accounting workflows

app/assets/utils/classes_ac/posting/InvoicePosting.php

@@ -1,21 +1,42 @@
 <?php
-/**
- * InvoicePosting
- *
- * Builds the journal entry for a posted sales invoice.
- * DR: Accounts Receivable
- * CR: Revenue + Output VAT
- */
-class InvoicePosting
-{
-    private PDO $pdo;
-    private int $companyId;
+require_once __DIR__ . '/BasePosting.php';
 
-    public function __construct(PDO $pdo, int $company_id)
+class InvoicePosting extends BasePosting
+{
+    protected function getDocType(): string { return 'invoice'; }
+
+    protected function getSkuTotalAccountColumn(): string { return 'sales_account_code'; }
+
+    protected function fetchDocument(int $id): array
     {
-        $this->pdo       = $pdo;
-        $this->companyId = $company_id;
+        $sth = $this->pdo->prepare(
+            "SELECT i.*, COALESCE(c.contact_name, '') AS contact_name
+             FROM td_invoice i
+             LEFT JOIN md_contact c
+               ON c.company_id = i.company_id AND c.id = i.contact_id
+             WHERE i.company_id = :cid AND i.id = :id AND i.doc_type = 'invoice'
+             LIMIT 1"
+        );
+        $sth->execute([':cid' => $this->companyId, ':id' => $id]);
+        $doc = $sth->fetch(PDO::FETCH_ASSOC);
+        if (!$doc) throw new Exception("Invoice #{$id} not found.");
+        return $doc;
     }
 
-    // TODO: build(int $invoice_id): array  — returns [header, lines] ready for JournalManager
+    protected function getAmounts(array $doc): array
+    {
+        $grand_total = abs((float)$doc['grand_total']);
+        $tax         = abs((float)$doc['tax']);
+        return [
+            'grand_total' => $grand_total,
+            'tax'         => $tax,
+            'total'       => $grand_total - $tax,
+            'amount'      => $grand_total,
+        ];
+    }
+
+    protected function getDocDate(array $doc): string
+    {
+        return $doc['issued_date'] ?? date('Y-m-d');
+    }
 }