package bitrixClient

import (
	"encoding/json"
	"fmt"
	"github.com/gofiber/fiber/v2"
	"go.uber.org/zap"
	"penahub.gitlab.yandexcloud.net/backend/quiz/bitrix/internal/models"
	"penahub.gitlab.yandexcloud.net/backend/quiz/bitrix/internal/workers/limiter"
	"sync"
	"time"
)

type Bitrix struct {
	fiberClient       *fiber.Client
	logger            *zap.Logger
	redirectionURL    string
	integrationID     string
	integrationSecret string
	rateLimiter       *limiter.RateLimiter
	fileMutex         sync.Mutex
}

type BitrixDeps struct {
	FiberClient       *fiber.Client
	Logger            *zap.Logger
	RedirectionURL    string
	IntegrationID     string
	IntegrationSecret string
	RateLimiter       *limiter.RateLimiter
}

func NewBitrixClient(deps BitrixDeps) *Bitrix {
	if deps.FiberClient == nil {
		deps.FiberClient = fiber.AcquireClient()
	}
	return &Bitrix{
		fiberClient:       deps.FiberClient,
		logger:            deps.Logger,
		redirectionURL:    deps.RedirectionURL,
		integrationSecret: deps.IntegrationSecret,
		integrationID:     deps.IntegrationID,
		rateLimiter:       deps.RateLimiter,
	}
}

// https://dev.1c-bitrix.ru/rest_help/users/user_search.php
func (b *Bitrix) GetUserList(accesToken string, domain string) (*models.ResponseGetListUsers, error) {
	for {
		if b.rateLimiter.Check() {
			uri := fmt.Sprintf("https://%s/rest/user.search", domain)
			agent := b.fiberClient.Post(uri)
			agent.Set("Authorization", "Bearer "+accesToken)
			statusCode, resBody, errs := agent.Bytes()
			if len(errs) > 0 {
				for _, err := range errs {
					b.logger.Error("error sending request in GetUserList", zap.Error(err))
				}
				return nil, fmt.Errorf("request GetUserList failed: %v", errs[0])
			}

			if statusCode != fiber.StatusOK {
				errorMessage := fmt.Sprintf("error GetUserList statusCode - %d, respBody - %s", statusCode, string(resBody))
				b.logger.Error(errorMessage, zap.Int("status", statusCode))
				return nil, fmt.Errorf(errorMessage)
			}

			var userListResponse models.ResponseGetListUsers
			err := json.Unmarshal(resBody, &userListResponse)
			if err != nil {
				b.logger.Error("error unmarshal ResponseGetListUsers:", zap.Error(err))
				return nil, err
			}

			return &userListResponse, nil
		}
		time.Sleep(b.rateLimiter.Interval)
	}
}

// https://dev.1c-bitrix.ru/learning/course/index.php?COURSE_ID=99&LESSON_ID=2486
func (b *Bitrix) CreateWebHook(req models.WebHookRequest, domain string) (*models.CreateWebHookResp, error) {
	for {
		if b.rateLimiter.Check() {
			req.SetClientID(b.integrationID)
			req.SetClientSecret(b.integrationSecret)
			bodyBytes, err := json.Marshal(req)
			if err != nil {
				b.logger.Error("error marshal req in CreateWebHook:", zap.Error(err))
				return nil, err
			}
			agent := b.fiberClient.Get(fmt.Sprintf("https://%s/oauth/token/", domain))
			agent.Set("Content-Type", "application/json").Body(bodyBytes)

			statusCode, resBody, errs := agent.Bytes()
			if len(errs) > 0 {
				for _, err = range errs {
					b.logger.Error("error sending request in CreateWebHook for create or update tokens", zap.Error(err))
				}
				return nil, fmt.Errorf("request failed: %v", errs[0])
			}

			if statusCode != fiber.StatusOK {
				errorMessage := fmt.Sprintf("received an incorrect response from CreateWebHook: %s", string(resBody))
				b.logger.Error(errorMessage, zap.Int("status", statusCode))
				return nil, fmt.Errorf(errorMessage)
			}

			var tokens models.CreateWebHookResp
			err = json.Unmarshal(resBody, &tokens)
			if err != nil {
				b.logger.Error("error unmarshal CreateWebHookResp:", zap.Error(err))
				return nil, err
			}

			return &tokens, nil
		}
		time.Sleep(b.rateLimiter.Interval)
	}
}

// todo воронки и шаги надо понятиь что и как вообще обращаться ничо не понятно

// todo fieeeeelds
func (b *Bitrix) GetListFields(fieldType models.FieldsType, accessToken string, domain string) (interface{}, error) {
	for {
		if b.rateLimiter.Check() {
			switch fieldType {
			case models.FieldTypeCompany:
				fullURL := fmt.Sprintf("https://%s/rest/crm.deal.userfield.list", domain)
				agent := b.fiberClient.Post(fullURL)
				agent.Set("Authorization", "Bearer "+accessToken)
				statusCode, resBody, errs := agent.Bytes()
				if len(errs) > 0 {
					for _, err := range errs {
						b.logger.Error("error sending request in GetListFields", zap.Error(err))
					}
					return nil, fmt.Errorf("request GetListFields failed: %v", errs[0])
				}

				if statusCode != fiber.StatusOK {
					errorMessage := fmt.Sprintf("received an incorrect response from GetListFields: %s", string(resBody))
					b.logger.Error(errorMessage, zap.Int("status", statusCode))
					return nil, fmt.Errorf(errorMessage)
				}

				var listFields models.Company
				err := json.Unmarshal(resBody, &listFields)
				if err != nil {
					b.logger.Error("error unmarshal models.Company:", zap.Error(err))
					return nil, err
				}

				return string(resBody), nil

			case models.FieldTypeLeads:
				fullURL := fmt.Sprintf("https://%s/rest/crm.lead.fields", domain)
				agent := b.fiberClient.Post(fullURL)
				agent.Set("Authorization", "Bearer "+accessToken)
				statusCode, resBody, errs := agent.Bytes()
				if len(errs) > 0 {
					for _, err := range errs {
						b.logger.Error("error sending request in GetListFields", zap.Error(err))
					}
					return nil, fmt.Errorf("request GetListFields failed: %v", errs[0])
				}

				if statusCode != fiber.StatusOK {
					errorMessage := fmt.Sprintf("received an incorrect response from GetListFields: %s", string(resBody))
					b.logger.Error(errorMessage, zap.Int("status", statusCode))
					return nil, fmt.Errorf(errorMessage)
				}

				var listFields models.Lead
				err := json.Unmarshal(resBody, &listFields)
				if err != nil {
					b.logger.Error("error unmarshal models.Lead:", zap.Error(err))
					return nil, err
				}

				return listFields, nil

			case models.FieldTypeContact:
				fullURL := fmt.Sprintf("https://%s/rest/crm.contact.fields", domain)
				agent := b.fiberClient.Post(fullURL)
				agent.Set("Authorization", "Bearer "+accessToken)
				statusCode, resBody, errs := agent.Bytes()
				if len(errs) > 0 {
					for _, err := range errs {
						b.logger.Error("error sending request in GetListFields", zap.Error(err))
					}
					return nil, fmt.Errorf("request GetListFields failed: %v", errs[0])
				}

				if statusCode != fiber.StatusOK {
					errorMessage := fmt.Sprintf("received an incorrect response from GetListFields: %s", string(resBody))
					b.logger.Error(errorMessage, zap.Int("status", statusCode))
					return nil, fmt.Errorf(errorMessage)
				}

				var listFields models.Contact
				err := json.Unmarshal(resBody, &listFields)
				if err != nil {
					b.logger.Error("error unmarshal models.Contact:", zap.Error(err))
					return nil, err
				}

				return listFields, nil

			}
		}
		time.Sleep(b.rateLimiter.Interval)
	}
}