# BLUEPRINT CETAK BIRU MODUL: PEMBELIAN PROYEK (PROJECT PROCUREMENT)
**Modul:** `pembelianprojek`  
**Workspace:** `new_san_variant`  
**Standard:** Single Variant Standard & Dual-Write Rollout  
**Tanggal Analisis:** 2026-07-29  

---

## 1. IDENTITAS MODUL

- **Nama Modul:** `pembelianprojek`
- **Pola Kompleksitas:** **Transaksi Kompleks** (Pengadaan Material & Sub-kontrak Khusus Proyek, Pembebanan Biaya ke Kode Proyek / WIP Work In Progress, Overdue Pass Otorisasi Proyek, & Journal Costing Proyek).
- **Jenis Transaksi (`jenisTr` Utama):**
  - `3463`: Tagihan Pembelian Material & Jasa Proyek (Project Procurement Invoice)

---

## 2. DAFTAR FUNGSI & LOGIKA BISNIS (REVERSE ENGINEERING)

### 2.1 Base Controller & Configuration

#### [Modul_Controller.php](file:///c:/xampp/htdocs/new_san_variant/application/modules/pembelianprojek/controllers/Modul_Controller.php)
- **Fungsi `__construct()`**: Load config `coTransaksiUi`, `coTransaksiCore`, `coTransaksiLayout`, `coTransaksiValues`.

---

### 2.2 Entry Pengadaan Proyek & Project Selector

#### [_processSelectProduct.php](file:///c:/xampp/htdocs/new_san_variant/application/modules/pembelianprojek/controllers/_processSelectProduct.php) & [_processPihak.php](file:///c:/xampp/htdocs/new_san_variant/application/modules/pembelianprojek/controllers/_processPihak.php)
- **Fungsi Project Item Selector**:
  - *Input*: `POST` ID Proyek (`projekID`), Vendor Supplier, Barang/Jasa Proyek, Variant ID.
  - *Logic*: Mengalokasikan biaya pembelian langsung sebagai komponen HPP Proyek (WIP - Work in Progress) sesuai kontrak proyek berjalan.

#### [Create.php](file:///c:/xampp/htdocs/new_san_variant/application/modules/pembelianprojek/controllers/Create.php)
- **Fungsi `index()`, `preview()`, `save()`**: Entry draf tagihan pembelian pengadaan proyek.

---

### 2.3 Executing & FollowUp Approval

#### [FollowUp.php](file:///c:/xampp/htdocs/new_san_variant/application/modules/pembelianprojek/controllers/FollowUp.php)
- **Fungsi `doFollowup()`** *(Execution Project Procurement)*:
  - *Query & Models*:
    1. **Project Cost Accumulation**: Update akumulasi realisasi biaya proyek pada `transaksi_values`.
    2. **Jurnal Pengadaan Proyek**: Memanggil `ComJurnal` mencatat Persediaan / WIP Proyek (D) vs Hutang Dagang Proyek (K).
    3. **Registry Update**: Log step registrasi di `transaksi_registry`.

---

## 3. IDENTIFIKASI PERBEDAAN DENGAN MOCKUP GLOBAL

| No | Komponen / Fitur Unik | Deskripsi & Perbedaannya dengan Mockup Standar |
|:--:|:----------------------|:------------------------------------------------|
| 1 | **Project Identity & Costing Engine (`_processPihak.php`)** | Mengaitkan seluruh pengadaan secara eksplisit ke ID Proyek / Nomor Kontrak Kerja. |
| 2 | **Work-in-Progress (WIP) Accounting Integration** | Pencatatan langsung ke akun Persediaan Dalam Proses (WIP Proyek) untuk analisis profitabilitas proyek. |

---

## 4. ARSITEKTUR KODE BARU (THE BLUEPRINT)

### 4.1 Struktur Controller Baru

```
application/modules/pembelianprojek/
├── config/
│   ├── coTransaksiCore.php
│   ├── coTransaksiUi.php
│   ├── coTransaksiLayout.php
│   └── coTransaksiValues.php
├── controllers/
│   ├── Modul_Controller.php       # Base controller
│   ├── Create.php                 # Form Project Procurement Entry
│   ├── FollowUp.php               # Approval & Execution Invoice
│   ├── Transaksi.php              # Project Procurement List
│   ├── ActivityReport.php         # Laporan Pengadaan Proyek
│   ├── History.php                # Riwayat Pembelian Proyek
│   ├── Printing.php               # Cetak Voucher Tagihan Proyek
│   ├── ViewDetails.php            # Modal Detail View
│   ├── _processSelectProduct.php  # Project Material Selector
│   └── _shoppingCart.php          # Cart Manager
└── views/
    ├── transaksi_modul.php
    ├── shoppingCart.php
    └── printing.php
```

---

### 4.2 Panduan Langkah-demi-Langkah Developer

1. **Langkah 1: Hubungkan ID Proyek pada `_processPihak.php` & `_processSelectProduct.php`**
   - Memastikan alokasi HPP Proyek tercatat di tingkat item transaksi.

2. **Langkah 2: Integrasikan `ComJurnal` pada `FollowUp.php`**
   - Mencatat saldo WIP Proyek dan Hutang Vendor.

3. **Langkah 3: Verifikasi PHP 5.6 & Update UAT Checklist**
   - Lakukan linting `C:\xampp\php\php.exe -l` dan update `docs/uat-checklist.md`.

---

### 5. KESIMPULAN & STATUS EKSEKUSI

- 🟢 **Pekerjaan Selesai (Completed & Verified)**:
  1. Blueprint modul `pembelianprojek` diselesaikan.
  2. File [blueprint_pembelianprojek.md](file:///c:/xampp/htdocs/new_san_variant/blueprint_pembelianprojek.md) dan `dev-jurnal.md` diterbitkan.