package amoClients

import (
	"amocrm/models/amo"
	"encoding/json"
	"fmt"
	"net/url"

	"github.com/gofiber/fiber/v2"
	"go.uber.org/zap"
)

type Amo struct {
	urlUserList      string
	urlCreateWebHook string
	urlDeleteWebHook string
	baseApiURL       string
	fiberClient      *fiber.Client
	logger           *zap.Logger
}

type AmoDeps struct {
	UrlUserList      string
	UrlCreateWebHook string
	UrlDeleteWebHook string
	BaseApiURL       string
	FiberClient      *fiber.Client
	Logger           *zap.Logger
}

func NewAmoClient(deps AmoDeps) *Amo {
	if deps.FiberClient == nil {
		deps.FiberClient = fiber.AcquireClient()
	}
	return &Amo{
		urlUserList:      deps.UrlUserList,
		urlCreateWebHook: deps.UrlCreateWebHook,
		urlDeleteWebHook: deps.UrlDeleteWebHook,
		baseApiURL:       deps.BaseApiURL,
		fiberClient:      deps.FiberClient,
		logger:           deps.Logger,
	}
}

// todo тут наверное ко всем этим методам токен авторизации нужно прикладывать прочитать подробнее про это

// https://www.amocrm.ru/developers/content/crm_platform/users-api#users-list
func (a *Amo) GetUserList(req amo.RequestGetListUsers) (*amo.ResponseGetListUsers, error) {
	uri := fmt.Sprintf("%s?page=%d&limit=%d&with=%s", a.urlUserList, req.Page, req.Limit, req.With)

	agent := a.fiberClient.Get(uri)

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

	if statusCode != fiber.StatusOK {
		switch statusCode {
		case fiber.StatusForbidden:
			errorMessage := fmt.Sprintf("error GetUserList StatusForbidden - %d", statusCode)
			a.logger.Error(errorMessage, zap.Int("status", statusCode))
			return nil, fmt.Errorf(errorMessage)
		case fiber.StatusUnauthorized:
			errorMessage := fmt.Sprintf("error GetUserList StatusUnauthorized - %d", statusCode)
			a.logger.Error(errorMessage, zap.Int("status", statusCode))
			return nil, fmt.Errorf(errorMessage)
		default:
			errorMessage := fmt.Sprintf("error GetUserList statusCode - %d", statusCode)
			a.logger.Error(errorMessage, zap.Int("status", statusCode))
			return nil, fmt.Errorf(errorMessage)
		}
	}

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

	return &userListResponse, nil
}

// https://www.amocrm.ru/developers/content/oauth/step-by-step
// POST /oauth2/access_token
// тут и создание по коду и обновление по рефрешу в этом клиенте
func (a *Amo) CreateWebHook(req amo.WebHookRequest) (*amo.CreateWebHookResp, error) {
	bodyBytes, err := json.Marshal(req)
	if err != nil {
		a.logger.Error("error marshal req in CreateWebHook:", zap.Error(err))
		return nil, err
	}

	agent := a.fiberClient.Post(a.urlCreateWebHook)
	agent.Set("Content-Type", "application/json").Body(bodyBytes)

	statusCode, resBody, errs := agent.Bytes()
	if len(errs) > 0 {
		for _, err = range errs {
			a.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: %d", statusCode)
		a.logger.Error(errorMessage, zap.Int("status", statusCode))
		return nil, fmt.Errorf(errorMessage)
	}

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

	return &tokens, nil
}

// https://www.amocrm.ru/developers/content/oauth/step-by-step#%D0%A5%D1%83%D0%BA-%D0%BE%D0%B1-%D0%BE%D1%82%D0%BA%D0%BB%D1%8E%D1%87%D0%B5%D0%BD%D0%B8%D0%B8-%D0%B8%D0%BD%D1%82%D0%B5%D0%B3%D1%80%D0%B0%D1%86%D0%B8%D0%B8
func (a *Amo) DeleteWebHook() {

}

// https://www.amocrm.ru/developers/content/crm_platform/leads_pipelines#%D0%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA-%D1%81%D1%82%D0%B0%D1%82%D1%83%D1%81%D0%BE%D0%B2-%D0%B2%D0%BE%D1%80%D0%BE%D0%BD%D0%BA%D0%B8-%D1%81%D0%B4%D0%B5%D0%BB%D0%BE%D0%BA
// GET /api/v4/leads/pipelines/{pipeline_id}/statuses
func (a *Amo) GetListSteps(pipelineID int) (*amo.ResponseGetListSteps, error) {
	uri := fmt.Sprintf("%s/api/v4/leads/pipelines/%d/statuses", a.baseApiURL, pipelineID)

	agent := a.fiberClient.Get(uri)
	statusCode, resBody, errs := agent.Bytes()
	if len(errs) > 0 {
		for _, err := range errs {
			a.logger.Error("error sending request in GetListSteps", zap.Error(err))
		}
		return nil, fmt.Errorf("request GetListSteps failed: %v", errs[0])
	}

	if statusCode != fiber.StatusOK {
		errorMessage := fmt.Sprintf("received an incorrect response from GetListSteps: %d", statusCode)
		a.logger.Error(errorMessage, zap.Int("status", statusCode))
		return nil, fmt.Errorf(errorMessage)
	}

	var listSteps amo.ResponseGetListSteps
	err := json.Unmarshal(resBody, &listSteps)
	if err != nil {
		a.logger.Error("error unmarshal ResponseGetListSteps:", zap.Error(err))
		return nil, err
	}

	return &listSteps, nil
}

// https://www.amocrm.ru/developers/content/crm_platform/custom-fields#%D0%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA-%D0%BF%D0%BE%D0%BB%D0%B5%D0%B9-%D1%81%D1%83%D1%89%D0%BD%D0%BE%D1%81%D1%82%D0%B8
// GET /api/v4/leads/custom_fields
// GET /api/v4/contacts/custom_fields
// GET /api/v4/companies/custom_fields
// GET /api/v4/customers/custom_fields
// GET /api/v4/customers/segments/custom_fields
// GET /api/v4/catalogs/{catalog_id}/custom_fields
// эти методы все относятся к одному и тому же, поэтому на вход будет урл и рек стуктура, выход у них один и тот же
func (a *Amo) GetListFields(req amo.GetListFieldsReq, url string) (*amo.ResponseGetListFields, error) {
	fullURL := fmt.Sprintf("%s?limit=%d&page=%d", url, req.Limit, req.Page)
	agent := a.fiberClient.Get(fullURL)

	statusCode, resBody, errs := agent.Bytes()
	if len(errs) > 0 {
		for _, err := range errs {
			a.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: %d", statusCode)
		a.logger.Error(errorMessage, zap.Int("status", statusCode))
		return nil, fmt.Errorf(errorMessage)
	}

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

	return &listFields, nil
}

// https://www.amocrm.ru/developers/content/crm_platform/tags-api#%D0%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA-%D1%82%D0%B5%D0%B3%D0%BE%D0%B2-%D0%B4%D0%BB%D1%8F-%D1%81%D1%83%D1%89%D0%BD%D0%BE%D1%81%D1%82%D0%B8
// GET /api/v4/{entity_type:leads|contacts|companies|customers}/tags
func (a *Amo) GetListTags(req amo.GetListTagsReq) (*amo.ResponseGetListTags, error) {
	fullURL := fmt.Sprintf("%s/%s/tags?", a.baseApiURL, req.EntityType)

	if req.Filter.Name != "" {
		fullURL += "&filter[name]=" + url.QueryEscape(req.Filter.Name)
	}
	if len(req.Filter.ID) > 0 {
		for _, id := range req.Filter.ID {
			fullURL += fmt.Sprintf("&filter[id][]=%d", id)
		}
	}
	if req.Filter.Query != "" {
		fullURL += "&filter[query]=" + url.QueryEscape(req.Filter.Query)
	}

	fullURL += fmt.Sprintf("&page=%d&limit=%d", req.Page, req.Limit)

	agent := a.fiberClient.Get(fullURL)
	statusCode, resBody, errs := agent.Bytes()
	if len(errs) > 0 {
		for _, err := range errs {
			a.logger.Error("error sending request in GetListTags", zap.Error(err))
		}
		return nil, fmt.Errorf("request GetListTags failed: %v", errs[0])
	}

	if statusCode != fiber.StatusOK {
		errorMessage := fmt.Sprintf("received an incorrect response from GetListTags: %d", statusCode)
		a.logger.Error(errorMessage, zap.Int("status", statusCode))
		return nil, fmt.Errorf(errorMessage)
	}

	var listTags amo.ResponseGetListTags
	err := json.Unmarshal(resBody, &listTags)
	if err != nil {
		a.logger.Error("error unmarshal ResponseGetListTags:", zap.Error(err))
		return nil, err
	}

	return &listTags, nil
}