// Runs FILIUS's own readers of the e-mail account files on every case of a
// list: EmailServer.kontenLaden on /mailserver/konten.txt ("server") and
// EmailAnwendung.laden on /konten.txt ("client"). Writes the accounts Java
// ends up with — the reference for packages/fls/src/javaEmail.ts. One case
// per line: a whole file, ASCII with Java-style unicode escapes (backslash,
// u, four hex digits).
//
// Usage: java -cp filius.jar:lib/*:classes EmailFileCases server|client <cases txt> <output json>

import filius.hardware.knoten.Rechner;
import filius.software.email.EmailAnwendung;
import filius.software.email.EmailKonto;
import filius.software.email.EmailServer;
import filius.software.system.Datei;
import filius.software.system.Dateisystem;
import filius.software.system.InternetKnotenBetriebssystem;

import java.io.FileOutputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

public class EmailFileCases {

    public static void main(String[] args) throws Exception {
        boolean server = args[0].equals("server");
        List<Object> result = new ArrayList<>();
        for (String line : Files.readAllLines(Path.of(args[1]), StandardCharsets.US_ASCII)) {
            InternetKnotenBetriebssystem system = (InternetKnotenBetriebssystem) new Rechner().getSystemSoftware();
            Dateisystem fileSystem = system.getDateisystem();
            Datei file = new Datei();
            file.setName("konten.txt");
            file.setDateiInhalt(IpCheckCases.unescape(line));
            Object accounts;
            try {
                if (server) {
                    EmailServer mail = new EmailServer();
                    mail.setSystemSoftware(system);
                    fileSystem.speicherDatei(fileSystem.holeRootPfad() + Dateisystem.FILE_SEPARATOR + "mailserver", file);
                    mail.kontenLaden();
                    accounts = FlsOracle.emailAccounts(mail.getListeBenutzerkonten());
                } else {
                    EmailAnwendung mail = new EmailAnwendung();
                    mail.setSystemSoftware(system);
                    fileSystem.speicherDatei(fileSystem.getRoot(), file);
                    mail.laden();
                    Map<String, EmailKonto> konten = mail.holeKontoListe();
                    accounts = konten.isEmpty() ? null : FlsOracle.emailAccounts(new ArrayList<>(konten.values())).get(0);
                }
            } catch (RuntimeException error) {
                accounts = "!" + error.getClass().getSimpleName();
            }
            result.add(Arrays.asList(line, accounts));
        }
        try (FileOutputStream out = new FileOutputStream(args[2])) {
            out.write((FlsOracle.Json.write(result, "") + "\n").getBytes(StandardCharsets.UTF_8));
        }
        System.out.println("email " + args[0] + " cases: " + result.size());
        System.exit(0);
    }
}