package dto

import (
	"errors"

	"github.com/Caknoooo/go-gin-clean-starter/database/entities"
	"github.com/Caknoooo/go-gin-clean-starter/pkg/constants"
	pkgdto "github.com/Caknoooo/go-gin-clean-starter/pkg/dto"
	"github.com/Caknoooo/go-gin-clean-starter/pkg/utils"
	"github.com/google/uuid"
)

const (
	MESSAGE_FAILED_CREATE_PRODUCT     = "failed create product"
	MESSAGE_SUCCESS_CREATE_PRODUCT    = "success create product"
	MESSAGE_FAILED_GET_PRODUCT        = "failed get product"
	MESSAGE_SUCCESS_GET_PRODUCT       = "success get product"
	MESSAGE_FAILED_UPDATE_PRODUCT     = "failed update product"
	MESSAGE_SUCCESS_UPDATE_PRODUCT    = "success update product"
	MESSAGE_FAILED_DELETE_PRODUCT     = "failed delete product"
	MESSAGE_SUCCESS_DELETE_PRODUCT    = "success delete product"
	MESSAGE_FAILED_GET_DATA_FROM_BODY = "failed get data from body"
	MESSAGE_FAILED_ASSIGN_CROSS_REF   = "failed assign cross reference"
	MESSAGE_SUCCESS_ASSIGN_CROSS_REF  = "success assign cross reference"
	MESSAGE_FAILED_REMOVE_CROSS_REF   = "failed remove cross reference"
	MESSAGE_SUCCESS_REMOVE_CROSS_REF  = "success remove cross reference"
)

var (
	ErrCreateProduct  = errors.New("failed to create product")
	ErrGetProductById = errors.New("failed to get product by id")
	ErrUpdateProduct  = errors.New("failed to update product")
	ErrDeleteProduct  = errors.New("failed to delete product")
	ErrAssignCrossRef = errors.New("failed to assign cross reference")
	ErrRemoveCrossRef = errors.New("failed to remove cross reference")
)

type (
	ProductCreateRequest struct {
		Name string `json:"name" binding:"required"`
		// RefNumber    string `json:"ref_number" binding:"required"`
		SKU          string `json:"sku" binding:"required"`
		Description  string `json:"description"`
		Status       string `json:"status" binding:"required"`
		IsReturnable bool   `json:"is_returnable"`
		// DimLength      float64 `json:"dim_length"`
		// DimWidth       float64 `json:"dim_width"`
		// DimHeight      float64 `json:"dim_height"`
		// Weight         float64 `json:"weight"`
		// Volume         float64 `json:"volume"`
		// MaxStackHeight int     `json:"max_stack_height"`
		// Temperature    string  `json:"temperature"`
		// IsHazardous    bool    `json:"is_hazardous"`
		// MinStock       int     `json:"min_stock"`
		// MaxStock       int     `json:"max_stock"`
		// ReplenishType  string  `json:"replenish_type"`
		// CycleCount     string  `json:"cycle_count"`
		// LotRules       string  `json:"lot_rules"`
		// LeadTime       int     `json:"lead_time"`
		// MultiplyRate   string  `json:"multiply_rate"`
		// DivideRate     float64 `json:"divide_rate"`
		ClientID   string  `json:"client_id" binding:"required"`
		CategoryID *string `json:"category_id"`
		UomID      *string `json:"uom_id"`
		// DimUomID       string  `json:"dim_uom_id"`
		// WeightUomID    string  `json:"weight_uom_id"`
		// VolumeUomID    string  `json:"volume_uom_id"`
		// MinStockUomID  string  `json:"min_stock_uom_id"`
		// MaxStockUomID  string  `json:"max_stock_uom_id"`
		// LeadTimeUomID  string  `json:"lead_time_uom_id"`
		// UomToUomID     string  `json:"uom_to_uom_id"`
	}

	ProductUpdateRequest struct {
		Name *string `json:"name"`
		// RefNumber      *string  `json:"ref_number"`
		SKU            *string  `json:"sku"`
		Description    *string  `json:"description"`
		Status         *string  `json:"status"`
		IsReturnable   *bool    `json:"is_returnable"`
		DimLength      *float64 `json:"dim_length"`
		DimWidth       *float64 `json:"dim_width"`
		DimHeight      *float64 `json:"dim_height"`
		Weight         *float64 `json:"weight"`
		Volume         *float64 `json:"volume"`
		MaxStackHeight *int     `json:"max_stack_height"`
		Temperature    *string  `json:"temperature"`
		IsHazardous    *bool    `json:"is_hazardous"`
		MinStock       *int     `json:"min_stock"`
		MaxStock       *int     `json:"max_stock"`
		ReplenishType  *string  `json:"replenish_type"`
		CycleCount     *string  `json:"cycle_count"`
		LotRules       *string  `json:"lot_rules"`
		LeadTime       *int     `json:"lead_time"`
		MultiplyRate   *string  `json:"multiply_rate"`
		DivideRate     *float64 `json:"divide_rate"`
		ClientID       *string  `json:"client_id"`
		CategoryID     *string  `json:"category_id"`
		UomID          *string  `json:"uom_id"`
		DimUomID       *string  `json:"dim_uom_id"`
		WeightUomID    *string  `json:"weight_uom_id"`
		VolumeUomID    *string  `json:"volume_uom_id"`
		MinStockUomID  *string  `json:"min_stock_uom_id"`
		MaxStockUomID  *string  `json:"max_stock_uom_id"`
		LeadTimeUomID  *string  `json:"lead_time_uom_id"`
		UomToUomID     *string  `json:"uom_to_uom_id"`
	}

	ProductResponse struct {
		ID              string                                `json:"id"`
		Name            string                                `json:"name"`
		RefNumber       string                                `json:"ref_number"`
		SKU             string                                `json:"sku"`
		Description     string                                `json:"description"`
		Status          string                                `json:"status"`
		IsReturnable    bool                                  `json:"is_returnable"`
		DimLength       float64                               `json:"dim_length"`
		DimWidth        float64                               `json:"dim_width"`
		DimHeight       float64                               `json:"dim_height"`
		Weight          float64                               `json:"weight"`
		Volume          float64                               `json:"volume"`
		MaxStackHeight  int                                   `json:"max_stack_height"`
		Temperature     string                                `json:"temperature"`
		IsHazardous     bool                                  `json:"is_hazardous"`
		MinStock        int                                   `json:"min_stock"`
		MaxStock        int                                   `json:"max_stock"`
		ReplenishType   string                                `json:"replenish_type"`
		CycleCount      string                                `json:"cycle_count"`
		LotRules        string                                `json:"lot_rules"`
		LeadTime        int                                   `json:"lead_time"`
		MultiplyRate    string                                `json:"multiply_rate"`
		DivideRate      float64                               `json:"divide_rate"`
		Client          pkgdto.IdNameResponse                 `json:"client"`
		Category        pkgdto.IdNameResponse                 `json:"category"`
		Uom             pkgdto.IdNameResponse                 `json:"uom"`
		DimUom          pkgdto.IdNameResponse                 `json:"dim_uom"`
		WeightUom       pkgdto.IdNameResponse                 `json:"weight_uom"`
		VolumeUom       pkgdto.IdNameResponse                 `json:"volume_uom"`
		MinStockUom     pkgdto.IdNameResponse                 `json:"min_stock_uom"`
		MaxStockUom     pkgdto.IdNameResponse                 `json:"max_stock_uom"`
		LeadTimeUom     pkgdto.IdNameResponse                 `json:"lead_time_uom"`
		UomToUom        pkgdto.IdNameResponse                 `json:"uom_to_uom"`
		CrossReferences []ProductVendorResponse               `json:"cross_references"`
		InvTransactions []ProductInventoryTransactionResponse `json:"inv_transactions"`
	}

	CrossReferenceRequest struct {
		VendorIDs []string `json:"vendor_ids" binding:"required"`
	}

	ProductVendorResponse struct {
		ID            string `json:"id"`
		Name          string `json:"name"`
		SearchKey     string `json:"search_key"`
		Address       string `json:"address"`
		ContactPerson string `json:"contact_person"`
	}

	ProductInventoryTransactionResponse struct {
		ID                  string  `json:"id"`
		TransactionDate     string  `json:"transaction_date"`
		TransactionType     string  `json:"transaction_type"`
		TransactionQuantity float64 `json:"transaction_quantity"`
		Lot                 string  `json:"lot"`
		Locater             string  `json:"locater"`
		InvReceiptRef       string  `json:"inv_receipt_ref,omitempty"`
		InvIssueRef         string  `json:"inv_issue_ref,omitempty"`
		InvMoveRef          string  `json:"inv_move_ref,omitempty"`
	}
)

func MapProductToResponse(product entities.MProductEntity) ProductResponse {
	crossRefs := make([]ProductVendorResponse, 0, len(product.CrossReferences))
	for _, v := range product.CrossReferences {
		crossRefs = append(crossRefs, ProductVendorResponse{
			ID:            v.Vendor.ID.String(),
			Name:          v.Vendor.Name,
			Address:       v.Vendor.Address,
			ContactPerson: v.Vendor.ContactPerson,
			SearchKey:     v.Vendor.SearchKey,
		})
	}

	invTransactions := make([]ProductInventoryTransactionResponse, 0, len(product.InventoryTransactions))
	for _, it := range product.InventoryTransactions {
		var transactionQuantity float64
		var lot, locater, invReceiptRef, invIssueRef, invMoveRef string
		var transactionDate string
		valid := false

		// Receipt
		if it.InvReceipt.ID != uuid.Nil && it.InvReceipt.Status == constants.COMPLETED {
			invReceiptRef = it.InvReceipt.ReferenceNumber
			transactionDate = utils.DateTimeToString(it.TransactionDate)
			for _, line := range it.InvReceipt.ReceiptLines {
				if line.ProductID == it.ProductID {
					transactionQuantity = line.Quantity
					lot = line.BatchNumber
					valid = true
					break
				}
			}
		}

		// Issue
		if it.InvIssue.ID != uuid.Nil && it.InvIssue.Status == constants.COMPLETED {
			invIssueRef = it.InvIssue.DocumentNumber
			transactionDate = utils.DateTimeToString(it.TransactionDate)
			for _, line := range it.InvIssue.IssueLines {
				if line.ProductID == it.ProductID {
					transactionQuantity = line.IssuedQuantity
					valid = true
					break
				}
			}
		}

		// Move
		if it.InvMove.ID != uuid.Nil && it.InvMove.Status == constants.COMPLETED {
			invMoveRef = it.InvMove.MovementNumber
			transactionDate = utils.DateTimeToString(it.TransactionDate)
			for _, line := range it.InvMove.MovementLines {
				if line.ProductID == it.ProductID {
					transactionQuantity = line.MovedQuantity
					valid = true
					break
				}
			}
		}

		if valid {
			invTransactions = append(invTransactions, ProductInventoryTransactionResponse{
				ID:                  it.ID.String(),
				TransactionDate:     transactionDate,
				TransactionType:     it.TransactionType,
				TransactionQuantity: transactionQuantity,
				Lot:                 lot,
				Locater:             locater,
				InvReceiptRef:       invReceiptRef,
				InvIssueRef:         invIssueRef,
				InvMoveRef:          invMoveRef,
			})
		}
	}

	return ProductResponse{
		ID:             product.ID.String(),
		Name:           product.Name,
		RefNumber:      product.RefNumber,
		SKU:            product.SKU,
		Description:    product.Description,
		Status:         product.Status,
		IsReturnable:   product.IsReturnable,
		DimLength:      product.DimLength,
		DimWidth:       product.DimWidth,
		DimHeight:      product.DimHeight,
		Weight:         product.Weight,
		Volume:         product.Volume,
		MaxStackHeight: product.MaxStackHeight,
		Temperature:    product.Temperature,
		IsHazardous:    product.IsHazardous,
		MinStock:       product.MinStock,
		MaxStock:       product.MaxStock,
		ReplenishType:  product.ReplenishType,
		CycleCount:     product.CycleCount,
		LotRules:       product.LotRules,
		LeadTime:       product.LeadTime,
		MultiplyRate:   product.MultiplyRate,
		DivideRate:     product.DivideRate,
		Client: pkgdto.IdNameResponse{
			ID:   product.Client.ID.String(),
			Name: product.Client.Name,
		},
		Category: pkgdto.IdNameResponse{
			ID:   product.Category.ID.String(),
			Name: product.Category.Name,
		},
		Uom: pkgdto.IdNameResponse{
			ID:   product.Uom.ID.String(),
			Name: product.Uom.Name,
		},
		DimUom: pkgdto.IdNameResponse{
			ID:   product.DimUom.ID.String(),
			Name: product.DimUom.Name,
		},
		WeightUom: pkgdto.IdNameResponse{
			ID:   product.WeightUom.ID.String(),
			Name: product.WeightUom.Name,
		},
		VolumeUom: pkgdto.IdNameResponse{
			ID:   product.VolumeUom.ID.String(),
			Name: product.VolumeUom.Name,
		},
		MinStockUom: pkgdto.IdNameResponse{
			ID:   product.MinStockUom.ID.String(),
			Name: product.MinStockUom.Name,
		},
		MaxStockUom: pkgdto.IdNameResponse{
			ID:   product.MaxStockUom.ID.String(),
			Name: product.MaxStockUom.Name,
		},
		LeadTimeUom: pkgdto.IdNameResponse{
			ID:   product.LeadTimeUom.ID.String(),
			Name: product.LeadTimeUom.Name,
		},
		UomToUom: pkgdto.IdNameResponse{
			ID:   product.UomToUom.ID.String(),
			Name: product.UomToUom.Name,
		},
		CrossReferences: crossRefs,
		InvTransactions: invTransactions,
	}
}