));
		}
		else
		{
			if (_testmode)
			{
				return {
					"user": {
						"loginkey": "",
					},
				};
			}
			else
			{
				return (
					fetch
					(
						lib_string.coin
						(
							"{{baseurl}}?{{query}}",
							{
								"baseurl": _baseurl,
								"query": lib_call.convey
								(
									{
										"version": "v2",
										"format": "json",
										"apikey": _apikey,
										"action": action,
										"loginkey": loginkey,
									},
									[
										Object.entries,
										x => x.filter(([key, value]) => (value !== null)),
										x => x.map(([key, value]) => lib_string.coin("{{key}}={{value}}", {"key": key, "value": value})),
										x => x.join("&")
									]
								),
							}
						),
						{
							"method": "POST",
							"body": JSON.stringify(input),
						}
					)
					.then
					(
						response => response.json()
					)
				);
			}
		}
	}
	
	
	/**
	 */
	export async function login
	(
		mobile : string,
		pin : string
	) : Promise<any>
	{
		return api_call
		(
			"login",
			null,
			{"mobile": mobile, "pin": pin}
		);
	}
	
	
	/**
	 */
	export async function logout
	(
		loginkey : string
	) : Promise<any>
	{
		return api_call
		(
			"logout",
			loginkey,
			{}
		);
	}
	
	
	/**
	 */
	export async function open_lock
	(
		loginkey : string,
		bike : string
	) : Promise<any>
	{
		return api_call
		(
			"openLock",
			loginkey,
			{"bike": bike}
		);
	}
	
	
	/**
	 */
	export async function rental_begin
	(
		loginkey : string,
		bike : string
	) : Promise<any>
	{
		return api_call
		(
			"rent",
			loginkey,
			{"bike": bike}
		);
	}
	
	
	/**
	 */
	export async function rental_break
	(
		loginkey : string,
		bike : string
	) : Promise<any>
	{
		return api_call
		(
			"rentalBreak",
			loginkey,
			{"bike": bike}
		);
	}
	
	
	/**
	 */
	export async function rental_end
	(
		loginkey : string,
		bike : string
	) : Promise<any>
	{
		return api_call
		(
			"return",
			loginkey,
			{"bike": bike}
		);
	}
	
}