164 lines
5.0 KiB
Bash
164 lines
5.0 KiB
Bash
#!/bin/bash
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set -euo pipefail
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# =============================================================================
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# 功能描述:
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# 从指定 API 获取随机壁纸，强制转换为 PNG 格式，并使用 noctalia IPC 协议设置为桌面壁纸。
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#
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# 核心特性:
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# 1. 异步下载与长耗时心跳通知。
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# 2. 健壮性检查：校验文件大小与 MIME 类型，剔除损坏/无效文件。
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# 3. 格式转换：自动将下载的图片(无论原格式)转换为 noctalia 支持的 PNG 格式。
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# 4. 资源自清洁：根据配置自动清理历史壁纸，保持存储整洁。
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# 5. 解耦设计：更新完毕后触发异步的系统 UI 更新钩子 (matugen, niri等)。
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#
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# 选项:
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# -k: 保留模式，不清理旧壁纸
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# -s: 静默模式，关闭桌面通知
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# -h: 显示帮助信息
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#
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# 依赖:
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# curl, file, notify-send, ImageMagick (magick 或 convert), qs (noctalia wrapper)
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# =============================================================================
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# ================= 默认配置 =================
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API_URL="https://t.alcy.cc/pc/"
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SAVE_DIR="$HOME/Pictures/Wallpapers/api-random-download"
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# 自动清理时保留最近多少张图片
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KEEP_COUNT=40
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# 默认开关状态 (可被参数覆盖)
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ENABLE_CLEANUP=true
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SILENT_MODE=false
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# ================= 参数解析 =================
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usage() {
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echo "用法: $(basename "$0") [-k] [-s] [-h]"
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echo " -k (Keep) 保留模式：不清理旧壁纸"
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echo " -s (Silent) 静默模式：不发送任何 notify-send 通知"
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echo " -h 帮助信息"
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exit 0
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}
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while getopts "ksh" opt; do
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case $opt in
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k) ENABLE_CLEANUP=false ;;
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s) SILENT_MODE=true ;;
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h) usage ;;
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*) usage ;;
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esac
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done
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# ================= 辅助函数 =================
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# 统一通知函数 (兼容 set -u 处理未传递的 $3)
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send_notify() {
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if [ "$SILENT_MODE" = false ]; then
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notify-send "$1" "$2" ${3:-}
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fi
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}
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# ================= 主逻辑 =================
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mkdir -p "$SAVE_DIR"
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TIMESTAMP=$(date +%s)
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RAW_PATH="${SAVE_DIR}/wall_${TIMESTAMP}_raw.tmp"
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FINAL_PATH="${SAVE_DIR}/wall_${TIMESTAMP}.png"
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# --- 1. 下载模块 (带心跳通知) ---
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if [ "$SILENT_MODE" = false ]; then
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(
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sleep 8
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while true; do
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notify-send "Wallpaper" "Downloading is still in progress..." --expire-time=5000 --icon=drive-harddisk --replace-id=999 || true
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sleep 8
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done
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) &
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NOTIFY_PID=$!
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else
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NOTIFY_PID=""
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fi
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send_notify "Wallpaper" "Downloading from Alcy..." "--expire-time=5000"
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USER_AGENT="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
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# 执行下载并做严格模式下的安全判断
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if ! curl -L -s -A "$USER_AGENT" --connect-timeout 10 -m 120 -o "$RAW_PATH" "$API_URL"; then
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[ -n "${NOTIFY_PID:-}" ] && kill "$NOTIFY_PID" 2>/dev/null || true
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send_notify "Wallpaper Error" "Download failed (Network/API Error)"
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exit 1
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fi
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# 下载结束，杀掉通知进程
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if [ -n "${NOTIFY_PID:-}" ]; then
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kill "$NOTIFY_PID" 2>/dev/null || true
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fi
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# 校验文件 (大小)
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if [ ! -f "$RAW_PATH" ] || [ "$(wc -c < "$RAW_PATH")" -lt 20480 ]; then
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send_notify "Wallpaper Error" "Download failed (File too small/Invalid)"
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rm -f "$RAW_PATH"
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exit 1
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fi
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# 校验文件 (MIME 类型)
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FILE_TYPE=$(file --mime-type -b "$RAW_PATH" || echo "unknown")
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if [[ "$FILE_TYPE" != image/* ]]; then
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send_notify "Wallpaper Error" "Not an image file ($FILE_TYPE)"
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rm -f "$RAW_PATH"
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exit 1
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fi
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# --- 2. 格式转换模块 (转为 PNG) ---
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# 检查 ImageMagick 是否存在 (兼容新版 magick 和旧版 convert)
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if command -v magick > /dev/null 2>&1; then
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IMG_TOOL="magick"
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elif command -v convert > /dev/null 2>&1; then
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IMG_TOOL="convert"
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else
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send_notify "Wallpaper Error" "ImageMagick not found. Please install it."
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rm -f "$RAW_PATH"
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exit 1
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fi
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# 执行转换
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if ! $IMG_TOOL "$RAW_PATH" "$FINAL_PATH"; then
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send_notify "Wallpaper Error" "Failed to convert image to PNG format"
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rm -f "$RAW_PATH" "$FINAL_PATH"
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exit 1
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fi
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# 转换成功，清理原始临时文件
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rm -f "$RAW_PATH"
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# --- 3. 应用模块 (noctalia ipc call) ---
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# 使用 qs 包装器调用 noctalia-shell 的 ipc，并将 monitor 参数设为 all
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qs -c noctalia-shell ipc call wallpaper set "$FINAL_PATH" all
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# --- 4. 钩子与清理 ---
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(
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if [ -x "$HOME/.config/scripts/matugen-update.sh" ]; then
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"$HOME/.config/scripts/matugen-update.sh" "$FINAL_PATH" > /dev/null || true
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fi
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sleep 0.5
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if [ -x "$HOME/.config/scripts/niri_set_overview_blur_dark_bg.sh" ]; then
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"$HOME/.config/scripts/niri_set_overview_blur_dark_bg.sh" > /dev/null || true
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fi
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# 动态清理逻辑
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if [ "$ENABLE_CLEANUP" = true ]; then
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DELETE_START=$((KEEP_COUNT + 1))
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# 这里的命名规范只包含时间戳，无特殊字符，xargs rm 是安全的
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cd "$SAVE_DIR" && ls -t | tail -n +"$DELETE_START" | xargs -I {} rm -- {} 2>/dev/null || true
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fi
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) &
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send_notify "Wallpaper Updated" "PNG applied successfully via Noctalia!"
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