feat: implement currency rates tracking with models, migrations and views

database/factories/RateFactory.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\City;
+use App\Models\Currency;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\Rate>
+ */
+class RateFactory extends Factory
+{
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'currency_id' => Currency::factory(),
+            'city_id' => City::factory(),
+
+            'buy_price' => fn ($attributes) => $attributes['currency_id'] == Currency::SAR
+                ? fake()->randomFloat(2, 1, 300)
+                : fake()->randomFloat(2, 500, 1000),
+            'sell_price' => fn ($attributes) => $attributes['currency_id'] == Currency::SAR
+                ? fake()->randomFloat(2, 1, 300)
+                : fake()->randomFloat(2, 500, 1000),
+
+            'date' => fake()->dateTimeBetween('-20 days', 'today'),
+        ];
+    }
+
+    public function withDate($date)
+    {
+        return $this->state([
+            'date' => $date,
+        ]);
+    }
+
+    public function today()
+    {
+        return $this->state([
+            'date' => now(),
+        ]);
+    }
+
+    public function yesterday()
+    {
+        return $this->state([
+            'date' => now()->subDay(),
+        ]);
+    }
+
+    public function last20Days()
+    {
+        return $this->state([
+            'date' => fake()->unique()->dateTimeBetween('-20 days', 'yesterday'),
+        ]);
+    }
+}