/
chat.go
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/
chat.go
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package service
import (
"context"
"fmt"
"github.com/go-park-mail-ru/2022_1_CJ/internal/constants"
"github.com/go-park-mail-ru/2022_1_CJ/internal/db"
"github.com/go-park-mail-ru/2022_1_CJ/internal/model/convert"
"github.com/go-park-mail-ru/2022_1_CJ/internal/model/core"
"github.com/go-park-mail-ru/2022_1_CJ/internal/model/dto"
"github.com/go-park-mail-ru/2022_1_CJ/internal/utils"
"github.com/sirupsen/logrus"
)
type ChatService interface {
CreateChat(ctx context.Context, request *dto.CreateChatRequest) (*dto.CreateChatResponse, error)
GetDialogs(ctx context.Context, request *dto.GetDialogsRequest) (*dto.GetDialogsResponse, error)
GetDialog(ctx context.Context, request *dto.GetDialogRequest) (*dto.GetDialogResponse, error)
GetDialogByUserID(ctx context.Context, request *dto.GetDialogByUserIDRequest, currentUserID string) (*dto.GetDialogByUserIDResponse, error)
SendMessage(ctx context.Context, request *dto.SendMessageRequest) (*dto.SendMessageResponse, error)
ReadMessage(ctx context.Context, request *dto.ReadMessageRequest) (*dto.ReadMessageResponse, error)
CheckDialog(ctx context.Context, request *dto.CheckDialogRequest) error
}
type chatServiceImpl struct {
log *logrus.Entry
db *db.Repository
}
func (svc *chatServiceImpl) CreateChat(ctx context.Context, request *dto.CreateChatRequest) (*dto.CreateChatResponse, error) {
if len(request.AuthorIDs) == 1 {
if request.AuthorIDs[0] == request.UserID {
return nil, constants.ErrSingleChat
}
if err := svc.db.ChatRepo.IsUniqDialog(ctx, request.UserID, request.AuthorIDs[0]); err != nil {
return nil, err
}
}
dialog, err := svc.db.ChatRepo.CreateDialog(ctx, request.UserID, request.Name, request.AuthorIDs)
if err != nil {
return nil, fmt.Errorf("CreateDialog: %w", err)
}
if err := svc.db.UserRepo.AddDialog(ctx, dialog.ID, request.UserID); err != nil {
return nil, fmt.Errorf("AddDialog: %w", err)
}
for _, id := range request.AuthorIDs {
if id != request.UserID {
if err := svc.db.UserRepo.AddDialog(ctx, dialog.ID, id); err != nil {
return nil, fmt.Errorf("AddDialog: %w", err)
}
}
}
return &dto.CreateChatResponse{DialogID: dialog.ID}, nil
}
func (svc *chatServiceImpl) SendMessage(ctx context.Context, request *dto.SendMessageRequest) (*dto.SendMessageResponse, error) {
dialog, err := svc.db.ChatRepo.GetDialogByID(ctx, request.Message.DialogID)
if err != nil {
return nil, fmt.Errorf("GetDialogByID: %w", err)
}
var isRead []core.IsRead
for _, id := range dialog.Participants {
if id != request.Message.AuthorID {
isRead = append(isRead, core.IsRead{Participant: id, IsRead: false})
}
}
message := core.Message{
Body: request.Message.Body,
AuthorID: request.Message.AuthorID,
IsRead: isRead,
ID: request.Message.ID,
Attachments: request.Message.Attachments,
Images: request.Message.Images,
CreatedAt: request.Message.CreatedAt,
}
if err := svc.db.ChatRepo.SendMessage(ctx, message, request.Message.DialogID); err != nil {
return nil, fmt.Errorf("SendMessage: %w", err)
}
return &dto.SendMessageResponse{}, nil
}
func (svc *chatServiceImpl) ReadMessage(ctx context.Context, request *dto.ReadMessageRequest) (*dto.ReadMessageResponse, error) {
if err := svc.db.ChatRepo.IsChatExist(ctx, request.Message.DialogID); err != nil {
svc.log.Errorf("Chat not exist error: %s", err)
return nil, err
}
if err := svc.db.ChatRepo.ReadMessage(ctx, request.Message.AuthorID, request.Message.Body, request.Message.DialogID); err != nil {
svc.log.Errorf("SendMessage error: %s", err)
return nil, err
}
svc.log.Debug("Message was read successful")
return &dto.ReadMessageResponse{}, nil
}
func (svc *chatServiceImpl) GetDialogs(ctx context.Context, request *dto.GetDialogsRequest) (*dto.GetDialogsResponse, error) {
ids, err := svc.db.UserRepo.GetUserDialogs(ctx, request.UserID)
if err != nil {
svc.log.Errorf("GetUserDialogs error: %s", err)
return nil, err
}
ids, total, page := utils.GetLimitArray(&ids, request.Limit, request.Page)
var dialogs []dto.Dialog
for _, id := range ids {
dInf, err := svc.db.ChatRepo.GetDialogByID(ctx, id)
if err != nil {
svc.log.Errorf("GetDialogInfo error: %s", err)
}
dialogs = append(dialogs, convert.Dialog2DTO(dInf, request.UserID))
}
for i, dialog := range dialogs {
if len(dialog.Participants) == 1 {
participant, err := svc.db.UserRepo.GetUserByID(ctx, dialog.Participants[0])
if err != nil {
return nil, err
}
dialogs[i].Name = participant.Name.Full()
dialogs[i].Image = participant.Image
}
}
return &dto.GetDialogsResponse{Dialogs: dialogs, Total: total, AmountPages: page}, err
}
func (svc *chatServiceImpl) GetDialogByUserID(ctx context.Context, request *dto.GetDialogByUserIDRequest, currentUserID string) (*dto.GetDialogByUserIDResponse, error) {
dialogID, err := svc.db.ChatRepo.IsDialogExist(ctx, request.UserID, currentUserID)
if err != nil {
svc.log.Errorf("IsDialogExist error: %s", err)
return nil, err
}
return &dto.GetDialogByUserIDResponse{DialogID: dialogID}, nil
}
func (svc *chatServiceImpl) CheckDialog(ctx context.Context, request *dto.CheckDialogRequest) error {
dialog, err := svc.db.ChatRepo.GetDialogByID(ctx, request.DialogID)
if err != nil {
svc.log.Errorf("GetDialogInfo error: %s", err)
return err
}
err = svc.db.UserRepo.UserCheckDialog(ctx, dialog.ID, request.UserID)
if err != nil {
svc.log.Errorf("Don't found in db")
return constants.ErrDBNotFound
}
return nil
}
func (svc *chatServiceImpl) GetDialog(ctx context.Context, request *dto.GetDialogRequest) (*dto.GetDialogResponse, error) {
err := svc.db.UserRepo.UserCheckDialog(ctx, request.DialogID, request.UserID)
if err != nil {
return nil, constants.ErrDBNotFound
}
dialogCore, err := svc.db.ChatRepo.GetDialogByID(ctx, request.DialogID)
if err != nil {
return nil, err
}
var total int64
var page int64
dialogCore.Messages, total, page = utils.GetLimitMessage(&dialogCore.Messages, request.Limit, request.Page)
dialog := convert.Dialog2DTO(dialogCore, request.UserID)
if len(dialog.Participants) == 1 {
participant, err := svc.db.UserRepo.GetUserByID(ctx, dialog.Participants[0])
if err != nil {
return nil, err
}
dialog.Name = participant.Name.Full()
dialog.Image = participant.Image
}
return &dto.GetDialogResponse{Dialog: dialog, Messages: convert.Messages2DTO(dialogCore.Messages, request.UserID), Total: total, AmountPages: page}, err
}
func NewChatService(log *logrus.Entry, db *db.Repository) ChatService {
return &chatServiceImpl{log: log, db: db}
}