#!/bin/bash
set -x

NEOFORGE_VERSION=21.1.219
SERVER_VERSION=5.5

cd /data

if ! [[ "$EULA" = "false" ]]; then
    echo "eula=true" > eula.txt
else
    echo "You must accept the EULA to install."
    exit 99
fi

if ! [[ -f "Server-Files-$SERVER_VERSION.zip" ]]; then
    rm -fr config defaultconfigs kubejs mods packmenu Server-Files-* neoforge*

    curl -Lo "Server-Files-$SERVER_VERSION.zip" \
      -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36" \
      -H "Referer: https://www.curseforge.com/minecraft/modpacks/all-the-mods-10/files" \
      "https://mediafilez.forgecdn.net/files/7558/5734/ServerFiles-$SERVER_VERSION.zip" || exit 9
  
    unzip -u -o "Server-Files-$SERVER_VERSION.zip" -d /data
    DIR_TEST="ServerFiles-$SERVER_VERSION"
    if [[ $(find . -type d -maxdepth 1 | wc -l) -gt 1 ]]; then
        cd "${DIR_TEST}"
        find . -type d -exec chmod 777 {} +
        mv -f * /data
        cd /data
        rm -fr "$DIR_TEST"
    fi

    curl -Lo neoforge-${NEOFORGE_VERSION}-installer.jar https://api.mohistmc.com/project/youer/1.21.1/builds/543/download
fi

if [[ -n "$JVM_OPTS" ]]; then
    sed -i '/-Xm[s,x]/d' user_jvm_args.txt
    for j in ; do echo "" >> user_jvm_args.txt; done
fi
if [[ -n "$MOTD" ]]; then
    sed -i "s/^motd=.*/motd=$MOTD/" /data/server.properties
fi
if [[ -n "$ENABLE_WHITELIST" ]]; then
    sed -i "s/white-list=.*/white-list=$ENABLE_WHITELIST/" /data/server.properties
fi
if [[ -n "$ALLOW_FLIGHT" ]]; then
    sed -i "s/allow-flight=.*/allow-flight=$ALLOW_FLIGHT/" /data/server.properties
fi
if [[ -n "$MAX_PLAYERS" ]]; then
    sed -i "s/max-players=.*/max-players=$MAX_PLAYERS/" /data/server.properties
fi
if [[ -n "$ONLINE_MODE" ]]; then
    sed -i "s/online-mode=.*/online-mode=$ONLINE_MODE/" /data/server.properties
fi

# Initialize whitelist.json if not present
if [[ ! -f whitelist.json ]]; then
    echo "[]" > whitelist.json
fi

IFS=',' read -ra USERS <<< "$WHITELIST_USERS"
for raw_username in "${USERS[@]}"; do
    username=$(echo "$raw_username" | xargs)

    if [[ -z "$username" ]] || ! [[ "$username" =~ ^[a-zA-Z0-9_]{3,16}$ ]]; then
        echo "Whitelist: Invalid or empty username: '$username'. Skipping..."
        continue
    fi

    UUID=$(curl -s "https://playerdb.co/api/player/minecraft/$username" | jq -r '.data.player.id')
    if [[ "$UUID" != "null" ]]; then
        if jq -e ".[] | select(.uuid == \"$UUID\" and .name == \"$username\")" whitelist.json > /dev/null; then
            echo "Whitelist: $username ($UUID) is already whitelisted. Skipping..."
        else
            echo "Whitelist: Adding $username ($UUID) to whitelist."
            jq ". += [{\"uuid\": \"$UUID\", \"name\": \"$username\"}]" whitelist.json > tmp.json && mv tmp.json whitelist.json
        fi
    else
        echo "Whitelist: Failed to fetch UUID for $username."
    fi
done

# Initialize ops.json if not present
if [[ ! -f ops.json ]]; then
    echo "[]" > ops.json
fi

IFS=',' read -ra OPS <<< "$OP_USERS"
for raw_username in "${OPS[@]}"; do
    username=$(echo "$raw_username" | xargs)

    if [[ -z "$username" ]] || ! [[ "$username" =~ ^[a-zA-Z0-9_]{3,16}$ ]]; then
        echo "Ops: Invalid or empty username: '$username'. Skipping..."
        continue
    fi

    UUID=$(curl -s "https://playerdb.co/api/player/minecraft/$username" | jq -r '.data.player.id')
    if [[ "$UUID" != "null" ]]; then
        if jq -e ".[] | select(.uuid == \"$UUID\" and .name == \"$username\")" ops.json > /dev/null; then
            echo "Ops: $username ($UUID) is already an operator. Skipping..."
        else
            echo "Ops: Adding $username ($UUID) as operator."
            jq ". += [{\"uuid\": \"$UUID\", \"name\": \"$username\", \"level\": 4, \"bypassesPlayerLimit\": false}]" ops.json > tmp.json && mv tmp.json ops.json
        fi
    else
        echo "Ops: Failed to fetch UUID for $username."
    fi
done

sed -i 's/server-port.*/server-port=25565/g' server.properties

java -jar neoforge-${NEOFORGE_VERSION}-installer.jar nogui