package com.atlassian.maven.plugins.jgitflow.extension.command;

import java.util.List;

import com.atlassian.jgitflow.core.GitFlowConfiguration;
import com.atlassian.jgitflow.core.JGitFlow;
import com.atlassian.jgitflow.core.JGitFlowReporter;
import com.atlassian.jgitflow.core.command.JGitFlowCommand;
import com.atlassian.jgitflow.core.exception.JGitFlowExtensionException;
import com.atlassian.jgitflow.core.extension.ExtensionCommand;
import com.atlassian.jgitflow.core.extension.ExtensionFailStrategy;
import com.atlassian.maven.plugins.jgitflow.ReleaseContext;
import com.atlassian.maven.plugins.jgitflow.helper.BranchHelper;
import com.atlassian.maven.plugins.jgitflow.helper.PomUpdater;
import com.atlassian.maven.plugins.jgitflow.helper.ProjectHelper;
import com.atlassian.maven.plugins.jgitflow.provider.ContextProvider;
import com.atlassian.maven.plugins.jgitflow.provider.JGitFlowProvider;
import com.atlassian.maven.plugins.jgitflow.provider.ProjectCacheKey;
import com.atlassian.maven.plugins.jgitflow.util.NamingUtil;

import org.apache.commons.lang.StringUtils;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.component.annotations.Requirement;
import org.eclipse.jgit.api.Git;

@Component(role = UpdateFeaturePomsWithSnapshotsCommand.class)
public class UpdateFeaturePomsWithSnapshotsCommand implements ExtensionCommand
{
    @Requirement
    private ContextProvider contextProvider;

    @Requirement
    private JGitFlowProvider jGitFlowProvider;

    @Requirement
    private PomUpdater pomUpdater;

    @Requirement
    private ProjectHelper projectHelper;

    @Requirement
    private BranchHelper branchHelper;
    
    @Override
    public void execute(GitFlowConfiguration configuration, Git git, JGitFlowCommand gitFlowCommand, JGitFlowReporter reporter) throws JGitFlowExtensionException
    {
        String unprefixedBranchName = "";
        
        try
        {
            ReleaseContext ctx = contextProvider.getContext();
            
            if(!ctx.isEnableFeatureVersions())
            {
                return;    
            }
            
            JGitFlow flow = jGitFlowProvider.gitFlow();
            
            unprefixedBranchName = branchHelper.getUnprefixedCurrentBranchName();

            //reload the reactor projects for release
            List<MavenProject> branchProjects = branchHelper.getProjectsForCurrentBranch();

            String featureVersion = NamingUtil.camelCaseOrSpaceToDashed(unprefixedBranchName);
            featureVersion = StringUtils.replace(featureVersion, "-", "_");

            pomUpdater.addFeatureVersionToSnapshotVersions(ProjectCacheKey.FEATURE_START_LABEL, featureVersion, branchProjects);

            projectHelper.commitAllPoms(flow.git(), branchProjects, ctx.getScmCommentPrefix() + "updating poms for " + featureVersion + " version" + ctx.getScmCommentSuffix());
            
        }
        catch (Exception e)
        {
            throw new JGitFlowExtensionException("Error updating poms with feature versions for branch '" + unprefixedBranchName + "'");
        }
    }

    @Override
    public ExtensionFailStrategy failStrategy()
    {
        return ExtensionFailStrategy.ERROR;
    }
}