/
save.go
160 lines (136 loc) · 5.03 KB
/
save.go
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package handlers
import (
"errors"
"fmt"
tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
"github.com/kozalosev/SadFavBot/db/repo"
"github.com/kozalosev/SadFavBot/handlers/common"
"github.com/kozalosev/goSadTgBot/base"
"github.com/kozalosev/goSadTgBot/logconst"
"github.com/kozalosev/goSadTgBot/storage"
"github.com/kozalosev/goSadTgBot/wizard"
"github.com/loctools/go-l10n/loc"
log "github.com/sirupsen/logrus"
"strings"
)
const (
SaveFieldsTrPrefix = "commands.save.fields."
SaveStatusTrPrefix = "commands.save.status."
SaveStatusSuccess = SaveStatusTrPrefix + StatusSuccess
SaveStatusFailure = SaveStatusTrPrefix + StatusFailure
SaveStatusDuplicate = SaveStatusTrPrefix + StatusDuplicate
SaveStatusErrorForbiddenSymbolsInAlias = SaveFieldsTrPrefix + FieldAlias + FieldValidationErrorTrInfix + "forbidden.symbols"
MaxAliasLen = 128
MaxTextLen = 4096
ReservedSymbols = ReservedSymbolsForMessage + "\n"
ReservedSymbolsForMessage = "•@|{}[]:"
)
type SaveHandler struct {
base.CommandHandlerTrait
common.GroupCommandTrait
appenv *base.ApplicationEnv
stateStorage wizard.StateStorage
favService *repo.FavService
}
func NewSaveHandler(appenv *base.ApplicationEnv, stateStorage wizard.StateStorage) *SaveHandler {
h := &SaveHandler{
appenv: appenv,
stateStorage: stateStorage,
favService: repo.NewFavsService(appenv),
}
h.HandlerRefForTrait = h
return h
}
func (handler *SaveHandler) GetWizardEnv() *wizard.Env {
return wizard.NewEnv(handler.appenv, handler.stateStorage)
}
func (handler *SaveHandler) GetWizardDescriptor() *wizard.FormDescriptor {
desc := wizard.NewWizardDescriptor(handler.saveFormAction)
aliasDesc := desc.AddField(FieldAlias, SaveFieldsTrPrefix+FieldAlias)
aliasDesc.Validator = func(msg *tgbotapi.Message, lc *loc.Context) error {
if len([]rune(msg.Text)) > MaxAliasLen {
template := lc.Tr(SaveFieldsTrPrefix + FieldAlias + FieldMaxLengthErrorTrSuffix)
return errors.New(fmt.Sprintf(template, MaxAliasLen))
}
return verifyNoReservedSymbols(msg.Text, lc, SaveStatusErrorForbiddenSymbolsInAlias)
}
objDesc := desc.AddField(FieldObject, SaveFieldsTrPrefix+FieldObject)
objDesc.Validator = func(msg *tgbotapi.Message, lc *loc.Context) error {
if len([]rune(msg.Text)) > MaxTextLen {
template := lc.Tr(SaveFieldsTrPrefix + FieldObject + FieldMaxLengthErrorTrSuffix)
return errors.New(fmt.Sprintf(template, MaxTextLen))
}
return nil
}
return desc
}
func (*SaveHandler) GetCommands() []string {
return saveCommands
}
func (*SaveHandler) GetScopes() []base.CommandScope {
return common.CommandScopePrivateAndGroupChats
}
func (handler *SaveHandler) Handle(reqenv *base.RequestEnv, msg *tgbotapi.Message) {
wizardForm := wizard.NewWizard(handler, 2)
title := msg.CommandArguments()
if len(title) > 0 {
if err := verifyNoReservedSymbols(title, reqenv.Lang, SaveStatusErrorForbiddenSymbolsInAlias); err != nil {
handler.appenv.Bot.ReplyWithMarkdown(msg, err.Error())
wizardForm.AddEmptyField(FieldAlias, wizard.Text)
} else {
wizardForm.AddPrefilledField(FieldAlias, title)
}
} else {
wizardForm.AddEmptyField(FieldAlias, wizard.Text)
}
if msg.ReplyToMessage != nil {
wizardForm.AddPrefilledAutoField(FieldObject, msg.ReplyToMessage)
} else {
wizardForm.AddEmptyField(FieldObject, wizard.Auto)
}
// only short-handed forms of commands, running in one command without the use of wizards, are supported in group chats
if common.IsGroup(msg.Chat) && !wizardForm.AllRequiredFieldsFilled() {
return
}
wizardForm.ProcessNextField(reqenv, msg)
}
func (handler *SaveHandler) saveFormAction(reqenv *base.RequestEnv, msg *tgbotapi.Message, fields wizard.Fields) {
uid := msg.From.ID
alias, fav := common.ExtractFavInfo(fields)
replyWith := common.PossiblySelfDestroyingReplier(handler.appenv, reqenv, msg)
if len(alias) == 0 {
replyWith(SaveStatusFailure)
return
}
res, err := handler.favService.Save(uid, alias, fav)
if err != nil {
if storage.DuplicateConstraintViolation(err) {
replyWith(SaveStatusDuplicate)
} else {
log.WithField(logconst.FieldHandler, "SaveHandler").
WithField(logconst.FieldMethod, "saveFormAction").
WithField(logconst.FieldCalledObject, "FavService").
WithField(logconst.FieldCalledMethod, "Save").
Error(err)
replyWith(SaveStatusFailure)
}
} else {
if res.RowsAffected() > 0 {
answer := fmt.Sprintf(reqenv.Lang.Tr(SaveStatusSuccess), handler.appenv.Bot.GetName(), common.MarkdownEscaper.Replace(alias))
common.ReplyPossiblySelfDestroying(handler.appenv, msg, answer, base.MarkdownCustomizer)
} else {
log.WithField(logconst.FieldHandler, "SaveHandler").
WithField(logconst.FieldMethod, "saveFormAction").
Warning("No rows were affected!")
replyWith(SaveStatusFailure)
}
}
}
func verifyNoReservedSymbols(text string, lc *loc.Context, errTemplateName string) error {
if strings.ContainsAny(text, ReservedSymbols) {
template := lc.Tr(errTemplateName)
return errors.New(fmt.Sprintf(template, ReservedSymbolsForMessage))
} else {
return nil
}
}