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package com.clickntap.smart;

import java.io.File;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.apache.commons.io.FileUtils;
import org.springframework.context.NoSuchMessageException;

import com.clickntap.developers.MessageSource;
import com.clickntap.hub.AppSession;
import com.clickntap.utils.ConstUtils;

public class SmartTxtMessageSource extends SmartJsonMessageSource {

  private boolean isTxt;
  private MessageSource messageSource;

  public void start() throws Exception {
    isTxt = false;
    if (messageResource.getFile().getName().endsWith(".txt")) {
      isTxt = true;
      messageSource = new MessageSource();
    } else {
      super.start();
    }
  }

  public void loadLanguage(String language) throws Exception {
    File f = null;
    if ("en".equals(language)) {
      f = messageResource.getFile();
    } else {
      f = new File(messageResource.getFile().getAbsolutePath().replace(".txt", "_" + language + ".txt"));
    }
    List lines = FileUtils.readLines(f, ConstUtils.UTF_8);
    HashMap values = new HashMap();
    for (String line : lines) {
      try {
        int x = line.indexOf('=');
        String key = line.substring(0, x).trim();
        String value = line.substring(x + 1).trim();
        values.put(key, value);
      } catch (Exception e) {
      }
    }
    messageSource.getLanguages().put(language, values);
  }

  public String getMessage(String code, Object[] args, Locale locale) throws NoSuchMessageException {
    if (isTxt) {
      try {
        for (Object arg : args) {
          if (arg instanceof Map) {
            Object obj = ((Map) arg).get("ws");
            if (obj instanceof AppSession) {
              AppSession ws = (AppSession) obj;
              locale = new Locale(ws.getLocale());
            }
          }
        }
      } catch (Exception e) {
      }
      if (!messageSource.getLanguages().containsKey(locale.getLanguage())) {
        try {
          loadLanguage(locale.getLanguage());
        } catch (Exception e) {
          locale = new Locale("en");
          try {
            loadLanguage(locale.getLanguage());
          } catch (Exception e1) {
            return code;
          }
        }
      }
      try {
        if (code.contains("[")) {
          int x1 = 0;
          int x2 = 0;
          while ((x1 = code.indexOf("[")) > 0) {
            x2 = x1;
            while (code.charAt(x2) != ']' && x2 < code.length())
              x2++;
            code = code.substring(0, x1) + code.substring(x2 + 1);
          }
        }
        String value = (String) messageSource.getLanguages().get(locale.getLanguage()).get(code);
        if (args[0] instanceof SmartContext)
          return scriptEngine.evalScript((SmartContext) args[0], value);
        return value;
      } catch (Exception e) {
        return code;
      }
    } else {
      return super.getMessage(code, args, locale);
    }
  }
}