/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
(function(){
	"use strict";

	const extension = require("../lib/extension");
	const settings = require("../lib/settings");
	const {parseErrorStack} = require("../lib/callingStack");
	const logging = require("../lib/logging");
	logging.setPrefix("page action script");

	const domainNotification = require("./domainNotification");
	const Notification = require("./Notification");
	const {createActionButtons, modalPrompt, modalChoice} = require("./gui");
	const lists = require("../lib/lists");
	require("../lib/theme").init("pageAction");
	
	function registerActionButtons(){
		logging.notice("create global action buttons");

		createActionButtons(
			document.getElementById("globalActions"),
			[
				{
					name: "showOptions",
					isIcon: true,
					callback: function(){
						if (browser.runtime && browser.runtime.openOptionsPage){
							browser.runtime.openOptionsPage();
						}
						else {
							window.open(browser.extension.getURL("options/options.html"), "_blank");
						}
					}
				},
				{
					name: "disableNotifications",
					isIcon: true,
					callback: function(){
						settings.set("showNotifications", false).then(function(){
							return window.close();
						}).catch(function(error){
							logging.warning("Unable to disable notifications:", error);
						});
					}
				}
			],
			undefined,
			true
		);
	}
	
	const domainActions = [
		{
			name: "ignorelist",
			isIcon: true,
			callback: function({domain, urls}){
				return domainOrUrlPicker(
					domain,
					urls,
					extension.getTranslation("selectIgnore"),
					extension.getTranslation("inputIgnoreURL")
				).then(function(choice){
					if (choice){
						return settings.set("showNotifications", false, choice);
					}
					return false;
				}).then(function(){
					return window.close();
				});
			}
		},
		{
			name: "whitelist",
			isIcon: true,
			callback: function({domain, urls, api}){
				const whitelistingSettings = {
					all: {name: "blockMode", value: "allow"},
					canvas: {name: "protectedCanvasPart", value: "nothing"},
					audio: {name: "protectAudio", value: false},
					domRect: {name: "protectDOMRect", value: false},
					history: {name: "historyLengthThreshold", value: 10000},
					navigator: {name: "protectNavigator", value: false},
					windows: {name: "protectWindow", value: false}
					
				};
				return domainOrUrlPicker(
					domain,
					urls,
					extension.getTranslation("selectWhitelist"),
					extension.getTranslation("inputWhitelistURL")
				).then(function(choice){
					if (
						api &&
						whitelistingSettings[api]
					){
						// eslint-disable-next-line promise/no-nesting
						return modalChoice(
							extension.getTranslation("selectWhitelistScope"),
							[
								{
									text: extension.getTranslation("whitelistOnlyAPI")
										.replace(
											/\{api\}/g,
											extension.getTranslation("section_" + api + "-api")
										),
									value: api
								},
								{
									text: extension.getTranslation("whitelistAllAPIs"),
									value: "all"
								}
							]
						).then(function(selection){
							return {choice, setting: whitelistingSettings[selection]};
						});
					}
					else {
						return {choice, setting: whitelistingSettings.all};
					}
				}).then(function({choice, setting}){
					if (choice){
						return settings.set(setting.name, setting.value, choice);
					}
					return false;
				}).then(function(){
					return window.close();
				});
			}
		},
		{
			name: "whitelistTemporarily",
			isIcon: true,
			callback: function({domain, urls}){
				return domainOrUrlPicker(
					domain,
					urls,
					extension.getTranslation("selectSessionWhitelist"),
					extension.getTranslation("inputSessionWhitelistURL")
				).then(function(choice){
					if (choice){
						return lists.appendTo("sessionWhite", choice);
					}
					return false;
				}).then(function(){
					return window.close();
				});
			}
		},
		{
			name: "inspectWhitelist",
			isIcon: true,
			callback: function({domain, urls}){
				window.open(
					browser.extension.getURL(
						"options/whitelist.html?domain=" +
						encodeURIComponent(domain) +
						"&urls=" +
						encodeURIComponent(JSON.stringify(Array.from(urls.values())))
					),
					"_blank"
				);
			}
		}
	];
	function registerDomainActions(){
		logging.verbose("registering domain actions");
		domainActions.forEach(function(domainAction){
			domainNotification.addAction(domainAction);
		});
	}
	
	function registerNotificationActions(){
		logging.verbose("registering notification actions");
		[
			{
				name: "displayFullURL",
				isIcon: true,
				callback: function({url}){
					alert(url.href);
				}
			},
			{
				name: "displayCallingStack",
				isIcon: true,
				callback: function({errorStack}){
					alert(parseErrorStack(errorStack));
				}
			}
		].forEach(function(action){
			Notification.addAction(action);
		});
	}
	
	function domainOrUrlPicker(domain, urls, selectText, urlInputText){
		const choices = Array.from(urls).map(function(url){
			return {
				text: url,
				value: "^" + url.replace(/([\\+*?[^\]$(){}=!|.])/g, "\\$1") + "$"
			};
		});
		if (domain){
			choices.unshift(domain);
		}
		return modalChoice(
			selectText,
			choices
		).then(function(choice){
			if (choice.startsWith("^")){
				return modalPrompt(
					urlInputText,
					choice
				);
			}
			else {
				return choice;
			}
		});
	}
	
	Promise.all([
		browser.tabs.query({active: true, currentWindow: true}),
		settings.loaded
	]).then(function(values){
		const tabs = values[0];
		
		if (!tabs.length){
			throw new Error("noTabsFound");
		}
		else if (tabs.length > 1){
			logging.error(tabs);
			throw new Error("tooManyTabsFound");
		}
		
		registerActionButtons();
		
		registerDomainActions();
		
		registerNotificationActions();
		
		const tab = tabs[0];
		extension.message.on(function(data){
			if (data["canvasBlocker-notificationCounter"]){
				const url = new URL(data.url);
				Object.keys(data["canvasBlocker-notificationCounter"]).forEach(function(key){
					domainNotification(
						url,
						key,
						data["canvasBlocker-notificationCounter"][key].count,
						data["canvasBlocker-notificationCounter"][key].api
					);
				});
			}
			if (
				Array.isArray(data["canvasBlocker-notifications"]) &&
				data["canvasBlocker-notifications"].length
			){
				logging.message("got notifications");
				const notifications = data["canvasBlocker-notifications"];
				let i = 0;
				const length = notifications.length;
				const tick = window.setInterval(function(){
					if (i >= length){
						window.clearInterval(tick);
					}
					else {
						let delta = 0;
						for (; delta < 20 && i + delta < length; delta += 1){
							let notification = notifications[i + delta];
							logging.verbose(notification);
							if (settings.ignoredAPIs[notification.api]){
								continue;
							}
							logging.verbose(notification);
							notification.url = new URL(notification.url);
							domainNotification(
								notification.url,
								notification.messageId,
								0,
								notification.api
							).addNotification(new Notification(notification));
						}
						i += delta;
					}
				}, 1);
			}
		});
		logging.message("request notifications from tab", tab.id);
		browser.tabs.sendMessage(
			tab.id,
			{
				"canvasBlocker-sendNotifications": tab.id
			}
		);
		logging.notice("waiting for notifications");
		return;
	}).catch(function(error){
		error(error);
	});
}());