#!/bin/bash

readonly THISSCRIPT=$0
readonly DISTRIB=$1
readonly BRANCH=$2
readonly FOLDER=$3
readonly ARCHS=$4

source /home/vinaigrette/config/config
source /home/vinaigrette/scripts/common.sh

# ##### #
# Usage #
# ##### #

function usage()
{
    cat << EOF

Usage:
  $THISSCRIPT <distrib> <branch> <folder>

Arguments:
  <distrib>         buster or bullseye
  <branch>          stable, testing, or unstable
  <folder>          the folder in which to build...
  <archs>           list of archs to build (or empty for autodetect). For example: amd63,armhf
EOF
}


function main()
{
    grep -q "^Codename: $DISTRIB$" $REPO_CONFIG || critical "Invalid distribution $DISTRIB"
    grep -q "^Components: .*$BRANCH.*$" $REPO_CONFIG || critical "Invalid branch $BRANCH"
    [[ -n "$FOLDER" ]] || critical "Need a folder in which to build"

    readonly PKG_DIR=$(readlink -fn $FOLDER)
    readonly ROOT_DIR=$(readlink -fn ${PKG_DIR}/../)
    cd $PKG_DIR

    readonly PACKAGE=$(dpkg-parsechangelog | awk '/^Source: / {print $2}')
    readonly VERSION=$(dpkg-parsechangelog | awk '/^Version: / {print $2}')

    boxed "Building ${PACKAGE} ${VERSION} ..."

    if [[ -n "$ARCHS" ]]
    then
        archs="$(echo $ARCHS | tr ',' ' ')"
        # Architecture-agnostic packages have 'architecture: all' in their control files
        # others have 'architecture: any'
    elif grep -q "Architecture: all" $PKG_DIR/debian/control
    then
        archs="all"
    else
        archs="$REPO_ARCHS"
    fi

    for arch in $archs
    do
        sendxmpppy "⏳ Starting build for ${PACKAGE}/${VERSION} for $DISTRIB/$BRANCH/$arch ..."
        if ! build $arch
        then
            sendxmpppy "❌  Failed   build for ${PACKAGE}/${VERSION} for $DISTRIB/$BRANCH/$arch ?!"
            critical "Failed to build ${PACKAGE}/${VERSION} for $DISTRIB/$BRANCH/$arch"
        fi

        if [[ $arch == "all" ]]
        then
            changearch="amd64"
        else
            changearch=$arch
        fi

        if reprepro --waitforlock 6 -b $REPO_DIR -C $BRANCH include $DISTRIB ${ROOT_DIR}/${PACKAGE}_${VERSION}_$changearch.changes
        then
            sendxmpppy "✔️  Completed build for ${PACKAGE}/${VERSION} for $DISTRIB/$BRANCH/$arch."
        else
            sendxmpppy "❌ Failed to include change of ${PACKAGE}/${VERSION} for $DISTRIB/$BRANCH/$arch ?!"
        fi
    done
}


function build()
{
    local arch=$1

    local opts=""

    opts+=" -d $DISTRIB"
    opts+=" --no-run-lintian"
    opts+=" --no-run-piuparts"
    opts+=" --no-run-autopkgtest"

    if [[ "$arch" != "all" ]]
    then
        opts+=" --host=$arch"
    fi

    if [[ -n "$DEBUG" ]]
    then
        opts+="--anything-failed-commands='%s'"
    fi

    sbuild $opts
}


[[ "$1" =~ ^-h|--help$ ]] && (usage; exit 0) || main