package org.apache.maven.artifact.resolver;

import org.apache.maven.artifact.repository.MavenJPackageDepmap;

import java.io.File;

import java.util.List;

import java.util.LinkedList;

import java.util.Hashtable;

import org.sonatype.aether.repository.WorkspaceReader;

import org.sonatype.aether.repository.WorkspaceRepository;

import org.sonatype.aether.artifact.Artifact;

public class JavadirWorkspaceReader

    implements WorkspaceReader

{

    private WorkspaceRepository workspaceRepository;

    private static final char GROUP_SEPARATOR = '.';

    private static final char PATH_SEPARATOR = '/';

    public JavadirWorkspaceReader() {

        workspaceRepository = new WorkspaceRepository("javadir-workspace");

    }

    public WorkspaceRepository getRepository() {

        return workspaceRepository;

    }

    public File findArtifact( Artifact artifact ) {

    	MavenJPackageDepmap.debug("=============JAVADIRREADER-FIND_ARTIFACT: " + artifact.getArtifactId());

        StringBuffer path = new StringBuffer();

        String artifactId = artifact.getArtifactId();

        String groupId = artifact.getGroupId();

        String version = artifact.getVersion();

        MavenJPackageDepmap.debug("Wanted GROUPID=" + groupId);

        MavenJPackageDepmap.debug("Wanted ARTIFACTID=" + artifactId);

        if (!groupId.startsWith("JPP")) {

            MavenJPackageDepmap map = MavenJPackageDepmap.getInstance();

            Hashtable<String,String> newInfo = map.getMappedInfo(groupId, artifactId, version);

            groupId = (String) newInfo.get("group");

            artifactId = (String) newInfo.get("artifact");

        }

        MavenJPackageDepmap.debug("Resolved GROUPID=" + groupId);

        MavenJPackageDepmap.debug("Resolved ARTIFACTID=" + artifactId);

        if (artifact.getExtension().equals("pom")) {

            path = getPOMPath(groupId, artifactId);

        } else if (artifact.getExtension().equals("signature")) {

        	path.append("/usr/share/maven/repository/");

            path.append( groupId ).append( '/' );

            path.append( artifactId ).append( ".signature" );

        } else {

        	path.append("/usr/share/maven/repository/");

            path.append( groupId ).append( '/' );

            path.append( artifactId ).append( ".jar" );

        }

        MavenJPackageDepmap.debug("Returning " + path.toString());

        File ret = new File(path.toString());

        // if file doesn't exist return null to delegate to other

        // resolvers (reactor/local repo)

        if ( ret.isFile() ) {

            MavenJPackageDepmap.debug("Returning " + path.toString());

            return ret;

        } else {

            MavenJPackageDepmap.debug("Returning null for gid:aid" + groupId + ":" + artifactId);

            return null;

        }

    }

    public List<String> findVersions( Artifact artifact ) {

        List<String> ret = new LinkedList<String>();

        ret.add("latest");

        return ret;

    }

    private StringBuffer getPOMPath(String groupId, String artifactId) {

        StringBuffer path = new StringBuffer();

        String fName = groupId.replace(PATH_SEPARATOR, GROUP_SEPARATOR) + "-" + artifactId + ".pom";

        path.append(System.getProperty("maven.local.pom.path", "JPP/maven2/poms")).append("/").append(fName);

        java.io.File f;

        // NOTE: We are returning default_poms/ as the path for this pom

        // even though it may not exist there. This may cause an error,

        // but that is fine because if the pom is not there, there is

        // a serious problem anyways..

        f = new java.io.File(System.getProperty("maven.local.default.repo", "/usr/share/maven2/repository") + "/" + path.toString());

        //System.err.println("Checking path " + f.getAbsolutePath() + " for the pom");

        if (!f.exists()) {

            path = new StringBuffer();

            path.append(System.getProperty("maven.local.default.pom.path", "JPP/maven2/default_poms")).append("/").append(fName);

        }

        path.insert(0, "/usr/share/maven2/repository/");

        return path;

    }

}