#!/bin/bash

SERVER_NAME="ichigo"
SERVER_DP_PATH="docker/games/minecraft/spigot/worlds/world/datapacks/"
DATAPACKS_FILE=datapacks.json
CRAFTINGTWEAKS_FILE=craftingtweaks.json
OUT_DIR=datapacks

set -e

check() {
    if ! command -v "$1" > /dev/null 2>&1; then
        echo "error: command '$1' is not available" >&2
        if [[ -n $2 ]]; then
            echo "       $2"
        fi
        exit 1
    fi
}

retry() {
    local timeout=1
    local max_retries=10
    local n=0

    until "$@"; do
        if [[ $n -gt "$max_retries" ]]; then
            echo "Command failed after $max_retries retries"
            exit 1
        fi
        sleep "$timeout"
        (( attempt++ ))
    done
}

check vtdl "You can download it from https://github.com/zekrotja/vtdl/releases or via 'cargo install --git https://github.com/zekrotja/vtdl'"
check jq

out_dir="$OUT_DIR"

if [ -d "$out_dir" ]; then
    rm -rf "$out_dir"
fi

updated=0

if [[ -f $DATAPACKS_FILE ]]; then
    echo "Downloading datapacks ..."
    vtdl download --packages "$DATAPACKS_FILE" --out-dir "$out_dir"
    (( updated++ ))
fi

if [[ -f $CRAFTINGTWEAKS_FILE ]]; then
    echo "Downloading craftingtweaks ..."
    vtdl download --packages "$CRAFTINGTWEAKS_FILE" --out-dir "$out_dir"
    (( updated++ ))
fi

if [[ $updated -lt 1 ]]; then
    echo "error: nothing to upload" >&2
    exit 1
fi

echo "Deleting old datapacks on server ..."
retry ssh "$SERVER_NAME" 'find '"$SERVER_DP_PATH"' -maxdepth 1 -type f -name "*.zip" -exec rm -f {} \+'

echo "Uploading new datapacks ..."
retry scp -r "$out_dir"/* "$SERVER_NAME:$SERVER_DP_PATH"