// Quit when all windows are closed.
import * as electron from "electron";
import * as app_updater from "./app-updater";

import { app } from "electron";
import MessageBoxOptions = electron.MessageBoxOptions;

import {process_args, parse_arguments, Arguments} from "../shared/process-arguments";
import {open as open_changelog} from "./app-updater/changelog";
import * as crash_handler from "../crash_handler";
import {open_preview} from "./url-preview";

async function execute_app() {
    /* legacy, will be removed soon */
    if(process_args.has_value("update-failed")) {
        const result = await electron.dialog.showMessageBox({
            type: "error",
            message: "Failed to execute update:\n" + process_args.value("update-failed"),
            title: "Update failed!",
            buttons: ["retry", "ignore"]
        } as MessageBoxOptions);
        if(result.response == 0)
            if(await app_updater.execute_graphical(await app_updater.selected_channel(), false))
                return;
    } else if(process_args.has_value("update-succeed")) {
        const result = await electron.dialog.showMessageBox({
            type: "info",
            message: "Update successfully installed!\nShould we launch TeaClient?",
            title: "Update succeeded!",
            buttons: ["yes", "no"]
        } as MessageBoxOptions);
        if(result.response != 0) {
            electron.app.exit(0);
            return; //Not really required here!
        }
    }



    if(process_args.has_value("update-execute")) {
        console.log("Executing update " + process_args.value("update-execute"));
        await app_updater.execute_update(process_args.value("update-execute"), callback => {
            console.log("Update preconfig successful. Extracting update. (The client should start automatically)");
            app.quit();
            setImmediate(callback);
        });
        return;
    } else if(process_args.has_value("update-failed-new") || process_args.has_value("update-succeed-new")) {
        const success = process_args.has_value("update-succeed-new");
        let data: {
            parse_success: boolean;
            log_file?: string;
            error_id?: string;
            error_message?: string;
        } = {
            parse_success: false
        };
        try {
            let encoded_data = Buffer.from(process_args.value("update-failed-new") || process_args.value("update-succeed-new"), "base64").toString();
            for(const part of encoded_data.split(";")) {
                const index = part.indexOf(':');
                if(index == -1)
                    data[part] = true;
                else {
                    data[part.substr(0, index)] = Buffer.from(part.substr(index + 1), "base64").toString();
                }
            }
            data.parse_success = true;
        } catch($) {
            console.error($);
        }
        console.log("Update success: %o. Update data: %o", success, data);

        let title = "";
        let type = "";
        let message = "";

        const buttons: ({
            key: string,
            callback: () => Promise<boolean>
        })[] = [];

        if(success) {
            open_changelog();

            type = "info";
            title = "Update succeeded!";

            message = "Update has been successfully installed!\nWhat do you want to do next?";

            buttons.push({
                key: "Launch client",
                callback: async () => false
            });
            if(data.parse_success && data.log_file) {
                buttons.push({
                    key: "Open update log",
                    callback: async () => {
                        electron.shell.openItem(data.log_file);
                        return true;
                    }
                });
            }
        } else {
            type = "error";
            title = "Update failed!";

            message = "Failed to install update.";
            if(data.parse_success) {
                message += "\n\n";
                message += "Error ID:      " + (data.error_id || "undefined") + "\n";
                message += "Error Message: " + (data.error_message || "undefined") + "\n";
                message += "Installer log: " + (data.log_file || "undefined");
            } else {
                message += "\nUnknown error! Lookup the console for more details.";
            }

            buttons.push({
                key: "Ignore",
                callback: async () => false
            });
            buttons.push({
                key: "Retry update",
                callback: async () => {
                    await app_updater.execute_graphical(await app_updater.selected_channel(), false);
                    return true;
                }
            });
            if(data.parse_success && data.log_file) {
                buttons.push({
                    key: "Open update log",
                    callback: async () => {
                        electron.shell.openItem(data.log_file);
                        return true;
                    }
                });
            }
        }
        buttons.push({
            key: "Close",
            callback: async () => true
        });

        const result = await  electron.dialog.showMessageBox({
            type: type,
            message: message,
            title: title,
            buttons: buttons.map(e => e.key)
        } as MessageBoxOptions);
        if(buttons[result.response].callback) {
            if(await buttons[result.response].callback())
                return;
        }
    }

    try {
        {
            const version = await app_updater.current_version();
            global["app_version_client"] = version.toString();
        }
        const main = require("./main_window");
        main.execute();

        app_updater.start_auto_update_check();
    } catch (error) {
        console.dir(error);
        const result = electron.dialog.showMessageBox({
            type: "error",
            message: "Failed to execute app main!\n" + error,
            title: "Main execution failed!",
            buttons: ["close"]
        } as MessageBoxOptions);
        electron.app.exit(1);
    }
}

function main() {
    process.on('uncaughtException', err => {
        console.error(err, 'Uncaught Exception thrown');
        console.dir(err);
        process.exit(1);
    });

    /*
    if(false) {
        SegfaultHandler = require('segfault-handler');

        SegfaultHandler.registerHandler("crash.log"); // With no argument, SegfaultHandler will generate a generic log file name
    }

    const SegfaultHandler = require('segfault-handler');
    SegfaultHandler.registerHandler("crash.log"); // With no argument, SegfaultHandler will generate a generic log file name
    */
    if(app) { //We're executed!
        parse_arguments();
        if(process_args.has_value(Arguments.DISABLE_HARDWARE_ACCELERATION))
            app.disableHardwareAcceleration();
        if(process_args.has_value(Arguments.DUMMY_CRASH_MAIN))
            crash_handler.handler.crash();
        if(!process_args.has_value(Arguments.DEBUG) && !process_args.has_value(Arguments.NO_SINGLE_INSTANCE)) {
            if(!app.requestSingleInstanceLock()) {
                console.log("Another instance is already running. Closing this instance");
                app.exit(0);
            }
        }
        app.on('ready', execute_app);
    }
}
export const execute = main;