173 lines
4.4 KiB
PHP
173 lines
4.4 KiB
PHP
<?php
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namespace App\Models;
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use App\Exceptions\User\BalanceNotEnoughException;
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use GeneaLabs\LaravelModelCaching\Traits\Cachable;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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class Subscription extends Model
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{
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use Cachable;
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public $fillable = [
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'name',
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'status',
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'plan_id',
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'configuration',
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'price',
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'expired_at',
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'trial_ends_at',
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'module_id',
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'user_id',
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'cancel_at_period_end',
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'renew_price',
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];
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protected $casts = [
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'configuration' => 'array',
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'price' => 'decimal:2',
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'renew_price' => 'decimal:2',
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];
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protected $dates = [
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'expired_at',
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'trial_ends_at',
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];
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public function scopeThisUser($query, $module_id = null)
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{
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$query = $query->where('user_id', auth()->id());
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if ($module_id) {
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$query = $query->where('module_id', $module_id);
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}
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return $query;
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}
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public function user(): BelongsTo
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{
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return $this->belongsTo(User::class);
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}
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public function module(): BelongsTo
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{
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return $this->belongsTo(Module::class);
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}
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public function active(): bool
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{
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return $this->canActivate() && $this->renew();
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}
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public function canActivate(bool $ignore_activated = false): bool
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{
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if ($ignore_activated && $this->isActive()) {
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return true;
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}
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// 检测 trial_ends_at 是否过期
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if ($this->trial_ends_at && $this->trial_ends_at->isPast()) {
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return false;
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}
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return true;
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}
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public function isActive(): bool
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{
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return $this->status === 'active';
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}
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public function renew(): bool
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{
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if ($this->isTrial()) {
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$this->status = 'active';
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}
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// 如果过期时间距离今天超过了 7 天，那么就不能续费了
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if ($this->expired_at && $this->expired_at->diffInDays(now()) > 7) {
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return false;
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}
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$price = $this->price;
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try {
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$this->user->reduce($price, '订阅: '.$this->name, true, [
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'module_id' => $this->module_id,
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'user_id' => $this->user_id,
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'subscription_id' => $this->id,
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]);
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$this->module->charge($price, 'module_balance', '订阅: '.$this->name.' 续费', [
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'module_id' => $this->module_id,
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'user_id' => $this->user_id,
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'subscription_id' => $this->id,
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]);
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} catch (BalanceNotEnoughException) {
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return false;
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}
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$this->renew_price = $price;
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if (! $this->isTrial()) {
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$this->expired_at = now()->addMonth();
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}
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$this->status = 'active';
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$this->save();
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return true;
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}
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public function isTrial(): bool
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{
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return $this->trial_ends_at !== null;
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}
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public function safeDelete()
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{
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// 如果是试用，那么就直接删除
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if ($this->isTrial() || $this->isExpired() || $this->isDraft() || ! $this->renew_price) {
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$this->delete();
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return;
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}
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// 如果是正式订阅，那么就按使用天数计算退款
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$days = $this->expired_at ? $this->expired_at->diffInDays(now()) : 27;
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// 获取 create_at 当时的月份的天数
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$daysInMonth = $this->created_at->daysInMonth;
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// 按照使用天数计算退款(bcdiv 保留两位小数)
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$refund = bcdiv($this->renew_price, $daysInMonth, 2) * $days;
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// 如果退款金额大于 0，那么就退款
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if ($refund > 0) {
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$this->user->charge($refund, 'balance', '订阅: '.$this->name.' 退款', [
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'module_id' => $this->module_id,
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'user_id' => $this->user_id,
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'subscription_id' => $this->id,
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]);
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$this->module->reduce($refund, '订阅: '.$this->name.' 退款', false, [
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'module_id' => $this->module_id,
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'user_id' => $this->user_id,
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'subscription_id' => $this->id,
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]);
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}
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$this->delete();
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}
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public function isExpired(): bool
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{
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return $this->expired_at && $this->expired_at->isPast();
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}
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public function isDraft(): bool
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{
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return $this->status === 'draft';
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}
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}
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