Initial Ladill Transfer app — file sharing with QR links.

Scaffolded from the Ladill mini/events extraction pattern: multi-file transfers, retention controls, public landing pages, analytics, and Gitea deploy workflow. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-06-08 09:25:30 +00:00
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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class QrWallet extends Model
+{
+    public const STATUS_ACTIVE = 'active';
+    public const STATUS_SUSPENDED = 'suspended';
+
+    protected $fillable = [
+        'user_id',
+        'credit_balance',
+        'qr_codes_total',
+        'scans_total',
+        'status',
+    ];
+
+    protected $casts = [
+        'credit_balance' => 'decimal:4',
+        'qr_codes_total' => 'integer',
+        'scans_total' => 'integer',
+    ];
+
+    public static function pricePerQr(): float
+    {
+        return (float) config('qr.price_per_qr_ghs', 5.0);
+    }
+
+    public static function minTopupGhs(): float
+    {
+        return (float) config('qr.min_topup_ghs', 5.0);
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function transactions(): HasMany
+    {
+        return $this->hasMany(QrTransaction::class)->latest();
+    }
+
+    /**
+     * Single-wallet (siloing step 2): QR spends from the one UserWallet (tagged
+     * 'qr'). Delegates to the billing service (lazily folds any legacy
+     * credit_balance in). `spendableBalance()` is the unified balance for display.
+     */
+    public function spendableBalance(): float
+    {
+        return $this->user
+            ? app(\App\Services\Qr\QrWalletBillingService::class)->balanceCedis($this->user)
+            : (float) $this->credit_balance;
+    }
+
+    public function canCreateQr(): bool
+    {
+        return $this->user
+            ? app(\App\Services\Qr\QrWalletBillingService::class)->canCreate($this->user)
+            : false;
+    }
+}