refresh_group_list=function() {
  grouplist=$('#group-choice')[0];
  $('a.group-choice').each(function(idx,a) {
    $(a).parent().remove();
  });

  if (groups.count()==0) {
    $(grouplist).prepend('<li><a class="group-choice">Aucune groupe</a></li>');
  }
  else { 
    groups.each(function(idx,group) {
      $(grouplist).prepend('<li><a class="group-choice">'+group.name+'</a></li>');
    });

    $('a.group-choice').each(function(idx,a) {
      $(a).bind('click',on_group_choice_click);
    });
  }
}


/****************
 * Add group
 ****************/

on_click_add_group_btn=function(e) {
  navbar_collapse_hide();
  $('#add_group_modal').modal('show');
}

on_show_add_group_modal=function(e) {
  $('#add_group_modal #add_group_name').focus();
}

on_valid_add_group_modal=function () {
  var name=$('#add_group_name')[0].value;
  if (name=='') {
    alert('Vous devez saisir un nom !');
    return;
  }
  if (groups[name]!==undefined) {
    alert('Ce groupe exite déjà !');
    return;
  }
  groups[name]=new Group(name);
  refresh_group_list();
  $('#add_group_modal').modal('hide');
  groups.save();
  view_group(groups[name]);
}

on_close_add_group_modal=function () {
  $('#add_group_modal form')[0].reset();
}

/****************
 * Nav bars
 ****************/
on_group_choice_click=function(e) {
  view_group(groups[$(e.target).html()]);
  navbar_collapse_hide();
}

navbar_collapse_hide=function() {
  if ($('#navbar-groupe-collapse').hasClass('in')) {
    $('#navbar-groupe-collapse').collapse('hide');
  }
}

/****************
 * Parts
 ****************/

view_part=function(part) {
  $('.part').each(function(idx,div) {
    $(div).css('display','none');
  });
  $(part).css('display','block');
}

view_home=function() {
  if (user) {
    $('#view-home #title').html('Bonjour '+user.name);
  }
  else {
    $('#view-home #title').html('Bonjour');
  }
  if (groups.count()>0) {
    tbody=$('#view-home #mybalances tbody');
    tbody.html('');
    balances=groups.balances();
    var sum=0;
    for (g in balances) {
      if (jQuery.type(balances[g]['balance'][user.name])!='undefined') {
        if (balances[g]['balance'][user.name]['diff']<0) {
          sum+=balances[g]['balance'][user.name]['diff'];
          diff='<td class="negative">'+balances[g]['balance'][user.name]['diff'].toFixed(2)+'</td>';
        }
        else {
          value=balances[g]['balance'][user.name]['total']-balances[g]['min'];
          sum+=value;
          diff='<td class="positive">+'+value.toFixed(2)+' €</td>';
        }
        tbody.html(tbody.html()+'<tr><td>'+g+'</td>'+diff+'</tr>');
      }
    }
    if (sum<0) {
      $('#view-home #mybalances #total-value').html('<span class="negative">'+sum.toFixed(2)+' €</span>');
    }
    else {
      $('#view-home #mybalances #total-value').html('<span class="positive">'+(sum==0?'':'+')+sum.toFixed(2)+' €</span>');
    }
    $('#view-home #mybalances').css('display','block');
  }
  else {
    $('#view-home #mybalances').css('display','none');
  }
  view_part('#view-home');
}

/****************
 * View group
 ****************/
view_group=function(group) {
  $('#view-group h1 span:first').html(group.name);
  $('#view-group #group_name')[0].value=group.name;
  set_contributors(group);
  on_contributor_change();
  view_part('#view-group');
}

set_contributors=function(group) {
  $('#view-group #contributor option').remove();
  if(group.contributors.length==0) {
    $('#view-group #contributor').append('<option>Aucun participant</option>');
  }
  else {
    $(group.contributors).each(function(idx,c) {
      $('#view-group #contributor').append('<option value="'+c.name+'">'+c.name+'</option>');
    });
  }
}

on_contributor_change=function(e) {
  show_contributions(groups[$('#view-group #group_name')[0].value],$('#view-group #contributor')[0].value);
}

show_contributions=function(group,contributor_name) {
  var tbody=$($('#view-group #contributions tbody')[0]);
  tbody.html('');
  total=$($('#view-group #total-value')[0]);
  contributions=group.contributionsByContributorName(contributor_name);
  if (contributions.length==0) {
    tbody.append('<tr><td colspan=3>Aucune contributions</td></tr>');
    total.html('0,00 €');
  }
  else {
    sum=0;
    for (idx in contributions) {
      col_actions='<td><div class="btn-group" data-id="'+contributions[idx].id+'"><button type="button" class="btn btn-default contribution_edit_btn"><span class="glyphicon glyphicon-edit"></span></button><button type="button" class="btn btn-default contribution_delete_btn"><span class="glyphicon glyphicon-trash"></span></button></div></td>';
      tbody.append('<tr><td>'+contributions[idx].getTitle()+'</td><td>'+contributions[idx].cost+' €</td>'+col_actions+'</tr>');
      sum+=contributions[idx].cost;
    }
    total.html(sum+' €');
  }
  
  $('.contribution_delete_btn').bind('click',on_contribution_delete_btn_click);
  $('.contribution_edit_btn').bind('click',on_contribution_edit_btn_click);
}

/******************************
 * Add/Edit/remove contributor
 ******************************/
on_click_add_contributor_btn=function() {
  $('#add_contributor_modal #group_name')[0].value=$('#view-group #group_name')[0].value;
  $($('#add_contributor_modal h4')[0]).html('Ajouter un participant');
  $($('#add_contributor_modal #add_contributor_submit')[0]).html('Ajouter');
  $('#view-group #edit_id')[0].value='-1';
  $('#add_contributor_modal').modal('show');
}

on_show_add_contributor_modal=function(e) {
  $('#add_contributor_modal #add_contributor_name').focus();
}

on_valid_add_contributor_modal=function() {
  var group=groups[$('#add_contributor_modal #group_name')[0].value];
  var name=$('#add_contributor_name')[0].value;
  edit_id=$('#view-group #edit_id')[0].value;
  if (name=='') {
    alert('Vous devez saisir un nom !');
    return;
  }
  duplicate=group.contributorByName(name);
  if (duplicate!=undefined && duplicate.id!=edit_id) {
    alert('Un contributor porte déjà ce nom !');
    return;
  }
  var email=$('#add_contributor_email')[0].value;
  if (email=='') {
    alert('Vous devez saisir un email !');
    return;
  }
  duplicate=group.contributorByEmail(email)
  if (duplicate!=undefined && duplicate.id!=edit_id) {
    alert('Un contributor utilise déjà cet email !');
    return;
  }
  if(edit_id=='-1') {
    group.addContributor(new Contributor(name,email));
  }
  else {
    group.replaceContributor(edit_id,new Contributor(name,email));
  }
  set_contributors(group);
  $('#add_contributor_modal').modal('hide');
  $('#add_contributor_name')[0].value='';
  $('#add_contributor_email')[0].value='';
  groups.save();
}

on_close_add_contributor_modal=function () {
  $('#add_contributor_name')[0].value='';
  $('#add_contributor_email')[0].value='';
}

on_edit_contributor_btn_click=function(e) {
  var group=groups[$('#view-group #group_name')[0].value];
  $('#add_contributor_modal #group_name')[0].value=group.name;
  contributor_name=$('#view-group #contributor')[0].value;
  contributor=group.contributorByName(contributor_name);
  $('#view-group #edit_id')[0].value=contributor.id;
  $('#add_contributor_modal #add_contributor_name')[0].value=contributor.name;
  $('#add_contributor_modal #add_contributor_email')[0].value=contributor.email;
  $($('#add_contributor_modal h4')[0]).html('Editer un participant');
  $($('#add_contributor_modal #add_contributor_submit')[0]).html('Valider');
  $('#add_contributor_modal').modal('show');
}

on_click_del_contributor_btn=function() {
  contributor=$('#view-group #contributor')[0].value;
  question='Voulez-vous vraiment supprimer '+contributor+' ?';
  myconfirm(question,on_confirm_del_contributor,null,contributor);
}

on_confirm_del_contributor=function(contributor) {
  var group=groups[$('#view-group #group_name')[0].value];
  group.removeContributor(contributor);
  set_contributors(group);
  groups.save();
}

/********************************
 * Add/edit/delete contribution
 ********************************/
on_show_add_contribution_modal=function(e) {
  var cs=$($('#add_contribution_modal #add_contribution_contributor_name')[0]);
  cs.html('');
  $('#view-group #contributor option').each(function(idx,option) {
    cs.append($(option).clone());
  });
  cs[0].value = $('#view-group #contributor')[0].value;
  $('#add_contribution_modal #add_contribution_title').focus();
}

on_click_add_contribution_btn=function() {
  $('#add_contribution_modal #group_name')[0].value=$('#view-group #group_name')[0].value;
  $('#add_contribution_modal #edit_id')[0].value='-1';
  $($('#add_contribution_modal h4')[0]).html('Ajouter une contribution');
  $($('#add_contribution_modal #add_contribution_submit')[0]).html('Ajouter');
  $('#add_contribution_modal').modal('show');
}

on_valid_add_contribution_modal=function(e) {
  e.preventDefault();
  var group=groups[$('#add_contribution_modal #group_name')[0].value];
  var contributor_name=$('#add_contribution_contributor_name')[0].value;
  var contributor=group.contributorByName(contributor_name);
  if (contributor==undefined) {
    alert('Participant inconu !');
    return;
  }
  var title=$('#add_contribution_title')[0].value;
  if (title=='') {
    $('#add_contribution_title')[0].focus();
    alert('Vous devez saisir un titre !');
    return;
  }
  var cost=$('#add_contribution_cost')[0].value;
  if (cost=='') {
    $('#add_contribution_cost')[0].focus();
    alert('Vous devez saisir un coût !');
    return;
  }
  else if(!RegExp('^[0-9]*((,|\.)[0-9]{1,2})*$').test(cost)) {
    $('#add_contribution_cost')[0].focus();
    alert('Coût incorrect !');
    return;
  }
  cost=parseFloat(cost.replace(',','.'));
  
  var date=$('#add_contribution_date')[0].value;
  if (date!='') {
    if(!RegExp('^[0-3][0-9]\/[0-1][0-9]\/[0-2][0-9][0-9][0-9]$').test(date)) {
      $('#add_contribution_date')[0].focus();
      alert('Date incorrect !');
      return;
    }
    date=moment(date,'DD-MM-YYYY').toDate();
    if (jQuery.type(date)!='date') {
      alert('Date non-reconnu !');
      return;
    }
  }
  else {
    date=new Date();
  }
  
  if($('#add_contribution_modal #edit_id')[0].value=='-1') {
    group.addContribution(new Contribution(contributor,cost,title,date));
  }
  else {
    contribution_id=$('#add_contribution_modal #edit_id')[0].value;
    group.replaceContribution(contribution_id,new Contribution(contributor,cost,title,date));
  }
  show_contributions(group,contributor_name);
  $('#add_contribution_modal').modal('hide');
  $('#add_contribution_modal form')[0].reset();
  groups.save();
}

on_close_add_contribution_modal=function () {
  $('#add_contribution_modal form')[0].reset();
}

on_contribution_delete_btn_click=function(e) {
  var group=groups[$('#view-group #group_name')[0].value];
  contribution_id=$($(e.target).parents('div')[0]).data('id');
  contribution=group.contributions[contribution_id];
  myconfirm('Etes-vous sûre de vouloir supprimer la participation '+contribution.getTitle()+' de '+contribution.contributor.name+' ?',on_confirm_contribution_delete,null,{'group':group,'contribution_id':contribution_id, 'contribution': contribution} );
}

on_confirm_contribution_delete=function(data) {
  delete data.group.contributions[data.contribution_id];
  groups.save();
  on_contributor_change();
}

on_contribution_edit_btn_click=function(e) {
  var group=groups[$('#view-group #group_name')[0].value];
  $('#add_contribution_modal #group_name')[0].value=$('#view-group #group_name')[0].value;
  $($('#add_contribution_modal h4')[0]).html('Editer une contribution');
  $($('#add_contribution_modal #add_contribution_submit')[0]).html('Valider');
  contribution_id=$($(e.target).parents('div')[0]).data('id');
  contribution=group.contributions[contribution_id];
  $('#add_contribution_modal #add_contribution_contributor_name')[0].value=contribution.contributor.name;
  $('#add_contribution_modal #add_contribution_title')[0].value=contribution.getTitle();
  $('#add_contribution_modal #add_contribution_cost')[0].value=contribution.cost;
  $('#add_contribution_modal #add_contribution_date')[0].value=moment(contribution.date).format('DD/MM/YYYY');
  $('#add_contribution_modal #edit_id')[0].value=contribution_id;
  $('#add_contribution_modal').modal('show');
}



/********************
 * Clear local data
 ********************/
clear_local_data=function() {
  navbar_collapse_hide();
  myconfirm('Etes-vous sûre de vouloir supprimer les données locales ?',on_confirm_clear_local_data);
}

on_confirm_clear_local_data=function(data) {
  localStorage.clear();
  location.reload();
}

/*********************
 * View balance
 *********************/

on_display_balance_btn_click=function(e) {
  group=groups[$('#view-group #group_name')[0].value];
  display_balance(group);
}

display_balance=function(group) {
  bal=group.balance();
  tbody=$($('#display_balance_modal tbody')[0]);
  tbody.html('');
  for (c in bal['balance']) {
    if(bal['balance'][c]['diff']<0) {
      diff='<td class="negative">'+bal['balance'][c]['diff'].toFixed(2)+' €</td>';
    }
    else {
      diff='<td><span class="glyphicon glyphicon-thumbs-up"></span></td>';
    }
    tbody.append('<tr><td>'+c+'</td><td>'+bal['balance'][c]['total']+' €</td>'+diff+'</tr>');
  }
  $('#display_balance_modal #total-value').html(bal.sum.toFixed(2)+' €');
  $('#display_balance_modal').modal('show');
}

/*********************
 * Remove group
 *********************/

on_remove_group_btn_click=function(e) {
  group=groups[$('#view-group #group_name')[0].value];
  myconfirm('Etes-vous sûre de vouloir supprimer le group '+group.name+' ?',on_confirm_remove_group,null,group);
}

on_confirm_remove_group=function(group) {
  if(groups.removeGroup(group.name)) {
    groups.save();
    location.reload();
  }
  else {
    alert('Erreur en supprimant le groupe '+group.name+' :(');
  }
}

/********************
 * Login
 ********************/
on_close_login_modal=function(e) {
  $('#login_modal form')[0].reset();
}

sync_server=false;
on_valid_login_modal=function(e) {
  email=$('#login_modal #login_email')[0].value;
  pass=$('#login_modal #login_pass')[0].value;
  server=$('#login_modal #login_server')[0].value;
  $('#login_modal').modal('hide');
  sync_server.login(server,email,pass,
    function(data) {
      localStorage.user=JSON.stringify({
        'name': data.name,
        'email': email,
        'password': pass,
        'server': server,
      });
      logged_menu();
    },
    function(data) {
      if (jQuery.type(data) != 'object' && data.loginerror) {
        alert(data.loginerror);
      }
      else {
        console.log(data);
        alert('Erreur durant la connexion au serveur');
      }
    }
  );
}



/********************
 * Sync
 ********************/
on_click_sync_btn=function(e) {
  if (user) {
    sync_server.sync(user.server, user.email, user.password, groups.export(),
      function(data) {
        console.log(data);
        if (data.groups) {
          groups.import(data.groups);
          groups.save();
          refresh_group_list();
          alert('Groupes synchronisés');
        }
        else {
          console.log(data);
          alert('Erreur durant la synchronisation :(');
        }
      },
      function(data) {
        console.log(data);
        alert('Impossible de contacter le serveur :(');
      }
    );
  }
  else {
    alert("Vous devez vous connecter pour commencer");
    $('#login_modal').modal('show');
  }
}

/*
 * User menu
 */
user=false;
logged_menu=function() {
  user=JSON.parse(localStorage.user);
  $('#user-name').html(user.name);
  $('#user-menu li').remove();
  menu=$('#user-menu');
  menu.html("<li><a id='myaccount_btn'>Mon compte</a></li>"+
  "<li><a id='sync_btn'>Synchroniser</a></li>" +
  "<li class='divider'></li>" +
  "<li><a id='logoff_btn'>Déconnexion</a></li>");
  $('#myaccount_btn').bind('click',on_click_myaccount_btn);
  $('#sync_btn').bind('click',on_click_sync_btn);
  $('#logoff_btn').bind('click',on_click_logoff_btn);
}

logged_out_menu=function() {
  user=false;
  $('#user-name').html('Connexion');
  $('#user-menu li').remove();
  menu=$('#user-menu');
  menu.html("<li><a id='login_btn'>Connexion</a></li>");
  $('#login_btn').bind('click',on_click_login_btn);
}

on_click_myaccount_btn=function() {
  $('#myaccount_modal #myaccount_email').html(user.email);
  $('#myaccount_modal #myaccount_name')[0].value=user.name;
  $('#myaccount_modal #myaccount_server').html(user.server);
  $('#myaccount_modal').modal('show');
}

on_click_login_btn=function() {
  $('#login_modal').modal('show');
}

on_click_logoff_btn=function() {
  delete localStorage.user;
  logged_out_menu();
}


/*********************
 * Activate
 *********************/
$( document ).ready( function() {
  if(typeof(Storage)!=="undefined"){
    groups=new GroupList();
    groups.loadFromLocalStorage();
    refresh_group_list();
    if (jQuery.type(localStorage.user)!='undefined') {
      logged_menu();
    }
    else {
      logged_out_menu();
    }
  }
  else {
    alert('Local storage not supported !');
    return;
  }
  sync_server=new SyncServer();

  $('#add_group_btn').bind('click',on_click_add_group_btn);
  $('#add_group_submit').bind('click',on_valid_add_group_modal);
  $("#add_group_modal").on('shown.bs.modal',on_show_add_group_modal);
  $("#add_group_modal").on('hidden.bs.modal',on_close_add_group_modal);
  $("#add_group_modal form").on('submit',on_valid_add_group_modal);

  $('#clear_local_data').bind('click',clear_local_data);

  $('#login_modal').on('hidden.bs.modal',on_close_login_modal);
  $('#login_modal #login_submit').bind('click',on_valid_login_modal);
  $('#login_modal form').bind('submit',on_valid_login_modal);

  $('#view-group #contributor').bind('change',on_contributor_change);

  $('#add_contributor_btn').bind('click',on_click_add_contributor_btn);
  $('#add_contributor_submit').bind('click',on_valid_add_contributor_modal);
  $("#add_contributor_modal").on('shown.bs.modal',on_show_add_contributor_modal);
  $("#add_contributor_modal").on('hidden.bs.modal',on_close_add_contributor_modal);
  $("#add_contributor_modal form").on('submit',on_valid_add_contributor_modal);

  $('#edit_contributor_btn').bind('click',on_edit_contributor_btn_click);
  $('#del_contributor_btn').bind('click',on_click_del_contributor_btn);

  $('#add_contribution_btn').bind('click',on_click_add_contribution_btn);
  $('#add_contribution_submit').bind('click',on_valid_add_contribution_modal);
  $("#add_contribution_modal").on('shown.bs.modal',on_show_add_contribution_modal);
  $("#add_contribution_modal").on('hidden.bs.modal',on_close_add_contribution_modal);
  $("#add_contribution_modal form").on('submit',on_valid_add_contribution_modal);

  $("#display_balance_btn").bind('click',on_display_balance_btn_click);

  $('#remove_group_btn').bind('click',on_remove_group_btn_click);
  view_home();
} );