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<?php namespace Common\Billing;
use App\Models\User;
use Carbon\Carbon;
use Common\Billing\Gateways\Contracts\CommonSubscriptionGatewayActions;
use Common\Billing\Gateways\Paypal\Paypal;
use Common\Billing\Gateways\Stripe\Stripe;
use Common\Billing\Models\Price;
use Common\Billing\Models\Product;
use Common\Billing\Subscriptions\SubscriptionFactory;
use Common\Core\BaseModel;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use LogicException;
class Subscription extends BaseModel
{
use HasFactory;
public const MODEL_TYPE = 'subscription';
protected $guarded = ['id'];
protected $appends = [
'on_grace_period',
'on_trial',
'valid',
'active',
'cancelled',
];
protected $casts = [
'id' => 'integer',
'price_id' => 'integer',
'product_id' => 'integer',
'quantity' => 'integer',
'trial_ends_at' => 'datetime',
'ends_at' => 'datetime',
'renews_at' => 'datetime',
];
public function getOnGracePeriodAttribute(): bool
{
return $this->onGracePeriod();
}
public function getOnTrialAttribute(): bool
{
return $this->onTrial();
}
public function getValidAttribute(): bool
{
return $this->valid();
}
public function getActiveAttribute(): bool
{
return $this->active();
}
public function getCancelledAttribute(): bool
{
return $this->cancelled();
}
public function user(): BelongsTo
{
return $this->belongsTo(User::class);
}
public function price(): BelongsTo
{
return $this->belongsTo(Price::class);
}
public function product(): BelongsTo
{
return $this->belongsTo(Product::class);
}
public function onTrial(): bool
{
if (!is_null($this->trial_ends_at)) {
return Carbon::now()->lt($this->trial_ends_at);
} else {
return false;
}
}
/**
* Determine if the subscription is active, on trial, or within its grace period.
*/
public function valid(): bool
{
return $this->active() || $this->onTrial() || $this->onGracePeriod();
}
public function active(): bool
{
return is_null($this->ends_at) || $this->onGracePeriod();
}
/**
* Determine if the subscription is no longer active.
*/
public function cancelled(): bool
{
return !is_null($this->ends_at);
}
/**
* Determine if the subscription is within its grace period after cancellation.
*/
public function onGracePeriod(): bool
{
if (!is_null($endsAt = $this->ends_at)) {
return Carbon::now()->lt(Carbon::instance($endsAt));
} else {
return false;
}
}
public function changePlan(Product $newProduct, Price $newPrice): self
{
$isSuccess = $this->gateway()?->changePlan(
$this,
$newProduct,
$newPrice,
);
if ($isSuccess) {
$this->fill([
'product_id' => $newProduct->id,
'price_id' => $newPrice->id,
'ends_at' => null,
])->save();
}
return $this;
}
public function cancel(bool $atPeriodEnd = true): self
{
if ($this->gateway_name !== 'none') {
$this->gateway()->cancelSubscription($this, $atPeriodEnd);
}
// If the user was on trial, we will set the grace period to end when the trial
// would have ended. Otherwise, we'll retrieve the end of the billing period
// and make that the end of the grace period for this current user.
if ($this->onTrial()) {
$this->ends_at = $this->trial_ends_at;
} else {
$this->ends_at = $this->renews_at;
}
$this->renews_at = null;
$this->save();
return $this;
}
/**
* Mark subscription as cancelled on local database
* only, without interacting with payment gateway.
*/
public function markAsCancelled(): void
{
$this->fill([
'ends_at' => $this->renews_at,
'renews_at' => null,
])->save();
}
/**
* Cancel the subscription immediately and delete it from database.
*/
public function cancelAndDelete(): self
{
$this->cancel(false);
$this->delete();
$this->user->update([
'card_last_four' => null,
'card_brand' => null,
'card_expires' => null,
]);
return $this;
}
public function resume(): self
{
if (!$this->onGracePeriod()) {
throw new LogicException(
__(
'Unable to resume subscription that is not within grace period.',
),
);
}
if ($this->onTrial()) {
$trialEnd = $this->trial_ends_at->getTimestamp();
} else {
$trialEnd = 'now';
}
// To resume the subscription we need to set the plan parameter on the Stripe
// subscription object. This will force Stripe to resume this subscription
// where we left off. Then, we'll set the proper trial ending timestamp.
if ($this->gateway_name !== 'none') {
$this->gateway()->resumeSubscription($this, [
'trial_end' => $trialEnd,
]);
}
// Finally, we will remove the ending timestamp from the user's record in the
// local database to indicate that the subscription is active again and is
// no longer "cancelled". Then we will save this record in the database.
$this->renews_at = $this->ends_at;
$this->ends_at = null;
$this->save();
return $this;
}
/**
* Get gateway this subscription was created with.
*/
public function gateway(): ?CommonSubscriptionGatewayActions
{
if ($this->gateway_name === 'stripe') {
return app(Stripe::class);
} elseif ($this->gateway_name === 'paypal') {
return app(Paypal::class);
}
return null;
}
public function toNormalizedArray(): array
{
return [
'id' => $this->id,
'name' => $this->this->gateway_name,
'model_type' => self::MODEL_TYPE,
];
}
public function toSearchableArray(): array
{
return [
'id' => $this->id,
'product_id' => $this->product_id,
'price_id' => $this->price_id,
'gateway_name' => $this->gateway_name,
'user' => $this->user ? $this->user->getSearchableValues() : null,
'description' => $this->description,
'ends_at' => $this->ends_at,
'created_at' => $this->created_at->timestamp ?? '_null',
'updated_at' => $this->updated_at->timestamp ?? '_null',
];
}
protected function makeAllSearchableUsing($query)
{
return $query->with(['user']);
}
public static function filterableFields(): array
{
return [
'id',
'product_id',
'price_id',
'gateway_name',
'ends_at',
'created_at',
'updated_at',
];
}
protected static function newFactory()
{
return SubscriptionFactory::new();
}
public static function getModelTypeAttribute(): string
{
return self::MODEL_TYPE;
}
}