#!/bin/bash
# This script takes the maps extracted from the gpgnet vault
# archive, extracts them from their .vault format and then
# renames them to mapname.v0001 and zips them up
# -Cursix

# NOTE: This script uses 7-zip to do extract/create zips

SOURCEDIR="/path/to/mods"
MIRRORDIR="/path/to/mirror"
STAGE1DIR="/path/to/stage1"
STAGE2DIR="/path/to/stage2"
LOGFILE="/path/to/log"

test -e $MIRRORDIR || mkdir -p $MIRRORDIR
test -e $STAGE1DIR || mkdir -p $STAGE1DIR

echo "===Log Start: `date "+%F %H:%M:%S"`===" > $LOGFILE
echo "---Begin Extraction---" >> $LOGFILE

cd $SOURCEDIR

# Find the latest version of each map and extract them to stagedir
for map in *; do
    # Since we can have 1.vault, 2.vault, etc, find the highest version
    # Probably could be done more efficiently
    mapver=0
    for (( i=1; i<20; i++ )); do
        if [ -f "$map/$i.vault" ]; then
            mapver=$i
        fi
    done

    # if mapver is 0 we obviously found no .vault file
    # save map name to logfile to look at manually
    if [ $mapver -lt 1 ]; then
        echo "ERROR! No vault in: $map" >> $LOGFILE
        continue
    fi

    echo "----------------------------------"
    echo "Extracting $map..."
    mkdir -p "$STAGE1DIR/$map"
    7za x "$map/$mapver.vault" -o"$STAGE1DIR/$map"
done

echo "Extraction Complete, begining rename and zip."
echo "This will take a while..."
echo "---Begin Rename and Zip---" >> $LOGFILE

cd $STAGE1DIR

# Look inside each extracted map, find the senario file and
# rename directory to map name. Should come out to something
# thismap.v0001 or similar according to Ze_PilOt
for map in *; do
    cd "$STAGE1DIR/$map"
    # Find the senario file, don't assume its ${map}_senario.lua
    i=0
    for scenario in "$( find . -maxdepth 1 -name "*_scenario.lua" )"; do
        mapname=''
        if [ -z "$scenario" ]; then
            echo "WARNING! No scenario file in: $map" >> $LOGFILE
            continue
        fi
        # Find the map variable and extract map name
        mapname=`grep "^[[:space:]]*map[[:space:]]*=" "$scenario" | sed "s/.*maps\/\(.*\)\/.*/\1/"`
        ((i++))
        # If i is greater than 1, we have more than one senario file. Complain!
        if [ $i -gt 1 ]; then
            echo "WARNING! $map may have more than one senario file!" >> $LOGFILE
        fi
    done
    if [ -z "$mapname" ]; then
        # Something went wrong, no mapname was found!
        echo "ERROR! Unable to find mapname value for: $map" >> $LOGFILE
        continue
    fi
    # Now rename it
    echo "Renaming $map to $mapname"
    mkdir -p "$STAGE2DIR/$map"
    cd $STAGE1DIR
    mv "$map" "$STAGE2DIR/$map/$mapname"
    cd "$STAGE2DIR/$map"
    echo "Zipping $map"
    7za a -tzip "$MIRRORDIR/$map.zip" "$mapname" -mx=9
    cd $STAGE1DIR
done

echo "==================="
echo "Done!"