module api_mapping;

import handy_httpd;
import handy_httpd.handlers.path_handler;
import handy_httpd.handlers.filtered_handler;

/**
 * Defines the Finnow API mapping with a main PathHandler.
 * Returns: The handler to plug into an HttpServer.
 */
PathHandler mapApiHandlers() {
	/// The base path to all API endpoints.
	const API_PATH = "/api";
	PathHandler h = new PathHandler();

	// Generic, public endpoints:
	h.addMapping(Method.GET, API_PATH ~ "/status", &getStatus);
	h.addMapping(Method.OPTIONS, API_PATH ~ "/**", &getOptions);

	// Dev endpoint for sample data: REMOVE BEFORE DEPLOYING!!!
	h.addMapping(Method.POST, API_PATH ~ "/sample-data", &sampleDataEndpoint);

	// Auth endpoints:
	import auth.api;
	h.addMapping(Method.POST, API_PATH ~ "/login", &postLogin);
	h.addMapping(Method.POST, API_PATH ~ "/register", &postRegister);
	h.addMapping(Method.GET, API_PATH ~ "/register/username-availability", &getUsernameAvailability);

	// Authenticated endpoints:
	PathHandler a = new PathHandler();
	a.addMapping(Method.GET, API_PATH ~ "/me", &getMyUser);
	a.addMapping(Method.DELETE, API_PATH ~ "/me", &deleteMyUser);

	import profile.api;
	a.addMapping(Method.GET, API_PATH ~ "/profiles", &handleGetProfiles);
	a.addMapping(Method.POST, API_PATH ~ "/profiles", &handleCreateNewProfile);
	/// URL path to a specific profile, with the :profile path parameter.
	const PROFILE_PATH = API_PATH ~ "/profiles/:profile";
	a.addMapping(Method.DELETE, PROFILE_PATH, &handleDeleteProfile);
	a.addMapping(Method.GET, PROFILE_PATH ~ "/properties", &handleGetProperties);

	import account.api;
	a.addMapping(Method.GET, PROFILE_PATH ~ "/accounts", &handleGetAccounts);
	a.addMapping(Method.POST, PROFILE_PATH ~ "/accounts", &handleCreateAccount);
	a.addMapping(Method.GET, PROFILE_PATH ~ "/accounts/:accountId:ulong", &handleGetAccount);
	a.addMapping(Method.DELETE, PROFILE_PATH ~ "/accounts/:accountId:ulong", &handleDeleteAccount);

	// Protect all authenticated paths with a token filter.
	import auth.service : TokenAuthenticationFilter, SECRET;
	HttpRequestFilter tokenAuthenticationFilter = new TokenAuthenticationFilter(SECRET);
	h.addMapping(API_PATH ~ "/**", new FilteredRequestHandler(
			a,
			[tokenAuthenticationFilter]
	));

	return h;
}

private void getStatus(ref HttpRequestContext ctx) {
	ctx.response.writeBodyString("online");
}

private void getOptions(ref HttpRequestContext ctx) {
}

private void sampleDataEndpoint(ref HttpRequestContext ctx) {
	import util.sample_data;
	import core.thread;
	Thread t = new Thread(() => generateSampleData());
	t.start();
}