src/com/ranfa/lib/Easter.java

   1 package com.ranfa.lib;
   2
   3 import java.io.IOException;
   4 import java.nio.file.Files;
   5 import java.nio.file.Paths;
   6 import java.text.SimpleDateFormat;
   7 import java.util.Date;
   8 import java.util.HashMap;
   9 import java.util.List;
  10 import java.util.Map;
  11 import java.util.stream.Collectors;
  12
  13 import org.jsoup.Jsoup;
  14 import org.jsoup.nodes.Document;
  15 import org.jsoup.select.Elements;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 import com.fasterxml.jackson.core.type.TypeReference;
  20 import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
  21 import com.fasterxml.jackson.databind.ObjectMapper;
  22 import com.fasterxml.jackson.databind.ObjectWriter;
  23
  24 public class Easter {
  25
  26         private final Date TODAY;
  27         private final String dATE_FORMAT_STRING = "M月d日";
  28         private final String BIRTH_DATA_URL = "generated/easter.json";
  29         private final String WEBURL = "https://imas.gamedbs.jp/cg/idol/birthday";
  30
  31         private Logger logger = LoggerFactory.getLogger(Easter.class);
  32         private Map<String, String> BirthData = this.fetchBirthData();
  33
  34         public Easter() {
  35                 if(Files.notExists(Paths.get(this.BIRTH_DATA_URL))) {
  36                         this.writeBirthData(this.BirthData);
  37                 }
  38                 this.logger.info("LeT's mAkE ThIs aPp FuNnY...");
  39                 this.TODAY = new Date();
  40         }
  41
  42         public Map<String, String> readBirthData() {
  43                 Map<String, String> res = null;
  44                 try {
  45                         res = new ObjectMapper().readValue(Paths.get(this.BIRTH_DATA_URL).toFile(), new TypeReference<Map<String, String>>() {});
  46                 } catch (IOException e) {
  47                         this.logger.warn("Error while reading database from local.", e);
  48                 }
  49                 return res;
  50         }
  51
  52         public void writeBirthData(Map<String, String> data) {
  53                 ObjectWriter writer = new ObjectMapper().writer(new DefaultPrettyPrinter());
  54                 try {
  55                         writer.writeValue(Paths.get(this.BIRTH_DATA_URL).toFile(), data);
  56                 } catch (IOException e) {
  57                         this.logger.error("Error while writing to database for easter.", e);
  58                 }
  59         }
  60
  61         public Map<String, String> fetchBirthData() {
  62                 Map<String, String> res = new HashMap<>();
  63                 try {
  64                         Document document = Jsoup.connect(this.WEBURL)
  65                                         .userAgent("java/DelesteRandomSelector More information is available at https;//github.com/hizumiaoba/DelesteRandomSelector/")
  66                                         .maxBodySize(0)
  67                                         .timeout(0)
  68                                         .get();
  69                         Elements elements = document.getElementsByClass("font0");
  70                         elements.stream()
  71                         .forEachOrdered(element -> {
  72                                 String[] data = element.text().split(" ");
  73                                 res.put(data[1], data[0]);
  74                         });
  75                         if(elements.size() != res.size()) {
  76                                 throw new IllegalArgumentException(new IOException());
  77                         }
  78                 } catch (IOException e) {
  79                         this.logger.error("Error while fetching data for easter. this is not good...", e);
  80                 }
  81                 return res;
  82         }
  83
  84         public String getTodaysBirth() {
  85                 Map<String, String> birthData = this.readBirthData();
  86                 SimpleDateFormat format = new SimpleDateFormat(this.dATE_FORMAT_STRING);
  87                 String todayDateString = format.format(this.TODAY);
  88                 List<String> res =  birthData.entrySet().stream()
  89                                 .filter((e) -> e.getValue().equals(todayDateString))
  90                                 .map(e -> e.getKey())
  91                                 .collect(Collectors.toList());
  92                 StringBuilder builder = new StringBuilder("Happy Birth Day! : ");
  93                 for(String element : res) {
  94                         builder.append(element);
  95                 }
  96                 return res.isEmpty() ? "" : builder.toString();
  97         }
  98
  99 }