package com.ffii.fpsms.m18.service

import com.ffii.core.utils.JwtTokenUtil
import com.ffii.fpsms.api.service.ApiCallerService
import com.ffii.fpsms.m18.M18Config
import com.ffii.fpsms.m18.model.*
import com.ffii.fpsms.m18.utils.CommonUtils
import com.ffii.fpsms.modules.master.service.ItemsService
import com.ffii.fpsms.modules.master.service.ShopService
import com.ffii.fpsms.modules.purchaseOrder.enums.PurchaseOrderLineStatus
import com.ffii.fpsms.modules.purchaseOrder.enums.PurchaseOrderStatus
import com.ffii.fpsms.modules.purchaseOrder.service.PurchaseOrderLineService
import com.ffii.fpsms.modules.purchaseOrder.service.PurchaseOrderService
import com.ffii.fpsms.modules.purchaseOrder.web.model.SavePurchaseOrderLineRequest
import com.ffii.fpsms.modules.purchaseOrder.web.model.SavePurchaseOrderRequest
import org.slf4j.Logger
import org.slf4j.LoggerFactory
import org.springframework.stereotype.Service
import java.time.LocalDate
import java.time.LocalDateTime
import kotlin.reflect.full.memberProperties

@Service
open class M18PurchaseOrderService(
    val m18Config: M18Config,
    val apiCallerService: ApiCallerService,
    val m18DataLogService: M18DataLogService,
    val purchaseOrderService: PurchaseOrderService,
    val purchaseOrderLineService: PurchaseOrderLineService,
    val itemsService: ItemsService,
    val shopService: ShopService,
) {
    val dateTimeConverter = CommonUtils()
    val logger: Logger = LoggerFactory.getLogger(JwtTokenUtil::class.java)

    val lastModifyDate = LocalDate.now().minusDays(1)
    val commonConds="(beId=equal=${m18Config.BEID_PF}=or=beId=equal=${m18Config.BEID_PP}=or=beId=equal=${m18Config.BEID_TOA})=and=lastModifyDate=largerOrEqual=${lastModifyDate}"

    // M18 API
    val M18_LOAD_PURCHASE_ORDER_API = "/root/api/read/po"
    val M18_FETCH_PURCHASE_ORDER_LIST_API = "/search/search"

    open fun getPurchaseOrders(): M18PurchaseOrderListResponse? {
        val purchaseOrdersParams = M18PurchaseOrderListRequest(
            params = null,
            conds = commonConds
        )
        var purchaseOrders: M18PurchaseOrderListResponse? = null

        try {
            purchaseOrders = apiCallerService.get<M18PurchaseOrderListResponse, M18PurchaseOrderListRequest>(
                M18_FETCH_PURCHASE_ORDER_LIST_API,
                purchaseOrdersParams
            ).block()
        } catch (e: Exception) {
            logger.error("Error on Function - ${e.stackTrace}")
            logger.error(e.message)
        }

        return purchaseOrders
    }

    open fun getPurchaseOrder(id: Long): M18PurchaseOrderResponse? {
        val purchaseOrderParams = M18PurchaseOrderRequest(
            id = id
        )

        var purchaseOrder: M18PurchaseOrderResponse? = null

        try {
            purchaseOrder = apiCallerService.get<M18PurchaseOrderResponse, M18PurchaseOrderRequest>(
                M18_LOAD_PURCHASE_ORDER_API,
                purchaseOrderParams
            ).block()
        } catch (e: Exception) {
            logger.error("Error on Function - ${e.stackTrace}")
            logger.error(e.message)
        }

        return purchaseOrder
    }

    open fun savePurchaseOrders() {
        val purchaseOrders = getPurchaseOrders()
        val examplePurchaseOrders = listOf<Long>(4764034L)

        val successList = mutableListOf<Long>()
        val successDetailList = mutableListOf<Long>()
        val failList = mutableListOf<Long>()
        val failDetailList = mutableListOf<Long>()

        if (purchaseOrders != null) {
            // Loop for Purchase Orders (values)
            purchaseOrders.values.forEach { purchaseOrder ->
                val purchaseOrderDetail = getPurchaseOrder(purchaseOrder.id)

                var purchaseOrderId: Long? = null //FP-MTMS

                // Process for Purchase Order (mainPo)
                // Assume only one PO in the PO (search by PO ID)
                val mainPo = purchaseOrderDetail?.data?.mainPo?.get(0)
                val pot = purchaseOrderDetail?.data?.pot

                // purchase_order + m18_data_log table
                if (mainPo != null) {
                    val poRefType = "Purchase Order"

                    // Find the latest m18 data log by m18 id & type
                    val latestM18DataLog = m18DataLogService.findLatestM18DataLog(purchaseOrder.id, poRefType)

                    // Save to m18_data_log table
                    val mainPoJson =
                        mainPo::class.memberProperties.associate { prop -> prop.name to prop.getter.call(mainPo) }
                            .toMutableMap()

                    val saveM18PurchaseOrderLogRequest = SaveM18DataLogRequest(
                        id = null,
                        refType = poRefType,
                        m18Id = purchaseOrder.id,
                        m18LastModifyDate = dateTimeConverter.InstantToLocalDateTime(mainPo.lastModifyDate),
                        dataLog = mainPoJson,
                        status = true
                    )

                    val saveM18PurchaseOrderLog = m18DataLogService.saveM18DataLog(saveM18PurchaseOrderLogRequest)

                    try {
                        // Find the purchase_order if exist
                        val existingPurchaseOrder = latestM18DataLog?.id?.let { purchaseOrderService.findPurchaseOrderByM18Id(it) }

                        // Save to purchase_order table
                        val supplierId = shopService.findByM18Id(mainPo.venId)?.id
                        val savePurchaseOrderRequest = SavePurchaseOrderRequest(
                            id = existingPurchaseOrder?.id,
                            code = mainPo.code,
                            supplierId = supplierId,
                            orderDate = dateTimeConverter.InstantToLocalDateTime(mainPo.tDate),
                            estimatedArrivalDate = dateTimeConverter.InstantToLocalDateTime(mainPo.dDate),
                            completeDate = null,
                            status = PurchaseOrderStatus.PENDING.value,
                            m18DataLogId = saveM18PurchaseOrderLog.id,
                        )

                        val savePurchaseOrderResponse = purchaseOrderService.savePurchaseOrder(savePurchaseOrderRequest)
                        purchaseOrderId = savePurchaseOrderResponse.id

                        successList.add(purchaseOrder.id)
                    } catch (e: Exception) {
                        failList.add(purchaseOrder.id)
                        logger.error("Error on Function - ${e.stackTrace} | Type: Purchase Order | M18 ID: ${purchaseOrder.id} | Different? ${mainPo.id}")
                        logger.error(e.message)

                        val errorSaveM18PurchaseOrderLogRequest = SaveM18DataLogRequest(
                            id = saveM18PurchaseOrderLogRequest.id,
                            refType = "Purchase Order",
                            m18Id = purchaseOrder.id,
                            m18LastModifyDate = dateTimeConverter.InstantToLocalDateTime(mainPo.lastModifyDate),
                            dataLog = mainPoJson,
                            status = false
                        )

                        m18DataLogService.saveM18DataLog(errorSaveM18PurchaseOrderLogRequest)
                    }

                    // purchase_order_line + m18_data_log
                    if (pot != null) {
                        // Loop for Purchase Order Lines (pot)
                        pot.forEach { line ->
                            val poLineRefType = "Purchase Order Line"

                            // Find the latest m18 data log by m18 id & type
                            val latestM18DataLog = m18DataLogService.findLatestM18DataLog(line.id, poLineRefType)

                            // Save to m18_data_log table
                            val lineJson =
                                line::class.memberProperties.associate { prop -> prop.name to prop.getter.call(line) }
                                    .toMutableMap()
                            val saveM18PurchaseOrderLineLogRequest = SaveM18DataLogRequest(
                                id = null,
                                refType = poLineRefType,
                                m18Id = line.id,
                                m18LastModifyDate = dateTimeConverter.InstantToLocalDateTime(mainPo.lastModifyDate),
                                dataLog = lineJson,
                                status = true
                            )

                            val saveM18PurchaseOrderLineLog = m18DataLogService.saveM18DataLog(saveM18PurchaseOrderLineLogRequest)

                            val item = itemsService.findByM18Id(line.id)
                            logger.info("Item ID: ${item?.id}")

                            try {
                                // Find the purchase_order_line if exist
                                val existingPurchaseOrderLine = latestM18DataLog?.id?.let { purchaseOrderLineService.findPurchaseOrderLineByM18Id(it) }

                                // Save to purchase_order_line table
                                val savePurchaseOrderLineRequest = SavePurchaseOrderLineRequest(
                                    id = existingPurchaseOrderLine?.id,
                                    itemId = item?.id,
                                    uomId = null,
                                    purchaseOrderId = purchaseOrderId,
                                    qty = line.qty,
                                    price = line.amt,
                                    priceUnit = null,
                                    status = existingPurchaseOrderLine?.status?.value ?: PurchaseOrderLineStatus.PENDING.value,
                                    m18DataLogId = saveM18PurchaseOrderLineLog.id,
                                )

                                purchaseOrderLineService.savePurchaseOrderLine(savePurchaseOrderLineRequest)
                            } catch (e: Exception) {
                                failDetailList.add(line.id)
                                logger.error("Error on Function - ${e.stackTrace} | Type: Purchase Order Line | M18 ID: ${line.id}")
                                logger.error(e.message)

                                val errorSaveM18PurchaseOrderLineLogRequest = SaveM18DataLogRequest(
                                    id = saveM18PurchaseOrderLineLog.id,
                                    refType = "Purchase Order",
                                    m18Id = line.id,
                                    m18LastModifyDate = dateTimeConverter.InstantToLocalDateTime(mainPo.lastModifyDate),
                                    dataLog = lineJson,
                                    status = false
                                )

                                m18DataLogService.saveM18DataLog(errorSaveM18PurchaseOrderLineLogRequest)
                            }
                        }
                    } else {
                        val saveM18PurchaseOrderLineLogRequest = SaveM18DataLogRequest(
                            id = null,
                            refType = "Purchase Order Line",
                            m18Id = purchaseOrder.id,
                            m18LastModifyDate = dateTimeConverter.InstantToLocalDateTime(mainPo.lastModifyDate),
                            dataLog = mutableMapOf(Pair("Error Message", "Purchase Order Line is null")),
                            status = false
                        )

                        m18DataLogService.saveM18DataLog(saveM18PurchaseOrderLineLogRequest)
                    }
                } else {
                    val saveM18DataLogRequest = SaveM18DataLogRequest(
                        id = null,
                        refType = "Purchase Order",
                        m18Id = purchaseOrder.id,
//                        m18LastModifyDate = if(mainPo?.lastModifyDate != null) dateTimeConverter.InstantToLocalDateTime(mainPo.lastModifyDate) else LocalDateTime.now(),
                        m18LastModifyDate = LocalDateTime.now(),
                        dataLog = mutableMapOf(Pair("Error Message", "Purchase Order is null")),
                        status = false
                    )

                    m18DataLogService.saveM18DataLog(saveM18DataLogRequest)
                }
            }
        } else {
            logger.error("Purchase Order List is null. May occur errors.")
        }

        // End of save. Check result
        logger.info("Total Success (Purchase Order) (${successList.size}): $successList")
        if (failList.size > 0) {
            logger.error("Total Fail (Purchase Order) (${failList.size}): $failList")
        }

        logger.info("Total Success (Purchase Order Line) (${successDetailList.size}): $successDetailList")
        if (failDetailList.size > 0) {
            logger.error("Total Fail (Purchase Order Line) (${failDetailList.size}): $failDetailList")
        }
    }
}