import java.io.*;
import java.rmi.Naming;

/**
 * Created by Nivesh Varma on 19 Mar 17.
 */
public class CommandLineTeller {
    public static void main(String[] args) throws Exception {
        TellerServer server = null;
        if (args.length == 0)
        {
            server = (TellerServer) Naming.lookup("TellerServices");
            System.out.println("The client has connected to the server at localhost.");
        }
        else
        {
            server = (TellerServer) Naming.lookup("rmi://" + args[0] + "/TellerServices");
            System.out.println("The client has connected to the server at " + args[0]);
        }
        if (server == null) System.out.println("The client can't find the server!");

        InputStreamReader isr = new InputStreamReader(System.in); //point to keyboard for input
        BufferedReader kb = new BufferedReader(isr); //point to isr for input

        try {
            while (true) {
                System.out.println("Please enter a command:");
                String input = kb.readLine(); // read keyboard input

                String tempUserInput = input;
                String tempUserInput2 = input;
                String tempUserInput3 = input;

                int parameters = tempUserInput.length() - tempUserInput.replace(",", "").length() + 1;
                int parentheses = (tempUserInput2.length()
                        - tempUserInput2.replace("(", "").length())
                        + (tempUserInput3.length() - tempUserInput3.replace(")", "").length());

                if (input.contains(" ")) {
                    System.out.println("ERROR: Whitespace character detected");
                }

                // openNewAccount(String accountType, String customerName)
                else if (input.startsWith("openNewAccount(")
                        && (input.endsWith(")") || input.endsWith(");")))
                {
                    if (parameters!=2 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters or bad format");
                    } else {
                        int commaOffset = input.indexOf(",");
                        String parameter1 = input.substring(15, commaOffset);
                        if(!parameter1.equalsIgnoreCase("checking")
                                && !parameter1.equalsIgnoreCase("savings")) {
                            System.out.println("ERROR: Invalid account type");
                        } else {
                            int rightParenOffset = input.indexOf(")");
                            String parameter2 = input.substring(commaOffset + 1, rightParenOffset);
                            String serverReply = server.openNewAccount(parameter1, parameter2);
                            System.out.println(serverReply);
                        }
                    }
                }

                // closeOutAccount(int accountNumber, String customerName)
                else if (input.startsWith("closeOutAccount(")
                        && (input.endsWith(")") || input.endsWith(");")))
                {
                    if (parameters!=2 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters or bad format");
                    } else {
                        int commaOffset = input.indexOf(",");
                        String parameter1 = input.substring(16,commaOffset);
                        int p1_int = Integer.parseInt(parameter1);
                        if (p1_int <= 0) {
                            System.out.println("ERROR: Invalid account number");
                        } else {
                            int rightParenOffset = input.indexOf(")");
                            String parameter2 = input.substring(commaOffset+1, rightParenOffset);
                            String serverReply = server.closeOutAccount(p1_int,parameter2);
                            System.out.println(serverReply);
                        }
                    }
                }

                // processAccount(String processType, int accountNumber, double amount)
                else if (input.startsWith("processAccount")
                        && (input.endsWith(")") || input.endsWith(");")))
                {
                    if (parameters!=3 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters or bad format");
                    } else {
                        int commaOffset1 = input.indexOf(",");
                        String parameter1 = input.substring(15, commaOffset1);
                        if(!parameter1.equalsIgnoreCase("deposit")
                                && !parameter1.equalsIgnoreCase("withdraw")) {
                            System.out.println("ERROR: Invalid account type");
                        } else {
                            int commaOffset2 = input.indexOf(",", commaOffset1 + 1);
                            String parameter2 = input.substring(commaOffset1 + 1, commaOffset2);
                            int p2_int = Integer.parseInt(parameter2);
                            if (p2_int <= 0) {
                                System.out.println("ERROR: Invalid account number");
                            } else {
                                int rightParenOffset = input.indexOf(")");
                                String parameter3 = input.substring(commaOffset2 + 1, rightParenOffset);
                                double p3_double = Double.parseDouble(parameter3);
                                if (p2_int <= 0) {
                                    System.out.println("ERROR: Invalid amount");
                                } else {
                                    String serverReply = server.processAccount(parameter1, p2_int, p3_double);
                                    System.out.println(serverReply);
                                }
                            }
                        }
                    }
                }

                // showAccount (int accountNumber)
                else if (input.startsWith("showAccount(")
                        && (input.endsWith(")") || input.endsWith(");")))
                {
                    int rightParenOffset = input.indexOf(")");
                    String parameter1 = input.substring(12,rightParenOffset);
                    int p1_int = Integer.parseInt(parameter1);
                    String serverReply = server.showAccount(p1_int);
                    System.out.println(serverReply);
                }

                // showAccounts (String customerName)
                else if (input.startsWith("showAccounts")
                        && (input.endsWith(")") || input.endsWith(");")))
                {
                    int rightParenOffset = input.indexOf(")");
                    String parameter1 = input.substring(13,rightParenOffset);
                    String serverReply = server.showAccounts(parameter1);
                    System.out.println(serverReply);
                }

                else {
                    System.out.println("ERROR: Method not recognized!");
                }
            }
        } catch (IOException ioe) {
            System.out.println(ioe);
        }

        /*try {
            while (true) {
                System.out.println("Please enter a command:");
                String userInput = kb.readLine();
                if (userInput.contains(" ")) {
                    System.out.println("ERROR: Whitespace character detected");
                    return;
                }
                String tempUserInput = userInput;
                String tempUserInput2 = userInput;
                String tempUserInput3 = userInput;

                int parameters = tempUserInput.length() - tempUserInput.replace(",", "").length() + 1;
                int parentheses = (tempUserInput2.length()
                        - tempUserInput2.replace("(", "").length())
                        + (tempUserInput3.length() - tempUserInput3.replace(")", "").length());

                if (userInput.startsWith("openNewAccount(")
                        && (userInput.endsWith(")") || userInput.endsWith(");"))) {
//                    System.out.println("\"openNewAccount(***,***)\" entered");
//                    System.out.println(parentheses + " parentheses entered");
                    if (parameters!=2 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters");
                    } else System.out.println("COUNT CORRECT");
                }

                else if (userInput.startsWith("closeOutAccount(")
                        && (userInput.endsWith(")") || userInput.endsWith(");"))) {
//                    System.out.println("\"closeOutAccount\" entered");
                    if (parameters!=2 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters");
                    } else System.out.println("COUNT CORRECT");
                }

                else if (userInput.startsWith("processAccount(")
                        && (userInput.endsWith(")") || userInput.endsWith(");"))) {
//                    System.out.println("\"processAccount\" entered");
                    if (parameters!=3 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters");
                    } else System.out.println("COUNT CORRECT");
                }

                else if (userInput.startsWith("showAccount(")
                        && (userInput.endsWith(")") || userInput.endsWith(");"))) {
//                    System.out.println("\"showAccount\" entered");
                    if (parameters!=1 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters");
                    } else System.out.println("COUNT CORRECT");
                }

                else if (userInput.startsWith("showAccounts(")
                        && (userInput.endsWith(")") || userInput.endsWith(");"))) {
//                    System.out.println("\"showAccounts\" entered");
                    if (parameters!=1 || parentheses!=2) {
                        System.out.println("ERROR: Incorrect number of parameters");
                    } else System.out.println("COUNT CORRECT");
                }

                else {
                    System.out.println("ERROR: Method not recognized!");
                    return;
                }
            }
        } catch (IOException ioe) {}*/
    }
}