#!/bin/bash

chk_deps()
{
    if ! command -v java >/dev/null 2>&1 || ! command -v wget >/dev/null 2>&1;then
        echo "Please install: java & wget, one of them was not found"
        exit 1
    fi
}

dl_bins()
{
    file_name="bfg"
    file_version="1.13.0"
    dldest="./"
    dltool="wget"
    dlurl="https://repo1.maven.org/maven2/com/madgag/bfg/${file_version}/${file_name}-${file_version}.jar"

    if [ -f ./bfg-1.13.0.jar ];then 
        echo "${file_name}-${file_version} already exists"
        return
    elif [ ${dltool} = "wget" ];then
        ${dltool} ${dlurl} -P ${dldest}
        
    elif [ ${dltool} = "aria2c" ];then
        ${dltool} -x 10 -j 10 ${dlurl} -d ${dldest}
    fi
}

chk_deps
dl_bins

trim_size="10M"

if [ ! -d .git/ ];then
    echo "This is not a git repository"

else
    java -jar ./${file_name}-${file_version}.jar --strip-blobs-bigger-than ${trim_size}
    git reflog expire --expire=now --all && git gc --prune=now --aggressive
    
fi