package org.asamk.signal.commands;

import net.sourceforge.argparse4j.inf.Namespace;
import net.sourceforge.argparse4j.inf.Subparser;

import org.asamk.signal.commands.exceptions.CommandException;
import org.asamk.signal.manager.MultiAccountManager;
import org.asamk.signal.output.JsonWriter;
import org.asamk.signal.output.OutputWriter;
import org.asamk.signal.output.PlainTextWriter;

public class ListAccountsCommand implements JsonRpcMultiLocalCommand {

    @Override
    public String getName() {
        return "listAccounts";
    }

    @Override
    public void attachToSubparser(final Subparser subparser) {
        subparser.help("Show a list of registered accounts.");
    }

    @Override
    public void handleCommand(
            final Namespace ns,
            final MultiAccountManager c,
            final OutputWriter outputWriter
    ) throws CommandException {
        final var accountNumbers = c.getAccountNumbers();
        switch (outputWriter) {
            case JsonWriter jsonWriter -> {
                final var jsonAccounts = accountNumbers.stream().map(JsonAccount::new).toList();
                jsonWriter.write(jsonAccounts);
            }
            case PlainTextWriter plainTextWriter -> {
                for (final var number : accountNumbers) {
                    plainTextWriter.println("Number: {}", number);
                }
            }
        }
    }

    private record JsonAccount(String number) {}
}