package com.aiteacher.book;

import jakarta.persistence.*;
import java.time.Instant;
import java.util.UUID;

@Entity
@Table(name = "book")
public class Book {

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

    @Column(name = "title", nullable = false, length = 500)
    private String title;

    @Column(name = "file_name", nullable = false, length = 500)
    private String fileName;

    @Column(name = "file_size_bytes", nullable = false)
    private long fileSizeBytes;

    @Column(name = "page_count")
    private Integer pageCount;

    @Enumerated(EnumType.STRING)
    @Column(name = "status", nullable = false, length = 20)
    private BookStatus status;

    @Column(name = "error_message", columnDefinition = "TEXT")
    private String errorMessage;

    @Column(name = "uploaded_at", nullable = false)
    private Instant uploadedAt;

    @Column(name = "processed_at")
    private Instant processedAt;

    // Constructors

    public Book() {
    }

    public Book(String title, String fileName, long fileSizeBytes) {
        this.title = title;
        this.fileName = fileName;
        this.fileSizeBytes = fileSizeBytes;
        this.status = BookStatus.PENDING;
        this.uploadedAt = Instant.now();
    }

    // Getters & Setters

    public UUID getId() {
        return id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getFileName() {
        return fileName;
    }

    public void setFileName(String fileName) {
        this.fileName = fileName;
    }

    public long getFileSizeBytes() {
        return fileSizeBytes;
    }

    public void setFileSizeBytes(long fileSizeBytes) {
        this.fileSizeBytes = fileSizeBytes;
    }

    public Integer getPageCount() {
        return pageCount;
    }

    public void setPageCount(Integer pageCount) {
        this.pageCount = pageCount;
    }

    public BookStatus getStatus() {
        return status;
    }

    public void setStatus(BookStatus status) {
        this.status = status;
    }

    public String getErrorMessage() {
        return errorMessage;
    }

    public void setErrorMessage(String errorMessage) {
        this.errorMessage = errorMessage;
    }

    public Instant getUploadedAt() {
        return uploadedAt;
    }

    public void setUploadedAt(Instant uploadedAt) {
        this.uploadedAt = uploadedAt;
    }

    public Instant getProcessedAt() {
        return processedAt;
    }

    public void setProcessedAt(Instant processedAt) {
        this.processedAt = processedAt;
    }
}