CleanMetadata

#!/data/data/com.termux/files/usr/bin/bash

# Find orphaned assets from games that have been deleted.

##### Config #####
# Don't edit the configuration in this file as it would be overwritten on updates.
# Create the file .config/pegasus_android_helpers.conf and override the variables.

# leave empty to scan every directory in each platform
assetdirs="covers marquees screenshots videos wheels"

# delete all orphaned assets. Dangerous!
autodelete=no  # automatically delete orphaned assets (yes|no)

# script created to delete orphan assets
orphansfile=~/pegasus_rm_orphans.sh

##################
if [[ -f ~/.config/pegasus_android_helpers.conf ]]; then
    source ~/.config/pegasus_android_helpers.conf
fi

function find_match {
    platform=$1
    asset=$2
    game=${asset#$pdir$adir/}
    game=${game%.*}
    game="$(printf '%q' "${game}")" # escapes special characters
    res=$(find "$rompath/$platform" -name "${game}.*" |wc -l)
    if [[ "$res" == "0" ]]; then
        echo "rm \"$asset\"" >> $orphansfile
    fi
}

# Make sure there is no leftover script from a previous run
rm -f $orphansfile

inputline=$(grep -m 1 inputFolder ~/.skyscraper/config.ini)
if [[ "$inputline" == "" ]]; then
    echo "Couldn't find 'inputFolder' in Skyscraper's config file."
    quit 1
fi
rompath=${inputline##*=}
rompath="${rompath%\"}"
rompath="${rompath#\"}"
echo Looking for ROMs in $rompath

inputline=$(grep -m 1 mediaFolder ~/.skyscraper/config.ini)
if [[ "$inputline" == "" ]]; then
    inputline=$(grep -m 1 gameListFolder ~/.skyscraper/config.ini)
    if [[ "$inputline" == "" ]]; then
        inputline=$rompath
    fi
fi

mediapath=${inputline##*=}
mediapath="${mediapath%\"}"
mediapath="${mediapath#\"}"
echo Looking for media in $mediapath

# Check that the ROM dir is available
# if not it could delete all assets!
numplatforms=$(ls -d $rompath/*/ 2>/dev/null |wc -l)
if [[ "$numplatforms" == "0" ]]; then
    echo "The ROM  directory is empty or not available. Aborting to avoid deleting all assets."
    exit 0
fi

for pdir in $mediapath/*/
do
    platform=$(basename $pdir)
    # if assetdirs is empty scan all
    if [[ "$assetdirs" == "" ]]; then
        cd $pdir
        assetdirs=$( ls -d */ )
        assetdirs=${assetdirs//\/}
        cd -
    fi
    for adir in $assetdirs
    do
        if [[ -d $pdir$adir ]]; then
            fdir=$pdir$adir
            for asset in $fdir/*
            do
                # Special case: directory is empty
                if [[ "$asset" != "$fdir/*" ]]; then
                    find_match "$platform" "$asset"
                fi
            done
        else
            echo "No $adir for $pdir"
        fi
    done
done

num_orphans=$(cat $orphansfile 2>/dev/null |wc -l)

if [[ "$num_orphans" == "0" ]]; then
    echo "No orphaned assets found."
    read -n 1 -r -s -p "Press any key to continue..." key
    echo ""
    exit 0
fi

echo $num_orphans orphaned assets.


if [[ "$autodelete" == "yes" ]]; then
    source $orphansfile
    rm $orphansfile
fi