add schedule seeder helper (#179)

* add schedule seeder helper

* styleci

src/Seeding/AbstractScheduleSeeder.php

@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * This file is part of SeAT
+ *
+ * Copyright (C) 2015 to present Leon Jacobs
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+namespace Seat\Services\Seeding;
+
+use Illuminate\Database\Seeder;
+use Illuminate\Support\Facades\DB;
+
+abstract class AbstractScheduleSeeder extends Seeder
+{
+    /**
+     * Returns an array of schedules that should be seeded whenever the stack boots up.
+     *
+     * @return array
+     */
+    abstract public function getSchedules(): array;
+
+    /**
+     * Returns a list of commands to remove from the schedule.
+     *
+     * @return array
+     */
+    abstract public function getDeprecatedSchedules(): array;
+
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run(): void
+    {
+        // Check if we have the schedules, else, insert them
+        $schedules = $this->getSchedules();
+        foreach ($schedules as $job) {
+            if (! DB::table('schedules')->where('command', $job['command'])->exists()) {
+                DB::table('schedules')->insert($job);
+            }
+        }
+
+        // drop deprecated commands
+        DB::table('schedules')->whereIn('command', $this->getDeprecatedSchedules())->delete();
+    }
+}