#!/bin/bash

# FRPC 配置目录和文件路径
FRPC_FILE="/data/lsyfrpc/frpc"
FRPC_DIR="/data/lsyfrpc"
CONFIG_FILE="$FRPC_DIR/frpc.ini"

# 云端接口获取当前端口和 MAC 地址
function get_cloud_config() {
    mac_address=$(cat /sys/class/net/eth0/address)
    echo "MAC Address: $mac_address"

    # 尝试获取云端端口，最多重试 3 次
    retries=1
    for ((i=1; i<=retries; i++)); do
        response=$(curl -s -X 'POST' \
            'https://frp-box.jxm.cool/request_port/' \
            -H 'accept: application/json' \
            -H 'Authorization: Basic NTI0NzgxNTctMjY1Zi00ZGNjLWE0NDMtODE0YzJhMDMxYjhjOmM2ZDI3Nzc1LTJhMDgtNDkyZS1iMTExLTg5YWQzZDY5ZTliMA==' \
            -H 'Content-Type: application/json' \
            -d "{\"mac_address\": \"$mac_address\"}")

        cloud_port=$(echo "$response" | grep -o '"port":[0-9]*' | awk -F: '{print $2}')

        if [ -n "$cloud_port" ]; then
            # 成功获取到端口
            break
        else
            echo "[ERROR] Failed to get port from the cloud. Retry $i of $retries."
            if [ "$i" -eq "$retries" ]; then
                echo "[ERROR] Max retries reached. Exiting."
                exit 1
            fi
            sleep 5  # 等待 5 秒后再重试
        fi
    done

    cloud_mac_address="$mac_address-v1"
    echo "Cloud MAC Address: $cloud_mac_address"
    echo "Cloud Port: $cloud_port"
}

# 检查 FRPC 配置是否与云端一致
function check_config() {
    local cloud_port="$1"
    local cloud_mac_address="$2"

    # 从配置文件中读取现有的 MAC 地址和端口
    current_mac_address=$(grep -o '\[.*\]' "$CONFIG_FILE" | tr -d '[]')
    current_port=$(grep -o 'remote_port = [0-9]*' "$CONFIG_FILE" | awk '{print $3}')
    
    echo "Current MAC Address in frpc.ini: $current_mac_address"
    echo "Current Port in frpc.ini: $current_port"

    # 比较配置文件中的 MAC 地址和端口是否与云端匹配
    if [ "$current_mac_address" != "$cloud_mac_address" ] || [ "$current_port" != "$cloud_port" ]; then
        echo "[INFO] Configuration mismatch detected. Re-running install.sh..."
        sudo /bin/bash $FRPC_DIR/frp_install.sh
    else
        echo "[INFO] Configuration is up to date."
    fi
}

# 主函数，获取云端配置并检查配置
main() {
    get_cloud_config
    check_config "$cloud_port" "$cloud_mac_address"
}

main