#!/bin/bash
set -e

source .travis/logger.sh
source .travis/common-functions.sh

function push_docs() {
    if git diff --quiet docs; then
        log_info "No changes in docs..."
    else
        log_info "Found changes in docs..."

        if [ "$TRAVIS_BRANCH" == "master" ]; then
            git config user.name "Travis CI (pmd-bot)"
            git config user.email "andreas.dangel+pmd-bot@adangel.org"
            git add -A docs
            MSG="Update documentation

TRAVIS_JOB_NUMBER=${TRAVIS_JOB_NUMBER}
TRAVIS_COMMIT_RANGE=${TRAVIS_COMMIT_RANGE}"
            git commit -m "$MSG"
            git push git@github.com:pmd/pmd.git HEAD:master
            log_success "Successfully pushed docs update"
        else
            log_info "Not on master branch, won't commit+push"
        fi
    fi
}

function upload_baseline() {
    log_info "Generating and uploading baseline for pmdtester..."
    cd ..
    bundle config --local gemfile pmd/Gemfile
    bundle exec pmdtester -m single -r ./pmd -p ${TRAVIS_BRANCH} -pc ./pmd/.travis/all-java.xml -l ./pmd/.travis/project-list.xml -f
    cd target/reports
    BRANCH_FILENAME="${TRAVIS_BRANCH/\//_}"
    zip -q -r ${BRANCH_FILENAME}-baseline.zip ${BRANCH_FILENAME}/
    ../../pmd/.travis/travis_wait "rsync -avh ${BRANCH_FILENAME}-baseline.zip ${PMD_SF_USER}@web.sourceforge.net:/home/frs/project/pmd/pmd-regression-tester/"
    if [ $? -ne 0 ]; then
        log_error "Error while uploading ${BRANCH_FILENAME}-baseline.zip to sourceforge!"
        log_error "Please upload manually: https://sourceforge.net/projects/pmd/files/pmd-regression-tester/"
        exit 1
    else
        log_success "Successfully uploaded ${BRANCH_FILENAME}-baseline.zip to sourceforge"
    fi
}

VERSION=$(./mvnw -q -Dexec.executable="echo" -Dexec.args='${project.version}' --non-recursive org.codehaus.mojo:exec-maven-plugin:1.5.0:exec)
log_info "Building PMD ${VERSION} on branch ${TRAVIS_BRANCH}"

MVN_BUILD_FLAGS="-B -V"

if travis_isOSX; then

    log_info "The build is running on OSX"
    ./mvnw verify $MVN_BUILD_FLAGS

elif travis_isPullRequest; then

    log_info "This is a pull-request build"
    ./mvnw verify $MVN_BUILD_FLAGS
	(
	    set +e
	    log_info "Running danger"
	    bundle exec danger --verbose
	)

elif travis_isPush; then

    if [[ "${VERSION}" != *-SNAPSHOT && "${TRAVIS_TAG}" != "" ]]; then
        echo -e "\n\n"
        log_info "This is a release build for tag ${TRAVIS_TAG}"
        echo -e "\n\n"
        ./mvnw deploy -Possrh,pmd-release $MVN_BUILD_FLAGS
    elif [[ "${VERSION}" == *-SNAPSHOT ]]; then
        log_info "This is a snapshot build"
        ./mvnw deploy -Possrh $MVN_BUILD_FLAGS
        push_docs
    else
        # other build. Can happen during release: the commit with a non snapshot version is built, but not from the tag.
        log_info "This is some other build, probably during release: commit with a non-snapshot version on branch master..."
        ./mvnw verify $MVN_BUILD_FLAGS
        # we stop here - no need to execute further steps
        exit 0
    fi

    (
        # disable fast fail, exit immediately, in this subshell
        set +e

        echo -e "\n\n"
        log_info "Uploading pmd distribution to sourceforge..."
        .travis/travis_wait "rsync -avh pmd-dist/target/pmd-*-${VERSION}.zip ${PMD_SF_USER}@web.sourceforge.net:/home/frs/project/pmd/pmd/${VERSION}/"
        if [ $? -ne 0 ]; then
            log_error "Error while uploading pmd-*-${VERSION}.zip to sourceforge!"
            log_error "Please upload manually: https://sourceforge.net/projects/pmd/files/pmd/"
            exit 1
        else
            log_success "Successfully uploaded pmd-*-${VERSION}.zip to sourceforge"
        fi

    )

    (   # UPLOAD RELEASE NOTES TO SOURCEFORGE

        # This handler is called if any command fails
        function release_notes_fail() {
            log_error "Error while uploading release_notes.md as ReadMe.md to sourceforge!"
            log_error "Please upload manually: https://sourceforge.net/projects/pmd/files/pmd/"
        }

        # exit subshell after trap
        set -e
        trap release_notes_fail ERR

        RELEASE_NOTES_TMP=$(mktemp -t)

        .travis/render_release_notes.rb docs/pages/release_notes.md | tail -n +6 > "$RELEASE_NOTES_TMP"

        rsync -avh "$RELEASE_NOTES_TMP" ${PMD_SF_USER}@web.sourceforge.net:/home/frs/project/pmd/pmd/${VERSION}/ReadMe.md

        log_success "Successfully uploaded release_notes.md as ReadMe.md to sourceforge"

    )


    (
        # disable fast fail, exit immediately, in this subshell
        set +e

        upload_baseline
    )

else
    log_info "This is neither a pull request nor a push. Not executing any build."
    exit 1
fi