package com.company;

import java.io.Serializable;
import java.util.List;

import static com.company.TuringConstants.*;

public class Command implements Serializable {

    private String command;
    private String username;
    private String password;
    private String docName;
    private int section;
    private int numSections;
    private String collaborator;
    private FileAttachment fileAttachment;

    public Command(String command, String username) {
        this.command = command;
        this.username = username;
    }

    public String getUsername() {
        return username;
    }

    public String getPassword() {
        return password;
    }

    public String getCommand() {
        return command;
    }

    public String getDocName() {
        return docName;
    }

    public int getSection() {
        return section;
    }

    public String getCollaborator() {
        return collaborator;
    }

    public static Command buildLoginCommand(String username, String password) {
        Command command = new Command(COMMAND_LOGIN, username);
        command.password = password;
        return command;
    }

    public static Command buildLogoutCommand(String username) {
        return new Command(COMMAND_LOGOUT, username);
    }

    public static Command buildListCommand(String username) {
        return new Command(COMMAND_LIST, username);
    }

    public static Command buildCreateCommand(String username, String docName, int numSections) {
        Command command = new Command(COMMAND_CREATE, username);
        command.docName = docName;
        command.numSections = numSections;
        return command;
    }

    public static Command buildShareCommand(String username, String docName, String collaborator) {
        Command command = new Command(COMMAND_SHARE, username);
        command.docName = docName;
        command.collaborator = collaborator;
        return command;
    }

    public static Command buildShowSectionCommand(String username, String docName, int section) {
        Command command = new Command(COMMAND_SHOW_SECTION, username);
        command.docName = docName;
        command.section = section;
        return command;
    }

    public static Command buildEditSectionCommand(String username, String docName, int section) {
        Command command = new Command(COMMAND_EDIT_SECTION, username);
        command.docName = docName;
        command.section = section;
        return command;
    }

    public static Command buildEndEditSectionCommand(
            String username, String docName, int section, String srcFileAttachment, String dstFileAttachment) {
        Command command = new Command(COMMAND_END_EDIT_SECTION, username);
        command.docName = docName;
        command.section = section;
        command.fileAttachment = new FileAttachment(srcFileAttachment, dstFileAttachment);
        return command;
    }

    public static Command buildShowDocumentCommand(String username, String docName) {
        Command command = new Command(COMMAND_SHOW_DOCUMENT, username);
        command.docName = docName;
        return command;
    }

    public int getNumSections() {
        return numSections;
    }

    public FileAttachment getFileAttachment() {
        return fileAttachment;
    }

    public boolean hasFileAttachment() {
        return fileAttachment != null;
    }

    public boolean hasEmptyAttachment() {
            return fileAttachment.getSize() > 0;
    }
}