package promo

import (
	"context"

	promoModel "github.com/perfect-panel/server/internal/model/promo"
	"github.com/perfect-panel/server/internal/svc"
	"github.com/perfect-panel/server/internal/types"
	"github.com/perfect-panel/server/pkg/logger"
	"github.com/perfect-panel/server/pkg/xerr"
	"github.com/pkg/errors"
)

type CreatePromoRuleLogic struct {
	logger.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// Create promo rule
func NewCreatePromoRuleLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreatePromoRuleLogic {
	return &CreatePromoRuleLogic{
		Logger: logger.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *CreatePromoRuleLogic) CreatePromoRule(req *types.CreatePromoRuleRequest) (*types.PromoRule, error) {
	if err := validateRulePayload(req.Type, req.Params, req.Priority, req.StartTime, req.EndTime); err != nil {
		return nil, err
	}

	start, end := ruleTimes(req.StartTime, req.EndTime)
	data := &promoModel.Rule{
		Name:      req.Name,
		Type:      req.Type,
		Params:    string(req.Params),
		Priority:  req.Priority,
		Enabled:   *req.Enabled,
		StartTime: start,
		EndTime:   end,
	}
	if err := l.svcCtx.PromoModel.InsertRule(l.ctx, data); err != nil {
		l.Errorw("[CreatePromoRule] Database Error", logger.Field("error", err.Error()))
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "create promo rule failed: %v", err.Error())
	}
	clearRuleCache(l.ctx, l.svcCtx)
	resp := toRuleResponse(data)
	return &resp, nil
}