Add warranty uploader

Fixes #2, #3, #4

provides.yml

@@ -5,4 +5,6 @@ listings:
 widgets:
     hardware_age: { view: hardware_age_widget }
     hardware_warranty: { view: hardware_warranty_widget }
-    warranty: { view: warranty_widget }
+    warranty: { view: warranty_widget }
+admin_pages:
+    admin: { i18n: warranty.warranty }

views/admin_form.php

@@ -0,0 +1,61 @@
+<?php $this->view('partials/head')?>
+
+<div class="container">
+    <div class="row">
+        <div class="col-lg-6">
+            <h3>Update warranty status</h3>
+            <p>Update warranty status of the clients</p>
+            <div class="form-group">
+                <button id="update-status" class="btn btn-default">Update</button>
+            </div>
+
+            <div class="alert alert-success hidden" role="alert" id="update-result"></div>
+        </div>
+
+        <div class="col-lg-6">
+            <h3>Update warranty information</h3>
+            <?php if($result):?>
+
+                <div class="alert alert-success alert-dismissible" role="alert">Updated entries: <?=$result['updated']?></div>
+                <div class="alert alert-info alert-dismissible" role="alert">CSV entries: <?=$result['csv_entries']?></div>
+                <div class="alert alert-warning alert-dismissible" role="alert">Invalid entries: <?=$result['invalid']?></div>
+
+            <?php endif?>
+
+            <p class="help-block">CSV file format (you also need the header): 
+                        <pre>
+"serial_number","purchase_date","end_date"
+"3X6RHPJ3P7QM","2016-06-09","2020-06-09"
+                        </pre>
+                    </p>
+
+            <form action="" method="post" enctype="multipart/form-data">
+                <input type="hidden" name="_token" value="<?php echo getCSRF();?>">
+                <div class="form-group">
+                    <label for="csv">Select csv file</label>
+                    <input type="file" name="csv" id="csv" accept=".csv">
+                </div>
+                <button type="submit" class="btn btn-default">Upload</button>
+            </form>
+        </div>
+    </div>
+</div>
+
+<script>
+    $('#update-status').click(function (e) {
+          $(this).attr('disabled', true);
+          var $btn = $(this);
+
+          function done () {
+            $btn.attr('disabled', false);
+            $('#update-result').removeClass('hidden');
+          }
+
+          $.getJSON(appUrl + '/module/warranty/update_status', function (data) {
+            done();
+            $('#update-result').text('Updated: ' + data['updated'] + ' clients');
+          });
+    });
+</script>
+
+<?php $this->view('partials/foot'); ?>

warranty_controller.php

@@ -14,6 +14,24 @@ public function __construct()
         $this->module_path = dirname(__FILE__);
     }
 
+    public function admin()
+    {        
+        require $this->module_path . '/warranty_upload.php';
+        $uploader = new Warranty_upload;
+        view('admin_form', ['result' => $uploader->handleUpload()], $this->module_path . '/views/');
+    }
+
+    public function update_status()
+    {
+        jsonView(
+            [
+                'updated' => Warranty_model::where('end_date', '<', date('Y-m-d'))
+                    ->where('warranty.status', '!=', 'Expired')
+                    ->update(['warranty.status' => 'Expired'])
+            ]
+        );
+    }
+
     public function report($serial_number = '')
     {
         jsonView(
@@ -59,6 +77,27 @@ public function get_stats($alert = false)
         );
     }
 
+
+    /**
+     * Get Warranty statistics
+     *
+     * @param bool $alert Filter on 30 days
+     **/
+    public function get_machines_expiring_next_month()
+    {
+        $between = [date('Y-m-d'), date('Y-m-d', strtotime('+30days'))];
+
+        jsonView(
+            Warranty_model::selectRaw('machine.computer_name, warranty.status')
+                ->whereBetween('end_date', $between)
+                ->join('machine', 'machine.serial_number', '=', 'warranty.serial_number')    
+                ->filter()
+                ->orderBy('end_date', 'desc')
+                ->get()
+                ->toArray()
+        );
+    }
+
     /**
      * Generate age data for age widget
      *

warranty_upload.php

@@ -0,0 +1,70 @@
+<?php
+
+class Warranty_upload
+{
+    public function __construct()
+    {
+        # code...
+    }
+
+    public function handleUpload()
+    {
+        if( ! isset( $_FILES['csv']['tmp_name'])){
+            return;
+        }
+
+        $csv = $this->_convertFileToCsv($_FILES['csv']['tmp_name']);
+
+        $result = [
+            'csv_entries' => count($csv),
+            'updated' => 0,
+            'invalid' => 0,
+        ];
+
+        foreach ($csv as $entry) {
+            if( ! $this->_validateEntry($entry)){
+                $result['invalid'] += 1;
+            }
+            else{
+                $result['updated'] += $this->_updateEntry($entry);
+            }
+        }
+
+        return $result;
+    }
+
+    private function _validateEntry($entry)
+    {
+        if( ! isset($entry['serial_number'])){
+            return false;
+        }
+        if( ! isset($entry['purchase_date'])){
+            return false;
+        }
+        if( ! isset($entry['end_date'])){
+            return false;
+        }
+        return true;
+    }
+
+    private function _updateEntry($entry)
+    {
+        return Warranty_model::where('warranty.serial_number', $entry['serial_number'])
+                ->where('purchase_date', '!=', $entry['purchase_date'])
+                ->where('end_date', '!=', $entry['end_date'])
+                ->update([
+                    'purchase_date' => $entry['purchase_date'],
+                    'end_date' => $entry['end_date'],
+                ]);
+    }
+
+    private function _convertFileToCsv($file)
+    {
+        $csv = array_map('str_getcsv', file($file));
+        array_walk($csv, function(&$a) use ($csv) {
+            $a = array_combine($csv[0], $a);
+        });
+        array_shift($csv); # remove column header
+        return $csv;
+    }
+}