package handlers

import (
	"bugulma/backend/internal/domain"

	"gorm.io/gorm"
)

// timelineItemHandler implements EntityHandler for TimelineItem entities
type timelineItemHandler struct{}

func NewTimelineItemHandler() domain.EntityHandler[*domain.TimelineItem] {
	return &timelineItemHandler{}
}

func (h *timelineItemHandler) GetEntityID(entity *domain.TimelineItem) string {
	return entity.GetEntityID()
}

func (h *timelineItemHandler) GetFieldValue(entity *domain.TimelineItem, field string) string {
	switch field {
	case "title":
		return entity.Title
	case "content":
		return entity.Content
	default:
		return ""
	}
}

func (h *timelineItemHandler) GetLocalizableFields() []string {
	return []string{"title", "content"}
}

func (h *timelineItemHandler) LoadEntities(db *gorm.DB, options domain.EntityLoadOptions) ([]*domain.TimelineItem, error) {
	var items []*domain.TimelineItem
	if err := db.Order(`"order" ASC`).Find(&items).Error; err != nil {
		return nil, err
	}
	return items, nil
}

func (h *timelineItemHandler) BuildFieldQuery(db *gorm.DB, field, value string) *gorm.DB {
	switch field {
	case "title":
		return db.Where("title = ?", value)
	case "content":
		return db.Where("content = ?", value)
	default:
		return db
	}
}

func (h *timelineItemHandler) GetEntityType() string {
	return "timeline_item"
}