#!/bin/sh

URL=""
VERS=""
BASE=$PWD
while getopts ":u:v:h" opt; do
    case $opt in
    u)
        echo "DOCRELEASE: URL for package is $OPTARG"
        if [ -n "$OPTARG" ]; then
            URL=$OPTARG
        fi
        ;;
    v)
        echo "DOCRELEASE: Version is $OPTARG"
        if [ -n "$OPTARG" ]; then
            VERS=$OPTARG
        fi
        ;;
    \?)
      echo "DOCRELEASE: Invalid option: -$OPTARG"
      exit 1
      ;;
    :)
      echo "DOCRELEASE: Option -$OPTARG requires an argument."
      exit 1
      ;;
    h)
      echo "Usage: docrelease -u <URL> -v <version>
        URL specifies the URL of the .tar.gz package
        version specifies the output and version of the package"
        exit
      ;;
  esac
done

if [ ! "$URL" ]; then
    echo "Script demands a URL with -u."
    exit 1
fi
if [ ! "$VERS" ]; then
    echo "Script demands a version with -v. 5 is the default."
    VERS="5"
fi


FILE="${URL##*/}"
EXTENSION="${FILE##*.}"
echo "DOCRELEASE: url $URL"
echo "DOCRELEASE: file $FILE"
echo "DOCRELEASE: extension $EXTENSION"
echo "DOCRELEASE: version $VERS"
echo "DOCRELEASE: output  $VERS.tar.gz"

#Download package
if [ -f "$BASE/$FILE" ]; then
    echo "DOCRELEASE: $BASE/$FILE already exists. Will not download package."
else
    echo "DOCRELEASE: $BASE/$FILE does not exist. Will download package."
    WGET_ERROR=$(wget "$URL")
    if [ $? -ne 0 ]; then
        "DOCRELEASE: Error when downloading file."
        exit 1
    fi
fi

DIR=$(tar -tf $FILE | grep -o '^[^/]\+' | sort -u)
echo "DOCRELEASE: dir $DIR"

#Assume .tar.gz
if [ $EXTENSION = "gz" ]; then
    echo "DOCRELEASE: Untarring $FILE"
    tar zxf $FILE
    cd $BASE/$DIR
    ls
    ./configure -prefix $PWD/qtbase -opensource -confirm-license -release

    #build docs
    cd $BASE/$DIR/qtbase && make -j6 -s -w sub-src-qmake_all
    cd $BASE/$DIR/qtbase/src
    make -j6 -s -w sub-uic
    make -j6 -s -w sub-qdoc
    cd $BASE/$DIR
    make html_docs -j6
    #remove directories that are not part of the docs
    cd $BASE/$DIR/qtbase/doc/ && rm -rf src/ global/ README

    #print out useful information about the modules.
    echo "DOCRELEASE: PRINT DOCS" && ls && find . -name *-index.html
else
    echo "DOCRELEASE: Downloaded file must be a .tar.gz file"
    exit
fi

#Parse stage
############
if [ -d "$BASE/$DIR" ]; then
    echo "DOCRELEASE: Preparing to parse"
    mkdir $BASE/$DIR/$VERS
    ls

    cd $BASE/$DIR/

    #retrieve the parser
    wget doc-snapshot.qt-project.org/build/trollweb-qtdocs-parser.tar.gz
    tar xzf trollweb-qtdocs-parser.tar.gz
    cd trollweb-qtdocs-parser/

    #assume that the directories are there. Manual step.modules=$(ls -d */)
    cd $BASE/$DIR/qtbase/doc/
    ls -d */
    modules=$(ls -d */)

    #retrieve the parser
    cd $BASE/$DIR/trollweb-qtdocs-parser/

    for module in $modules
    do
        echo $module
        echo "DOCRELEASE: deleting $BASE/$DIR/$VERS/$module"
        rm -rf $RELEASE/$VERS/$module
        ./tw-qtdocs-parser $BASE/$DIR/qtbase/doc/$module $BASE/$DIR/$VERS/$module
    done

    cd $BASE/$DIR
    tar czf $VERS.tar.gz $VERS
else
    echo "DOCRELEASE: Doc Parsing Failed. Check results of built documentation."
    exit
fi