1 files changed, 150 insertions, 0 deletions
diff --git a/src/Model/Event/SendResources.php b/src/Model/Event/SendResources.php
new file mode 100644
index 0000000..5c751fd
--- /dev/null
+++ b/src/Model/Event/SendResources.php
@@ -0,0 +1,150 @@
+<?php
+
+namespace App\Model\Event;
+
+use App\DB;
+use App\Model\Event;
+use App\Model\Unit;
+use App\Model\Unit\Merchant;
+use App\Model\Village;
+
+class SendResources extends BaseEvent
+{
+  public int $wood = 0;
+  public int $clay = 0;
+  public int $iron = 0;
+  public int $food = 0;
+
+  public int $source;
+  public int $destination;
+
+  public bool $isCanceled = false;
+
+  /**
+   * @return void
+   */
+  public function __invoke(): void
+  {
+    if ($this->isCanceled) {
+      // TODO: switch destination and source
+      // TODO: add resources back to "destination"
+      // TODO: add merchants back to "destination"
+    }
+
+    else {
+      // TODO: account for storage capacity
+      DB::query(
+        'update villages set wood=wood+:wood, clay=clay+:clay, iron=iron+:iron, food=food+:food where id=:id',
+        [
+          'wood' => $this->wood,
+          'clay' => $this->clay,
+          'iron' => $this->iron,
+          'food' => $this->food,
+          'id' => $this->destination,
+        ]
+      );
+
+      $source = Village::get($this->source);
+      $destination = Village::get($this->destination);
+
+      $event = new Event();
+      $event->time = (new \DateTime())->add(
+        \DateInterval::createFromDateString(
+          Unit::getTravelTime(new Merchant(), Village::getDistance($source->x, $source->y, $destination->x, $destination->y))
+            . ' seconds'
+        )
+      );
+      $event->villageId = $this->source;
+
+      $sendResourcesMerchants = new SendResourcesMerchants();
+      $sendResourcesMerchants->dbInsert($this->id);
+
+
+      // TODO: add resources to destination
+      // (TODO: add foreign merchants to destination)?
+      // TODO: create SendUnits event with merchants back to source
+    }
+  }
+
+  public function dbInsert(): void
+  {
+    DB::query(
+      'insert into events (time, village_id) VALUES (:time, :village_id)',
+      ['time' => $this->event->time->format('c'), 'village_id' => $this->event->villageId]
+    );
+
+    DB::query(
+      <<<SQL
+      insert into events_send_resources (event_id, wood, clay, iron, food, source, destination, is_canceled)
+      VALUES (:event_id, :wood, :clay, :iron, :food, :source, :destination, :is_canceled)
+      SQL,
+      [
+        'event_id' => DB::$connection->lastInsertId(),
+        'wood' => $this->wood,
+        'clay' => $this->clay,
+        'iron' => $this->iron,
+        'food' => $this->food,
+        'source' => $this->source, 'destination' => $this->destination,
+        'is_canceled' => $this->isCanceled ?: 0, // @see https://www.php.net/manual/de/pdostatement.execute.php#126013
+      ]
+    );
+    $sendResourcesEventId = DB::$connection->lastInsertId();
+
+    $resourceCapabilities = Merchant::getResourceCapabilities($this->event->villageId);
+    $resourcesTotal = $this->wood + $this->clay + $this->iron + $this->food;
+    $necessaryMerchants = ceil($resourcesTotal / $resourceCapabilities);
+
+    $merchantsAccountedFor = 0;
+    while ($merchantsAccountedFor < $necessaryMerchants) {
+      $merchants = DB::fetch(
+        Merchant::class,
+        'select * from village_units where type=:type and residence_village_id=:villageId and is_traveling=false',
+        ['type' => 'Merchant', 'villageId' => $this->source]
+      );
+      foreach ($merchants as $merchant) {
+        /**@type Merchant $merchant*/
+
+        $currentlyNecessaryMerchants = $necessaryMerchants - $merchantsAccountedFor;
+        $currentlyUseableMerchants = $currentlyNecessaryMerchants - $merchant->amount < 0 ? $currentlyNecessaryMerchants : $merchant->amount;
+        $merchantsAccountedFor += $currentlyUseableMerchants;
+
+        DB::query(
+          <<<SQL
+          insert into village_units (amount, type, is_traveling, home_village_id, residence_village_id)
+          VALUES (:amount, :type, true, :home, :residence)
+            on conflict (type, home_village_id, residence_village_id, is_traveling)
+            do update set is_traveling=true
+          SQL,
+          [
+            'amount' => $currentlyUseableMerchants,
+            'type' => 'Merchant',
+            'home' => $merchant->homeVillageId,
+            'residence' => $merchant->residenceVillageId,
+          ]
+        );
+        DB::query('update village_units set amount=amount-:amount where id=:unitId', ['amount' => $necessaryMerchants, 'unitId' => $merchant->id]);
+
+        DB::query(
+          <<<SQL
+          insert into events_send_resources_merchants (event_id, unit_id, amount)
+          VALUES (:event_id, :unit_id, :amount)
+          SQL,
+          [
+            'event_id' => $sendResourcesEventId,
+            'unit_id' => $merchant->id,
+            'amount' => $necessaryMerchants,
+          ]
+        );
+      }
+    }
+
+    // TODO: remove resources from source
+  }
+
+  public function dbDelete(): void
+  {
+    DB::query('delete from events where id=:id', ['id' => $this->eventId]);
+    DB::query('delete from events_send_resources where id=:id', ['id' => $this->id]);
+    #DB::query('delete from events_send_resources_merchants where event_id=:id', ['id' => $this->id]);
+  }
+}