function SCaseList() {
  lastChange=0;

  this.importExampleData=function() {
    var exampleData={
      'Vacances': {
        'Papier': {
          'color': '#f00',
          'things': ['Papier blanc', 'Stylo', "Carte d'identité"]
        },
        'Multimédia' : {
          'color': '#0f0',
          'things': ['Montre', 'Chargeur montre', "PC portable"]
        }
      }
    };
    for (scaseName in exampleData) {
      var scase=this.newSCase(scaseName);
      for (catName in exampleData[scaseName]) {
        var cat=scase.cats.newCat(catName);
        for (idx in exampleData[scaseName][catName].things) {
          cat.newThing(exampleData[scaseName][catName].things[idx]);
        }
      }
    }
  }

  this.loadFromLocalStorage=function() {
    if (jQuery.type(localStorage.scases)!='undefined') {
      try {
        var data=JSON.parse(localStorage.scases);
        this.lastChange=data.lastChange;
        for (el in data.scases) {
          this[el]=new SCase(false,false,data.scases[el]);
        }
      }
      catch(e) {
        for (el in this) {
          if (this.isSCase(this[el])) {
            delete this[el];
          }
        }
        myconfirm('Erreur en chargeant les données locales. On les purges ?',
          function(data) {
            delete localStorage.scases;
            location.reload();
          }
        );
      }
    }
    else {
      myconfirm("<h2>Bienvenu !</h2><p>Souhaitez-vous charger les données d'exemple ?</p>",
        function(scases) {
          scases.importExampleData();
          scases.save();
          show_scases();
        },
        false,
        this
      );
    }
  }

  this.export=function() {
    return {
      'lastChange': this.lastChange,
      'scases': this.each(function(idx,scase) {
        return scase.export();
      })
    };
  }

  this.import=function(data) {
    ret={};
    for (el in this) {
      if (this.isSCase(this[el])) {
        delete ret[el];
      }
    }
    this.lastChange=data.lastChange;
    for (el in data.scases) {
      this[el]=new SCase(false,false,data.scases[el]);
    }
    return true;
  }

  this.save=function() {
    localStorage.scases=JSON.stringify(this.export());
  }

  this.each=function(fct) {
    var idx=0;
    var ret={};
    for (el in this) {
      if(this.isSCase(this[el])) {
        ret[el]=fct(idx++,this[el]);
      }
    }
    return ret;
  }

  this.count=function() {
    len=0;
    this.each(function(idx,scase) {
      len=len+1;
    });
    return len;
  }

  this.isSCase=function(el) {
    return (jQuery.type(el)=='object' && jQuery.type(el.isSCase)=='function' && el.isSCase());
  }

  this.byName=function(name) {
    for (el in this) {
      if(this.isSCase(this[el])) {
        if (this[el].name==name) {
          return this[el];
        }
      }
    }
    return false;
  }

  this.removeSCase=function(name) {
    for (el in this) {
      if (this.isSCase(this[el]) && this[el].name==name) {
        this[el].remove();
        return true;
      }
    }
    return false;
  }

  this.newSCase=function(name) {
    if (this.byName(this[name])) {
      var scase=this.byName(name);
      if (scase.removed) {
        scase.restore();
        return true;
      }

    }
    else {
      var uuid=uuid||generate_uuid();
      this[uuid]=new SCase(uuid,name);
      return this[uuid];
    }
    return false;
  }

  this.renameSCase=function(name,newname) {
    var scase=this.byName(name);
    if (scase && !this.byName(newname)) {
      scase.name=newname;
      scase.lastChange=new Date().getTime();
      return scase;
    }
    return false;
  }

  this.copySCase=function(name,newname) {
    var orig_scase=this.byName(name);
    if (this.isSCase(orig_scase) && !this.byName(newname)) {
      var uuid=uuid||generate_uuid();
      this[uuid]=new SCase(false,false,orig_scase.export());
      this[uuid].uuid=uuid;
      this[uuid].lastChange=new Date().getTime();
      this[uuid].name=newname;
      return this[uuid];
    }
    return false;
  }

  this.resetSCase=function(name) {
    for (el in this) {
      if (this.isSCase(this[el]) && this[el].name==name) {
        return this[el].reset();
      }
    }
    return false;
  }
}

function SCase(uuid,name,data) {
  this.uuid=uuid||generate_uuid();
  this.name=name;
  this.cats=new CatList();
  this.lastChange=new Date().getTime();
  this.removed=false;

  this.isSCase=function() {
    return true;
  }

  this.import=function(data) {
    this.uuid=data.uuid || generate_uuid();
    this.lastChange=data.lastChange || new Date().getTime();
    this.name=decodeURIComponent(data.name);
    this.removed=data.removed||false;
    if (jQuery.type(data.cats) == 'object') {
      this.cats=new CatList(data.cats);
    }
    return true;
  }

  this.export=function() {
    return {
      'uuid': this.uuid,
      'lastChange': this.lastChange,
      'name': encodeURIComponent(this.name),
      'removed': this.removed,
      'cats': this.cats.export()
    };
  }

  this.byName=function(name) {
    for (idx in this.cats) {
      if (name==this.cats[idx].name) {
        return this.cats[idx];
      }
    }
    return false;
  }

  this.stats=function() {
    var cats=0;
    var things=0;
    var things_done=0;
    this.cats.each(function(cidx,cat) {
      cats++;
      for (idx in cat.things) {
        things++;
        if (cat.things[idx].checked) {
          things_done++;
        }
      }
    });
    return {
      'cats': cats,
      'things': things,
      'done': things_done
    }
  }

  this.reset=function() {
    this.cats.each(function(idx,cat) {
      for (idx in cat.things) {
        if (cat.things[idx].checked) {
          cat.things[idx].checked=false;
        }
      }
    });
    this.lastChange=new Date().getTime();
    return true;
  }

  this.remove=function() {
    this.removed=true;
    this.lastChange=new Date().getTime();
  }

  this.restore=function() {
    this.removed=false;
    this.lastChange=new Date().getTime();
  }

  /*
   * Contructor
   */
  if (jQuery.type(data)=='object') {
    try {
      this.import(data);
    }
    catch (e) {
      console.log(e);
      alert('Une erreur est survenue en chargeant la valise '+this.name+' depuis le cache');
    }
  }

}


function CatList(data) {
  this.export=function() {
    return this.each(function(idx,cat) {
      return cat.export();
    });
  }

  this.import=function(data) {
    for (el in this) {
      if (this.isCat(this[el])) {
        delete this[el];
      }
    }
    for (el in data) {
      this[el]=new Cat(el,false,false,data[el]);
    }
    return true;
  }

  this.each=function(fct) {
    var idx=0;
    var ret={};
    for (el in this) {
      if(this.isCat(this[el])) {
        ret[el]=fct(idx++,this[el]);
      }
    }
    return ret;
  }

  this.count=function() {
    len=0;
    this.each(function(idx,cat) {
      len=len+1;
    });
    return len;
  }

  this.isCat=function(el) {
    return (jQuery.type(el)=='object' && jQuery.type(el.isCat)=='function' && el.isCat());
  }

  this.byName=function(name) {
    for (el in this) {
      if(this.isCat(this[el])) {
        if (this[el].name==name) {
          return this[el];
        }
      }
    }
    return false;
  }

  this.newCat=function(name) {
    if (this.byName(name)) {
      var cat=this.byName(name);
      if (cat.removed) {
        cat.restore();
        return true;
      }
    }
    else {
      var uuid=uuid||generate_uuid();
      this[uuid]=new Cat(uuid,name);
      return this[uuid];
    }
    return false;
  }

  this.renameCat=function(name,newname) {
    var cat=this.byName(name);
    if (cat && !this.byName(newname)) {
      cat.name=newname;
      cat.lastChange=new Date().getTime();
      return cat;
    }
    return false;
  }

  this.removeCat=function(name) {
    for (el in this) {
      if (this.isCat(this[el]) && this[el].name==name) {
        this[el].remove();
        return true;
      }
    }
    return false;
  }

  this.restoreCat=function(name) {
    for (el in this) {
      if (this.isCat(this[el]) && this[el].name==name && this[el].removed) {
        this[el].restore();
        return true;
      }
    }
    return false;
  }


  /*
   * Contructor
   */
  if (jQuery.type(data)=='object') {
    try {
      this.import(data);
    }
    catch (e) {
      console.log(e);
      alert('Une erreur est survenue en chargeant la liste de catégorie depuis le cache');
    }
  }

}

function Cat(uuid,name,color,data) {
  this.uuid=generate_uuid();
  this.lastChange=new Date().getTime();
  this.name=name;
  this.color=color || '#'+(0x1000000+(Math.random())*0xffffff).toString(16).substr(1,6);
  this.things={};
  this.removed=false;

  this.isCat=function() {
    return true;
  }

  this.import=function(data) {
    this.uuid=data.uuid || generate_uuid();
    this.lastChange=data.lastChange||new Date().getTime();
    this.name=decodeURIComponent(data.name);
    this.color=data.color;
    this.removed=data.removed||false;
    if (jQuery.type(data.things) == 'object') {
      for (tuuid in data.things) {
        this.things[tuuid]=new Thing(tuuid);
        this.things[tuuid].import(data.things[tuuid]);
      }
    }
    return true;
  }

  this.export=function() {
    var things={};
    for (tuuid in this.things) {
      things[tuuid]=this.things[tuuid].export();
    }
    return {
      'uuid': this.uuid,
      'lastChange': this.lastChange,
      'name': encodeURIComponent(this.name),
      'color': this.color,
      'removed': this.removed,
      'things': things
    };
  }

  this.byLabel=function(label) {
    for (idx in this.things) {
      if (label==this.things[idx].label) {
        return this.things[idx];
      }
    }
    return false;
  }

  this.count=function() {
    return keys(this.things).length;
  }

  this.stats=function() {
    var count=0;
    var done=0;
    for (idx in this.things) {
      if (this.things[idx].checked) {
        done+=1;
      }
      count+=1;
    }
    return {
      'things': count,
      'done': done
    };
  }

  this.newThing=function(label) {
    if (this.byLabel(label)) {
      var thing=this.byLabel(label);
      if (thing.removed) {
        thing.restore();
        thing.setChecked(false);
        return true;
      }
    }
    else {
      var uuid=generate_uuid();
      this.things[uuid]=new Thing(uuid,label);
      return true;
    }
    return false;
  }

  this.renameThing=function(label,newlabel) {
    var thing=this.byLabel(label);
    if (thing && !this.byLabel(newlabel)) {
      thing.label=newlabel;
      thing.lastChange=new Date().getTime();
      return thing;
    }
    return false;
  }

  this.removeThing=function(label) {
    for (idx in this.things) {
      if (this.things[idx].label==label) {
        this.things[idx].remove();
        return true;
      }
    }
    return false;
  }

  this.restoreThing=function(label) {
    for (idx in this.things) {
      if (this.things[idx].label==label && this.things[idx].removed) {
        this.things[idx].restore();
        return true;
      }
    }
    return false;
  }

  this.remove=function() {
    this.removed=true;
    this.lastChange=new Date().getTime();
  }

  this.restore=function() {
    this.removed=false;
    this.lastChange=new Date().getTime();
  }


  /*
   * Contructor
   */
  if (jQuery.type(data)=='object') {
    try {
      this.import(data);
    }
    catch (e) {
      console.log(e);
      alert('Une erreur est survenue en chargeant la catégorie catégorie '+this.name+' depuis le cache');
    }
  }

}

function Thing(uuid,label,checked) {
  this.uuid=uuid||generate_uuid();
  this.lastChange=new Date().getTime();
  this.label=label;
  this.checked=checked;
  this.removed=false;

  this.import=function(data) {
    this.uuid=data.uuid||generate_uuid();
    this.lastChange=data.lastChange||new Date().getTime();
    this.label=decodeURIComponent(data.label),
    this.checked=data.checked;
    this.removed=data.removed||false;
  }

  this.export=function() {
    return {
      'uuid': this.uuid,
      'lastChange': this.lastChange,
      'label': encodeURIComponent(this.label),
      'checked': this.checked,
      'removed': this.removed,
    };
  }

  this.setChecked=function(value) {
    this.checked=value;
    this.lastChange=new Date().getTime();
  }

  this.remove=function() {
    this.removed=true;
    this.lastChange=new Date().getTime();
  }

  this.restore=function() {
    this.removed=false;
    this.lastChange=new Date().getTime();
  }
}