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<!DOCTYPE html>
<html>
<head>
  <title><%= title %></title>
  <link rel='stylesheet' href='/stylesheets/style.css' />
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  <script src="https://unpkg.com/vue"></script>
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</head>
<body>
  <h1><%= title %></h1>
  <div id="files"></div>
  <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
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  <!-- Vue app element -->
        <h1><a v-bind:href="'?path=' + files.up +  '&dataset_path=' +  dataset_path">.. </a></h1>
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        <template v-if="context && context.entities">

        <template v-for="(item, id) in context.entities">
        
          <template v-if="item.properties.type && !item.properties.type[0].value.includes('PropertyValue')">
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          <h2 v-bind:id="id">
            <form v-on:submit.prevent="removeItem(id)">
             
              <button type="submit">-</button> {{ id }} 
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          <form v-if="id === context.root" v-on:submit.prevent="crate(item)">
              <button type="submit" title="Make / Update a DataCrate here (generate CATALOG.json and CATALOG.html)">[crate]</button> 
              <a v-if="item.crate_href" v-bind:href="item.crate_href">View CATALOG.html</a>
          </form>
        <img width="60%" v-bind:src='item._img'>
        <show-props v-bind:item="item" v-bind:schema="schema" v-bind:context="context" v-bind:type="type" v-bind:methods="methods" v-bind:changed="changed"></show-props>
    
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          <form v-on:submit.prevent="addContextProp(item)">
              <select  v-model="prop_name"  >
                <template v-for="(prop, prop_name) in schema.properties">
                  <option v-if="!item.properties[prop_name]">{{prop_name}}</option>
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                </select>
              <button type="submit">+</button>
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          </form>
          <br><br>
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        </template>
            
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        <form v-on:submit.prevent="addContext(context)">
            <select  v-model="type" >
               <option v-for="type_name in Object.getOwnPropertyNames(schema.types).filter(type => {return schema.types[type].create})" v-bind:value="type_name"> {{ type_name }} </option>
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              </select>
            <button type="submit">Add contextual item</button>
        </form>
        <a v-bind:href="'/?path=' + display_path + '&dataset_path=' +  display_path">
        <template v-if="files.existing_describo">
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            Edit existing data package
        </template>
        <template v-else>
            Package a dataset here
        </template>
       </a> </h1>
    <table>
      <tr>
        <tr>
        <th>Directories</th>
        <th>Files</th>
      </tr>
      <tr>
          <td>
              <div id="dirlist">
                  <ul v-for="dir in files.dirs">
                    <li><a v-bind:href="'?path=' + dir.absolute + '&dataset_path=' +  dataset_path">{{ dir.name }}</a>
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                      <form v-if="context.entities" v-on:submit.prevent="addDir(dir)" style="display:inline;">
                          <button type="submit" title="Add directory to package">+</button>
                      </form></li>
                  </ul>
              </div>
            </td>
        <td>
         
     <div id="filelist">
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       <div v-for="(file, path) in files.files">
         <template v-if="context && !(context.entities[file.id])">
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         <h4>{{ file.filename }}  <form v-if="context.entities" v-on:submit.prevent="addFile(file)" style="display:inline;">
            <button type="submit" title="Add file to package">+</button></h4>
         <img width="50%" v-bind:src='file._img'>
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       </div>
      </div>
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    </div>
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  </div>
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  <!-- end Vue app element -->


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  <script>
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  var vue;
  
  var files = {};
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  document.addEventListener("DOMContentLoaded", function(event) {
     const urlParams = new URLSearchParams(window.location.search);
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     const display_path = urlParams.get('path');
     const dataset_path = urlParams.get('dataset_path');
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     const addRootDir = function addRootDir(context) {
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        var new_item = JSON.parse(JSON.stringify(schema.types.Dataset.template));
        new_item.properties.name[0].value = "Untitled";
        new_item.properties.hasPart = [];
        context.entities[dataset_path] = new_item;

      }
      }
    axios.get('/files?path=' + display_path)
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    .then(function (response) {
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      var params =  dataset_path ? '?dataset_path=' + dataset_path : "";
      axios.get("/schema").then(function(response){
        schema = response.data;
        axios.get("/context_entities" + params).then(function(response){
        var context = response.data;
        if (context.root) {
          if (context.root != dataset_path) {
            context.entities[dataset_path] = JSON.parse(JSON.stringify(context.entities[context.root]));
            delete context.entities[context.root];
            context.root = dataset_path;
           
          }
        }
        else {
            context.root = dataset_path;
            addRootDir(context);
         }
        Vue.component('show-entity-name' , {
          props: ['name', 'item', 'methods', 'changed'],
          template: `
                <span>
                <form v-on:submit.prevent="methods.removeProp(item, name)" style='display:inline;' v-bind:data="changed">                     
                    <button type="submit">-</button>
                </form>
                {{ name }}
                </span>
                `
        });
        Vue.component('paginate-values', {
          props: ['name', 'item', 'methods', 'changed', 'context', 'values', 'schema', 'page'],
          template: 
          `
          <div>
              
          
          <template v-if="values.length > 20 && values.length > (page) * 20" >
               
                <details>
                  
                    <summary>
                       {{context.entities[values[page * 20].id].properties.name[0].value}} ... 
                    </summary>
                  
                  
                  <div v-for="i_index in 20">
                    
                    <show-value v-if="i_index + page * 20 < values.length" v-bind:name="name"  
                                v-bind:item="item" 
                                v-bind:methods="methods" 
                                v-bind:changed="changed" 
                                v-bind:context="context" 
                                v-bind:values="values"
                                v-bind:schema="schema"
                                v-bind:val="values[i_index + page * 20]"
                                v-bind:i_index="i_index"
                                > 
                  </show-value>    
                 </div>
                </details>
               
                <paginate-values  v-bind:name="name"  
                                  v-bind:item="item" 
                                  v-bind:methods="methods" 
                                  v-bind:changed="changed" 
                                  v-bind:context="context" 
                                  v-bind:values="values"
                                  v-bind:schema="schema"
                                  v-bind:page="page + 1"> 
                  </paginate-values>
             
          </template>
          <template v-else-if="page === 0">
            <div v-for="(val, i_index) in values">
                <show-value v-bind:name="name"  
                            v-bind:item="item" 
                            v-bind:methods="methods" 
                            v-bind:changed="changed" 
                            v-bind:context="context" 
                            v-bind:values="values"
                            v-bind:schema="schema"
                            v-bind:val="val"
                            v-bind:i_index="i_index"> 
                    </show-value>    
            </div>
           </template>
    
          </div>
          `
        });

        Vue.component('show-value', {
          props: ['name', 'item', 'methods', 'changed', 'context', 'values', 'schema', 'i_index','val'],

          template: 
          `
          <div>
         
            <form v-on:submit.prevent="methods.removeValue(values, i_index)" style='display:inline;'>                     
                <button type="submit" title="Delete this property">-</button>
            </form>
            
            <!-- Input form -->
            <template v-if="schema.properties[name] && schema.properties[name].input === 'text'">
                    <input v-model="val.value" type="text" size="45" v-on:keyup="methods.trigger_change_on_enter"/>
                
            </template>
            <!-- UNLINK button for linked props -->
            <template v-else-if="val && val.id && context.entities[val.id] && context.entities[val.id].properties.name">
                <a v-bind:href="'#' + val.id">{{  context.entities[val.id].properties.name[0].value }}</b></a>
                <form v-on:submit.prevent="methods.unlinkProp(val)" style='display:inline;'>                     
                    <button type="submit">unlink</button>
                </form>
            </template>

            <!-- FALLBACK - DISPLAY -->
            <b v-else>
                <input v-model="val.value" type="text" size="45" v-on:keyup="methods.trigger_change_on_enter"/>

            </b>
          
          
            <template v-if="schema.properties[name] && schema.properties[name].input === 'link' " >
                <form v-on:submit.prevent="methods.linkProp(val)" style='display:inline;'  v-if="!val.id">      
                  <button type="submit"> -> </button>               
                  <select  v-model="val.selection">
                    
                    <template v-for="(link_item, link_id) in context.entities">
                      {{link_id}}
                      <template v-for="other_name in link_item.properties.name">  
                        <option v-if="(!val.id || link_id != val.id) && schema.properties[name] && link_item.properties.type && schema.properties[name].type.includes(link_item.properties.type[0].value)" v-bind:value="link_id">{{ other_name.value  }}</option>
                      </template>
                    </template>
                  </select>
                  
                </form>
        

                
                <form v-on:submit.prevent="methods.linkToNew(val)" style='display:inline;'  v-if="!val.id && schema.properties[name] && schema.properties[name].type && schema.properties[name].type.filter(t => {return (schema.types[t] && schema.types[t].create)}).length > 0">      
                    ... or ...
                    <button type="submit" text="Link to a new contextual item"> -> New -> </button>               
                    <select  v-model="val.new_type" v-for="type in schema.properties[name].type.filter(type => {return (schema.types[type] && schema.types[type].create)})">
                        <option> {{ type  }} </option>                        
                    </select>       
                </form>

            </template>          
          
          </div>
          `
        });

        Vue.component('show-props', {
          props: ['item', 'schema', 'context', 'type', 'methods', 'changed'],
          template: `
          
        <table width="100%">
         
          <tr v-for="(values, name) in item.properties" v-bind:data="changed">
            <td>
                
               <show-entity-name v-bind:name="name"  v-bind:item="item" v-bind:methods="methods" v-bind:changed="changed"></show-entity-name>
            </td>
            <td>
                <form v-on:submit.prevent="methods.addProp(item, name)" style='display:inline;'>                     
                    <button type="submit">+</button>
                </form>
            </td>
            <td>               
                  <!-- Put in summary here / Paginate-->
                  <paginate-values v-bind:name="name"  
                                    v-bind:item="item" 
                                    v-bind:methods="methods" 
                                    v-bind:changed="changed" 
                                    v-bind:context="context" 
                                    v-bind:values="values"
                                    v-bind:schema="schema"
                                    v-bind:page="0"> 
                  </paginate-values>
             
           
            </td>
          </tr>
        </table>
          `

        });

        const methods = {
        
        "save_context": function save_context() {
              var params = '?dataset_path=' + dataset_path;
              axios.post('/context_entities' + params, context).then(
                function () {
          "crate": function crate(item) {
              var params = '?dataset_path=' + dataset_path;
              var href = "/preview?path=" + dataset_path + "/CATALOG.html"
              var save = this.save_context;
              axios.get('/crate' + params).then(
                function () {
                  item.crate_href = href;
                  save();
                }

              )
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            },
        "addContextProp": function addContextProp(item){
          // Warning! Repetition!
          var prop_name = this.prop_name;
          if (item.properties[prop_name]) {
              item.properties[prop_name].push({"value": "", "id": ""});
          } else {
              item.properties[prop_name] = [{"value": "", "id": ""}];
          }
          this.changed += 1;                
          this.save_context();         
        },
        "addProp": function addProp(item, prop_name){
          if (item.properties[prop_name]) {
              item.properties[prop_name].push({"value": "", "id": ""});
          } else {
              item.properties[prop_name] = [{"value": "", "id": ""}];
          }
          data.changed += 1;                
          methods.save_context();
        },

        "removeValue": function removeValue(values,i) {
          values.splice(i,1)
          data.changed += 1;   
          methods.save_context();         
        
        },

        "removeProp": function removeProp(item, prop_name){
          delete item.properties[prop_name];
          data.changed += 1;   
          methods.save_context();         
        
        },

        "trigger_change_on_enter": function(e) {
          if (e.keyCode === 13) {
          data.changed += 1;

          methods.save_context();
          } 
          
        },
        "linkProp": function linkProp(val) { 
          val.value = context.entities[val.selection].properties.name[0].value;
          val.id = val.selection;
          this.changed += 1;  
          this.save_context();     
        },
        "unlinkProp": function unlinkProp(val) {  
  
          val.value = "";
          val.id = "";
          data.changed += 1;  
          methods.save_context();     
        },
        "directory_path" : function directory(file) {
            var container_dir_array = file.id.split("/");
            container_dir_array.pop();
            var container_dir = container_dir_array.join("/");
            var dir_name = container_dir_array.pop();
            return({"dir_name": dir_name, dir_path: container_dir })
        },
        "addParentDataset": function addParentDataset(file) {
            var dir_details = this.directory_path(file);
            var diff = dir_details.dir_path.replace(context.root, "");
          // Don't make dirs outside of the package
            if (diff != dir_details.dir_path && !context.entities[dir_details.dir_path]) {
              var dir = {"id": dir_details.dir_path, "name": dir_details.dir_name};
              this.addDir(dir);
              context.entities[dir_details.dir_path].properties.hasPart = [];
            context.entities[dir_details.dir_path].properties.hasPart.push({"id": file.id});
            this.changed += 1;  
            this.save_context();
          },
        
        "addFile": function addFile(file) {
          if (!context.entities[file.id]) {
            var new_item = JSON.parse(JSON.stringify(schema.types.File.template));
            new_item.properties.name[0].value = file.name;
            new_item._img = file._img;
            context.entities[file.id] = new_item;
            this.addParentDataset(file);
          }
        },
        "addRootDir":  addRootDir,
        "addDir": function addDir(file) {
          if (!context.entities[file.id]) {
            var new_item = JSON.parse(JSON.stringify(schema.types.Dataset.template));
            new_item.properties.name[0].value = file.name;
            new_item.properties.hasPart = [];
            context.entities[file.id] = new_item;
            this.addParentDataset(file);

            this.changed += 1;  
            this.save_context();
          }
          else {
            alert("Already got that directory"); //Should never fire but you never know
        },
        "removeItem": function remove_item(id) {    
          delete context.entities[id];
          this.changed += 1;
          this.save_context();
          
        },
        "linkToNew" : function linkToNew(val) {
            this.type = val.new_type;
            val.id = this.addContext(context);
            this.save_context();

          },
        "addContext": function addContext(context){
          while (context.entities[data.latest_id.toString()]) {
            data.latest_id += 1;
          }
          var id = data.latest_id.toString();
          context.entities[id] = JSON.parse(JSON.stringify(schema.types[this.type].template));
          context.entities[id].properties.name=[{"value": this.type + "(" + id + ")"}]
          data.changed += 1;
          this.save_context();
          return(id);

        }
      };
      const data = {
            files: files,
            context: context,
            schema: schema,
            prop: {"name":"nom", "value": "val"},
            type: "Person",
            prop_name: "",
            link_to_id: {},
            link_id: "",
            changed: 0,
            latest_id: 0,
            display_path: display_path,
            dataset_path: dataset_path,
            methods: methods
          };

        vue = new Vue({
          el: "#app",
          data: data,
          methods: methods
        });
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      //document.getElementById("files").innerHTML = response['data'].model;
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    })
    .catch(function (error) {
      // handle error
      console.log(error);
    })
    .then(function () {
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      console.log("done")
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      // always executed
    });
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  </script>
</body>

</html>