package music

import (
	"fmt"

	"github.com/jmoiron/sqlx"
)

type Track struct {
    Number      int     `json:"number"`
    Title       string  `json:"title"`
    Description string  `json:"description"`
    Lyrics      string  `json:"lyrics"`
    PreviewURL  string  `json:"previewURL"`
}

// GETTERS

func (track Track) GetNumber() int {
	return track.Number
}

func (track Track) GetTitle() string {
	return track.Title
}

func (track Track) GetDescription() string {
	return track.Description
}

func (track Track) GetLyrics() string {
	return track.Lyrics
}

func (track Track) GetPreviewURL() string {
	return track.PreviewURL
}

// SETTERS

func (track Track) SetNumber(number int) error {
	// TODO: update DB
	track.Number = number
	return nil
}

func (track Track) SetTitle(title string) error {
	// TODO: update DB
	track.Title = title
	return nil
}

func (track Track) SetDescription(description string) error {
	// TODO: update DB
	track.Description = description
	return nil
}

func (track Track) SetLyrics(lyrics string) error {
	// TODO: update DB
	track.Lyrics = lyrics
	return nil
}

func (track Track) SetPreviewURL(previewURL string) error {
	// TODO: update DB
	track.PreviewURL = previewURL
	return nil
}

// DATABASE

func PullReleaseTracks(db *sqlx.DB, releaseID string) ([]Track, error) {
    var tracks = []Track{}

	track_rows, err := db.Query("SELECT number, title, description, lyrics, preview_url FROM musictracks WHERE release=$1", releaseID)
	if err != nil {
        return []Track{}, err
	}

	for track_rows.Next() {
        var track = Track{}

        err = track_rows.Scan(
            &track.Number,
            &track.Title,
            &track.Description,
            &track.Lyrics,
            &track.PreviewURL,
        )
        if err != nil {
            fmt.Printf("Error while pulling track for release %s: %s\n", releaseID, err)
            continue
        }

        tracks = append(tracks, track)
    }

    return tracks, nil
}