package com.hlab.yanalyst.domain.social;

import jakarta.persistence.*;
import lombok.AccessLevel;
import lombok.Getter;
import lombok.NoArgsConstructor;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;

import java.time.LocalDateTime;

@Entity
@Table(name = "social_videos",
        uniqueConstraints = @UniqueConstraint(name = "uk_social_video_channel_external",
                columnNames = {"channel_id", "external_video_id"}),
        indexes = @Index(name = "idx_social_video_published", columnList = "published_at"))
@Getter
@NoArgsConstructor(access = AccessLevel.PROTECTED)
@EntityListeners(AuditingEntityListener.class)
public class SocialVideo {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @ManyToOne(fetch = FetchType.LAZY, optional = false)
    @JoinColumn(name = "channel_id", nullable = false)
    private SocialChannel channel;

    @Column(name = "external_video_id", nullable = false, length = 300)
    private String externalVideoId;

    @Column(nullable = false, length = 2000)
    private String url;

    @Column(nullable = false, columnDefinition = "TEXT")
    private String title;

    @Column(name = "thumbnail_url", length = 4000)
    private String thumbnailUrl;

    @Column(name = "published_at")
    private LocalDateTime publishedAt;

    @Column(name = "duration_sec")
    private Integer durationSec;

    @CreatedDate
    @Column(name = "collected_at", updatable = false)
    private LocalDateTime collectedAt;

    public static SocialVideo from(SocialChannel channel, SocialVideoCandidate candidate) {
        SocialVideo video = new SocialVideo();
        video.channel = channel;
        video.externalVideoId = candidate.externalVideoId();
        video.url = candidate.url();
        video.title = candidate.title() == null || candidate.title().isBlank() ? "(제목 없음)" : candidate.title();
        video.thumbnailUrl = candidate.thumbnailUrl();
        video.publishedAt = candidate.publishedAt();
        video.durationSec = candidate.durationSec();
        return video;
    }

    public void fillDuration(Integer value) {
        if (durationSec == null && value != null && value > 0) durationSec = value;
    }
}