#!/bin/sh

# Author: Pali Rohár
# License: GPLv3+
# Description: Show state of CSSU packages in apt repositories and on github

dpkg_cmp() {
    if [ -n "$1" -a -n "$2" ] && dpkg --compare-versions "$1" "<<" "$2"; then
        return 0
    else
        return 1
    fi
}

GET_GIT_LIST=1
export var_file=$(mktemp /tmp/var_list_XXXX)

NORMAL=$(tput sgr0)
RED=$(tput setaf 1)
PURPLE=$(tput setaf 6)
ORANGE=$(tput setaf 3)

CMP_ORDER="git devel testing git-stable stable git-thumb thumb"

while getopts 123abcp: mode; do
    case $mode in
        1) GIT=1; TESTING=1;;
        2) GIT=1; GITTHUMB=1; THUMB=1;;
        3) GIT=1; GITSTABLE=1; STABLE=1;;
        a) GIT=1; DEVEL=1; TESTING=1;;
        b) GIT=1; DEVEL=1; TESTING=1; GITSTABLE=1; STABLE=1;;
        c) GIT=1; DEVEL=1; TESTING=1; GITTHUMB=1; THUMB=1;;
        p) GIT_PACKAGES=`echo $OPTARG | tr ',' ' '`; GET_GIT_LIST=0;;
    esac
done
shift $(($OPTIND - 1))

for VERSION in `echo $* | tr '[:upper:]' '[:lower:]'`; do
  case $VERSION in
    'git') GIT=1;;
    'devel') DEVEL=1;;
    'testing') TESTING=1;;
    'git-stable') GITSTABLE=1;;
    'stable') STABLE=1;;
    'git-thumb') GITTHUMB=1;;
    'thumb') THUMB=1;;
  esac
done

if (($GET_GIT_LIST)); then
    while (:); do
        PAGE_NO=$(( $PAGE_NO + 1 ));
        PKG_LIST=`wget --no-check-certificate -q "https://api.github.com/orgs/community-ssu/repos?per_page=100&page=$PAGE_NO" -O - | sed -n 's/^\s*"name": "\(.*\)",$/\1/p';`
        [[ "$PKG_LIST" == "" ]] && break;
        GIT_PACKAGES="$GIT_PACKAGES $PKG_LIST"
    done
fi

PACKAGES=
for git_package in $GIT_PACKAGES; do
    line=`wget --no-check-certificate -q https://raw.githubusercontent.com/community-ssu/$git_package/master/debian/changelog -O - | head -1 | sed -n 's/^\([^\ ]*\) (\(.*\)).*$/\1 \2/p'`
    package=`echo $line | cut -f1 -d' '`
    if [ -z "$package" ]; then
        package=$git_package
    fi
    PACKAGES="$PACKAGES $package"
    package=`echo $package | tr .+- ___`
    eval GIT_$package="`echo $line | cut -f2 -d' '`"
    (($GITSTABLE)) && eval GITSTABLE_$package="`wget --no-check-certificate -q https://raw.githubusercontent.com/community-ssu/$git_package/stable/debian/changelog -O - | head -1 | sed -n 's/^.*(\(.*\)).*$/\1/p'`"
    (($GITTHUMB)) && eval GITTHUMB_$package="`wget --no-check-certificate -q https://raw.githubusercontent.com/community-ssu/$git_package/thumb-testing/debian/changelog -O - | head -1 | sed -n 's/^.*(\(.*\)).*$/\1/p'`"
done

PACKAGES=`echo $PACKAGES | tr ' ' '\n' | sort -u`

if (($DEVEL)); then
    wget --no-check-certificate -q http://maemo.merlin1991.at/cssu/community-devel/dists/fremantle/free/source/Sources.gz -O - | gunzip -v | (
        package=
        while read key value; do
            if [ "$key" = "Package:" ]; then
                package=`echo $value | tr .+- ___`
            elif [ -z "$key" ]; then
                package=""
            elif [ "$key" = "Version:" ]; then
                if [ -n "$package" ]; then
                    eval old="\${DEVEL_$package}"
                    if [ -z "$old" ] || dpkg_cmp "$old" "$value"; then
                        eval echo DEVEL_$package="$value" >> $var_file
                        #echo "TEST - \${DEVEL_$package}"
                    fi
                fi
                package=""
            fi
        done
    )
fi

if (($THUMB)); then
    wget --no-check-certificate -q http://maemo.merlin1991.at/cssu/community-thumb/dists/fremantle/free/source/Sources.gz -O - | gunzip | (
        package=
        while read key value; do
            if [ "$key" = "Package:" ]; then
                package=`echo $value | tr .+- ___`
            elif [ -z "$key" ]; then
                package=""
            elif [ "$key" = "Version:" ]; then
                if [ -n "$package" ]; then
                    eval old="\${THUMB_$package}"
                    if [ -z "$old" ] || dpkg_cmp "$old" "$value"; then
                        eval echo THUMB_$package="$value" >> $var_file
                    fi
                fi
                package=""
            fi
        done
    )
fi

if (($TESTING)); then
    wget --no-check-certificate -q http://repository.maemo.org/community-testing/dists/fremantle/free/source/Sources.gz -O - | gunzip | (
        package=
        while read key value; do
            if [ "$key" = "Package:" ]; then
                package=`echo $value | tr .+- ___`
            elif [ -z "$key" ]; then
                package=""
            elif [ "$key" = "Version:" ]; then
                if [ -n "$package" ]; then
                    eval old="\${TESTING_$package}"
                    if [ -z "$old" ] || dpkg_cmp "$old" "$value"; then
                        eval echo TESTING_$package="$value" >> $var_file
                    fi
                fi
                package=""
            fi
        done
)
fi

if (($STABLE)); then
    wget --no-check-certificate -q http://repository.maemo.org/community/dists/fremantle/free/source/Sources.gz -O - | gunzip | (
        package=
        while read key value; do
            if [ "$key" = "Package:" ]; then
                package=`echo $value | tr .+- ___`
            elif [ -z "$key" ]; then
                package=""
            elif [ "$key" = "Version:" ]; then
                if [ -n "$package" ]; then
                    eval old="\${STABLE_$package}"
                    if [ -z "$old" ] || dpkg_cmp "$old" "$value"; then
                        eval echo STABLE_$package="$value" >> $var_file
                    fi
                fi
                package=""
            fi
        done
  )
fi

. $var_file
rm $var_file

printf "%-40s " "package"
(($GIT)) && CMP_LIST="GIT " && printf "%-35s " "git"
(($DEVEL)) && CMP_LIST="${CMP_LIST}DEVEL " && printf "%-35s " "devel"
(($TESTING)) && CMP_LIST="${CMP_LIST}TESTING " && printf "%-35s " "testing"
(($GITTHUMB)) && CMP_LIST="${CMP_LIST}GITTHUMB " && printf "%-35s " "git-thumb"
(($THUMB)) && CMP_LIST="${CMP_LIST}THUMB " && printf "%-35s " "thumb"
(($GITSTABLE)) && CMP_LIST="${CMP_LIST}GITSTABLE " && printf "%-35s " "git-stable"
(($STABLE)) && CMP_LIST="${CMP_LIST}STABLE" && printf "%-35s " "stable"
printf "\n"

#set -x
for git_package in $PACKAGES; do
    [ -z "$git_package" ] && continue;
    package=`echo $git_package | tr .+- ___`
    printf "%-40s " "$git_package"
    for COMPARE in $CMP_LIST; do
        COLOR="$NORMAL"
        AFTER=0
        eval version_cmp="\$${COMPARE}_$package"
        for COMPARE_WITH in $CMP_LIST; do
            [[ "$COMPARE" == "$COMPARE_WITH" ]] && AFTER=1 && continue;
            eval version_cmp_with="\$${COMPARE_WITH}_$package"
            if dpkg_cmp "$version_cmp" "$version_cmp_with"; then
                if (($AFTER)); then
                    [[ "$COLOR" == "$RED" ]] && COLOR="$PURPLE" && break;
                    COLOR="$ORANGE"
                else
                    COLOR="$RED"
                fi
            fi
        done
        printf "${COLOR}%-35s${NORMAL} " "$version_cmp"
    done
    printf "\n"
done