package net.ipksindia.dao

import net.ipksindia.ItemNotFoundException
import net.ipksindia.model.TransactionRequest
import java.sql.Date
import java.sql.ResultSet
import java.sql.SQLException

class TransactionDao {

    private val singleTransactionRequestQuery = """
       SELECT
            txn_no,
            TRIM(src_ac_no) AS src_ac_no,
            TRIM(dest_ac_no) AS dest_ac_no,
            ifsc_code,
            txn_amt,
            txn_date,
            t.teller_id,
            CASE
                WHEN t.ifsc_code LIKE 'WBSC%' THEN 'FAILED'
                ELSE 'RECEIVED'
            END AS status,
            SUBSTR(REGEXP_REPLACE(REGEXP_REPLACE(UPPER(beneficiary_name), '[^A-Z0-9 ]', ''), ' {2,}', ' '), 1, 35) AS beneficiary_name,
            beneficiary_add,
            t.pacs_id,
            comm_txn_no,
            comm_txn_amt,
            dccb_code,
            TO_NUMBER(t.cbs_br_code) AS br_code,
            SUBSTR(REGEXP_REPLACE(REGEXP_REPLACE(UPPER(remm_name), '[^A-Z0-9 ]', ''), ' {2,}', ' '),1,35) AS remitter_name,
            ipks_accno AS pacs_acc_no,
            da.link_accno AS cbs_sb_acc_no,
            'pacs_db' AS db_name,
            kh.mobile_no,
            kh.address_1 || kh.address_2 AS remitter_address,
            if.idi_bank_name AS beneficiary_bank_name,
            if.idi_branch_name AS beneficiary_branch_name
       FROM neft_rtgs_txn t
             JOIN dep_account da ON t.ipks_accno = da.key_1
             JOIN kyc_hdr kh ON da.customer_no = kh.cif_no
             JOIN idi_ifsc_dir_info if ON if.idi_ifsc_code = t.ifsc_code
       WHERE
           t.txn_no = ?
    """.trimIndent()

    private val transactionUpdateQuery = """
        INSERT INTO neft_rtgs_txn_queue (
            txn_no,
            src_ac_no,
            dest_ac_no,
            ifsc_code,
            txn_amt,
            txn_date,
            teller_id,
            status,
            beneficiary_name,
            beneficiary_add,
            pacs_id,
            comm_txn_no,
            comm_txn_amt,
            dccb_code,
            br_code,
            remitter_name,
            cbs_queue_no,
            pacs_acc_no,
            cbs_queue_no2
        ) VALUES (
            ?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?
        )
    """.trimIndent()

    fun updateSuccessTransaction(request: TransactionRequest, transferQueueNumber: String, neftQueueNumber: String) {
        try {
            DatabaseFactory.instance.getConnection().use { connection ->
                connection.prepareStatement(transactionUpdateQuery).also {
                    it.setString(1, request.transactionNumber)
                    it.setString(2, request.pacsCurrentAccountNumber)
                    it.setString(3, request.neftBeneficiaryAccountNumber)
                    it.setString(4, request.ifscCode)
                    it.setString(5, request.amount)
                    it.setDate(6, Date.valueOf(request.date))
                    it.setString(7, request.tellerId)
                    it.setString(8, "PROCESSED")
                    it.setString(9, request.beneficiaryName)
                    it.setString(10, request.beneficiaryAddress)
                    it.setString(11, request.pacsId)
                    it.setString(12, request.commissionTransactionNumber)
                    it.setString(13, request.commissionAmount)
                    it.setString(14, request.dccbCode)
                    it.setString(15, request.branchCode)
                    it.setString(16, request.remitterName)
                    it.setString(17, transferQueueNumber)
                    it.setString(18, request.pacsAccountNumber)
                    it.setString(19, neftQueueNumber)
                }.use { it.executeUpdate() }
            }
        } catch (e: ExceptionInInitializerError) {
            throw SQLException("Failed to connect to the database ${e.message}")
        }
    }

    fun getTransactionRequest(transactionNumber: String): TransactionRequest {
        return try {
            DatabaseFactory.instance.getConnection().use { connection ->
                connection.prepareStatement(singleTransactionRequestQuery).apply { setString(1, transactionNumber) }
                    .executeQuery()
                    .use { mapToObject(it) ?: throw ItemNotFoundException("Transaction Number", transactionNumber) }
            }
        } catch (e: ExceptionInInitializerError) {
            throw SQLException("Failed to connect to the database: ${e.message}")
        }
    }
}


private fun mapToObject(rs: ResultSet): TransactionRequest? {

    if (rs.next()) {
        return TransactionRequest(
            transactionNumber = rs.getString("txn_no"),
            pacsCurrentAccountNumber = rs.getString("src_ac_no"),
            neftBeneficiaryAccountNumber = rs.getString("dest_ac_no"),
            ifscCode = rs.getString("ifsc_code"),
            amount = rs.getString("txn_amt"),
            date = rs.getDate("txn_date").toLocalDate(),
            tellerId = rs.getString("teller_id"),
            status = rs.getString("status"),
            beneficiaryName = rs.getString("beneficiary_name") ?: "UNKNOWN",
            beneficiaryAddress = rs.getString("beneficiary_add") ?: "UNKNOWN",
            pacsId = rs.getString("pacs_id"),
            commissionTransactionNumber = rs.getString("comm_txn_no"),
            commissionAmount = rs.getString("comm_txn_amt"),
            dccbCode = rs.getString("dccb_code"),
            branchCode = rs.getString("br_Code"),
            remitterName = rs.getString("remitter_name"),
            pacsAccountNumber = rs.getString("pacs_acc_no"),
            linkedCBSAccountNumber = rs.getString("cbs_sb_acc_no"),
            mobileNumber = rs.getString("mobile_no") ?: "999999999",
            remitterAddress = rs.getString("remitter_address"),
            beneficiaryBankName = rs.getString("beneficiary_bank_name"),
            beneficiaryBranchName = rs.getString("beneficiary_branch_name"),
            senderAcctType = "10", //for savings as shared by c-edge
            beneficiaryAcctType = "10" //for savings as shared by c-edge
        )
    }
    return null
}