FreelanceBot

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package telegramBot.validation;
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import telegramBot.enums.Language;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import org.telegram.telegrambots.meta.api.objects.Update;
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import telegramBot.service.MessageService;
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import telegramBot.service.UserService;
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@Component
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public class CommandValidation {
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    @Autowired
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    private UserService userService;
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    private final MessageService messageService;
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    public CommandValidation(MessageService service){
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        this.messageService = service;
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    }
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    public boolean addCommand(Update update){
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        String chatId = update.getMessage().getChatId().toString();
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        String subsLanguage = update.getMessage().getText();
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        if(subsLanguage.isEmpty()){
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            this.messageService.sendResponse(chatId, ValidationMessage.EMPTY.getMessage());
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            return false;
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        }
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        if(!languageSupports(subsLanguage)){
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            this.messageService.sendResponse(chatId, ValidationMessage.NOT_SUPPORTS.getMessage());
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            return false;
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        }
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        if(subscriptionExist(subsLanguage, chatId)){
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            this.messageService.sendResponse(chatId, ValidationMessage.SUBSCRIPTION_EXIST.getMessage());
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            return false;
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        }
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        return true;
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    }
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    private boolean languageSupports(String language){
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        return Language.ignoreCaseValueOf(language) != Language.UNKNOWN;
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    }
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    private boolean subscriptionExist(String language, String chatId){
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        Language lang = Language.ignoreCaseValueOf(language);
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        return userService.getByChatId(chatId).getSubscriptions()
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                .stream()
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                .anyMatch(s -> s.getLanguage().equals(lang.getName()));
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    }
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    public boolean removeCommand(Update update) {
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        String chatId = update.getMessage().getChatId().toString();
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        String subLanguage = update.getMessage().getText();
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        if(subLanguage.isEmpty()){
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            this.messageService.sendResponse(chatId, ValidationMessage.EMPTY.getMessage());
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            return false;
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        }
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        if(!languageSupports(subLanguage)){
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            this.messageService.sendResponse(chatId, ValidationMessage.NOT_SUPPORTS.getMessage());
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            return false;
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        }
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        if(!subscriptionExist(subLanguage, chatId)){
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            this.messageService.sendResponse(chatId, ValidationMessage.SUBSCRIPTION_NOT_EXIST.getMessage());
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            return false;
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        }
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        return true;
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    }
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    public boolean latestCommand(Update update) {
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        String chatId = update.getMessage().getChatId().toString();
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        String input = update.getMessage().getText().replaceAll("(\\(\\))", "");
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        if(input.isEmpty()){
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            this.messageService.sendResponse(chatId, ValidationMessage.EMPTY.getMessage());
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            return false;
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        }
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        String[] inputs = input.split(",");
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        if(inputs.length == 1 || !languageSupports(inputs[0].trim())){
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            this.messageService.sendResponse(chatId, ValidationMessage.NOT_SUPPORTS.getMessage());
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            return false;
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        }
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        if(!subscriptionExist(inputs[0].trim(), chatId)){
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            this.messageService.sendResponse(chatId, ValidationMessage.SUBSCRIPTION_NOT_EXIST.getMessage());
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            return false;
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        }
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        return true;
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    }
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}
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