package models

import (
	"time"

	"github.com/google/uuid"
	"gorm.io/gorm"
)

// TrackLyrics stores lyrics content for a track (E3)
type TrackLyrics struct {
	ID        uuid.UUID      `gorm:"type:uuid;primaryKey" json:"id" db:"id"`
	TrackID   uuid.UUID      `gorm:"type:uuid;not null;uniqueIndex" json:"track_id" db:"track_id"`
	Content   string         `gorm:"type:text;not null" json:"content" db:"content"`
	CreatedAt time.Time      `gorm:"autoCreateTime" json:"created_at" db:"created_at"`
	UpdatedAt time.Time      `gorm:"autoUpdateTime" json:"updated_at" db:"updated_at"`
	DeletedAt gorm.DeletedAt `json:"-" db:"deleted_at"`

	Track Track `gorm:"foreignKey:TrackID;constraint:OnDelete:CASCADE" json:"-"`
}

// TableName defines the table name for GORM
func (TrackLyrics) TableName() string {
	return "track_lyrics"
}

// BeforeCreate hook for UUID
func (m *TrackLyrics) BeforeCreate(tx *gorm.DB) error {
	if m.ID == uuid.Nil {
		m.ID = uuid.New()
	}
	return nil
}