add controllers, servoices
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@@ -0,0 +1,294 @@
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<?php
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namespace App\Services\Discounts;
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use App\Models\DiscountVoucher;
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use App\Models\Invoice;
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use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Facades\Log;
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class DiscountApplyService
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{
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private DiscountContextService $context;
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private DiscountInvoiceService $invoiceService;
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public function __construct(DiscountContextService $context, DiscountInvoiceService $invoiceService)
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{
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$this->context = $context;
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$this->invoiceService = $invoiceService;
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}
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public function applyVoucher(int $voucherId, array $parentIds, bool $allowAdditional, int $actorId): array
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{
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$schoolYear = $this->context->getSchoolYear();
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$semester = $this->context->getSemester();
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$voucher = DiscountVoucher::query()->find($voucherId);
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if (!$voucher) {
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return ['ok' => false, 'message' => 'Voucher not found.'];
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}
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$voucherDescription = trim((string) ($voucher->description ?? ''));
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$voucherDescription = preg_replace(
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'/^Auto-generated on \\d{4}-\\d{2}-\\d{2}\\s*[—-]\\s*reason:\\s*/i',
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'',
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$voucherDescription
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);
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$maxUsesRaw = $voucher->max_uses;
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$maxUses = ($maxUsesRaw === null || $maxUsesRaw === '') ? null : (int) $maxUsesRaw;
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$timesUsed = (int) ($voucher->times_used ?? 0);
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$remainingUses = ($maxUses === null) ? PHP_INT_MAX : ($maxUses - $timesUsed);
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if ($remainingUses <= 0) {
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return ['ok' => false, 'message' => 'This voucher has reached its maximum allowed uses.'];
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}
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if (!$allowAdditional) {
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$rows = DB::table('discount_usages as du')
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->select('i.parent_id')
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->join('invoices as i', 'i.id', '=', 'du.invoice_id')
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->whereIn('i.parent_id', $parentIds)
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->where('i.school_year', $schoolYear)
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->groupBy('i.parent_id')
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->get()
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->map(fn ($row) => (array) $row)
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->all();
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$blockedParentIds = array_map(static fn ($r) => (int) ($r['parent_id'] ?? 0), $rows);
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if (!empty($blockedParentIds)) {
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$parentIds = array_values(array_diff(array_map('intval', $parentIds), $blockedParentIds));
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}
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if (empty($parentIds)) {
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return [
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'ok' => false,
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'message' => 'All selected parents already have discounts. Enable "Allow additional discounts" to apply another.',
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];
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}
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}
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$paymentDate = function_exists('utc_now') ? utc_now() : now('UTC')->toDateTimeString();
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$fullyCoveredInvoiceIds = [];
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$touchedInvoiceIds = [];
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$appliedCount = 0;
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DB::beginTransaction();
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try {
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foreach ($parentIds as $parentId) {
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$invoices = Invoice::getInvoicesByUserId((int) $parentId, $schoolYear);
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if (empty($invoices)) {
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Log::warning('Discount apply: parent has no invoices', [
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'parent_id' => (int) $parentId,
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'voucher_id' => $voucherId,
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]);
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continue;
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}
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foreach ($invoices as $invoice) {
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if ($remainingUses <= 0) {
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break 2;
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}
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$invoiceId = (int) ($invoice['id'] ?? 0);
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if ($invoiceId <= 0) {
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continue;
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}
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$initialPreBalance = (float) $this->invoiceService->getCurrentInvoiceBalance($invoiceId, $schoolYear);
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if ($initialPreBalance <= 0) {
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continue;
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}
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if (!$allowAdditional) {
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$exists = DB::table('discount_usages as du')
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->join('invoices as i', 'du.invoice_id', '=', 'i.id')
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->where('du.voucher_id', $voucherId)
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->where('du.invoice_id', $invoiceId)
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->where('i.school_year', $schoolYear)
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->count();
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if ($exists) {
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continue;
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}
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}
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$rawDiscount = $voucher->discount_type === 'percent'
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? round(((float) ($invoice['total_amount'] ?? 0) * (float) $voucher->discount_value) / 100, 2)
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: (float) $voucher->discount_value;
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$discount = min($rawDiscount, $initialPreBalance);
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if ($discount <= 0) {
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continue;
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}
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$now = function_exists('utc_now') ? utc_now() : now('UTC')->toDateTimeString();
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DB::table('discount_usages')->insert([
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'voucher_id' => $voucherId,
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'invoice_id' => $invoiceId,
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'parent_id' => (int) $parentId,
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'discount_amount' => $discount,
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'description' => $voucherDescription,
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'school_year' => $schoolYear,
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'updated_by' => $actorId,
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'used_at' => $now,
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'created_at' => $now,
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'updated_at' => $now,
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'semester' => $semester,
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]);
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$newBalance = max(0.0, round($initialPreBalance - $discount, 2));
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DB::table('invoices')
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->where('id', $invoiceId)
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->update([
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'balance' => $newBalance,
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'has_discount' => 1,
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'updated_at' => $now,
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]);
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$postBalance = round($initialPreBalance - $discount, 2);
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if ($postBalance < 0) {
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$postBalance = 0.0;
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}
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$currentBalance = (float) $this->invoiceService->getCurrentInvoiceBalance($invoiceId, $schoolYear);
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DB::table('discount_vouchers')
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->where('id', $voucherId)
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->update([
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'times_used' => DB::raw('COALESCE(times_used,0) + 1'),
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]);
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$this->triggerPaymentReceived(
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$invoiceId,
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(string) $voucherId,
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$discount,
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$paymentDate,
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$initialPreBalance,
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$postBalance,
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$schoolYear,
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$semester
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);
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$touchedInvoiceIds[] = $invoiceId;
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$appliedCount++;
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$epsilon = 0.01;
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$fullyCovered = (abs($discount - $initialPreBalance) <= $epsilon)
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|| ($postBalance <= $epsilon)
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|| ($currentBalance <= $epsilon);
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if ($fullyCovered) {
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$fullyCoveredInvoiceIds[] = $invoiceId;
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}
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$remainingUses--;
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if ($remainingUses <= 0 && $maxUses !== null) {
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DB::table('discount_vouchers')
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->where('id', $voucherId)
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->update([
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'is_active' => 0,
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'updated_at' => $now,
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]);
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break 2;
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}
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}
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}
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DB::commit();
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} catch (\Throwable $e) {
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DB::rollBack();
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return ['ok' => false, 'message' => 'Voucher application failed. Transaction rolled back.'];
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}
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if ($appliedCount === 0) {
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return [
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'ok' => false,
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'message' => 'No discounts were applied. The voucher may already be used for these invoices or balances are zero.',
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];
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}
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if ($maxUses !== null) {
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$row = (array) DB::table('discount_vouchers')
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->select('times_used')
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->where('id', $voucherId)
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->first();
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$usedNow = (int) ($row['times_used'] ?? 0);
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if ($usedNow >= $maxUses) {
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DB::table('discount_vouchers')
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->where('id', $voucherId)
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->update([
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'is_active' => 0,
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'updated_at' => function_exists('utc_now') ? utc_now() : now('UTC')->toDateTimeString(),
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]);
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}
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}
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foreach (array_unique($touchedInvoiceIds) as $iid) {
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try {
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$this->invoiceService->recalculateInvoice($iid, $schoolYear);
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} catch (\Throwable $e) {
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Log::error('recalculateInvoice failed for invoice {id}: {err}', [
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'id' => $iid,
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'err' => $e->getMessage(),
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]);
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}
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}
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$updatedTotal = 0;
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foreach (array_unique($fullyCoveredInvoiceIds) as $iid) {
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try {
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$updatedTotal += $this->invoiceService->updateEnrollmentStatusIfPaid($iid, $schoolYear);
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} catch (\Throwable $e) {
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Log::error('updateEnrollmentStatusIfPaid failed for invoice {id}: {err}', [
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'id' => $iid,
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'err' => $e->getMessage(),
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]);
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}
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}
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return [
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'ok' => true,
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'message' => $updatedTotal > 0
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? 'Voucher applied successfully and enrollments updated.'
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: 'Voucher applied successfully.',
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'appliedCount' => $appliedCount,
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'updatedEnrollments' => $updatedTotal,
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'touchedInvoices' => array_values(array_unique($touchedInvoiceIds)),
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];
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}
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private function triggerPaymentReceived(
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int $invoiceId,
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string $voucherId,
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float $amount,
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string $paymentDate,
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float $preBalance,
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float $postBalance,
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string $schoolYear,
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string $semester
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): void {
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try {
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[$eventData, $studentData] = $this->invoiceService->buildPaymentEventData(
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$invoiceId,
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$voucherId,
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$amount,
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'discount',
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$paymentDate,
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'',
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0,
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$preBalance,
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$postBalance,
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$schoolYear,
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$semester
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);
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if (class_exists(\CodeIgniter\Events\Events::class)) {
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\CodeIgniter\Events\Events::trigger('paymentReceived', $eventData, $studentData);
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} elseif (function_exists('event')) {
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event('paymentReceived', [$eventData, $studentData]);
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}
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} catch (\Throwable $e) {
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Log::warning('paymentReceived hook failed: ' . $e->getMessage());
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}
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}
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}
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