#!/bin/bash
# UpYun 部署脚本 - 使用 upx 官方工具
# 功能：增量同步本地文件到 UpYun，自动删除远程多余文件
#
# 用法: ./deploy_upyun.sh <本地目录> <远程目录> [线程数]
# 示例: ./deploy_upyun.sh ./public / 10
#
# 环境变量:
#   UPYUN_SERVICE   - 服务名 (bucket)
#   UPYUN_OPERATOR - 操作员
#   UPYUN_PASSWORD - 密码

set -e

START_TIME=$(date +%s)

# 参数
LOCAL_DIR="${1:-./public}"
REMOTE_DIR="${2:-/}"
THREADS="${3:-10}"

# 检查环境变量
SERVICE_NAME="${UPYUN_SERVICE:-}"
OPERATOR="${UPYUN_OPERATOR:-}"
PASSWORD="${UPYUN_PASSWORD:-}"

if [ -z "$SERVICE_NAME" ] || [ -z "$OPERATOR" ] || [ -z "$PASSWORD" ]; then
    echo "❌ 错误：缺少必要的环境变量"
    echo "需要设置:"
    echo "  UPYUN_SERVICE   - 服务名 (bucket)"
    echo "  UPYUN_OPERATOR - 操作员"
    echo "  UPYUN_PASSWORD - 密码"
    exit 1
fi

echo "🚀 UpYun 部署开始"
echo "=========================================="
echo "📦 服务名: $SERVICE_NAME"
echo "👤 操作员: $OPERATOR"
echo "📁 本地目录: $LOCAL_DIR"
echo "☁️  远程目录: $REMOTE_DIR"
echo "🔢 线程数: $THREADS"
echo "=========================================="

# 下载 upx
UPX_VERSION="0.4.9"
UPX_URL="https://collection.b0.upaiyun.com/softwares/upx/upx_${UPX_VERSION}_linux_amd64.tar.gz"
UPX_BIN="/tmp/upx"

if ! command -v upx &> /dev/null; then
    echo ""
    echo "📥 下载 upx v${UPX_VERSION}..."
    curl -sL "$UPX_URL" -o /tmp/upx.tar.gz

    if [ ! -f /tmp/upx.tar.gz ]; then
        echo "❌ 下载失败"
        exit 1
    fi

    tar -xzf /tmp/upx.tar.gz -C /tmp
    chmod +x /tmp/upx
    UPX_BIN="/tmp/upx"

    echo "✅ upx 安装完成"
else
    UPX_BIN="upx"
    echo "✅ upx 已安装: $(upx --version 2>/dev/null | head -1)"
fi

echo ""
echo "🔄 开始同步..."
echo ""

# 使用 upx sync 进行增量同步
# --delete: 删除远程端不存在的文件
# --thread: 并发线程数
# --overwrite: 覆盖已存在的文件
# --skip: 跳过相同的文件（基于 MD5）

$UPX_BIN sync "$LOCAL_DIR" "$REMOTE_DIR" \
    --delete \
    --thread "$THREADS" \
    --overwrite \
    --skip \
    --service "$SERVICE_NAME" \
    --operator "$OPERATOR" \
    --password "$PASSWORD" \
    --verbose

END_TIME=$(date +%s)
DURATION=$((END_TIME - START_TIME))
MINUTES=$((DURATION / 60))
SECONDS=$((DURATION % 60))

echo ""
echo "=========================================="
echo "✅ UpYun 部署完成！"
echo "⏱️  总耗时: ${MINUTES}分${SECONDS}秒"
echo "=========================================="