package com.superbiz.agent.domain.entity;

import jakarta.persistence.*;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import com.superbiz.agent.domain.enums.FaultCategory;

import java.time.LocalDateTime;

/**
 * API 文档元数据实体
 * 对应表: api_document
 */
@Entity
@Table(name = "api_document", indexes = {
    @Index(name = "idx_doc_id", columnList = "doc_id"),
    @Index(name = "idx_fault_source", columnList = "fault_source"),
    @Index(name = "idx_status", columnList = "status"),
    @Index(name = "idx_created_at", columnList = "created_at")
}, uniqueConstraints = {
    @UniqueConstraint(name = "uk_file_hash", columnNames = "file_hash")
})
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class ApiDocument {

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

    @Column(name = "doc_id", unique = true, nullable = false, length = 64)
    private String docId;

    // 文档分类
    @Enumerated(EnumType.STRING)
    @Column(name = "fault_category", length = 32, columnDefinition = "VARCHAR(32)")
    private FaultCategory faultCategory = FaultCategory.GENERAL;

    @Column(name = "fault_source", length = 128)
    private String faultSource;

    @Column(name = "api_name", length = 128)
    private String apiName;

    @Column(name = "version", length = 32)
    private String version = "v1.0";

    // 文件信息
    @Column(name = "file_name", nullable = false, length = 256)
    private String fileName;

    @Column(name = "file_path", length = 512)
    private String filePath;

    @Column(name = "file_hash", length = 64)
    private String fileHash;

    @Column(name = "file_size")
    private Long fileSize;

    // 索引状态
    @Column(name = "status", length = 16)
    private String status = "PENDING";

    @Column(name = "chunk_count")
    private Integer chunkCount = 0;

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

    // Frontmatter 元数据
    @Column(name = "metadata", columnDefinition = "TEXT")
    private String metadata;

    // 时间字段
    @Column(name = "indexed_at")
    private LocalDateTime indexedAt;

    @Column(name = "created_at", nullable = false, updatable = false)
    private LocalDateTime createdAt;

    @Column(name = "updated_at")
    private LocalDateTime updatedAt;

    @PrePersist
    protected void onCreate() {
        createdAt = LocalDateTime.now();
        updatedAt = LocalDateTime.now();
    }

    @PreUpdate
    protected void onUpdate() {
        updatedAt = LocalDateTime.now();
    }
}