<?php

/**
 * JurnalPiCicilanOrderAset
 *
 * Controller scheduler untuk membuat jurnal akuntansi atas Purchase Invoice (PI)
 * cicilan order aset secara otomatis.
 *
 * Alur bisnis proses:
 *   1. Validasi parameter input (tanggal, branchCode, title, description, details)
 *   2. Insert header jurnal ke tabel `jurnal`
 *      - Nomor jurnal di-generate via fn_numbering('J')
 *      - Tipe jurnal: PAYMENT
 *      - Berisi: title, description, tanggal, regionalID, kode cabang, branchCompanyID
 *   3. Insert baris transaksi ke tabel `jurnal_tx` (untuk setiap baris cicilan)
 *      - Referensi ke jurnalID header
 *      - COA (Chart of Account) dan deskripsinya:
 *          * Sisi hutang cicilan → nilai DEBIT
 *          * Sisi pembayaran cicilan → nilai KREDIT
 *   4. Insert data tambahan ke tabel `jurnal_addon` (jika ada addonValue atau mItemID)
 *      - Referensi ke jurnalID dan jurnalTxID
 *      - Berisi: addonCode (default: "PICICIL"), addonValue, mItemID
 *
 * Endpoint:
 *   POST /mockup/scheduler/JurnalPiCicilanOrderAset/CreateJournal
 *   POST /mockup/scheduler/JurnalPiCicilanOrderAset/CreatePiInstallmentJournal
 *   GET  /mockup/scheduler/JurnalPiCicilanOrderAset/ListEligiblePurchaseOrderAssetContracts
 */
class JurnalPiCicilanOrderAset extends MY_Controller
{
    var $db;

    /**
     * Endpoint default — menampilkan nama controller sebagai penanda aktif.
     */
    public function index()
    {
        echo "Jurnal PI Cicilan Order Aset";
    }

    /**
     * Konstruktor — inisialisasi parent controller.
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * CreateJournal — Membuat jurnal PI cicilan order aset.
     *
     * Proses bisnis:
     *   1. Validasi semua parameter wajib: date, branchCode, title, description, details
     *   2. Ambil periodeID dari tanggal transaksi (tabel periode)
     *   3. Ambil regionalID dari branchCode (tabel m_branch)
     *   4. Ambil branchCompanyID dari branchCode (tabel m_branch_companydetail)
     *   5. Ambil jurnalTypeID dari kode tipe jurnal (default: "PAYMENT")
     *   6. Generate nomor jurnal otomatis via fn_numbering('J')
     *   7. Validasi balance: total debit harus sama dengan total credit
     *   8. INSERT header jurnal ke tabel `jurnal`:
     *      - jurnalNo         : nomor jurnal hasil generate
     *      - jurnalJurnalTypeID: tipe PAYMENT
     *      - jurnalTitle      : judul jurnal
     *      - jurnalDescription: keterangan jurnal
     *      - jurnalDate       : tanggal transaksi
     *      - JurnalS_RegionalID: ID regional cabang
     *      - jurnalM_BranchCode: kode cabang
     *   9. Untuk setiap baris detail, INSERT ke `jurnal_tx`:
     *      - jurnalTxJurnalID  : referensi ke header jurnal
     *      - jurnalTxCoaID     : COA yang digunakan (hutang cicilan / kas/bank)
     *      - jurnalTxDescription: keterangan baris (nama cicilan/aset)
     *      - jurnalTxDebit     : nilai hutang (sisi debit)
     *      - jurnalTxCredit    : nilai bayar (sisi kredit)
     *  10. Jika ada addonValue atau mItemID, INSERT ke `jurnal_addon`:
     *      - jurnalAddOnJurnalID  : referensi ke header jurnal
     *      - jurnalAddOnJurnalTxID: referensi ke baris jurnal_tx
     *      - jurnalAddOnCode      : kode addon (default: "PICICIL")
     *      - jurnalAddOnValue     : nilai tambahan (misal: nomor PI/kontrak)
     *      - jurnalAddOnM_ItemID  : ID item aset yang terkait
     *
     * Parameter (POST JSON):
     *   - date          : Tanggal jurnal (YYYY-MM-DD). Default: hari ini.
     *   - branchCode    : Kode cabang. WAJIB.
     *   - title         : Judul jurnal. WAJIB.
     *   - description   : Keterangan jurnal. WAJIB.
     *   - details       : Array baris transaksi. WAJIB, minimal 1 baris.
     *       - coaID       : ID Chart of Account. WAJIB per baris.
     *       - description : Keterangan baris.
     *       - debit       : Nilai debit (hutang cicilan).
     *       - credit      : Nilai kredit (pembayaran cicilan).
     *       - addonValue  : (opsional) Nilai addon, misal nomor PI.
     *       - mItemID     : (opsional) ID item aset.
     *       - addonCode   : (opsional) Kode addon. Default: "PICICIL".
     *   - periodeID     : (opsional) ID periode. Default: diambil dari tanggal.
     *   - regionalID    : (opsional) ID regional. Default: diambil dari branchCode.
     *   - branchCompanyID: (opsional) ID branch company. Default: diambil dari branchCode.
     *   - jurnalTypeID  : (opsional) ID tipe jurnal. Default: diambil dari jurnalTypeCode.
     *   - jurnalTypeCode: (opsional) Kode tipe jurnal. Default: "PAYMENT".
     *   - userID        : ID user yang membuat jurnal.
     *
     * @return JSON { jurnalID, jurnalNo, detailCount, addonCount }
     */
    public function CreateJournal()
    {
        try {
            $para = $this->sys_input;

            $date = isset($para["date"]) && $para["date"] != "" ? $para["date"] : date("Y-m-d");
            if (!$this->isValidDate($date)) {
                throw new Exception("Format tanggal tidak valid. Gunakan YYYY-MM-DD.");
            }

            $branchCode = isset($para["branchCode"]) ? trim($para["branchCode"]) : "";
            if ($branchCode == "") {
                throw new Exception("branchCode wajib diisi.");
            }

            $title = isset($para["title"]) ? trim($para["title"]) : "";
            if ($title == "") {
                throw new Exception("title wajib diisi.");
            }

            $description = isset($para["description"]) ? trim($para["description"]) : "";
            if ($description == "") {
                throw new Exception("description wajib diisi.");
            }

            $details = isset($para["details"]) && is_array($para["details"]) ? $para["details"] : [];
            if (count($details) == 0) {
                throw new Exception("details wajib diisi minimal 1 baris.");
            }

            $periodeID = isset($para["periodeID"]) && (int) $para["periodeID"] > 0
                ? (int) $para["periodeID"]
                : $this->getPeriodeIDByDate($date);
            if ($periodeID <= 0) {
                throw new Exception("Periode jurnal tidak ditemukan untuk tanggal {$date}.");
            }

            $regionalID = isset($para["regionalID"]) && (int) $para["regionalID"] > 0
                ? (int) $para["regionalID"]
                : $this->getRegionalIDByBranchCode($branchCode);
            if ($regionalID <= 0) {
                throw new Exception("regionalID wajib diisi atau harus bisa diturunkan dari branchCode.");
            }

            $branchCompanyID = isset($para["branchCompanyID"]) && (int) $para["branchCompanyID"] > 0
                ? (int) $para["branchCompanyID"]
                : $this->getBranchCompanyIDByBranchCode($branchCode);
            if ($branchCompanyID <= 0) {
                throw new Exception("branchCompanyID wajib diisi atau harus bisa diturunkan dari branchCode.");
            }

            $jurnalTypeID = isset($para["jurnalTypeID"]) && (int) $para["jurnalTypeID"] > 0
                ? (int) $para["jurnalTypeID"]
                : $this->getJurnalTypeID(isset($para["jurnalTypeCode"]) && $para["jurnalTypeCode"] != "" ? $para["jurnalTypeCode"] : "PAYMENT");
            if ($jurnalTypeID <= 0) {
                throw new Exception("jurnalTypeID / jurnalTypeCode tidak valid.");
            }

            $userID   = isset($para["userID"]) ? (int) $para["userID"] : 0;
            $jurnalNo = $this->generateJournalNumber();
            if ($jurnalNo === false || $jurnalNo == "") {
                throw new Exception("Gagal generate nomor jurnal.");
            }

            // Validasi balance: total debit harus sama dengan total credit
            $totalDebit  = 0;
            $totalCredit = 0;
            foreach ($details as $idx => $detail) {
                $debit  = isset($detail["debit"])  ? (float) $detail["debit"]  : 0;
                $credit = isset($detail["credit"]) ? (float) $detail["credit"] : 0;
                if ($debit < 0 || $credit < 0) {
                    throw new Exception("Nilai debit/credit tidak boleh negatif pada detail ke-" . ($idx + 1));
                }
                $totalDebit  += $debit;
                $totalCredit += $credit;
            }

            if (round($totalDebit, 2) !== round($totalCredit, 2)) {
                throw new Exception("Total debit dan credit harus sama. Debit={$totalDebit}, Credit={$totalCredit}");
            }

            $this->db->trans_begin();

            // -----------------------------------------------------------------
            // INSERT header jurnal ke tabel `jurnal`
            // -----------------------------------------------------------------
            $sqlHeader = "INSERT INTO jurnal (
                    jurnalM_BranchCompanyID,
                    JurnalS_RegionalID,
                    jurnalM_BranchCode,
                    jurnalperiodeID,
                    jurnalNo,
                    jurnalTitle,
                    jurnalDescription,
                    jurnalDate,
                    jurnalJurnalTypeID,
                    jurnalCreated,
                    jurnalM_UserID
                ) VALUES (?,?,?,?,?,?,?,?,?,NOW(),?)";

            $qryHeader = $this->db->query($sqlHeader, [
                $branchCompanyID,
                $regionalID,
                $branchCode,
                $periodeID,
                $jurnalNo,
                $title,
                $description,
                $date,
                $jurnalTypeID,
                $userID
            ]);
            if (!$qryHeader) {
                $this->db->trans_rollback();
                $this->sys_error_db("Gagal insert jurnal header.");
                exit;
            }

            $jurnalID         = $this->db->insert_id();
            $createdAddonCount = 0;

            // -----------------------------------------------------------------
            // INSERT baris transaksi ke tabel `jurnal_tx` (per baris cicilan)
            // -----------------------------------------------------------------
            foreach ($details as $idx => $detail) {
                $coaID         = isset($detail["coaID"])       ? (int)   $detail["coaID"]          : 0;
                $descriptionTx = isset($detail["description"]) ? trim($detail["description"])       : "";
                $debit         = isset($detail["debit"])       ? (float) $detail["debit"]           : 0;
                $credit        = isset($detail["credit"])      ? (float) $detail["credit"]          : 0;

                if ($coaID <= 0) {
                    $this->db->trans_rollback();
                    $this->sys_error_db("coaID wajib diisi pada detail ke-" . ($idx + 1));
                    exit;
                }

                // Sisi debit  = hutang cicilan (COA hutang)
                // Sisi kredit = pembayaran cicilan (COA kas/bank)
                $sqlTx = "INSERT INTO jurnal_tx (
                        jurnalTxJurnalID,
                        jurnalTxCoaID,
                        jurnalTxDescription,
                        jurnalTxDebit,
                        jurnalTxCredit,
                        jurnalTxCreated,
                        jurnalTxM_UserID
                    ) VALUES (?,?,?,?,?,NOW(),?)";

                $qryTx = $this->db->query($sqlTx, [
                    $jurnalID,
                    $coaID,
                    $descriptionTx,
                    $debit,
                    $credit,
                    $userID
                ]);
                if (!$qryTx) {
                    $this->db->trans_rollback();
                    $this->sys_error_db("Gagal insert jurnal_tx pada detail ke-" . ($idx + 1));
                    exit;
                }

                $jurnalTxID = $this->db->insert_id();

                // -----------------------------------------------------------------
                // INSERT data tambahan ke tabel `jurnal_addon` (jika ada)
                // Diisi jika ada addonValue (misal nomor PI) atau mItemID (ID aset)
                // -----------------------------------------------------------------
                $addonValue = isset($detail["addonValue"]) ? trim($detail["addonValue"])                                     : "";
                $mItemID    = isset($detail["mItemID"])    ? (int) $detail["mItemID"]                                        : 0;
                $addonCode  = isset($detail["addonCode"]) && $detail["addonCode"] != "" ? trim($detail["addonCode"]) : "PICICIL";

                if ($addonValue != "" || $mItemID > 0) {
                    $sqlAddon = "INSERT INTO jurnal_addon (
                            jurnalAddOnJurnalID,
                            jurnalAddOnJurnalTxID,
                            jurnalAddOnCode,
                            jurnalAddOnValue,
                            jurnalAddOnM_ItemID,
                            jurnalAddOnCreated,
                            jurnalAddOnCreatedUserID
                        ) VALUES (?,?,?,?,?,NOW(),?)";

                    $qryAddon = $this->db->query($sqlAddon, [
                        $jurnalID,
                        $jurnalTxID,
                        $addonCode,
                        $addonValue,
                        $mItemID > 0 ? $mItemID : null,
                        $userID
                    ]);
                    if (!$qryAddon) {
                        $this->db->trans_rollback();
                        $this->sys_error_db("Gagal insert jurnal_addon pada detail ke-" . ($idx + 1));
                        exit;
                    }
                    $createdAddonCount++;
                }
            }

            if ($this->db->trans_status() === false) {
                $this->db->trans_rollback();
                $this->sys_error_db("Transaksi jurnal gagal.");
                exit;
            }

            $this->db->trans_commit();

            $this->sys_ok([
                "jurnalID"    => $jurnalID,
                "jurnalNo"    => $jurnalNo,
                "detailCount" => count($details),
                "addonCount"  => $createdAddonCount
            ]);
        } catch (Exception $exc) {
            $this->sys_error($exc->getMessage());
        }
    }

    /**
     * CreatePiInstallmentJournal — Alias dari CreateJournal.
     *
     * Endpoint alternatif dengan nama yang lebih spesifik untuk konteks
     * pembuatan jurnal PI cicilan order aset. Memanggil CreateJournal secara langsung.
     *
     * @see CreateJournal()
     */
    public function CreatePiInstallmentJournal()
    {
        $this->CreateJournal();
    }

    /**
     * ListEligiblePurchaseOrderAssetContracts — Menampilkan daftar kontrak aset
     * yang memenuhi syarat untuk dibuatkan jurnal PI cicilan pada periode tertentu.
     *
     * Syarat kontrak eligible:
     *   - Kontrak aktif dan berstatus "belum lunas"
     *   - Nilai cicilan > 0
     *   - Jumlah cicilan terbayar < total cicilan
     *   - Tanggal kontrak masuk dalam rentang startDate–endDate
     *   - PO sudah berstatus Approved
     *   - Barang sudah diterima (receive_order_po sudah confirmed)
     *
     * Endpoint ini digunakan untuk preview/verifikasi sebelum proses generate jurnal
     * dijalankan secara massal oleh CRON.
     *
     * Parameter (GET/POST):
     *   - startDate : Awal periode (YYYY-MM-DD). Default: tanggal 1 bulan ini.
     *   - endDate   : Akhir periode (YYYY-MM-DD). Default: tanggal akhir bulan ini.
     *
     * @return JSON { startDate, endDate, total, records[] }
     */
    public function ListEligiblePurchaseOrderAssetContracts()
    {
        try {
            $para = $this->sys_input;

            $startDate = isset($para["startDate"]) && $para["startDate"] != ""
                ? $para["startDate"]
                : date("Y-m-01");
            $endDate = isset($para["endDate"]) && $para["endDate"] != ""
                ? $para["endDate"]
                : date("Y-m-t");

            if (!$this->isValidDate($startDate) || !$this->isValidDate($endDate)) {
                throw new Exception("Format tanggal tidak valid. Gunakan YYYY-MM-DD.");
            }

            if (strtotime($startDate) > strtotime($endDate)) {
                throw new Exception("startDate tidak boleh lebih besar dari endDate");
            }

            $records = $this->getEligiblePurchaseOrderAssetContracts($startDate, $endDate);

            $this->sys_ok([
                "startDate" => $startDate,
                "endDate"   => $endDate,
                "total"     => count($records),
                "records"   => $records
            ]);
        } catch (Exception $exc) {
            $this->sys_error($exc->getMessage());
        }
    }

    // =========================================================================
    // FUNGSI PRIVATE / HELPER
    // =========================================================================

    /**
     * generateJournalNumber — Generate nomor jurnal otomatis.
     *
     * Memanggil stored function MySQL fn_numbering('J') untuk mendapatkan
     * nomor jurnal berikutnya sesuai urutan penomoran yang berlaku.
     *
     * @return string|false  Nomor jurnal (misal: "J/2025/07/0001"), atau false jika gagal.
     */
    private function generateJournalNumber()
    {
        $qry = $this->db->query("SELECT fn_numbering('J') AS JNumber");
        if (!$qry || $qry->num_rows() == 0) {
            return false;
        }
        return $qry->row_array()["JNumber"];
    }

    /**
     * getPeriodeIDByDate — Ambil ID periode akuntansi berdasarkan tanggal transaksi.
     *
     * Periode diambil dari tabel `periode` yang aktif dan mencakup tanggal yang diberikan.
     * Digunakan untuk mengisi field jurnalperiodeID pada header jurnal.
     *
     * @param string $date  Tanggal transaksi (format YYYY-MM-DD)
     * @return int          periodeID yang sesuai, atau 0 jika tidak ditemukan
     */
    private function getPeriodeIDByDate($date)
    {
        $sql = "SELECT periodeID
                FROM periode
                WHERE periodeIsActive = 'Y'
                    AND DATE(?) BETWEEN periodeStartDate AND periodeEndDate
                LIMIT 1";
        $qry = $this->db->query($sql, [$date]);
        if (!$qry || $qry->num_rows() == 0) {
            return 0;
        }
        return (int) $qry->row_array()["periodeID"];
    }

    /**
     * getBranchCompanyIDByBranchCode — Ambil ID branch company berdasarkan kode cabang.
     *
     * Data diambil dari tabel `m_branch_companydetail` yang aktif.
     * Digunakan untuk mengisi field jurnalM_BranchCompanyID pada header jurnal.
     *
     * @param string $branchCode  Kode cabang (misal: "JKT-01")
     * @return int                branchCompanyID yang sesuai, atau 0 jika tidak ditemukan
     */
    private function getBranchCompanyIDByBranchCode($branchCode)
    {
        $sql = "SELECT M_BranchCompanyDetailM_BranchCompanyID AS branchCompanyID
                FROM m_branch_companydetail
                WHERE M_BranchCompanyDetailM_BranchCode = ?
                    AND M_BranchCompanyDetailIsActive = 'Y'
                LIMIT 1";
        $qry = $this->db->query($sql, [$branchCode]);
        if (!$qry || $qry->num_rows() == 0) {
            return 0;
        }
        return (int) $qry->row_array()["branchCompanyID"];
    }

    /**
     * getRegionalIDByBranchCode — Ambil ID regional berdasarkan kode cabang.
     *
     * Data diambil dari tabel `m_branch` yang aktif.
     * Digunakan untuk mengisi field JurnalS_RegionalID pada header jurnal.
     *
     * @param string $branchCode  Kode cabang (misal: "JKT-01")
     * @return int                regionalID yang sesuai, atau 0 jika tidak ditemukan
     */
    private function getRegionalIDByBranchCode($branchCode)
    {
        $sql = "SELECT M_BranchS_RegionalID AS regionalID
                FROM m_branch
                WHERE M_BranchCode = ?
                    AND M_BranchIsActive = 'Y'
                LIMIT 1";
        $qry = $this->db->query($sql, [$branchCode]);
        if (!$qry || $qry->num_rows() == 0) {
            return 0;
        }
        return (int) $qry->row_array()["regionalID"];
    }

    /**
     * getJurnalTypeID — Ambil ID tipe jurnal berdasarkan kode tipe.
     *
     * Data diambil dari tabel `jurnal_type` yang aktif.
     * Untuk PI cicilan order aset, kode yang digunakan adalah "PAYMENT".
     *
     * @param string $jurnalTypeCode  Kode tipe jurnal (misal: "PAYMENT")
     * @return int                    JurnalTypeID yang sesuai, atau 0 jika tidak ditemukan
     */
    private function getJurnalTypeID($jurnalTypeCode)
    {
        $sql = "SELECT JurnalTypeID
                FROM jurnal_type
                WHERE JurnalTypeCode = ?
                    AND JurnalTypeIsActive = 'Y'
                LIMIT 1";
        $qry = $this->db->query($sql, [$jurnalTypeCode]);
        if (!$qry || $qry->num_rows() == 0) {
            return 0;
        }
        return (int) $qry->row_array()["JurnalTypeID"];
    }

    /**
     * getEligiblePurchaseOrderAssetContracts — Ambil kontrak aset yang layak dibuatkan jurnal.
     *
     * Query ini mengambil semua kontrak dari `purchase_order_asset_contract` yang memenuhi
     * syarat berikut:
     *   - Kontrak aktif, status "belum lunas", nilai cicilan > 0
     *   - Cicilan terbayar masih kurang dari total cicilan
     *   - Tanggal kontrak masuk dalam rentang periode yang diberikan
     *   - Tanggal jatuh tempo cicilan sudah lewat atau sama dengan hari ini
     *   - PO sudah Approved dan aktif
     *   - Barang sudah diterima dan receive order sudah confirmed
     *
     * Data yang dikembalikan mencakup:
     *   - Detail kontrak (ID, nama, tanggal, nilai cicilan)
     *   - Data PO (nomor PO, supplier, payment term, warehouse)
     *   - Data cabang (kode cabang, nama, regionalID, branchCompanyID)
     *   - Data item PO pertama (sebagai referensi baris jurnal)
     *
     * @param string $startDate  Awal periode filter (YYYY-MM-DD)
     * @param string $endDate    Akhir periode filter (YYYY-MM-DD)
     * @return array             Array of row kontrak yang eligible
     */
    private function getEligiblePurchaseOrderAssetContracts($startDate, $endDate)
    {
        $sql = "SELECT
                    c.PurchaseOrderAssetContractID,
                    c.PurchaseOrderAssetContractPurchaseOrderID,
                    c.PurchaseOrderAssetContractName,
                    c.PurchaseOrderAssetContractStartDate,
                    c.PurchaseOrderAssetContractEndDate,
                    c.PurchaseOrderAssetContractInstallmentNumber,
                    c.PurchaseOrderAssetContractInstallmentPaid,
                    c.PurchaseOrderAssetContractInstallmentDate,
                    c.PurchaseOrderAssetContractInstallmentPayAmount,
                    c.PurchaseOrderAssetContractReceiveOrderPoID,
                    po.PurchaseOrderID,
                    po.PurchaseOrderNumber,
                    po.PurchaseOrderSupplierID,
                    po.PurchaseOrderPaymentTerm,
                    po.PurchaseOrderWarehouseType,
                    po.PurchaseOrderWarehouseID,
                    wh.WarehouseCode,
                    wh.WarehouseName,
                    wh.WarehouseType,
                    wh.WarehouseS_RegionalID AS WarehouseS_RegionalID,
                    wh.WarehouseM_BranchID AS WarehouseM_BranchID,
                    ro.ReceiveOrderPoID,
                    ro.ReceiveOrderPoConfirmed,
                    mi.M_ItemID AS ItemID,
                    mi.M_ItemCode AS ItemCode,
                    mi.M_ItemDesc AS ItemDesc,
                    mi.M_ItemFa_ClassID,
                    fc.Fa_ClassID AS ItemFaClassID,
                    fc.Fa_ClassName AS ItemFaClassName,
                    fc.Fa_ClassCoaID AS ItemCoaID,
                    fc.Fa_ClassCoaAccountNo AS ItemCoaAccountNo,
                    fc.Fa_ClassCoaDesc AS ItemCoaDesc,
                    m_branch.M_BranchCode,
                    m_branch.M_BranchName,
                    m_branch.M_BranchS_RegionalID,
                    m_branch_companydetail.M_BranchCompanyDetailM_BranchCompanyID AS M_BranchCompanyID,
                    ps.PurchaseOrderSummaryID,
                    ps.PurchaseOrderSummaryItemID,
                    ps.PurchaseOrderSummaryItemUnitID
                FROM purchase_order_asset_contract c

                -- Pastikan PO sudah Approved dan aktif
                JOIN purchase_order po
                    ON po.PurchaseOrderID = c.PurchaseOrderAssetContractPurchaseOrderID
                    AND po.PurchaseOrderIsActive = 'Y'
                    AND po.PurchaseOrderStatus = 'Approved'

                -- Data warehouse/gudang tujuan PO
                LEFT JOIN warehouse wh
                    ON wh.WarehouseID = po.PurchaseOrderWarehouseID

                -- Pastikan barang sudah diterima (receive order confirmed)
                JOIN (
                    SELECT
                        rd.ReceiveOrderPoDetailPurchaseOrderID,
                        MIN(ro0.ReceiveOrderPoID) AS ReceiveOrderPoID,
                        MAX(ro0.ReceiveOrderPoConfirmed) AS ReceiveOrderPoConfirmed
                    FROM receive_order_po ro0
                    JOIN receive_order_po_detail rd
                        ON rd.ReceiveOrderPoDetailReceiveOrderPoID = ro0.ReceiveOrderPoID
                        AND rd.ReceiveOrderPoDetailIsActive = 'Y'
                    WHERE ro0.ReceiveOrderPoIsActive = 'Y'
                        AND ro0.ReceiveOrderPoConfirmed = 'Y'
                    GROUP BY rd.ReceiveOrderPoDetailPurchaseOrderID
                ) ro
                    ON ro.ReceiveOrderPoDetailPurchaseOrderID = po.PurchaseOrderID

                -- Data cabang dari warehouse
                LEFT JOIN m_branch
                    ON m_branch.M_BranchID = wh.WarehouseM_BranchID
                    AND m_branch.M_BranchIsActive = 'Y'

                -- Data branch company untuk header jurnal
                LEFT JOIN m_branch_companydetail
                    ON m_branch_companydetail.M_BranchCompanyDetailM_BranchCode = m_branch.M_BranchCode
                    AND m_branch_companydetail.M_BranchCompanyDetailIsActive = 'Y'

                -- Ambil 1 item PO pertama sebagai referensi baris jurnal
                LEFT JOIN (
                    SELECT ps0.*
                    FROM purchase_order_summary ps0
                    JOIN (
                        SELECT
                            PurchaseOrderSummaryPurchaseOrderID,
                            MIN(PurchaseOrderSummaryID) AS PurchaseOrderSummaryID
                        FROM purchase_order_summary
                        WHERE PurchaseOrderSummaryIsActive = 'Y'
                        GROUP BY PurchaseOrderSummaryPurchaseOrderID
                    ) psx
                        ON psx.PurchaseOrderSummaryID = ps0.PurchaseOrderSummaryID
                ) ps
                    ON ps.PurchaseOrderSummaryPurchaseOrderID = po.PurchaseOrderID

                -- COA jurnal diambil dari item -> fa_class
                LEFT JOIN m_item mi
                    ON mi.M_ItemID = ps.PurchaseOrderSummaryItemID
                    AND mi.M_ItemIsActive = 'Y'
                LEFT JOIN fa_class fc
                    ON fc.Fa_ClassID = mi.M_ItemFa_ClassID
                    AND fc.Fa_ClassIsActive = 'Y'

                WHERE c.PurchaseOrderAssetContractIsActive = 'Y'
                    AND c.PurchaseOrderAssetContractStatus = 'belum lunas'
                    -- Hanya kontrak yang ada nilai cicilannya
                    AND IFNULL(c.PurchaseOrderAssetContractInstallmentPayAmount, 0) > 0
                    -- Hanya kontrak yang belum selesai seluruh cicilannya
                    AND IFNULL(c.PurchaseOrderAssetContractInstallmentPaid, 0) < IFNULL(c.PurchaseOrderAssetContractInstallmentNumber, 0)
                    -- Kontrak sudah mulai sebelum atau pada akhir periode
                    AND DATE(c.PurchaseOrderAssetContractStartDate) <= DATE(?)
                    -- Kontrak belum berakhir (atau tidak ada tanggal akhir)
                    AND (
                        c.PurchaseOrderAssetContractEndDate IS NULL
                        OR DATE(c.PurchaseOrderAssetContractEndDate) >= DATE(?)
                    )
                    -- Tanggal jatuh tempo cicilan sudah tiba
                    AND IFNULL(c.PurchaseOrderAssetContractInstallmentDate, 1) <= ?
                ORDER BY c.PurchaseOrderAssetContractID ASC";

        $qry = $this->db->query($sql, [$endDate, $startDate, (int) date("d", strtotime($endDate))]);
        if (!$qry) {
            $this->sys_error_db("Gagal mengambil data purchase_order_asset_contract.");
            exit;
        }

        return $qry->result_array();
    }

    /**
     * isValidDate — Validasi format tanggal YYYY-MM-DD.
     *
     * @param string $tanggal  String tanggal yang akan divalidasi
     * @return bool            true jika format valid, false jika tidak
     */
    private function isValidDate($tanggal)
    {
        $d = DateTime::createFromFormat("Y-m-d", $tanggal);
        return $d && $d->format("Y-m-d") === $tanggal;
    }
}