package mappers

import (
	"apskel-pos-be/internal/entities"
	"apskel-pos-be/internal/models"
)

// ToTierResponse converts a tier entity to a tier response
func ToTierResponse(tier *entities.Tier) *models.TierResponse {
	if tier == nil {
		return nil
	}

	return &models.TierResponse{
		ID:        tier.ID,
		Name:      tier.Name,
		MinPoints: tier.MinPoints,
		Benefits:  tier.Benefits,
		CreatedAt: tier.CreatedAt,
		UpdatedAt: tier.UpdatedAt,
	}
}

// ToTierResponses converts a slice of tier entities to tier responses
func ToTierResponses(tiers []entities.Tier) []models.TierResponse {
	responses := make([]models.TierResponse, len(tiers))
	for i, tier := range tiers {
		responses[i] = *ToTierResponse(&tier)
	}
	return responses
}

// ToTierEntity converts a create tier request to a tier entity
func ToTierEntity(req *models.CreateTierRequest) *entities.Tier {
	return &entities.Tier{
		Name:      req.Name,
		MinPoints: req.MinPoints,
		Benefits:  req.Benefits,
	}
}

// UpdateTierEntity updates a tier entity with update request data
func UpdateTierEntity(tier *entities.Tier, req *models.UpdateTierRequest) {
	if req.Name != nil {
		tier.Name = *req.Name
	}
	if req.MinPoints != nil {
		tier.MinPoints = *req.MinPoints
	}
	if req.Benefits != nil {
		tier.Benefits = req.Benefits
	}
}