#!/bin/bash
. /usr/share/openclash/openclash_ps.sh
. /usr/share/openclash/log.sh
. /usr/share/openclash/openclash_curl.sh

   set_lock() {
      exec 879>"/tmp/lock/openclash_chn.lock" 2>/dev/null
      flock -x 879 2>/dev/null
   }

   del_lock() {
      flock -u 879 2>/dev/null
      rm -rf "/tmp/lock/openclash_chn.lock" 2>/dev/null
   }

   set_lock

   FW4=$(command -v fw4)
   china_ip_route=$(uci -q get openclash.config.china_ip_route)
   china_ip6_route=$(uci -q get openclash.config.china_ip6_route)
   CHNR_CUSTOM_URL=$(uci -q get openclash.config.chnr_custom_url)
   CHNR6_CUSTOM_URL=$(uci -q get openclash.config.chnr6_custom_url)
   CNDOMAIN_CUSTOM_URL=$(uci -q get openclash.config.cndomain_custom_url)
   disable_udp_quic=$(uci -q get openclash.config.disable_udp_quic)
   small_flash_memory=$(uci -q get openclash.config.small_flash_memory)
   en_mode=$(uci -q get openclash.config.en_mode)
   restart=0
   
   
   if [ "$small_flash_memory" != "1" ]; then
      chnr_path="/etc/openclash/china_ip_route.ipset"
      chnr6_path="/etc/openclash/china_ip6_route.ipset"
      mkdir -p /etc/openclash
   else
      chnr_path="/tmp/etc/openclash/china_ip_route.ipset"
      chnr6_path="/tmp/etc/openclash/china_ip6_route.ipset"
      mkdir -p /tmp/etc/openclash
   fi

   LOG_OUT "Start Downloading The Chnroute Cidr List..."
   if [ -z "$CHNR_CUSTOM_URL" ]; then
      DOWNLOAD_FILE_CURL "https://ispip.clang.cn/all_cn.txt" "/tmp/china_ip_route.txt"
   else
      DOWNLOAD_FILE_CURL "$CHNR_CUSTOM_URL" "/tmp/china_ip_route.txt"
   fi

   if [ "$?" -eq 0 ]; then
      LOG_OUT "Chnroute Cidr List Download Success, Check Updated..."
      #预处理
      if [ -n "$FW4" ]; then
         echo "define china_ip_route = {" >/tmp/china_ip_route.list
         awk '!/^$/&&!/^#/{printf("    %s,'" "'\n",$0)}' /tmp/china_ip_route.txt >>/tmp/china_ip_route.list
         echo "}" >>/tmp/china_ip_route.list
         echo "add set inet fw4 china_ip_route { type ipv4_addr; flags interval; auto-merge; }" >>/tmp/china_ip_route.list
         echo 'add element inet fw4 china_ip_route $china_ip_route' >>/tmp/china_ip_route.list
      else
         echo "create china_ip_route hash:net family inet hashsize 1024 maxelem 1000000" >/tmp/china_ip_route.list
         awk '!/^$/&&!/^#/{printf("add china_ip_route %s'" "'\n",$0)}' /tmp/china_ip_route.txt >>/tmp/china_ip_route.list
      fi
      cmp -s /tmp/china_ip_route.list "$chnr_path"
      if [ "$?" -ne 0 ]; then
         LOG_OUT "Chnroute Cidr List Has Been Updated, Starting To Replace The Old Version..."
         mv /tmp/china_ip_route.list "$chnr_path" >/dev/null 2>&1
         if [ "$china_ip_route" -ne 0 ] || [ "$disable_udp_quic" -eq 1 ]; then
            restart=1
         fi
         LOG_OUT "Chnroute Cidr List Update Successful!"
      else
         LOG_OUT "Updated Chnroute Cidr List No Change, Do Nothing..."
      fi
   else
      LOG_OUT "Chnroute Cidr List Update Error, Please Try Again Later..."
   fi
   
   #ipv6
   LOG_OUT "Start Downloading The Chnroute6 Cidr List..."
   if [ -z "$CHNR6_CUSTOM_URL" ]; then
      DOWNLOAD_FILE_CURL "https://ispip.clang.cn/all_cn_ipv6.txt" "/tmp/china_ip6_route.txt"
   else
      DOWNLOAD_FILE_CURL "$CHNR6_CUSTOM_URL" "/tmp/china_ip6_route.txt"
   fi
   if [ "$?" -eq 0 ]; then
      LOG_OUT "Chnroute6 Cidr List Download Success, Check Updated..."
      #预处理
      if [ -n "$FW4" ]; then
         echo "define china_ip6_route = {" >/tmp/china_ip6_route.list
         awk '!/^$/&&!/^#/{printf("    %s,'" "'\n",$0)}' /tmp/china_ip6_route.txt >>/tmp/china_ip6_route.list
         echo "}" >>/tmp/china_ip6_route.list
         echo "add set inet fw4 china_ip6_route { type ipv6_addr; flags interval; auto-merge; }" >>/tmp/china_ip6_route.list
         echo 'add element inet fw4 china_ip6_route $china_ip6_route' >>/tmp/china_ip6_route.list
      else
         echo "create china_ip6_route hash:net family inet6 hashsize 1024 maxelem 1000000" >/tmp/china_ip6_route.list
         awk '!/^$/&&!/^#/{printf("add china_ip6_route %s'" "'\n",$0)}' /tmp/china_ip6_route.txt >>/tmp/china_ip6_route.list
      fi
      cmp -s /tmp/china_ip6_route.list "$chnr6_path"
      if [ "$?" -ne 0 ]; then
         LOG_OUT "Chnroute6 Cidr List Has Been Updated, Starting To Replace The Old Version..."
         mv /tmp/china_ip6_route.list "$chnr6_path" >/dev/null 2>&1
         if [ "$china_ip6_route" -ne 0 ] || [ "$disable_udp_quic" -eq 1 ]; then
            restart=1
         fi
         LOG_OUT "Chnroute6 Cidr List Update Successful!"
      else
         LOG_OUT "Updated Chnroute6 Cidr List No Change, Do Nothing..."
      fi
   else
      LOG_OUT "Chnroute6 Cidr List Update Error, Please Try Again Later..."
   fi

   if [ "$restart" -eq 1 ] && [ "$(unify_ps_prevent)" -eq 0 ]; then
      /etc/init.d/openclash restart >/dev/null 2>&1 &
   elif [ "$restart" -eq 0 ] && [ "$(unify_ps_prevent)" -eq 0 ] && [ "$(uci -q get openclash.config.restart)" -eq 1 ]; then
      /etc/init.d/openclash restart >/dev/null 2>&1 &
      uci -q set openclash.config.restart=0
      uci -q commit openclash
   elif [ "$restart" -eq 1 ] && [ "$(unify_ps_prevent)" -eq 0 ]; then
      uci -q set openclash.config.restart=1
      uci -q commit openclash
   fi
 
   rm -rf /tmp/china_ip*_route* >/dev/null 2>&1
   SLOG_CLEAN
   del_lock