package logic

import (
	"context"

	"muyu-apiserver/pkg/metrics"
	"muyu-apiserver/pkg/tenantctx"
	"muyu-apiserver/rpc/inventory/internal/svc"
	"muyu-apiserver/rpc/inventory/pb"

	"github.com/zeromicro/go-zero/core/logx"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

type ConfirmStockCheckLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewConfirmStockCheckLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ConfirmStockCheckLogic {
	return &ConfirmStockCheckLogic{
		ctx:    ctx,
		svcCtx: svcCtx,
		Logger: logx.WithContext(ctx),
	}
}

func (l *ConfirmStockCheckLogic) ConfirmStockCheck(in *pb.ConfirmStockCheckReq) (*pb.Empty, error) {
	check, err := l.svcCtx.StockCheckModel.FindOneByCheckId(l.ctx, in.CheckId)
	if err != nil {
		return nil, status.Error(codes.NotFound, "stock check not found")
	}

	if check.Status != 0 && check.Status != 1 {
		return nil, status.Error(codes.FailedPrecondition, "stock check cannot be confirmed in current status")
	}

	// In the three-layer model, stock is held in bolt records.
	// Confirming a stock check marks it as completed; bolt-level adjustments
	// are handled separately via the SaveBolts/SavePans endpoints.
	check.Status = 2
	err = l.svcCtx.StockCheckModel.Update(l.ctx, check)
	if err != nil {
		return nil, status.Error(codes.Internal, err.Error())
	}

	tenantId := tenantctx.ExtractTenantId(l.ctx)
	metrics.StockCheckConfirmedTotal.WithLabelValues(tenantId).Inc()

	return &pb.Empty{}, nil
}