install_reader.sh

#!/bin/bash

set -euo pipefail

# 检查WebDAV环境变量
if [[ -z "${WEBDAV_URL}" || -z "${WEBDAV_USER}" || -z "${WEBDAV_PASS}" ]]; then
    echo "错误：必须设置WEBDAV_URL、WEBDAV_USER、WEBDAV_PASS环境变量"
    exit 1
fi

# 获取最新版本的重定向URL
echo "正在获取最新版本信息..."
redirect_url=$(curl -Ls -o /dev/null -w '%{url_effective}' 'https://github.com/hectorqin/reader/releases/latest')

# 提取版本标签
tag=$(basename "$redirect_url")
if [[ ! "$tag" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
    echo "错误：无效的版本标签 '$tag'"
    exit 1
fi
version="${tag#v}"
echo "检测到最新版本: $version"

# 构造下载链接
download_url="https://github.com/hectorqin/reader/releases/download/${tag}/reader-server-${version}.zip"
echo "开始下载: $download_url"

# 下载文件
if ! curl -LO "$download_url"; then
    echo "错误：文件下载失败"
    exit 1
fi

# 解压文件
zip_file="reader-server-${version}.zip"
echo "正在解压文件..."
unzip "$zip_file"

# +x权限
find . -type f -exec chmod +x {} +

# 数据恢复逻辑
DATA_DIR="./storage"
if [ ! -d "${DATA_DIR}" ] || [ -z "$(ls -A ${DATA_DIR})" ]; then
    echo "数据目录不存在或为空，尝试从WebDAV恢复备份..."
    if curl -u "${WEBDAV_USER}:${WEBDAV_PASS}" "${WEBDAV_URL}/latest-backup.tar.gz" -o /tmp/latest-backup.tar.gz; then
        echo "下载备份成功，正在解压..."
        mkdir -p "${DATA_DIR}"
        tar -xzf /tmp/latest-backup.tar.gz -C "${DATA_DIR}" 2>/dev/null || true
        echo "数据恢复完成"
    else
        echo "警告：无法下载备份文件，将使用空数据目录启动"
    fi
else
    echo "数据目录已存在，跳过恢复"
fi

# 启动定时备份任务
echo "启动定时备份任务，每半小时备份一次到WebDAV..."
(
while true; do
    sleep 1800
    echo "$(date '+%Y-%m-%d %T'): 开始备份数据..."
    BACKUP_FILE="/tmp/backup-$(date +%Y%m%d%H%M%S).tar.gz"
    tar -czf "${BACKUP_FILE}" -C "${DATA_DIR}" . >/dev/null 2>&1
    curl -u "${WEBDAV_USER}:${WEBDAV_PASS}" -T "${BACKUP_FILE}" "${WEBDAV_URL}/backup/$(basename "${BACKUP_FILE}")" --silent
    curl -u "${WEBDAV_USER}:${WEBDAV_PASS}" -T "${BACKUP_FILE}" "${WEBDAV_URL}/latest-backup.tar.gz" --silent
    rm -f "${BACKUP_FILE}"
    echo "$(date '+%Y-%m-%d %T'): 备份完成"
done
) &

# 执行启动脚本
if [ -f "./bin/startup.sh" ]; then
    echo "正在启动服务..."
    chmod +x "./bin/startup.sh"
    cd bin
    ./startup.sh -m single
    echo "服务已启动！"
else
    echo "错误：启动脚本不存在"
    exit 1
fi