feat: implemented the way to acquire events in a Go structured way.

.gitignore

@@ -1,3 +1,4 @@
 *.exe
 *.exe~
 .env
+secret.json

amocrm.go

@@ -7,6 +7,7 @@ import (
 	"vultras.su/core/amo/contacts"
 	"vultras.su/core/amo/leads"
 	"vultras.su/core/amo/users"
+	"vultras.su/core/amo/events"
 )
 
 type IAmoClient interface {
@@ -28,15 +29,15 @@ type Client struct {
 
 type OauthTokenResponse = api.OauthTokenResponse
 
-func NewAmoClient(options *Options ) (*Client, *TokenPair, error) {
-	apiClient, pair, err := api.NewClient(options)
+func NewAmoClient(secretPath string) (*Client, error) {
+	apiClient, err := api.NewApi(secretPath)
 	if err != nil {
-		return nil, nil, err
+		return nil, err
 	}
 
 	return &Client{
 		Api: apiClient,
-	}, pair, nil
+	}, nil
 }
 
 func (client *Client) updateEntity(url string, id int, body interface{}) error {
@@ -68,7 +69,7 @@ func (client *Client) UpdateLead(lead *leads.Lead) error {
 func (client *Client) GetCompany(companyId string, query string) (*companies.Company, error) {
 	deal := new(companies.Company)
 	resource := fmt.Sprintf("/api/v4/companies/%s", companyId)
-	if len(query) != 0 {
+	if query != "" {
 		resource = resource + "?" + query
 	}
 
@@ -76,6 +77,37 @@ func (client *Client) GetCompany(companyId string, query string) (*companies.Com
 	return deal, err
 }
 
+// Returns the events from AmoCRM by specified request.
+// If there are no such events returns an empty slice of events.
+func (client *Client) GetEvents(req events.EventsRequest) ([]events.Event, error) {
+	res := "/api/v4/events"
+	format := req.Format()
+	if format != "" {
+		res += "?" + format
+	}
+
+	var abs bool
+	ret := []events.Event{}
+	for {
+		resp := events.EventsResponse{}
+		err := client.Api.Get(res, &resp, abs)
+		if err != nil {
+			if err == api.NoContentErr {
+				return ret, nil
+			}
+			return nil, err
+		}
+		ret = append(ret, resp.Embedded.Events...)
+		if resp.Links.Next.Href == "" {
+			break
+		}
+		abs = true
+		res = resp.Links.Next.Href
+	}
+
+	return ret, nil
+}
+
 func (client *Client) UpdateCompany(company *companies.Company) error {
 	return client.updateEntity("/api/v4/companies", company.Id, company)
 }

api/api.go

@@ -8,6 +8,9 @@ import (
 	"io/ioutil"
 	"net/http"
 	"net/url"
+	"io"
+	"os"
+	"time"
 )
 
 const (
@@ -17,27 +20,31 @@ const (
 )
 
 type ClientOptions struct {
-	Url          string
-	RedirectUrl  string
+	Url          string `json:"url"`
+	RedirectUrl  string `json:"redirect_url"`
 
-	AuthCode string
+	AuthCode string `json:"auth_code"`
 
-	ClientId     string
-	ClientSecret string
+	ClientId     string `json:"client_id"`
+	ClientSecret string `json:"client_secret"`
 
-	AccessToken  string
-	RefreshToken string
+	AccessToken  string `json:"access_token"`
+	ExpirationDate time.Time `json:"access"`
+	RefreshToken string `json:"refresh_token"`
 }
 
 type Client struct {
 	options *ClientOptions
 	BaseUrl *url.URL
+	secretStoreFilePath string
+	Debug bool `json`
 }
 
 type requestOptions struct {
 	HttpMethod string
 	Body       interface{}
 	Headers    map[string]string
+	Abs  bool
 }
 
 type OauthTokenResponse struct {
@@ -51,42 +58,114 @@ type TokenPair struct {
 	Access, Refresh string
 }
 
-func NewClient(options *ClientOptions) (*Client, *TokenPair, error) {
-	if options.Url == "" {
-		return nil, nil, errors.New("AmoCrm: Invalid options: Url")
+func NewApi(secretPath string) (*Client, error) {
+	ret := &Client{
+		secretStoreFilePath: secretPath,
+	}
+	options, err := ret.readSecret()
+	if err != nil {
+		return nil, err
+	}
+
+	if options.Url == "" || options.RedirectUrl == "" {
+		return nil, errors.New("AmoCrm: Invalid options: Url")
 	}
 	resolvedUrl, err := url.Parse(options.Url)
 	if err != nil {
-		return nil, nil, err
+		return nil, err
 	}
 
-	ret := &Client{
-		options: options,
-	}
 	ret.BaseUrl = resolvedUrl
 
-	var pair *TokenPair
-	if options.AccessToken == "" || options.RefreshToken == "" {
-		pair, err = ret.ExchangeAuth()
 	if err != nil {
-			return nil, nil, err
+		return nil, err
 	}
+	ret.options = options
+
+	var (
+		//pair *TokenPair
+		exchangeErr error
+		exchanged bool
+	)
+	if ret.options.AccessToken == "" || ret.options.RefreshToken == "" {
+		if ret.options.ClientSecret == "" ||
+				ret.options.ClientId == "" ||
+				ret.options.AuthCode == "" {
+					return nil, errors.New("AmoCrm: invalid options: ExchangeAuth")
+		}
+		_, exchangeErr = ret.ExchangeAuth()
+		exchanged = true
 	}
 
+	if !exchanged || exchangeErr != nil {
+		// Refreshing token before the work.
+		// Should think of how often should refresh
+		// the token. (see the ExpiresIn)
+		_, err = ret.RefreshToken()
+		if err != nil {
+			return nil, err
+		}
+	}
 
 	return &Client{
 		options: options,
 		BaseUrl: resolvedUrl,
-	}, pair, nil
+	}, nil
+}
+
+func (api *Client) readSecret() (*ClientOptions, error) {
+	f, err := os.Open(api.secretStoreFilePath)
+	if err != nil {
+		return nil, err
+	}
+
+	bts, err := io.ReadAll(f)
+	if err != nil {
+		return nil, err
+	}
+
+
+	ret := ClientOptions{}
+	err = json.Unmarshal(bts, &ret)
+	if err != nil {
+		return nil, err
+	}
+
+	return &ret, nil
+}
+
+func (api *Client) writeSecret() error {
+	bts, err := json.MarshalIndent(api.options, "", "\t")
+	if err != nil {
+		return err
+	}
+
+	err = os.WriteFile(api.secretStoreFilePath, bts, 0644)
+	if err != nil {
+		return err
+	}
+	return err
 }
 
 func (api *Client) doRequest(resourceUrl string, requestParams requestOptions, result interface{}) error {
+	var (
+		requestUrl *url.URL
+		err error
+	)
+
+	if !requestParams.Abs {
 		resolvedUrl, err := url.Parse(resourceUrl)
 		if err != nil {
 			return err
 		}
 
-	requestUrl := api.BaseUrl.ResolveReference(resolvedUrl)
+		requestUrl = api.BaseUrl.ResolveReference(resolvedUrl)
+	} else {
+		requestUrl, err = url.Parse(resourceUrl)
+		if err != nil {
+			return err
+		}
+	}
 
 	requestBody := new(bytes.Buffer)
 	if requestParams.Body != nil {
@@ -108,6 +187,9 @@ func (api *Client) doRequest(resourceUrl string, requestParams requestOptions, r
 	}
 
 	response, err := http.DefaultClient.Do(request)
+	if api.Debug {
+		fmt.Printf("\nAmo request: %+v\nAmo repsonse: %+v\n", request, response)
+	}
 	if err != nil {
 		return errors.New(fmt.Sprintf(
 			"Request error: %s %d %s %s",
@@ -118,8 +200,23 @@ func (api *Client) doRequest(resourceUrl string, requestParams requestOptions, r
 		))
 	}
 	defer response.Body.Close()
+	if response.StatusCode == 204 {
+		return NoContentErr
+	}
 
 	if response.StatusCode >= 400 {
+		/*if response.StatusCode == 401 {
+			_, err := api.RefreshToken()
+			if err != nil {
+				return err
+			}
+			return api.doRequest(
+				resourceUrl,
+				requestParams,
+				result,
+			)
+		}*/
+
 		bodyBytes, _ := ioutil.ReadAll(response.Body)
 		return errors.New(fmt.Sprintf(
 			"%s %d %s %s",
@@ -168,6 +265,10 @@ func (api *Client) ExchangeAuth() (*TokenPair, error) {
 
 	api.options.AccessToken = result.AccessToken
 	api.options.RefreshToken = result.RefreshToken
+	err = api.writeSecret()
+	if err != nil {
+		return nil, err
+	}
 	return ret, nil
 }
 
@@ -178,7 +279,7 @@ func (api *Client) RefreshToken() (*OauthTokenResponse, error) {
 		"client_secret": api.options.ClientSecret,
 		"grant_type":    "refresh_token",
 		"refresh_token": api.options.RefreshToken,
-		"redirect_uri":  api.options.Url,
+		"redirect_uri":  api.options.RedirectUrl,
 	}
 
 	err := api.doRequest("/oauth2/access_token", requestOptions{
@@ -186,15 +287,30 @@ func (api *Client) RefreshToken() (*OauthTokenResponse, error) {
 		Body:       request,
 		Headers:    getHeaders(""),
 	}, result)
+	if err != nil {
+		return nil, err
+	}
 
-	return result, err
+	api.options.AccessToken = result.AccessToken
+	api.options.RefreshToken = result.RefreshToken
+	err = api.writeSecret()
+	if err != nil {
+		return nil, err
+	}
+
+	return result, nil
 }
 
-func (api *Client) Get(resource string, result interface{}) error {
+func (api *Client) Get(resource string, result interface{}, abs ...bool) error {
+	var a bool
+	if len(abs) > 0 {
+		a = abs[0]
+	} 
 	return api.doRequest(resource, requestOptions{
 		HttpMethod: http.MethodGet,
 		Body:       nil,
 		Headers:    getHeaders(api.options.AccessToken),
+		Abs: a,
 	}, result)
 }
 

api/errors.go

@@ -0,0 +1,9 @@
+package api
+
+import (
+	"errors"
+)
+
+var (
+	NoContentErr = errors.New("no content")
+)

cmd/test/main.go

@@ -2,13 +2,16 @@ package main
 
 import (
 	"vultras.su/core/amo"
+	"vultras.su/core/amo/api"
 	"vultras.su/core/amo/webhooks"
+	"vultras.su/core/amo/events"
 	"vultras.su/core/bond"
 	"vultras.su/core/bond/statuses"
-	"os"
+	//"os"
 	"fmt"
 	"io"
 	"encoding/json"
+	"time"
 )
 
 type Context = bond.Context
@@ -54,36 +57,46 @@ Def(
 ))
 
 func main() {
-
-	opts := &amo.Options{
-		Url: os.Getenv("AMO_URL"),
-		RedirectUrl: os.Getenv("AMO_REDIRECT_URL"),
-		AccessToken: os.Getenv("AMO_ACCESS"),
-		RefreshToken: os.Getenv("AMO_REFRESH"),
-		ClientSecret: os.Getenv("AMO_CLIENT_SECRET"),
-		ClientId: os.Getenv("AMO_CLIENT_ID"),
-		AuthCode: os.Getenv("AMO_AUTH_CODE"),
-	}
-	fmt.Println(opts)
-	client, pair, err := amo.NewAmoClient(opts)
+	//fmt.Println(opts)
+	client, err := amo.NewAmoClient("secret.json")
 	if err != nil {
 		panic(err)
 	}
+	client.Api.Debug = true
 	gclient = client
-	if pair != nil {
-		fmt.Println("PAIR: %q", pair)
-	}
 
-	/*company, err := client.GetCompany("80699047", "")
-	if err != nil {
+	company, err := client.GetCompany("80828925", "")
+	if err != nil && err != api.NoContentErr {
 		panic(err)
-	}*/
-	srv := bond.Server{
-		Addr: ":15080",
-		Handler: root,
 	}
-	err = srv.ListenAndServe()
+	fmt.Printf("company: %+v\n", company)
+	interval := time.Second * 10
+
+	now := time.Now()
+	lastChanged := now
+	for {
+		time.Sleep(interval)
+		req := events.EventsRequest{}
+		req.Limit = 10
+		req.Filter.Entity = []string{"company", "contact"}
+		req.Filter.Type = events.CustomFieldValueChanged(
+			2192301,
+			2678095,
+		)
+		req.With = []string{"company_name"}
+		req.Filter.CreatedAt.From = lastChanged
+		events, err := client.GetEvents(req)
 		if err != nil {
-		panic(err)
+			fmt.Printf("Error: %s", err)
+			continue
+		}
+		if len(events) == 0 {
+			fmt.Printf("nothing changed")
+			continue
+		}
+		lastChanged = time.Now()
+		for i, event := range events {
+			fmt.Printf("event %d: %v\n", i, event)
+		}
 	}
 }

events/custom-field.go

@@ -0,0 +1,25 @@
+package events
+
+import (
+	"fmt"
+)
+
+type Value struct {
+	CustomFieldValue *CustomFieldValue `json:"custom_field_value,omitempty"`
+}
+
+type CustomFieldValue struct {
+	EnumId int `json:"enum_id,omitempty"`
+	FieldId int `json:"field_id"`
+	FieldType int `json:"field_type"`
+	Text string `json:"text"`
+}
+
+func CustomFieldValueChanged(ids ...int64) []string {
+	ret := make([]string, len(ids))
+	for i, id := range ids {
+		ret[i] = fmt.Sprintf("custom_field_%d_value_changed", id)
+	}
+	return ret
+}
+

events/event.go

@@ -0,0 +1,43 @@
+package events
+
+import (
+	"encoding/json"
+)
+
+type EventsResponse struct {
+	Page int `json:"_page"`
+	Links struct {
+		Self struct {
+			Href string `json:"href"`
+		} `json:"self"`
+		Next struct {
+			Href string `json:"href"`
+		} `json:"next"`
+	} `json:"_links"`
+
+	Embedded struct{
+		Events []Event `json:"events"`
+	} `json:"_embedded"`
+}
+
+//type Events []Event
+
+type Event struct {
+	Id string `json:"id"`
+	Type string `json:"type"`
+	EntityId int `json:"entity_id"`
+	EntityType string `json:"entity_type"`
+	CreatedBy int64 `json:"created_by"`
+	CreatedAt int64 `json:"created_at"`
+	ValueAfter []Value `json:"value_after"`
+	ValueBefore []Value `json:"value_before,omitempty"`
+	AccountId int `json:"account_id"`
+	Embedded struct {
+	} `json:"_embedded"`
+}
+
+func (e Event) String() string {
+	bts, _ := json.MarshalIndent(e, "", "\t")
+	return string(bts)
+}
+

events/main.go

@@ -0,0 +1,61 @@
+package events
+
+import (
+	"time"
+	"strings"
+	"fmt"
+)
+
+type EventsRequest struct {
+	Filter struct {
+		CreatedAt struct {
+			From, To time.Time
+		}
+		Type []string
+		Entity []string
+	}
+	Page, Limit uint
+	Ids, CreatedBy []int
+	With []string
+}
+
+func (req EventsRequest) Format() string {
+	opts := []string{}
+
+	if len(req.With) > 0 {
+		buf := fmt.Sprintf("with=%s", req.With[0])
+		for _, with := range req.With[1:] {
+			buf += ","+with
+		}
+		opts = append(opts, buf)
+	}
+	if req.Page > 0 {
+		opts = append(opts, fmt.Sprintf("page=%d", req.Page))
+	}
+	if req.Limit > 0 {
+		opts = append(opts, fmt.Sprintf("limit=%d", req.Limit))
+	}
+	if !req.Filter.CreatedAt.From.IsZero() && req.Filter.CreatedAt.To.IsZero() {
+		opts = append(opts, fmt.Sprintf("filter[created_at]=%d",
+			req.Filter.CreatedAt.From.Unix(),
+		))
+	} else if !req.Filter.CreatedAt.From.IsZero() && !req.Filter.CreatedAt.To.IsZero() {
+		opts = append(
+			opts,
+			fmt.Sprintf("filter[created_at][from]=%d", req.Filter.CreatedAt.From.Unix()),
+			fmt.Sprintf("filter[created_at][to]=%d", req.Filter.CreatedAt.To.Unix()),
+		)
+	}
+
+	for i, typ := range req.Filter.Type {
+		opts = append(opts, fmt.Sprintf("filter[type][%d]=%s", i, typ))
+	}
+
+	for i, ent := range req.Filter.Entity {
+		opts = append(opts, fmt.Sprintf("filter[entity][%d]=%s", i, ent))
+	}
+
+	ret := strings.Join(opts, "&")
+	return ret
+}
+

go.mod

@@ -4,7 +4,7 @@ go 1.21.3
 
 require (
 	github.com/stretchr/testify v1.6.1
-	vultras.su/core/bond v0.0.0-20240114204709-a9c2c8810682
+	vultras.su/core/bond v0.0.0-20240118183558-6fa4ef4cf402
 )
 
 require (

go.sum

@@ -11,3 +11,5 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 vultras.su/core/bond v0.0.0-20240114204709-a9c2c8810682 h1:NiT5kAwzjTO+C4/y2EyRI6N8DOl5YFLuyZEUqrYwfFE=
 vultras.su/core/bond v0.0.0-20240114204709-a9c2c8810682/go.mod h1:d8O5wwQlZrVAeoV7qIwxXabB9RuqgopP7wEyRl3++Tc=
+vultras.su/core/bond v0.0.0-20240118183558-6fa4ef4cf402 h1:XUEdQesLiMX8mK2ZQpJyfE0p+MfmgnOdM1Mt72F+FW4=
+vultras.su/core/bond v0.0.0-20240118183558-6fa4ef4cf402/go.mod h1:d8O5wwQlZrVAeoV7qIwxXabB9RuqgopP7wEyRl3++Tc=

webhooks/handler.go

@@ -0,0 +1,2 @@
+package webhooks
+