/*
 * Copyright (c) 2000, 2020 Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2021 Contributors to the Eclipse Foundation
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

/*
 * @(#)ObjMgr.java	1.19 06/27/07
 */

package com.sun.messaging.jmq.admin.apps.objmgr;

import java.io.*;
import java.util.Enumeration;

import com.sun.messaging.jmq.Version;
import com.sun.messaging.jmq.util.options.OptionException;
import com.sun.messaging.jmq.util.options.UnrecognizedOptionException;
import com.sun.messaging.jmq.util.options.InvalidBasePropNameException;
import com.sun.messaging.jmq.util.options.InvalidHardCodedValueException;
import com.sun.messaging.jmq.util.options.MissingArgException;
import com.sun.messaging.jmq.util.options.BadNameValueArgException;

import com.sun.messaging.jmq.admin.util.Globals;
import com.sun.messaging.jmq.admin.resources.AdminResources;

/**
 * This is a utility that allows administrators to store administration objects in an object store. The utility has the
 * following features:
 *
 * <OL>
 * <LI>Add an administration object
 * <LI>Delete an administration object
 * <LI>Query and display an administration object
 * <LI>List all administration objects
 * </OL>
 * 
 * The user will execute this utility by running a imqobjmgr script.
 *
 */
public class ObjMgr implements ObjMgrOptions {

    public final static String FIRST_VERSION = "2.0";
    public final static String VERSION = "2.0";

    private final static String PROP_NAME_VERSION = "version";
    private static AdminResources ar = Globals.getAdminResources();

    public static void main(String[] args) {
        int exitcode = 0;

        if (silentModeOptionSpecified(args)) {
            Globals.setSilentMode(true);
        }

        /*
         * Check for -h or -H, or that the first argument is the command type (-a, -d, -l or -q) if we still want to have that
         * restriction.
         */
        if (shortHelpOptionSpecified(args)) {
            HelpPrinter hp = new HelpPrinter();
            hp.printShortHelp(0);
        } else if (longHelpOptionSpecified(args)) {
            HelpPrinter hp = new HelpPrinter();
            hp.printLongHelp();
        }
        /*
         * Check for -version.
         */
        if (versionOptionSpecified(args)) {
            printBanner();
            printVersion();
            System.exit(0);
        }

        ObjMgrProperties objMgrProps = null;

        /*
         * Convert String args[] into a ObjMgrProperties object. The ObjMgrProperties class is just a Properties subclass with
         * some convenience methods in it.
         */
        try {
            objMgrProps = ObjMgrOptionParser.parseArgs(args);
        } catch (OptionException e) {
            handleArgsParsingExceptions(e);
        }

        String propFileName = objMgrProps.getInputFileName();
        if ((propFileName != null) && !propFileName.equals("")) {
            /*
             * Read in property file.
             */
            ObjMgrProperties tmpProps = new ObjMgrProperties();
            try {
                FileInputStream fis = new FileInputStream(propFileName);

                tmpProps.load(fis);

            } catch (IOException ioe) {
                Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_PROB_LOADING_PROP_FILE), false);
                System.err.println(ioe);
                System.exit(1);
            }

            String v = getFileVersion(tmpProps);

            /*
             * If no version property found, assume the file is the current version and skip otherwise continue to check it.
             */
            if (v != null) {

                try {
                    checkVersion(propFileName, v, VERSION, FIRST_VERSION);
                } catch (ObjMgrException ome) {
                    Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ome.getMessage(), false);
                    // System.err.println(ome);
                    System.exit(1);
                }
            }

            /*
             * Override the values with properties that exist on the command line.
             */
            for (Enumeration e = objMgrProps.propertyNames(); e.hasMoreElements();) {
                String propName = (String) e.nextElement(), propVal;
                /*
                 * Globals.stdErrPrintln("Override propname: " + propName);
                 */

                if (propName == null) {
                    continue;
                }

                propVal = objMgrProps.getProperty(propName);
                if (propVal == null) {
                    continue;
                }

                if (!propName.equals(OBJMGR_INPUTFILE_PROP_NAME)) {
                    tmpProps.put(propName, propVal);
                }
            }

            objMgrProps = tmpProps;

        }

        /*
         * Remove trailing spaces in prop values.
         */
        objMgrProps = trimPropValues(objMgrProps);

        /*
         * For each command type used, check that the information passed in is sufficient. e.g. for add (-a), a lookupname and
         * type is required.
         */
        try {
            checkOptions(objMgrProps);
        } catch (ObjMgrException ome) {
            handleCheckOptionsExceptions(ome);
        }

        if (objMgrProps.previewModeSet()) {
            CmdPreviewer cmdPreviewer = new CmdPreviewer(objMgrProps);
            cmdPreviewer.previewCommands();
            System.exit(0);
        }

        /*
         * Execute the commands specified by the user
         */

        CmdRunner cmdRunner = new CmdRunner(objMgrProps);
        exitcode = cmdRunner.runCommands();

        System.exit(exitcode);
    }

    /**
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute user commands. This method may
     * print out errors/warnings and exit with an error code.
     */
    private static void checkOptions(ObjMgrProperties objMgrProps) throws ObjMgrException {

        /*
         * Globals.stdErrPrintln("ObjMgrProperties dump:"); objMgrProps.list(System.err);
         * Globals.stdErrPrintln("-------------\n");
         * 
         * String objType = objMgrProps.getObjType(); Properties props = objMgrProps.getObjProperties(); ObjStoreAttrs osa =
         * objMgrProps.getObjStoreAttrs();
         * 
         * Globals.stdErrPrintln("Obj Type: " + objType); Globals.stdErrPrintln("");
         * Globals.stdErrPrintln("objMgrProps.forceModeSet(): " + objMgrProps.forceModeSet());
         * Globals.stdErrPrintln("objMgrProps.previewModeSet(): " + objMgrProps.previewModeSet());
         * Globals.stdErrPrintln("objMgrProps.getInputFileName(): " + objMgrProps.getInputFileName());
         * 
         * Globals.stdErrPrintln("ObjProps:"); props.list(System.err); Globals.stdErrPrintln("");
         * 
         * Globals.stdErrPrintln("ObjStoreAttrs:\n " + osa); Globals.stdErrPrintln("");
         */

        String cmd = objMgrProps.getCommand();

        if (cmd == null) {
            ObjMgrException objMgrEx;
            objMgrEx = new ObjMgrException(ObjMgrException.NO_CMD_SPEC);
            objMgrEx.setProperties(objMgrProps);

            throw (objMgrEx);
        }

        /**
         * Validate the value to the read only option, if specified
         */
        if (readOnlyOptionSpecified(objMgrProps)) {
            checkReadOnly(objMgrProps);
        }

        /*
         * Determine type of command and invoke the relevant check method to verify the contents of the ObjMgrProperties object.
         *
         */
        if (cmd.equals(OBJMGR_ADD_PROP_VALUE)) {
            checkAdd(objMgrProps);
        } else if (cmd.equals(OBJMGR_DELETE_PROP_VALUE)) {
            checkDelete(objMgrProps);
        } else if (cmd.equals(OBJMGR_QUERY_PROP_VALUE)) {
            checkQuery(objMgrProps);
        } else if (cmd.equals(OBJMGR_LIST_PROP_VALUE)) {
            checkList(objMgrProps);
        } else if (cmd.equals(OBJMGR_UPDATE_PROP_VALUE)) {
            checkUpdate(objMgrProps);
        } else {
            ObjMgrException objMgrEx;
            objMgrEx = new ObjMgrException(ObjMgrException.BAD_CMD_SPEC);
            objMgrEx.setProperties(objMgrProps);

            throw (objMgrEx);
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute the ADD command. This method
     * may print out errors/warnings and exit with an error code.
     */
    private static void checkAdd(ObjMgrProperties objMgrProps) throws ObjMgrException {

        String objType = objMgrProps.getObjType();

        if (objType == null) {
            ObjMgrException objMgrEx;

            objMgrEx = new ObjMgrException(ObjMgrException.NO_OBJ_TYPE_SPEC);
            objMgrEx.setProperties(objMgrProps);

            throw (objMgrEx);
        }

        if (Utils.isDestObjType(objType))
            checkAddDestination(objMgrProps);
        else if (Utils.isFactoryObjType(objType))
            checkAddFactory(objMgrProps);
        else {
            ObjMgrException objMgrEx;

            objMgrEx = new ObjMgrException(ObjMgrException.INVALID_OBJ_TYPE);
            objMgrEx.setProperties(objMgrProps);

            throw (objMgrEx);
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute the ADD command on a
     * destination object (Topic or Queue). This method may print out errors/warnings and exit with an error code.
     */
    private static void checkAddDestination(ObjMgrProperties objMgrProps) throws ObjMgrException {
        ObjMgrException e;
        String lookupName = objMgrProps.getLookupName();
        // String objDestName = objMgrProps.getObjDestName();

        if (lookupName == null) {
            e = new ObjMgrException(ObjMgrException.NO_LOOKUP_NAME_SPEC);
            e.setProperties(objMgrProps);
            throw (e);
            /*
             * XXX Not mandatory any more. } else if (objDestName == null) { e = new
             * ObjMgrException(ObjMgrException.NO_DEST_NAME_SPEC); e.setProperties(objMgrProps); throw (e);
             */
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute the ADD command on a factory
     * object (TopicConnectionFactory or QueueConnectionFactory). This method may print out errors/warnings and exit with an
     * error code.
     */
    private static void checkAddFactory(ObjMgrProperties objMgrProps) throws ObjMgrException {

        ObjMgrException e;
        String lookupName = objMgrProps.getLookupName();

        if (lookupName == null) {
            e = new ObjMgrException(ObjMgrException.NO_LOOKUP_NAME_SPEC);
            e.setProperties(objMgrProps);
            throw (e);
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute the DELETE command. This
     * method may print out errors/warnings and exit with an error code.
     */
    private static void checkDelete(ObjMgrProperties objMgrProps) throws ObjMgrException {

        ObjMgrException e;
        String lookupName = objMgrProps.getLookupName();

        if (lookupName == null) {
            e = new ObjMgrException(ObjMgrException.NO_LOOKUP_NAME_SPEC);
            e.setProperties(objMgrProps);
            throw (e);
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute the QUERY command. This method
     * may print out errors/warnings and exit with an error code.
     */
    private static void checkQuery(ObjMgrProperties objMgrProps) throws ObjMgrException {

        ObjMgrException e;
        String lookupName = objMgrProps.getLookupName();

        if (lookupName == null) {
            e = new ObjMgrException(ObjMgrException.NO_LOOKUP_NAME_SPEC);
            e.setProperties(objMgrProps);
            throw (e);
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute the LIST command. This method
     * may print out errors/warnings and exit with an error code.
     */
    private static void checkList(ObjMgrProperties objMgrProps) throws ObjMgrException {

        ObjMgrException e;
        String type = objMgrProps.getObjType();

        if (type != null) {
            if (!Utils.isValidObjType(type)) {
                e = new ObjMgrException(ObjMgrException.INVALID_OBJ_TYPE);
                e.setProperties(objMgrProps);
                throw e;
            }
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains all the correct info to execute the UPDATE command. This
     * method may print out errors/warnings and exit with an error code.
     */
    private static void checkUpdate(ObjMgrProperties objMgrProps) throws ObjMgrException {

        ObjMgrException e;
        String type = objMgrProps.getObjType();

        if (type != null) {
            if (!Utils.isValidObjType(type)) {
                e = new ObjMgrException(ObjMgrException.INVALID_OBJ_TYPE);
                e.setProperties(objMgrProps);
                throw e;
            }
        }
    }

    /*
     * Check ObjMgrProperties object to make sure it contains a true or false for the readonly command.
     */
    private static void checkReadOnly(ObjMgrProperties objMgrProps) throws ObjMgrException {

        ObjMgrException e;
        String s = objMgrProps.getProperty(OBJMGR_READONLY_PROP_NAME);
        if (s.equalsIgnoreCase("t") || s.equalsIgnoreCase(Boolean.TRUE.toString())) {
            s = Boolean.TRUE.toString();
            objMgrProps.put(OBJMGR_READONLY_PROP_NAME, Boolean.TRUE.toString());
        } else if (s.equalsIgnoreCase("f") || s.equalsIgnoreCase(Boolean.FALSE.toString())) {
            s = Boolean.FALSE.toString();
            objMgrProps.put(OBJMGR_READONLY_PROP_NAME, Boolean.FALSE.toString());
        }

        if (!s.equalsIgnoreCase(Boolean.TRUE.toString()) && !s.equalsIgnoreCase(Boolean.FALSE.toString())) {
            e = new ObjMgrException(ObjMgrException.INVALID_READONLY_VALUE);
            e.setProperties(objMgrProps);
            throw (e);
        }
    }

    /*
     * private static void previewCommands(ObjMgrProperties objMgrProps) { Globals.stdOutPrintln("Preview mode", true); }
     */

    /**
     * Print banner. XXX REVISIT 07/26/00 nakata: Add build number to M_BANNER
     */
    private static void printBanner() {

        Version version = new Version(false);
        Globals.stdOutPrintln(version.getBanner(false));
    }

    /*
     * REVISIT: Is it possible for any option value to be '-h' ?
     */
    private static boolean shortHelpOptionSpecified(String args[]) {
        for (int i = 0; i < args.length; ++i) {
            if (args[i].equals(OBJMGR_SHORT_HELP1) || args[i].equals(OBJMGR_SHORT_HELP2)) {
                return (true);
            }
        }

        return (false);
    }

    private static boolean longHelpOptionSpecified(String args[]) {
        for (int i = 0; i < args.length; ++i) {
            if (args[i].equals(OBJMGR_LONG_HELP1) || args[i].equals(OBJMGR_LONG_HELP2)) {
                return (true);
            }
        }

        return (false);
    }

    private static boolean readOnlyOptionSpecified(ObjMgrProperties objMgrProps) {
        String s = objMgrProps.getProperty(OBJMGR_READONLY_PROP_NAME);
        if (s != null)
            return (true);
        else
            return (false);
    }

    private static boolean versionOptionSpecified(String args[]) {
        for (int i = 0; i < args.length; ++i) {
            if (args[i].equals(OBJMGR_VERSION1) || args[i].equals(OBJMGR_VERSION2)) {
                return (true);
            }
        }

        return (false);
    }

    private static boolean silentModeOptionSpecified(String args[]) {
        for (int i = 0; i < args.length; ++i) {
            if (args[i].equals(OBJMGR_SILENTMODE)) {
                return (true);
            }
        }

        return (false);
    }

    private static void printVersion() {

        Version version = new Version(false);
        Globals.stdOutPrintln(version.getVersion());
        Globals.stdOutPrintln(ar.getString(ar.I_JAVA_VERSION) + System.getProperty("java.version") + " " + System.getProperty("java.vendor") + " "
                + System.getProperty("java.home"));
        Globals.stdOutPrintln(ar.getString(ar.I_JAVA_CLASSPATH) + System.getProperty("java.class.path"));
    }

    /*
     * Error handling methods
     */

    private static void handleArgsParsingExceptions(OptionException e) {
        String option = e.getOption();

        if (e instanceof UnrecognizedOptionException) {
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_UNRECOG_OPTION, option, "imqobjmgr"), true);

        } else if (e instanceof InvalidBasePropNameException) {
            Globals.stdErrPrintln(ar.getString(ar.I_INTERNAL_ERROR_MESG), ar.getKString(ar.E_INVALID_BASE_PROPNAME, option), true);

        } else if (e instanceof InvalidHardCodedValueException) {
            Globals.stdErrPrintln(ar.getString(ar.I_INTERNAL_ERROR_MESG), ar.getKString(ar.E_INVALID_HARDCODED_VAL, option), true);

        } else if (e instanceof MissingArgException) {
            /*
             * REVISIT: We can provide more specific messages here depending on what the option was e.g. for -t: Error: An object
             * type was expected for option -t
             */
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_MISSING_ARG, option, "imqobjmgr"), true);

        } else if (e instanceof BadNameValueArgException) {
            BadNameValueArgException bnvae = (BadNameValueArgException) e;
            String badArg = bnvae.getArg();

            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_BAD_NV_ARG, badArg, option), true);

        } else {
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_OPTION_PARSE_ERROR), true);
        }
    }

    private static void handleCheckOptionsExceptions(ObjMgrException e) {
        ObjMgrProperties objMgrProps = e.getProperties();
        int type = e.getType();

        /*
         * REVISIT: should check objMgrProps != null
         */

        switch (type) {
        case ObjMgrException.NO_CMD_SPEC:
            printBanner();
            HelpPrinter hp = new HelpPrinter();
            hp.printShortHelp(1);
            break;

        case ObjMgrException.BAD_CMD_SPEC:
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_BAD_COMMAND_SPEC, objMgrProps.getCommand()), true);
            break;

        case ObjMgrException.NO_OBJ_TYPE_SPEC:
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_NO_OBJ_TYPE_SPEC, ObjMgrOptions.OBJMGR_TYPE), true);
            break;

        case ObjMgrException.INVALID_OBJ_TYPE:
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_INVALID_OBJ_TYPE, objMgrProps.getObjType()), true);
            break;

        case ObjMgrException.INVALID_READONLY_VALUE:
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_INVALID_READONLY_VALUE, objMgrProps.getProperty(OBJMGR_READONLY_PROP_NAME)),
                    true);
            break;

        case ObjMgrException.NO_LOOKUP_NAME_SPEC:
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_NO_LOOKUP_NAME, ObjMgrOptions.OBJMGR_NAME), true);
            break;

        case ObjMgrException.NO_DEST_NAME_SPEC:
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_NO_DEST_NAME, ObjMgrOptions.OBJMGR_OBJ_ATTRS), true);
            break;

        default:
            Globals.stdErrPrintln(ar.getString(ar.I_ERROR_MESG), ar.getKString(ar.E_OPTION_VALID_ERROR), true);
            break;
        }
    }

    private static ObjMgrProperties trimPropValues(ObjMgrProperties props) {

        for (Enumeration e = props.propertyNames(); e.hasMoreElements();) {

            String propName = (String) e.nextElement();
            String propValue = props.getProperty(propName);
            if (propValue != null) {
                propValue = propValue.trim();
                props.put(propName, propValue);
            }

        }

        return props;
    }

    private static String getFileVersion(ObjMgrProperties props) {

        String val = props.getProperty(PROP_NAME_VERSION);

        return (val);
    }

    private static void checkVersion(String propFileName, String fileVersionStr, String expectedVersionStr, String firstVersionStr) throws ObjMgrException {
        double expectedVersion, fileVersion, firstVersion;

        /*
         * Convert current version string to double.
         */
        try {
            expectedVersion = Double.parseDouble(expectedVersionStr);
        } catch (NumberFormatException nfe) {
            ObjMgrException ome;

            expectedVersion = 0;
            ome = new ObjMgrException(ar.getKString(ar.E_BAD_INPUTFILE_VERSION, expectedVersionStr));
            throw (ome);
        }

        /*
         * Convert first version string to double.
         */
        try {
            firstVersion = Double.parseDouble(firstVersionStr);
        } catch (NumberFormatException nfe) {
            ObjMgrException ome;

            firstVersion = 0;
            ome = new ObjMgrException(ar.getKString(ar.E_BAD_INPUTFILE_VERSION, firstVersionStr));
            throw (ome);
        }

        /*
         * Convert file version string to double.
         */
        try {
            fileVersion = Double.parseDouble(fileVersionStr);
        } catch (NumberFormatException nfe) {
            ObjMgrException ome;
            Object args[] = new Object[4];

            fileVersion = 0;

            args[0] = propFileName;
            args[1] = PROP_NAME_VERSION;
            args[2] = fileVersionStr;
            args[3] = expectedVersionStr;

            String s = ar.getKString(ar.E_UNPARSABLE_INPUTFILE_VERSION, args);

            ome = new ObjMgrException(s);
            throw (ome);
        }

        /*
         * File version is less than our first version - error !
         */
        if (fileVersion < firstVersion) {
            ObjMgrException ome;
            Object args[] = new Object[4];

            args[0] = propFileName;
            args[1] = PROP_NAME_VERSION;
            args[2] = fileVersionStr;
            args[3] = expectedVersionStr;

            String s = ar.getKString(ar.E_NOT_SUP_INPUTFILE_VERSION, args);

            ome = new ObjMgrException(s);
            throw (ome);
        }

        /*
         * File version is greater than our current version - error !
         */
        if (fileVersion > expectedVersion) {
            ObjMgrException ome;
            Object args[] = new Object[4];

            args[0] = propFileName;
            args[1] = PROP_NAME_VERSION;
            args[2] = fileVersionStr;
            args[3] = expectedVersionStr;

            String s = ar.getKString(ar.E_NOT_SUP_INPUTFILE_VERSION, args);

            ome = new ObjMgrException(s);
            throw (ome);
        }

        /*
         * Add checks for firstVersion < fileVersion < expectedVersion here. Currently we don't have any - since this is our
         * first official version.
         */
    }
}
