package com.yunhai.acaclassassign.entity;

import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import java.time.LocalDateTime;

/**
 * 分班结果推送记录：每项目一条（提交分班结果 → 推送班级管理）。
 * <p>推送与提交解耦：推送异常不回滚提交锁定，只影响本表状态；
 * 状态机 0未推送 → 4推送中 → 1已推送 / 2部分失败 / 3失败（推送中拒绝重复 Push）。
 * 重推幂等依赖被推方按 code/account 查重，本表只收敛状态与失败明细。</p>
 */
@Getter
@Setter
@NoArgsConstructor
@Entity
@Table(name = "aca_assign_push",
        uniqueConstraints = @UniqueConstraint(name = "uk_apush_project", columnNames = "project_id"))
public class AssignPush extends BaseEntity {

    public static final int STATUS_NONE = 0;

    public static final int STATUS_OK = 1;

    public static final int STATUS_PARTIAL = 2;

    public static final int STATUS_FAIL = 3;

    public static final int STATUS_PUSHING = 4;

    /** 所属分班项目（唯一） */
    @Column(name = "project_id", nullable = false)
    private Integer projectId;

    /** 状态：0未推送 1已推送 2部分失败 3失败 4推送中 */
    @Column(name = "status", nullable = false, columnDefinition = "TINYINT DEFAULT 0")
    private Integer status;

    /** 最近一次推送完成时间 */
    @Column(name = "push_time")
    private LocalDateTime pushTime;

    /** 本地班级id → 平台班级id（班级组id）映射 JSON：{"12":9901,...} */
    @Column(name = "class_map_json", columnDefinition = "TEXT")
    private String classMapJson;

    /** 未成功学生明细 JSON：[{"studentId":1,"name":"张三","reason":"..."}]（跨多次推送合并收敛） */
    @Column(name = "fail_json", columnDefinition = "TEXT")
    private String failJson;

    /** 摘要信息（成功 N 班 M 人 / 失败原因） */
    @Column(name = "msg", length = 512)
    private String msg;
}