package service

import (
	"bytes"
	"city_chips/internal/model"
	"city_chips/internal/repository"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"github.com/spf13/viper"
	"io"
	"net/http"
	"net/url"
	"reflect"
)

type IlluminatingService interface {
	GetIlluminating(ctx context.Context, id int64) (*model.Illuminating, error)
	Illuminating(method, url string, body any) ([]byte, error)
	GetStatistics() ([]byte, error)
	GetBaseecic(currentPage, device_type_id, devices_enabled, pageSize int, query string) (model.IlluminatingBaseecic, error)
}

func NewIlluminatingService(
	service *Service,
	illuminatingRepository repository.IlluminatingRepository,
	viperViper *viper.Viper,
	client *http.Client,
) IlluminatingService {
	if client == nil {
		client = http.DefaultClient
	}
	return &illuminatingService{
		Service:                service,
		illuminatingRepository: illuminatingRepository,
		conf:                   viperViper,
		client:                 client,
	}
}

type illuminatingService struct {
	*Service
	illuminatingRepository repository.IlluminatingRepository
	conf                   *viper.Viper
	client                 *http.Client
}

func (s *illuminatingService) GetIlluminating(ctx context.Context, id int64) (*model.Illuminating, error) {
	return s.illuminatingRepository.GetIlluminating(ctx, id)
}

//	func (s *illuminatingService) Illuminating(methond, url string, body any) ([]byte, error) {
//		urls := s.conf.GetString("illuminating.baseUrl") + s.conf.GetString("illuminating.api.login")
//		authorization := s.conf.GetString("illuminating.authorization")
//		clientId := s.conf.GetInt("illuminating.clientId")
//		mobile := s.conf.GetString("illuminating.mobile")
//		password := s.conf.GetString("illuminating.password")
//		requst := model.LoginRequst{
//			Authorization: authorization,
//			ClientId:      clientId,
//			Mobile:        mobile,
//			Password:      password,
//		}
//		var login model.Login
//		var reqBody io.Reader
//		bodyBytes, err := json.Marshal(requst)
//		if err != nil {
//			return nil, err
//		}
//		reqBody = bytes.NewBuffer(bodyBytes)
//		request, err := http.NewRequest("POST", urls, reqBody)
//		if err != nil {
//			return nil, err
//		}
//		client := &http.Client{}
//		response, err := client.Do(request)
//		defer response.Body.Close()
//		if err != nil {
//			return nil, err
//		}
//		responseBody, err := io.ReadAll(response.Body)
//		if err != nil {
//			return nil, err
//		}
//		err = json.Unmarshal(responseBody, &login)
//		if err != nil {
//			return nil, err
//		}
//		if body != nil {
//			bodyBytes, err := json.Marshal(requst)
//			if err != nil {
//				return nil, err
//			}
//			reqBody = bytes.NewBuffer(bodyBytes)
//		}
//		var Bodys io.Reader
//		if body != nil {
//			Bytes, err := json.Marshal(body)
//			if err != nil {
//				return nil, err
//			}
//			Bodys = bytes.NewBuffer(Bytes)
//		}
//		newRequest, err := http.NewRequest(methond, url, Bodys)
//		if err != nil {
//			return nil, err
//		}
//		newRequest.Header.Set("Authorization", login.AccessToken)
//		newResponse, err := client.Do(newRequest)
//		defer newResponse.Body.Close()
//		if err != nil {
//			return nil, err
//		}
//		respBody, err := io.ReadAll(newResponse.Body)
//		if err != nil {
//			return nil, err
//		}
//		return respBody, nil
//	}
func (s *illuminatingService) Illuminating(method, url string, body any) ([]byte, error) {
	login, err := s.login()
	if err != nil {
		return nil, err
	}

	var reqBody io.Reader
	var finalURL = url

	// 如果是 GET 请求，把 body 当作 query 参数处理
	if method == http.MethodGet || method == "" {
		vals, err := buildQueryParams(body)
		if err != nil {
			return nil, err
		}
		finalURL = addQueryParams(url, vals)
	} else {
		// 非 GET 请求才构造 body
		reqBody, err = buildRequestBody(body)
		if err != nil {
			return nil, err
		}
	}

	request, err := http.NewRequest(method, finalURL, reqBody)
	if err != nil {
		return nil, err
	}
	request.Header.Set("Authorization", login.AccessToken)

	response, err := s.client.Do(request)
	if err != nil {
		return nil, err
	}
	defer response.Body.Close()

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

// login 封装登录逻辑
func (s *illuminatingService) login() (*model.Login, error) {
	auth := s.conf.GetString("illuminating.authorization")
	clientId := s.conf.GetInt("illuminating.clientId")
	mobile := s.conf.GetString("illuminating.mobile")
	password := s.conf.GetString("illuminating.password")

	loginReq := model.LoginRequst{
		Authorization: auth,
		ClientId:      clientId,
		Mobile:        mobile,
		Password:      password,
	}

	bodyBytes, err := json.Marshal(loginReq)
	if err != nil {
		return nil, err
	}

	url := s.conf.GetString("illuminating.baseUrl") + s.conf.GetString("illuminating.api.login")
	request, err := http.NewRequest("POST", url, bytes.NewBuffer(bodyBytes))
	if err != nil {
		return nil, err
	}

	response, err := s.client.Do(request)
	if err != nil {
		return nil, err
	}
	defer response.Body.Close()

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

	var login model.Login
	if err := json.Unmarshal(respBody, &login); err != nil {
		return nil, err
	}

	return &login, nil
}

// 构建请求体工具函数
func buildRequestBody(body any) (io.Reader, error) {
	if body == nil {
		return nil, nil
	}
	bodyBytes, err := json.Marshal(body)
	if err != nil {
		return nil, err
	}
	return bytes.NewBuffer(bodyBytes), nil
}
func buildQueryParams(params any) (url.Values, error) {
	vals := make(url.Values)

	switch p := params.(type) {
	case nil:
		return vals, nil
	case url.Values:
		return p, nil
	case map[string]string:
		for k, v := range p {
			vals.Add(k, v)
		}
	case map[string][]string:
		for k, v := range p {
			for _, vv := range v {
				vals.Add(k, vv)
			}
		}
	default:
		// 使用反射解析结构体字段
		t := reflect.TypeOf(p)
		v := reflect.ValueOf(p)
		for i := 0; i < t.NumField(); i++ {
			field := t.Field(i)
			value := v.Field(i).Interface()

			tag := field.Tag.Get("json")
			if tag == "" {
				tag = field.Name
			}

			vals.Add(tag, fmt.Sprintf("%v", value))
		}
	}

	return vals, nil
}
func addQueryParams(baseURL string, values url.Values) string {
	if len(values) == 0 {
		return baseURL
	}
	u, err := url.Parse(baseURL)
	if err != nil {
		return baseURL // 忽略错误直接返回原值
	}
	q := u.Query()
	for k, vs := range values {
		for _, v := range vs {
			q.Add(k, v)
		}
	}
	u.RawQuery = q.Encode()
	return u.String()
}

// GetStatistics 获取统计信息
func (s *illuminatingService) GetStatistics() ([]byte, error) {
	urls := s.conf.GetString("illuminating.baseUrl") + s.conf.GetString("illuminating.api.statistics")
	illuminating, err := s.Illuminating("GET", urls, nil)
	if err != nil {
		return nil, errors.New("获取统计信息失败")
	}
	return illuminating, nil
}

// GetBaseecic 获取照明监控列表
func (s *illuminatingService) GetBaseecic(currentPage, device_type_id, devices_enabled, pageSize int, query string) (model.IlluminatingBaseecic, error) {
	var baseecic model.IlluminatingBaseecic
	urls := s.conf.GetString("illuminating.baseUrl") + s.conf.GetString("illuminating.api.baseecic")
	m := make(map[string]any)
	m["currentPage"] = currentPage
	m["device_type_id"] = device_type_id
	m["devices_enabled"] = devices_enabled
	m["pageSize"] = pageSize
	m["query"] = query

	illuminating, err := s.Illuminating("POST", urls, m)
	if err != nil {
		return model.IlluminatingBaseecic{}, errors.New("获取统计信息失败")
	}
	err = json.Unmarshal(illuminating, &baseecic)
	if err != nil {
		return model.IlluminatingBaseecic{}, errors.New("json反序列化失败")
	}
	return baseecic, nil
}