import {app, BrowserWindow, remote} from "electron";
import * as path from "path";
import * as electron from "electron";
import * as os from "os";

export function handle_crash_callback(args: string[]) {
    const parameter = {};
    for(const argument of args) {
        const colon_index = argument.indexOf('=');
        if(colon_index == -1) {
            console.warn("Crash callback contains invalid argument! (%s)", argument);
            continue;
        }

        parameter[argument.substr(0, colon_index)] = argument.substr(colon_index + 1);
    }
    console.log("Received crash dump callback. Arguments: %o", parameter);

    let error = undefined;
    let crash_file = undefined;

    if(parameter["success"] == true) {
        /* okey we have an crash dump */
        crash_file = parameter["dump_path"];
        if(typeof(crash_file) === "string") {
            try {
                crash_file = Buffer.from(crash_file, 'base64').toString();
            } catch(error) {
                console.warn("Failed to decode dump path: %o", error);
                crash_file = undefined;
                error = "failed to decode dump path!";
            }
        }
    } else if(typeof(parameter["error"]) === "string") {
        try {
            error = Buffer.from(crash_file, 'base64').toString();
        } catch(error) {
            console.warn("Failed to decode error: %o", error);
            error = "failed to decode error";
        }
    } else {
        error = "missing parameters";
    }

    app.on('ready', () => {
        const crash_window = new BrowserWindow({
            show: false,
            width: 1000,
            height: 300 + (os.platform() === "win32" ? 50 : 0),

            webPreferences: {
                devTools: true,
                nodeIntegration: true,
                javascript: true
            }
        });
        crash_window.setMenu(null);
        crash_window.loadFile(path.join(path.dirname(module.filename), "ui", "index.html"));
        crash_window.on('ready-to-show', () => {
            if(error)
                crash_window.webContents.send('dump-error', error);
            else if(!crash_file)
                crash_window.webContents.send('dump-error', "Missing crash file");
            else
                crash_window.webContents.send('dump-url', crash_file);
            crash_window.show();
        });
        app.on('window-all-closed', () => {
            process.exit(0);
        });

        crash_window.focus();
    });
}

module.paths.push(...(() => {
    const app_path = (remote || electron).app.getAppPath();
    const result = [];
    result.push(app_path + "/native/build/" + os.platform() + "_" + os.arch() + "/");
    if(app_path.endsWith(".asar"))
        result.push(path.join(path.dirname(app_path), "natives"));
    return result;
})());

export const handler = require( "teaclient_crash_handler");

export function initialize_handler(component_name: string, requires_file: boolean) {
    const start_path = requires_file ? (" "  + path.join(__dirname, "..", "..")) : "";
    const success_arguments = process.argv[0] + start_path + " crash-handler success=1 dump_path=%crash_path%";
    const error_arguments = process.argv[0] + start_path + " crash-handler success=0 error=%error_message%";

    console.log("Setting up crash handler. Success callback: %s; Error callback: %s", success_arguments, error_arguments);
    handler.setup_crash_handler(
        component_name,
        path.join((remote || electron).app.getPath('userData'), "crash_dumps"),
        success_arguments,
        error_arguments
    );
}

export function finalize_handler() {
    handler.finalize();
}