Enable invoice emailing

app/Models/Invoice.php

@@ -3,10 +3,13 @@
 namespace App\Models;
 
 use Carbon\Carbon;
+use Clarkeash\Doorman\Facades\Doorman;
+use Clarkeash\Doorman\Models\Invite;
 use Illuminate\Database\Eloquent\Model;
 
 use App\Traits\NextKey;
 use App\Traits\PushNew;
+use Illuminate\Support\Arr;
 
 class Invoice extends Model
 {
@@ -52,7 +55,7 @@ class Invoice extends Model
 
 	public function items()
 	{
-		return $this->hasMany(InvoiceItem::class);
+		return $this->hasMany(InvoiceItem::class)->where('active',1);
 	}
 
 	public function paymentitems()
@@ -154,6 +157,29 @@ class Invoice extends Model
 		return $this->account->country->currency;
 	}
 
+	/**
+	 * Return a download link for non-auth downloads
+	 *
+	 * @return string
+	 */
+	public function download_link(): string
+	{
+		// Re-use an existing code
+		$io = Invite::where('for',$this->account->user->email)->first();
+
+		$tokendate = ($x=Carbon::now()->addDays(21)) > ($y=$this->due_date->addDays(21)) ? $x : $y;
+
+		// Extend the expire date
+		if ($io AND ($tokendate > $io->valid_until)) {
+			$io->valid_until = $tokendate;
+			$io->save();
+		}
+
+		$code = (! $io) ? Doorman::generate()->for($this->account->user->email)->uses(0)->expiresOn($tokendate)->make() : $io->code;
+
+		return url('u/invoice',[$this->id,'email',$code]);
+	}
+
 	public function products()
 	{
 		$return = collect();
@@ -196,6 +222,20 @@ class Invoice extends Model
 		})->filter()->sortBy('item_type');
 	}
 
+	/**
+	 * @param string $key
+	 * @return string
+	 * @todo Ugly hack to update reminders
+	 */
+	public function reminders(string $key) {
+		$r = unserialize($this->reminders);
+
+		if (! Arr::get($r,$key)) {
+			$r[$key] = time();
+			return serialize($r);
+		}
+	}
+
 	/**
 	 * Automatically set our due_date at save time.
 	 *