//LocalLike Objekt erstellen

let localLikes = {}



$(document).ready(function(){


  // submit kommentar nicht seite neu laden

    $("#kommentarform").submit(function(e) {
        console.log("Submitted")
        e.preventDefault(); // avoid to execute the actual submit of the form.
    });




  //LocalStorage erstellen oder auslesen

  if(localStorage.getItem('localLikes')){
    //likes auslesen

    localLikes = JSON.parse(localStorage.getItem('localLikes'))

    console.log("Stored local Likes:")
    console.log(localLikes)

  }else{

    //LocalLikes leer

    localLikes = {
      ideen: [],
      kommentare: []
    }

    console.log("New Local Likes created")
    console.log(localLikes)

    localStorage.setItem('localLikes',JSON.stringify(localLikes));

  }


  


})


function openOverlay(){

  $("#overlay").removeClass("hidden").addClass("show")

  $("#cancel").click(function() {
    document.getElementById("idee").innerHTML = "";
    $("#overlay").removeClass("show").addClass("hidden")
    
  })
}





//LocalStorage Anpassen (Likes hinzufügen oder entfernen)


function chageLocalStorrage(typ, id, addRemove){

  if(typ =="idee"){

    if(addRemove == "add" && !localLikes.ideen.includes(id)){
      localLikes.ideen.push(id);
      console.log("like added");
      console.log(localLikes);
    }else if(addRemove == "remove" && localLikes.ideen.includes(id)){
      let index = localLikes.ideen.indexOf(id);
      localLikes.ideen.splice(index, 1);
      console.log("like removed");
      console.log(localLikes);
    }

  }else if(typ == "kommentar"){

    if(addRemove == "add"){
      localLikes.kommentare.push(id);
    }else if(addRemove == "remove"){
      let index = localLikes.kommentare.indexOf(id);
      localLikes.kommentare.splice(index, 1);
    }


  }

  localStorage.setItem('localLikes',JSON.stringify(localLikes));

}



// IDEE ANZEIGEN



function ideeAnzeigen(data) {

  document.getElementById("idee").innerHTML = "";
  document.querySelectorAll('.loeschen').forEach(e => e.remove());
  let titelErstellen = document.createElement("h1");
  let titelInhalt = document.createTextNode(data.titel);
  titelErstellen.appendChild(titelInhalt);
  titelErstellen.classList.add("loeschen");
  document.getElementById('idee').appendChild(titelErstellen);

  let inhaltErstellen = document.createElement("p");
  let inhaltInhalt = document.createTextNode(data.inhalt);
  inhaltErstellen.appendChild(inhaltInhalt);
  inhaltErstellen.classList.add("loeschen");
  document.getElementById('idee').appendChild(inhaltErstellen);

  let likesErstellen = document.createElement("p");
  let likes = document.createTextNode(data.likes + " Likes");
  likesErstellen.appendChild(likes);
  likesErstellen.classList.add("likeDisplay");
  document.getElementById('idee').appendChild(likesErstellen);

  if(data.bild != null){
    let bildContainer = $("<div>").addClass("ImgContainer");
    let imgUrlArr = JSON.parse(data.bild);
    for (let i = 0; i < imgUrlArr.length; i++) {
      let img = $("<img>").addClass("previewImage");
      img.attr("src", imgUrlArr[i]);
      img.appendTo(bildContainer);
      
    }
  
    bildContainer.prependTo($("#idee"))
  }

 

  /*
  let bild = document.createElement("img");
  bild.src = data.bild;
  bild.classList.add("ideeBilder");
  bild.classList.add("loeschen");
  document.getElementById('idee').appendChild(bild);
  console.log(data);

  */


  let ideeLike = document.createElement("img");
  ideeLike.classList.add("herz");


  //check if user has liked Idea before,load proper image and set class

  if(localLikes.ideen.includes(data.id)){
    ideeLike.src= "../images/herz-1.png";
    ideeLike.classList.add("liked");
  }else{
    ideeLike.src= "../images/herz-0.png";
    ideeLike.classList.add("unliked");
  }

  document.getElementById('idee').appendChild(ideeLike);



  ideeLike.addEventListener('click', function() {

    if(localLikes.ideen.includes(data.id)){
      ideeLike.src= "../images/herz-0.png";
      ideeLike.classList.add("unliked");
      ideeLike.classList.remove("liked");
      removeLike("idee", data.id)
    }else{

      ideeLike.src= "../images/herz-1.png";
      ideeLike.classList.add("liked");
      ideeLike.classList.remove("unliked");
      addLike("idee", data.id)
    }


  });

  kommentarErstellen(data.id);

  let kommentare_container = document.createElement("div")
  kommentare_container.setAttribute("id", "kommentare_container");
  document.getElementById('idee').appendChild(kommentare_container);



  kommentareAnzeigen(data.id);


};




//Like Hinzufügen

function addLike(typ, id, element){



  if(typ == "idee"){

      //increment likes in DB
    $.post('system/addLike.php/?typ=idee&id=' + id, {}).done(function(response){


        //neue Likes anzeigen

        $("p.likeDisplay").html(response + " Likes")

    });

    //add like in LocalStorage
    chageLocalStorrage("idee", id, "add")




  }else if(typ == "kommentar"){
    $.post('system/addLike.php/?typ=kommentar&id=' + id, {}).done(function(response){


      element.prev().html(response + " Likes")


    });

  //add like in LocalStorage
    chageLocalStorrage("kommentar", id, "add")
  }

}

function removeLike(typ, id, element){

  //decrement likes in DB

  if(typ == "idee"){
    $.post('system/removeLike.php/?typ=idee&id=' + id, {}).done(function(response){


      $("p.likeDisplay").html(response + " Likes")


    });

    chageLocalStorrage("idee", id, "remove")

  }else if(typ == "kommentar"){
    $.post('system/removeLike.php/?typ=kommentar&id=' + id, {}).done(function(response){


      element.prev().html(response + " Likes")


    });

    chageLocalStorrage("kommentar", id, "remove")

  }


}





//  kommentar formular likesErstellen

function kommentarErstellen(idee_id) {
  console.log(idee_id);


  let formular = document.createElement("form");
  formular.classList.add("formular");
  formular.setAttribute("action", "../system/kommentarSpeichern.php");
  formular.setAttribute("method", "post");
  formular.setAttribute("id", "kommentarform");
  document.getElementById("idee").appendChild(formular);

  let text_label = document.createElement("label");
  text_label.setAttribute("for", "text");

  let text_input = document.createElement("input");
  text_input.setAttribute("type", "text");
  text_input.setAttribute("name", "text")

  let submit_input = document.createElement("input");
  submit_input.setAttribute("type", "submit");
  submit_input.setAttribute("value", "Kommentar posten");

  let id = document.createElement("input");
  id.setAttribute("type", "hidden");
  id.setAttribute("name", "idee_id")
  id.value = idee_id;

  document.getElementById("kommentarform").appendChild(text_label);
  document.getElementById("kommentarform").appendChild(text_input);
  document.getElementById("kommentarform").appendChild(submit_input);
  document.getElementById("kommentarform").appendChild(id);

  $("#kommentarform").submit(function(e){

    let form = $(this);

    $.ajax({
      type: "POST",
      url: "/system/kommentarSpeichern.php",
      data: form.serialize(),
    })
      e.preventDefault();
      document.getElementById("kommentare_container").innerHTML = "";

      kommentareAnzeigen(idee_id);
  });
};



// Idee formular erstellen
function formularErstellen(koordianten) {

  document.getElementById("idee").innerHTML = "";


  let formular = document.createElement("form");
  formular.classList.add("formular");
  formular.setAttribute("action", "../system/ideeSpeichern.php");
  formular.setAttribute("method", "post");
  formular.setAttribute("id", "form");
  document.getElementById("idee").appendChild(formular);

  let koordinaten_lng = document.createElement("input");
  koordinaten_lng.setAttribute("type", "hidden");
  koordinaten_lng.setAttribute("name", "lng")
  koordinaten_lng.value = koordianten.toJSON().lng;

  let koordinaten_lat = document.createElement("input");
  koordinaten_lat.setAttribute("type", "hidden");
  koordinaten_lat.setAttribute("name", "lat")
  koordinaten_lat.value = koordianten.toJSON().lat;

  let titel_label = document.createElement("label");
  titel_label.setAttribute("for", "titel");
  titel_label.innerHTML = "Titel:";

  let titel_input = document.createElement("input");
  titel_input.setAttribute("type", "text");
  titel_input.setAttribute("name", "titel")

  let text_label = document.createElement("label");
  text_label.setAttribute("for", "text");
  text_label.innerHTML = "Text:";

  let text_input = document.createElement("input");
  text_input.setAttribute("type", "text");
  text_input.setAttribute("name", "text")

  let image_links = document.createElement("input");
  image_links.setAttribute("type", "hidden");
  image_links.setAttribute("name", "bilder");

  let submit_input = document.createElement("input");
  submit_input.setAttribute("type", "submit");
  submit_input.setAttribute("value", "Formular Absenden");


  document.getElementById("form").appendChild(titel_label);
  document.getElementById("form").appendChild(titel_input);
  document.getElementById("form").appendChild(text_label);
  document.getElementById("form").appendChild(text_input);
  document.getElementById("form").appendChild(submit_input);
  document.getElementById("form").appendChild(koordinaten_lat);
  document.getElementById("form").appendChild(koordinaten_lng);
  document.getElementById("form").appendChild(image_links);

  document.getElementById("image-upload").innerHTML = '<input type="hidden" role="uploadcare-uploader" data-public-key="3a3c37e85850c6cfe077" data-multiple="true" data-images-only data-public- data-clearable data-tabs="file camera" data-image-shrink: "1024x1024" data-system-dialog="false"/>';

  // get a widget reference
  const widget = uploadcare.Widget("[role=uploadcare-uploader]", { multiple: true});

  // listen to the "upload completed" event
  widget.onUploadComplete(fileGroupInfo => {
    // get a information about uploaded group
    // check https://uploadcare.com/docs/file-uploader-api/file-groups/#file-group-info

    let linkArr = [];
    let ImgUrl;

    $("<div>").addClass("ImgPrevContainer").appendTo($("div.image-preview"));

    for (var i = 0; i < fileGroupInfo.count; i++) {

      ImgUrl = "https://ucarecdn.com/" + fileGroupInfo.uuid + "/nth/" + i + "/-/preview/-/quality/smart/-/format/auto/";
      
      linkArr.push(ImgUrl);

      createImgPrev(ImgUrl + "-/resize/x100/"); //img Preview 100 pixels high



      
    };
    
    let linkArrString = JSON.stringify(linkArr);
    console.log(linkArrString);
    image_links.value = linkArrString;
    console.log(image_links.value);


  });


};

function createImgPrev(imgURL){

  let prevImg = $("<img>").addClass("prevIMG");
  prevImg.attr('src', imgURL);
  prevImg.appendTo($("div.ImgPrevContainer"));
}



function kommentareAnzeigen(idee_id){


  $.post("./system/alleKommentareHolen.php/?id=" + idee_id, {}).done(function(comments){

    let k = document.createElement("h3");
    let k_text = document.createTextNode("Kommentare:");
    k.appendChild(k_text);
    document.getElementById('kommentare_container').appendChild(k);


    let commentArray = JSON.parse(comments);


    for (var i = 0; i < commentArray.length; i++) {


      let thisComment = commentArray[i];


      let kommentarContainer = $("<div>").addClass("comment");


      let kommentarText = $("<p>").addClass("commentText");
      kommentarText.text(thisComment.k_text);
      kommentarText.appendTo(kommentarContainer);

      let kommentarLikeNumber = $("<p>").text(thisComment.k_likes + " Likes").addClass("commentLikeNumber");
      kommentarLikeNumber.appendTo(kommentarContainer);

      let kommentarLikeButton = $("<img>").addClass("unliked commentLike")


      if(localLikes.kommentare.includes(thisComment.k_id)){
        kommentarLikeButton.attr("src", "../images/herz-1.png");
        kommentarLikeButton.addClass("liked");
      }else{
        kommentarLikeButton.attr("src", "../images/herz-0.png");
        kommentarLikeButton.addClass("unliked");
      }

      kommentarLikeButton.appendTo(kommentarContainer);

      kommentarContainer.appendTo($("#kommentare_container"));




      kommentarLikeButton.click( function() {

        if(localLikes.kommentare.includes(thisComment.k_id)){
          kommentarLikeButton.attr("src", "../images/herz-0.png");
          kommentarLikeButton.addClass("unliked");
          kommentarLikeButton.removeClass("liked");
          removeLike("kommentar", thisComment.k_id, $(this))
        }else{

          kommentarLikeButton.attr("src", "../images/herz-1.png");
          kommentarLikeButton.addClass("liked");
          kommentarLikeButton.removeClass("unliked");
          addLike("kommentar", thisComment.k_id, $(this))

        }


      });




  
    }


  });


  }