/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun
 * Microsystems, Inc. All Rights Reserved.
 */
package org.netbeans.lib.cvsclient.command.log;

import java.io.*;
import java.text.*;
import java.util.*;

import org.netbeans.lib.cvsclient.command.*;
import org.netbeans.lib.cvsclient.util.*;

/**
 * Describes log information for a file. This is the result of doing a
 * cvs log command. The fields in instances of this object are populated
 * by response handlers.
 * @author  Milos Kleint
 */
public class LogInformation extends FileInfoContainer {
    private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); //NOI18N
    private File file;
    private String repositoryFilename;
    private String headRevision;
    private String branch;
    private String accessList;
    private String keywordSubstitution;
    private String totalRevisions;
    private String selectedRevisions;
    private String description;
    private String locks;
    private final List revisions = new ArrayList();
    private final List symbolicNames = new ArrayList();
    private StringBuffer symNamesBuffer;

    public LogInformation() {
    }

    /** Getter for property file.
     * @return Value of property file.
     */
    public File getFile() {
        return file;
    }

    /** Setter for property file.
     * @param file New value of property file.
     */
    public void setFile(File file) {
        this.file = file;
    }

    /** Getter for property repositoryFilename.
     * @return Value of property repositoryFilename.
     */
    public String getRepositoryFilename() {
        return repositoryFilename;
    }

    /** Setter for property repositoryFilename.
     * @param repositoryFilename New value of property repositoryFilename.
     */
    public void setRepositoryFilename(String repositoryFilename) {
        this.repositoryFilename = repositoryFilename;
    }

    /** Getter for property headRevision.
     * @return Value of property headRevision.
     */
    public String getHeadRevision() {
        return headRevision;
    }

    /** Setter for property headRevision.
     * @param headRevision New value of property headRevision.
     */
    public void setHeadRevision(String headRevision) {
        this.headRevision = headRevision;
    }

    /** Getter for property branch.
     * @return Value of property branch.
     */
    public String getBranch() {
        return branch;
    }

    /** Setter for property branch.
     * @param branch New value of property branch.
     */
    public void setBranch(String branch) {
        this.branch = branch;
    }

    /** Getter for property accessList.
     * @return Value of property accessList.
     */
    public String getAccessList() {
        return accessList;
    }

    /** Setter for property accessList.
     * @param accessList New value of property accessList.
     */
    public void setAccessList(String accessList) {
        this.accessList = accessList;
    }

    /** Getter for property keywordSubstitution.
     * @return Value of property keywordSubstitution.
     */
    public String getKeywordSubstitution() {
        return keywordSubstitution;
    }

    /** Setter for property keywordSubstitution.
     * @param keywordSubstitution New value of property keywordSubstitution.
     */
    public void setKeywordSubstitution(String keywordSubstitution) {
        this.keywordSubstitution = keywordSubstitution;
    }

    /** Getter for property totalRevisions.
     * @return Value of property totalRevisions.
     */
    public String getTotalRevisions() {
        return totalRevisions;
    }

    /** Setter for property totalRevisions.
     * @param totalRevisions New value of property totalRevisions.
     */
    public void setTotalRevisions(String totalRevisions) {
        this.totalRevisions = totalRevisions;
    }

    /** Getter for property selectedRevisions.
     * @return Value of property selectedRevisions.
     */
    public String getSelectedRevisions() {
        return selectedRevisions;
    }

    /** Setter for property selectedRevisions.
     * @param selectedRevisions New value of property selectedRevisions.
     */
    public void setSelectedRevisions(String selectedRevisions) {
        this.selectedRevisions = selectedRevisions;
    }

    /** Getter for property description.
     * @return Value of property description.
     */
    public String getDescription() {
        return description;
    }

    /** Setter for property description.
     * @param description New value of property description.
     */
    public void setDescription(String description) {
        this.description = description;
    }

    /** Getter for property locks.
     * @return Value of property locks.
     */
    public String getLocks() {
        return locks;
    }

    /** Setter for property locks.
     * @param locks New value of property locks.
     */
    public void setLocks(String locks) {
        this.locks = locks;
    }

    /** adds a revision info  to the LogInformation instance
     */

    public void addRevision(LogInformation.Revision newRevision) {
        revisions.add(newRevision);
    }

    /** return the all revisions attached to this log
     * (if more sophisticated method are supplied, this might get obsolete)
     */
    public List getRevisionList() {
        return revisions;
    }

    /** Search the revisions by number of revision. If not found, return null.
     */
    public LogInformation.Revision getRevision(String number) {
        Iterator it = revisions.iterator();
        LogInformation.Revision item;
        while (it.hasNext()) {
            item = (LogInformation.Revision)it.next();
            if (item.getNumber().equals(number)) {
                return item;
            }
        }
        return null;
    }

    /**
     * Add a symbolic name to the list of names and attaches it to a revision number.
     */
    public void addSymbolicName(String symName, String revisionNumber) {
        SymName newName = new SymName();
        newName.setName(symName);
        newName.setRevision(revisionNumber);
        symbolicNames.add(newName);
    }

    public List getAllSymbolicNames() {
        return symbolicNames;
    }

    /** Search the symbolic names by number of revision. If not found, return null.
     */
    public List getSymNamesForRevision(String revNumber) {
        Iterator it = symbolicNames.iterator();
        LogInformation.SymName item;
        List list = new LinkedList();
        while (it.hasNext()) {
            item = (LogInformation.SymName)it.next();
            if (item.getRevision().equals(revNumber)) {
                list.add(item);
            }
        }
        return list;
    }

    /** Search the symbolic names by name of tag (symbolic name). If not found, return null.
     */
    public LogInformation.SymName getSymName(String symName) {
        Iterator it = symbolicNames.iterator();
        LogInformation.SymName item;
        while (it.hasNext()) {
            item = (LogInformation.SymName)it.next();
            if (item.getName().equals(symName)) {
                return item;
            }
        }
        return null;
    }

    public Revision createNewRevision(String number) {
        Revision rev = new Revision();
        rev.setNumber(number);
        return rev;
    }

    /**
     * Return a string representation of this object. Useful for debugging.
     */
    public String toString() {
        StringBuffer buf = new StringBuffer(30);
        buf.append("\nFile: " + ((file != null)?file.getAbsolutePath():"null")); //NOI18N
        buf.append("\nRepositoryFile: " + repositoryFilename); //NOI18N
        buf.append("\nHead revision: " + headRevision); //NOI18N
        return buf.toString();
    }

    public class SymName {
        private String name;
        private String revision;

        public SymName() {
        }

        public String getName() {
            return name;
        }

        public void setName(String symName) {
            name = symName;
        }

        public void setRevision(String rev) {
            revision = rev;
        }

        public String getRevision() {
            return revision;
        }
    }

    public class Revision {

        /**
         * The revision number.
         */
        private String number;
        /**
         * The parsed date.
         */
        private Date date;
        /**
         * The String representation of the date.
         */
        private String dateString;
        /**
         * The author of the revision.
         */
        private String author;
        /**
         * The state.
         */
        private String state;
        /**
         * The added/removed lines.
         */
        private String lines;
        /**
         * The commit log-message.
         */
        private String message;
        /**
         * The branches for this revision.
         */
        private String branches;

        public Revision() {
/**
 * Since these have to be initialized when correctly parsing the
 * command's output, then initializing them to empty strings
 * is a safety measure against bad parsing errors.
 * what about backward compatibility here??
 *
            state = "";
            lines = "";
            message = "";
            branches = "";
 */
        }

        
        public LogInformation getLogInfoHeader() {
            return LogInformation.this;
        }
        
        public String getNumber() {
            return number;
        }

        public void setNumber(String number) {
            this.number = number;
        }

        public Date getDate() {
            return date;
        }

        public String getDateString() {
            return dateString;
        }

        public void setDateString(String dateString) {
            this.dateString = dateString;

            if (dateString == null) {
                this.date = null;
                return;
            }

            // Parse the date ...
            try {
                this.date = DATE_FORMAT.parse(dateString);
            }
            catch (Exception ex) {
                BugLog.getInstance().bug("Couldn't parse date " + dateString);
            }
        }

        public String getAuthor() {
            return author;
        }

        public void setAuthor(String author) {
            this.author = author;
        }

        public String getState() {
            return state;
        }

        public void setState(String state) {
            this.state = state;
        }

        public String getLines() {
            return lines;
        }

        public void setLines(String lines) {
            this.lines = lines;
        }
        
        /**
         * Returns how many lines were added in this revision.
         */
        public int getAddedLines() {
            if (lines != null) {
                int start = lines.indexOf('+');
                int end = lines.indexOf(' ');
                if (start >= 0 && end > start) {
                    String added = lines.substring(start + 1, end);
                    try {
                        int toReturn = Integer.parseInt(added);
                        return toReturn;
                    } catch (NumberFormatException exc) {
                        //TODO BUGLog..
                    }
                }
            }
            return 0;
        }
        
        public int getRemovedLines() {
            if (lines != null) {
                int start = lines.indexOf('-');
                if (start >= 0) {
                    String removed = lines.substring(start + 1);
                    try {
                        int toReturn = Integer.parseInt(removed);
                        return toReturn;
                    } catch (NumberFormatException exc) {
                        //TODO BUGLog..
                    }
                }
            }
            return 0;
            
        }

        public String getMessage() {
            return message;
        }

        public void setMessage(String message) {
            this.message = message;
        }

        public String getBranches() {
            return branches;
        }

        public void setBranches(String branches) {
            this.branches = branches;
        }
    }
}