package remote

import (
	"encoding/json"
	"errors"
	"io"
	"net/http"
	"strings"
)

type client struct {
	gatewayUrl string
	username   string
	password   string
	cloudUrl   string
	token      string
}

var Client client

func Init() {
	//  todo 从环境变量中获取参数
	Client = client{
		gatewayUrl: "http://110.40.82.248:9990",
		username:   "api",
		password:   "123456",
		cloudUrl:   "http://103.139.212.110",
	}
}

type PortConfig struct {
	Port           string         `json:"port"`
	Edge           []string       `json:"edge"`
	Type           string         `json:"type"`
	Time           int            `json:"time"`
	Status         bool           `json:"status"`
	Rate           int            `json:"rate"`
	Whitelist      []string       `json:"whitelist"`
	Userpass       string         `json:"userpass"`
	AutoEdgeConfig AutoEdgeConfig `json:"auto_edge_config"`
}

type AutoEdgeConfig struct {
	Province   string `json:"province"`
	City       string `json:"city"`
	Isp        string `json:"isp"`
	Count      int    `json:"count"`
	PacketLoss int    `json:"packet_loss"`
}

func (c *client) PortConfigs(params ...PortConfig) error {
	resp, err := c.requestCloud("/port/configs", params)
	if err != nil {
		return err
	}
	defer func(Body io.ReadCloser) {
		_ = Body.Close()
	}(resp.Body)

	if resp.StatusCode != http.StatusOK {
		return errors.New("failed to configure port")
	}

	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return err
	}

	var result map[string]any
	err = json.Unmarshal(body, &result)
	if err != nil {
		return err
	}

	if result["code"] != 0 {
		return errors.New("failed to configure port")
	}

	return nil
}

func (c *client) requestGateway(url string, data any) (*http.Response, error) {
	jsonData, err := json.Marshal(data)
	if err != nil {
		return nil, err
	}

	req, err := http.NewRequest("POST", c.gatewayUrl+url, strings.NewReader(string(jsonData)))
	if err != nil {
		return nil, err
	}

	req.Header.Set("Content-Type", "application/json")
	req.SetBasicAuth(c.username, c.password)

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return nil, err
	}

	return resp, nil
}

func (c *client) requestCloud(url string, data any) (*http.Response, error) {
	jsonData, err := json.Marshal(data)
	if err != nil {
		return nil, err
	}

	req, err := http.NewRequest("POST", c.cloudUrl+url, strings.NewReader(string(jsonData)))
	if err != nil {
		return nil, err
	}

	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("token", c.token)

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return nil, err
	}

	return resp, nil
}