From d027b57c66dcdb183683c34101518df1572c1bf8 Mon Sep 17 00:00:00 2001
From: ulrich
Date: Mon, 12 Apr 2021 16:53:30 +0000
Subject: [PATCH] Livestreams erste Fassung fertig

---
 src/de/uhilger/mediaz/api/ListHandler.java |   74 +++++++++++++++++++++++++++++++++++-
 1 files changed, 71 insertions(+), 3 deletions(-)

diff --git a/src/de/uhilger/mediaz/api/ListHandler.java b/src/de/uhilger/mediaz/api/ListHandler.java
index d851478..be42315 100644
--- a/src/de/uhilger/mediaz/api/ListHandler.java
+++ b/src/de/uhilger/mediaz/api/ListHandler.java
@@ -17,8 +17,16 @@
  */
 package de.uhilger.mediaz.api;
 
+import com.google.gson.Gson;
 import com.sun.net.httpserver.HttpExchange;
+import de.uhilger.mediaz.App;
+import de.uhilger.mediaz.Server;
+import de.uhilger.mediaz.entity.Abspielliste;
+import de.uhilger.mediaz.entity.Entity;
+import de.uhilger.mediaz.entity.Titel;
+import de.uhilger.mediaz.store.FileStorage;
 import java.io.IOException;
+import java.util.logging.Logger;
 
 /**
  * Der ListHandler bearbeitet HTTP-Anfragen zu Abspiellisten
@@ -27,20 +35,62 @@
  * PUT /mz/api/alist/[pl-name]          den Titel im Body anfuegen an die Liste [pl-name]
  * PUT /mz/api/alist/[pl-name]/[nr]     an der Position nr der Liste [pl-name] den Titel im Body einfuegen
  * DELETE /mz/api/alist/[pl-name]/[nr]  den Titel an der Position [nr] aus der Liste [pl-name] entfernen  
+ * DELETE /mz/api/alist/[pl-name]/alle  alle Titel aus der Liste [pl-name] entfernen  
  *
  * @author Ulrich Hilger
  * @version 1, 8.4.2021
  */
 public class ListHandler extends AbstractHandler {
+  
+  private static final Logger logger = Logger.getLogger(ListHandler.class.getName());
+  
+  public static final String ALLE_TITEL = "alle";
+
 
   @Override
   protected String get(HttpExchange e) {
-    throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    String path = e.getRequestURI().toString();
+    String[] elems = path.split(Server.SLASH);
+    String plname = elems[elems.length - 1];
+    FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF)));
+    String json = fs.readJson(FileStorage.ST_ABSPIELLISTE, plname);
+    return embedInCustomType(json, FileStorage.ST_ABSPIELLISTE);
   }
 
   @Override
   protected String put(HttpExchange e) throws IOException {
-    throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    String path = e.getRequestURI().toString();
+    String[] elems = path.split(Server.SLASH);
+    String response = "ListHandler.put: ungueltiger URL";
+    switch(elems.length) {
+      case 5: // ohne nr am Ende
+        response = addTitel(e, elems[4]);
+        break;
+        
+      case 6:
+        response = "Einfuegen noch nicht fertig.";
+        break;
+    }
+    return response;
+  }
+  
+  private String addTitel(HttpExchange e, String plname) throws IOException {
+    FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF)));
+    Entity entity = fs.read(FileStorage.ST_ABSPIELLISTE, plname);
+    String response = "Titel konnte nicht hinzugefuegt werden.";
+    if(entity instanceof Abspielliste) {
+      Abspielliste aliste = (Abspielliste) entity;
+      String titelJson = bodyLesen(e);
+      Gson gson = new Gson();
+      Object o = gson.fromJson(titelJson, fs.typeFromName(Titel.class.getSimpleName()).getType());
+      if(o instanceof Titel) {
+        Titel titel = (Titel) o;
+        aliste.addTitel(titel);
+        fs.write(aliste, true);
+        response = "Titel " + titel.getName() + " der Liste " + aliste.getName() + " hinzugefuegt.";
+      }
+    }
+    return response;
   }
 
   @Override
@@ -48,9 +98,27 @@
     throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
   }
 
+  // DELETE /mz/api/alist/[pl-name]/[nr]  den Titel an der Position [nr] aus der Liste [pl-name] entfernen  
   @Override
   protected boolean delete(HttpExchange e) {
-    throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    String path = e.getRequestURI().toString();
+    String[] elems = path.split(Server.SLASH);
+    String listName = elems[elems.length - 2];
+    FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF)));
+    Entity entity = fs.read(Abspielliste.class.getSimpleName(), listName);
+    if(entity instanceof Abspielliste) {
+      Abspielliste liste = (Abspielliste) entity;
+      String titelStr = elems[elems.length-1];
+      if(titelStr.equalsIgnoreCase(ALLE_TITEL)) {
+        liste.getTitel().clear();
+      } else {
+        liste.getTitel().remove(Integer.parseInt(elems[elems.length-1]));
+      }
+      fs.write(liste, true);
+      return true;
+    } else {
+      return false;
+    }
   }
   
 }

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