Added Schedule parsing and replaced old Fahrplan importer

Resolves #553 (Change Frab Import from xCal to XML)
Resolves #538 (Feature Request: Multi Frab Import)

3 files changed, 152 insertions, 8 deletions

diff --git a/db/migrations/2019_09_07_000000_migrate_admin_schedule_permissions.php b/db/migrations/2019_09_07_000000_migrate_admin_schedule_permissions.php
new file mode 100644
index 00000000..e39e22d8
--- /dev/null
+++ b/db/migrations/2019_09_07_000000_migrate_admin_schedule_permissions.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Engelsystem\Migrations;
+
+use Engelsystem\Database\Migration\Migration;
+
+class MigrateAdminSchedulePermissions extends Migration
+{
+    /**
+     * Run the migration
+     */
+    public function up()
+    {
+        if (!$this->schema->hasTable('Privileges')) {
+            return;
+        }
+
+        $this->schema->getConnection()
+            ->table('Privileges')
+            ->where('name', 'admin_import')
+            ->update(
+                [
+                    'name' => 'schedule.import',
+                    'desc' => 'Import rooms and shifts from schedule.xml',
+                ]
+            );
+    }
+
+    /**
+     * Reverse the migration
+     */
+    public function down()
+    {
+        if (!$this->schema->hasTable('Privileges')) {
+            return;
+        }
+
+        $this->schema->getConnection()
+            ->table('Privileges')
+            ->where('name', 'schedule.import')
+            ->update(
+                [
+                    'name' => 'admin_import',
+                    'desc' => 'Import rooms and shifts from schedule.xcs/schedule.xcal',
+                ]
+            );
+    }
+}
diff --git a/db/migrations/2019_09_07_000001_create_schedule_shift_table.php b/db/migrations/2019_09_07_000001_create_schedule_shift_table.php
new file mode 100644
index 00000000..c9cd7cfe
--- /dev/null
+++ b/db/migrations/2019_09_07_000001_create_schedule_shift_table.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace Engelsystem\Migrations;
+
+use Engelsystem\Database\Migration\Migration;
+use Illuminate\Database\Schema\Blueprint;
+
+class CreateScheduleShiftTable extends Migration
+{
+    use Reference;
+
+    /**
+     * Run the migration
+     */
+    public function up()
+    {
+        $this->schema->create(
+            'schedules',
+            function (Blueprint $table) {
+                $table->increments('id');
+                $table->string('url');
+            }
+        );
+
+        $this->schema->create(
+            'schedule_shift',
+            function (Blueprint $table) {
+                $table->integer('shift_id')->index()->unique();
+                if ($this->schema->hasTable('Shifts')) {
+                    // Legacy table access
+                    $table->foreign('shift_id')
+                        ->references('SID')->on('Shifts')
+                        ->onUpdate('cascade')
+                        ->onDelete('cascade');
+                }
+
+                $this->references($table, 'schedules');
+                $table->uuid('guid');
+            }
+        );
+
+        if ($this->schema->hasTable('Shifts')) {
+            $this->schema->table(
+                'Shifts',
+                function (Blueprint $table) {
+                    $table->dropColumn('PSID');
+                }
+            );
+        }
+
+        if ($this->schema->hasTable('Room')) {
+            $this->schema->table(
+                'Room',
+                function (Blueprint $table) {
+                    $table->dropColumn('from_frab');
+                }
+            );
+        }
+    }
+
+    /**
+     * Reverse the migration
+     */
+    public function down()
+    {
+        if ($this->schema->hasTable('Room')) {
+            $this->schema->table(
+                'Room',
+                function (Blueprint $table) {
+                    $table->boolean('from_frab')
+                        ->default(false);
+                }
+            );
+        }
+
+        if ($this->schema->hasTable('Shifts')) {
+            $this->schema->table(
+                'Shifts',
+                function (Blueprint $table) {
+                    $table->integer('PSID')
+                        ->nullable()->default(null)
+                        ->unique();
+                }
+            );
+        }
+
+        $this->schema->drop('schedule_shift');
+        $this->schema->drop('schedules');
+    }
+}
diff --git a/db/migrations/Reference.php b/db/migrations/Reference.php
index 49a1f9ea..d0550686 100644
--- a/db/migrations/Reference.php
+++ b/db/migrations/Reference.php
@@ -4,6 +4,7 @@ namespace Engelsystem\Migrations;
 
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\ColumnDefinition;
+use Illuminate\Support\Str;
 
 trait Reference
 {
@@ -11,20 +12,25 @@ trait Reference
      * @param Blueprint $table
      * @param bool      $setPrimary
      */
-    protected function referencesUser(Blueprint $table, $setPrimary = false)
+    protected function referencesUser(Blueprint $table, bool $setPrimary = false)
     {
-        $this->references($table, 'users', 'user_id', $setPrimary);
+        $this->references($table, 'users', null, $setPrimary);
     }
 
     /**
-     * @param Blueprint $table
-     * @param string    $targetTable
-     * @param string    $fromColumn
-     * @param bool      $setPrimary
+     * @param Blueprint   $table
+     * @param string      $targetTable
+     * @param string|null $fromColumn
+     * @param bool        $setPrimary
      * @return ColumnDefinition
      */
-    protected function references(Blueprint $table, $targetTable, $fromColumn, $setPrimary = false): ColumnDefinition
-    {
+    protected function references(
+        Blueprint $table,
+        string $targetTable,
+        ?string $fromColumn = null,
+        bool $setPrimary = false
+    ): ColumnDefinition {
+        $fromColumn = $fromColumn ?? Str::singular($targetTable) . '_id';
         $col = $table->unsignedInteger($fromColumn);
 
         if ($setPrimary) {