feat(db): implement wallet and discount code systems

Add database migrations and Eloquent models to support user wallets,
transaction history, and discount code functionality. Includes a
one-to-one relationship between User and Wallet.

04_Laravel/app/Models/DiscountCode.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class DiscountCode extends Model
+{
+    protected $fillable = [
+        'code', 'type', 'value', 'min_order_amount', 
+        'usage_limit', 'used_count', 'expires_at', 'is_active'
+    ];
+
+    protected $casts = [
+        'expires_at' => 'datetime',
+        'is_active' => 'boolean',
+    ];
+}

04_Laravel/app/Models/User.php

@@ -5,6 +5,7 @@ namespace App\Models;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
+use App\Models\Wallet;
 
 class User extends Authenticatable
 {
@@ -54,4 +55,10 @@ class User extends Authenticatable
     {
         return $this->role === \App\Enums\UserRole::Customer;
     }
+
+    //کیف پول
+    public function wallet()
+    {
+        return $this->hasOne(Wallet::class);
+    }
 }

04_Laravel/app/Models/Wallet.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use App\Models\User;
+use App\Models\WalletTransaction;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Wallet extends Model
+{
+    protected $fillable = ['user_id', 'balance'];
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function transactions(): HasMany
+    {
+        return $this->hasMany(WalletTransaction::class);
+    }
+}

04_Laravel/app/Models/WalletTransaction.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use App\Models\Wallet;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+
+class WalletTransaction extends Model
+{
+    protected $fillable = ['wallet_id', 'amount', 'type', 'description', 'transactionable_type', 'transactionable_id'];
+
+    public function wallet(): BelongsTo
+    {
+        return $this->belongsTo(Wallet::class);
+    }
+
+    public function transactionable(): MorphTo
+    {
+        return $this->morphTo();
+    }
+}

04_Laravel/database/migrations/2026_08_05_135016_create_wallets_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('wallets', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->unique()->constrained()->cascadeOnDelete();
+            $table->decimal('balance', 15, 2)->default(0); // موجودی به ریال یا تومان
+            $table->timestamps();
+        });
+
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('wallets');
+    }
+};

04_Laravel/database/migrations/2026_08_05_135022_create_wallet_transactions_table.php

@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('wallet_transactions', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('wallet_id')->constrained()->cascadeOnDelete();
+            $table->decimal('amount', 15, 2); // مثبت برای واریز، منفی برای برداشت
+            $table->enum('type', ['deposit', 'withdraw', 'order_payment']); // نوع تراکنش
+            $table->string('description')->nullable();
+            $table->string('transactionable_type');
+            $table->unsignedBigInteger('transactionable_id');
+            $table->index(['transactionable_type', 'transactionable_id'], 'wallet_txn_morph_index');
+            $table->timestamps();
+        });
+
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('wallet_transactions');
+    }
+};

04_Laravel/database/migrations/2026_08_05_135026_create_discount_codes_table.php

@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('discount_codes', function (Blueprint $table) {
+            $table->id();
+            $table->string('code')->unique();
+            $table->enum('type', ['fixed', 'percent']); // مبلغ ثابت یا درصد
+            $table->decimal('value', 15, 2);
+            $table->decimal('min_order_amount', 15, 2)->default(0);
+            $table->integer('usage_limit')->nullable();
+            $table->integer('used_count')->default(0);
+            $table->timestamp('expires_at')->nullable();
+            $table->boolean('is_active')->default(true);
+            $table->timestamps();
+        });
+
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('discount_codes');
+    }
+};