<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class CouponUsage extends Model
{
    protected $fillable = [
        'coupon_id',
        'user_id',
        'subscription_id',
        'discount_amount',
        'currency',
        'used_at',
        'metadata',
    ];

    protected $casts = [
        'discount_amount' => 'decimal:2',
        'used_at' => 'datetime',
        'metadata' => 'array',
    ];

    protected $dates = [
        'used_at',
    ];

    /**
     * Relationships
     */
    public function coupon()
    {
        return $this->belongsTo(Coupon::class);
    }

    public function user()
    {
        return $this->belongsTo(User::class);
    }

    public function subscription()
    {
        return $this->belongsTo(Subscription::class);
    }

    /**
     * Get formatted discount amount
     */
    public function getFormattedDiscountAttribute(): string
    {
        return $this->currency.' '.number_format($this->discount_amount, 2);
    }

    /**
     * Scope: By user
     */
    public function scopeByUser($query, $userId)
    {
        return $query->where('user_id', $userId);
    }

    /**
     * Scope: By coupon
     */
    public function scopeByCoupon($query, $couponId)
    {
        return $query->where('coupon_id', $couponId);
    }

    /**
     * Scope: Within date range
     */
    public function scopeBetweenDates($query, $startDate, $endDate)
    {
        return $query->whereBetween('used_at', [$startDate, $endDate]);
    }
}